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Fujitsu AUU7RLF Design & Technical Manual
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Fujitsu AUU7RLF Design & Technical Manual

Fujitsu AUU7RLF Design & Technical Manual

Hybrid flex inverter system
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Table of Contents

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DTR_BMU004E_06
VD014E/06
VD014E/06
DESIGN & TECHNICAL MANUAL
Hybrid Flex Inverter System

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Table of Contents
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Summary of Contents for Fujitsu AUU7RLF

  • Page 1 DTR_BMU004E_06 VD014E/06 VD014E/06 DESIGN & TECHNICAL MANUAL Hybrid Flex Inverter System...

  • Page 2: Table Of Contents

    CONTENTS 1. GENERAL INFORMATION 2. MODEL SELECTION 3. OUTDOOR UNITS 4. INDOOR UNITS 5. CONTROL SYSTEM 6. SYSTEM DESIGN 7. OPTIONAL PARTS...

  • Page 3: General Information

    Hybrid Flex Inverter System 1. GENERAL INFORMATION DTR_BMU004E_03--CHAPTER01 2016.09.30...
  • Page 4 CONTENTS 1. GENERAL INFORMATION 1. FEATURES OF SYSTEM .............. 01 - 01 1-1. HIGH EFFICIENCY & COMPACT ............. 01 - 01 1-2. FLEXIBLE DESIGN & EASY INSTALLATION .......... 01 - 02 1-3. CENTRAL CONTROL ................01 - 05 2. MODEL LINE UP ................01 - 07 2-1.

  • Page 5: General Information

    1. FEATURES OF SYSTEM 1-1. HIGH EFFICIENCY & COMPACT „ HIGH EFFICIENCY „ Adopting a large heat exchanger, high efficiency ventilation fan, DC twin rotary compressor, etc. realizes high efficiency operation. SEER: 17.0 HSPF: 9.8 Cooling Heating 3.89 15.0 16.0 17.0 SEER 10.0...

  • Page 6: Flexible Design & Easy Installation

    1-2. FLEXIBLE DESIGN & EASY INSTALLATION „ FLEXIBLE DESIGN „ ● 7 types, 23 models of indoor units can be selected ranging from 7,000 Btu to 24,000 Btu in capacity. Compact cassette Slim duct Floor Wall mounted ● Up to 8 indoor units can be connected to one outdoor unit. ●...
  • Page 7 „ EASY INSTALLATION „ ● Corresponding to diverse installation environments by use of branch connection system. Current model : 4 Rooms multi x 2 New model Branch box „ BRANCH BOX „ ● Branch box has an electronic expansion valve built-in, so it can control the refrigerant flow to each indoor unit.
  • Page 8 „ DECREASE OF INSTALLATION MISTAKE „ ● This operation allows the air conditioner to automatically check the status of the outdoor unit and check for wiring mistakes. z Installation procedure „ Refrigerant piping and electrical wiring work All Flare connection Sealing test Vacuum process Refrigerant piping...

  • Page 9: Central Control

    1-3. CENTRAL CONTROL Support comfort control system for the varied needs of the home and the condominium, etc. ● Central remote controller is connected directly to the branch box, making the installation process easier. ● Once the controller is connected, it can register and display all the indoor units automatically. „...
  • Page 10 „ VARIOUS OPERATION MODES SET BY REMOTE CONTROLLER „ z Outdoor unit low noise operation „ ● Users can choose from 4 low noise levels, depending on the conditioning load factor installation environment. Heat load 100 % Down Capacity 58 dB Operating sound (Time)

  • Page 11: Model Line Up

    „ Type Destination Function Function Function Function Function Model code Model change AO: Outdoor unit U: FUJITSU (Btu/h) R: Heat L: Inverter F: Flexible Z: Zoning code pump Extended 48: (48,000) line set - (01 - 07) - 1. GENERAL INFORMATION...

  • Page 12: Indoor Unit

    (ASU7RLF) 9,000 (ASU9RLF1) (ASU9RLF) (ASU9RLS2) 12,000 (ASU12RLF1) (ASU12RLF) (ASU12RLS2) 14,000 (ASU15RLF1) (ASU15RLS2) 18,000 (ASU18RLF) 24,000 (ASU24RLF) Compact cassette Slim duct Floor ARU7RLF AUU7RLF ARU9RLF AGU9RLF AUU9RLF ARU12RLF AGU12RLF AUU12RLF ARU18RLF AGU15RLF AUU18RLF ARU24RLF Wall mounted ASU7RLF1 ASU7RLF ASU9RLS2 ASU9RLF1 ASU9RLF...

  • Page 13: Controller

    2-3. CONTROLLER „ LINE UP „ Indoor units Wall mounted ASU7RLF1 Type Compact ASU7RLF ASU9RLS2 Model Slim duct ASU9RLF1 ASU18RLF Floor cassette ASU9RLF ASU12RLS2 ASU24RLF ASU12RLF1 ASU12RLF ASU15RLS2 ASU15RLF1 Central remote  *1  *1  *1  *1  *1 ...

  • Page 14: Separation Tube

    2-4. SEPARATION TUBE Separation tube Model: UTP-SX248A Liquid pipe Gas pipe 2-5. BRANCH BOX Primary type Secondary type Model: UTP-PU03A Model: UTP-PU03B - (01 - 10) - 1. GENERAL INFORMATION...

  • Page 15: Cassette Grille

    2-6. CASSETTE GRILLE „ LINE UP „ Indoor units Wall mounted ASU7RLF1 Type Compact ASU7RLF ASU9RLS2 Model Slim duct ASU9RLF1 ASU18RLF Floor cassette ASU9RLF ASU12RLS2 ASU12RLF1 ASU24RLF ASU15RLS2 ASU12RLF ASU15RLF1 Cassette grille  UTG-CCGF „ PARTS „ Cassette grille Model: UTG-CCGF - (01 - 11) - 1.

  • Page 16: Others

    2-7. OTHERS „ LINE UP „ Indoor units Wall mounted ASU7RLF1 Outdoor Type Compact Slim ASU7RLF ASU9RLS2 Model unit ASU9RLF1 ASU18RLF Floor cassette duct ASU9RLF ASU12RLS2 ASU24RLF ASU12RLF1 ASU12RLF ASU15RLS2 ASU15RLF1 Air outlet shutter plate  UTR-YDZB Insulation kit for high ...
  • Page 17 „ PARTS „ Air outlet shutter plate Insulation kit for high humidity Model: UTR-YDZB Model: UTZ-KXGC Insulation For Compact cassette type For Compact cassette type Fresh air intake kit External control set Model: UTZ-VXAA Model: UTD-ECS5A ( x 1 ) ( x 2 ) ( x 1 ) ( x 2 )
  • Page 18 „ PARTS „ Communication kit Communication kit Model: UTY-XCBXZ2 Model: UTY-XCBXZ1 For Wall mounted For Wall mounted (ASU7RLF1, ASU9RLF1, ASU12RLF1, ASU15RLF1) (ASU7RLF, ASU9RLF, ASU12RLF) type type Communication kit Model: UTY-TWBXF For Wall mounted (ASU9RLS2, ASU12RLS2, ASU15RLS2) type - (01 - 14) - 1.

  • Page 19: Model Selection

    Hybrid Flex Inverter System 2. MODEL SELECTION DTR_BMU004E_03--CHAPTER02 2016.09.30...
  • Page 20 CONTENTS 2. MODEL SELECTION 02 - 01 1. MODEL SELECTION PROCEDURE..........02 - 02 2. MODEL LINE UP ................02 - 02 2-1. OUTDOOR UNIT ..................02 - 02 2-2. INDOOR UNIT ................... 02 - 02 2-3. OPTIONAL PARTS..................02 - 04 3.

  • Page 21: Outdoor Units

    1. MODEL SELECTION PROCEDURE See 2-2. MODEL LINE UP (INDOOR UNIT) and Selection of indoor units 3-1. SELECTION PROCEDURE OF INDOOR UNIT AND OUTDOOR UNIT Selection of required optional parts See 2-3. MODEL LINE UP (OPTIONAL PARTS) ● Cassette grille for compact cassette type See 2-3.

  • Page 22: Indoor Units

    48,000 54,000 AOU48RLXFZ1 2 to 8 80 to 130 2-2. INDOOR UNIT Rated capacity (Btu/h) Type Model name Remarks Cooling Heating 7,000 8,100 AUU7RLF 9,000 10,200 AUU9RLF Compact UTG-CCGF (Cassette grille) cassette 12,000 13,500 AUU12RLF 18,000 20,000 AUU18RLF 7,000 8,100...
  • Page 23 „ CONTROLLER „ Items Model name Remarks Central remote controller UTY-DMMUM Wired remote controller UTY-RNNUM Accessory: Compact cassette, Slim duct Simple remote controller UTY-RSNUM UTY-LNHUM Accessory: Wall mounted ( ASU18RLF, ASU24RLF) AR-RAH1U Accessory: Wall mounted (ASU7RLF, ASU9RLF, ASU12RLF) Wireless remote controller AR-RED1U Accessory: Wall mounted (ASU9RLS2, ASU12RLS2,...

  • Page 24: Outdoor Unit

    3. MODEL SELECTION AND CAPACITY CALCULATION 3-1. SELECTION PROCEDURE OF INDOOR UNIT AND OUTDOOR UNIT Select indoor units and outdoor units, and make the capacity of each indoor unit be larger than cooling and heating load.  Calculate heat load of each room ...

  • Page 25: The Example Of Calculation

    3-2. THE EXAMPLE OF CALCULATION 3-2-1. COOLING EXAMPLE „ EXAMPLE 1 „ (When the connecting capacity for indoor unit is 100 % or more) Main piping length, L1 = 32.8 ft (10 m) Branchpiping length, L2 = 32.8 ft (10 m) Branch Branch Branch...
  • Page 26 „ EXAMPLE 2 „ (When the connecting capacity for indoor unit is 100 % or less) Main piping length, L1 = 32.8 ft (10 m) Branch piping length, L2 = 32.8 ft (10 m) Branch Branch Outdoor unit Indoor unit 1 Indoor unit 2 Indoor unit 3 Indoor unit 4...
  • Page 27 z Fig. 1 „ Indoor temperature Indoor unit Outdoor 70 °FDB 75 °FDB 80 °FDB 85 °FDB 90 °FDB connecting temperature 60 °FWB 63 °FWB 67 °FWB 71 °FWB 73 °FWB capacity (%) (°F) ●●● ●●● ●●● ●●● ●●● ●●● ●●●...
  • Page 28 z Fig. 2 „ i) Refer to 4. CAPACITY TABLE to find Y and Y using X and X ii) Calculate capacity of outdoor unit using following equation: × Y = (Y ) / (X (X - X1) + Y (X, Y) Capacity ratio of indoor units to outdoor unit, X (%) Indoor temperature...

  • Page 29: Heating Example

    3-2-2. HEATING EXAMPLE „ EXAMPLE 3 „ (When the connecting capacity for indoor unit is 100 % or more) Main piping length, L1 = 32.8 ft (10 m) Branch piping length, L2 = 32.8 ft (10 m) Branch Branch Branch Outdoor unit Indoor unit 1 Indoor unit 2...
  • Page 30 „ EXAMPLE 4 „ (When the connecting capacity for indoor unit is 100 % or more) Main piping length, L1 = 32.8 ft (10 m) Branch piping length, L2 = 32.8 ft (10 m) Branch Branch Branch Outdoor unit Indoor unit 1 Indoor unit 2 Indoor unit 3 Indoor unit 4...
  • Page 31 z Fig. 3 „ Outdoor Indoor temperature Indoor unit temperature connecting 60 °FDB 65 °FDB 70 °FDB 75 °FDB 78 °FDB capacity (%) °F °F ●●● ●●● ●●● ●●● ●●● ●●● ●●● ●●● ●●● ●●● ●●● ●●● ●●● ●●● ●●● ●●●...
  • Page 32 z Fig. 4 „ i) Refer to 4. CAPACITY TABLE to find Y and Y using X and X ii) Calculate capacity of outdoor unit using following equation: Y = (Y ) / (X )  (X - X1) + Y (X, Y) Capacity ratio of indoor units to outdoor unit, X (%) Outdoor...

  • Page 33: Capacity Table (Outdoor Unit)

    4. CAPACITY TABLE (OUTDOOR UNIT) 4-1. COOLING CAPACITY COOLING CAPACITY „ MODEL: AOU48RLXFZ1 „ z Capacity in kBtu/h „ Indoor temperature Indoor unit Outdoor 70 °FDB 75 °FDB 80 °FDB 85 °FDB 90 °FDB connecting temperature 60 °FWB 63 °FWB 67 °FWB 71 °FWB 73 °FWB...
  • Page 34 COOLING CAPACITY z Capacity in kW „ Indoor temperature Indoor unit Outdoor 21.1 °CDB 23.9 °CDB 26.7 °CDB 29.4 °CDB 32.2 °CDB connecting temperature 15.6 °CWB 17.2 °CWB 19.4 °CWB 21.7 °CWB 22.8 °CWB capacity (%) (°C) -5.0 16.7 2.80 17.5 2.85 18.4...

  • Page 35: Heating Capacity

    4-2. HEATING CAPACITY HEATING CAPACITY „ MODEL: AOU48RLXFZ1 „ z Capacity in kBtu/h „ Outdoor Indoor temperature Indoor unit temperature connecting 60 °FDB 65 °FDB 70 °FDB 75 °FDB 78 °FDB capacity (%) °F °F 40.9 5.59 39.2 5.61 38.2 5.64 36.2 5.69...
  • Page 36 HEATING CAPACITY z Capacity in kW „ Outdoor Indoor temperature Indoor unit temperature connecting 15.6 °CDB 18.3 °CDB 21.1 °CDB 23.9 °CDB 25.6 °CDB capacity (%) °C °C -15.0 -16.1 12.0 5.59 11.5 5.61 11.2 5.64 10.6 5.69 10.4 5.67 -10.0 -11.1 15.0...

  • Page 37: Capacity Compensation Coefficient

    5. CAPACITY COMPENSATION COEFFICIENT 5-1. COMPENSATION COEFFICIENT OF PIPE LENGTH The figures give the compensation coefficient of pipe length owing to installation position. Total compensation coefficient of pipe length multiplies compensation coefficient of branch piping by compensation coefficient of main piping. "Total compensation coefficient = main piping ×...
  • Page 38 „ CAPACITY CHANGE RATE BY BRANCH PIPING LENGTH „ z Change rate in capacity „ ● Refrigerant piping connection diameter: Liquid ø1/4 in (6.35 mm), Gas ø3/8 in (9.52 mm) „ ● Indoor unit model code: 7/9/12 „ 16.4 32.8 49.2 Branch piping length...

  • Page 39: Compensation Coefficient Of Frosting / Defrosting

    5-2. COMPENSATION COEFFICIENT OF FROSTING / DEFROSTING (HEATING OPERATION) To take the effects of accumulated frost and defrosting operation on heating capacity into consideration, the capacity of outdoor units should be corrected by compensation coefficient shown in the table below. Actual heating capacity = The value of capacity table ×...

  • Page 40: Cooling Capacity

    6. CAPACITY TABLE (INDOOR UNIT) 6-1. COOLING CAPACITY COOLING CAPACITY 6-1-1. COMPACT CASSETTE TYPE in kBtu/h „ MODEL: AUU7RLF „ Indoor temperature (°FDB / °FWB) Outdoor temperature 70.0 / 60.0 72.0 / 61.0 75.0 / 63.0 80.0 / 67.0 85.0 / 71.0 88.0 / 72.0...
  • Page 41 COOLING CAPACITY in kW „ MODEL: AUU7RLF „ Indoor temperature (°CDB / °CWB) Outdoor temperature 21.1 / 15.6 22.2 / 16.1 23.9 / 17.2 26.7 / 19.4 29.4 / 21.7 31.1 / 22.2 32.2 / 22.8 (°CDB) 1.63 1.23 1.80 1.37...

  • Page 42: Slim Duct Type

    COOLING CAPACITY 6-1-2. SLIM DUCT TYPE in kBtu/h „ MODEL: ARU7RLF „ Indoor temperature (°FDB / °FWB) Outdoor temperature 70.0 / 60.0 72.0 / 61.0 75.0 / 63.0 80.0 / 67.0 85.0 / 71.0 88.0 / 72.0 90.0 / 73.0 (°FDB) 5.60 4.34...
  • Page 43 COOLING CAPACITY in kBtu/h „ MODEL: ARU24RLF „ Indoor temperature (°FDB / °FWB) Outdoor temperature 70.0 / 60.0 72.0 / 61.0 75.0 / 63.0 80.0 / 67.0 85.0 / 71.0 88.0 / 72.0 90.0 / 73.0 (°FDB) 19.28 13.30 21.32 15.14 22.71 16.30...
  • Page 44 COOLING CAPACITY in kW „ MODEL: ARU7RLF „ Indoor temperature (°CDB / °CWB) Outdoor temperature 21.1 / 15.6 22.2 / 16.1 23.9 / 17.2 26.7 / 19.4 29.4 / 21.7 31.1 / 22.2 32.2 / 22.8 (°CDB) 1.63 1.26 1.80 1.41 1.92 1.52...
  • Page 45 COOLING CAPACITY in kW „ MODEL: ARU24RLF „ Indoor temperature (°CDB / °CWB) Outdoor temperature 21.1 / 15.6 22.2 / 16.1 23.9 / 17.2 26.7 / 19.4 29.4 / 21.7 31.1 / 22.2 32.2 / 22.8 (°CDB) 5.65 3.90 6.25 4.44 6.65 4.78...

  • Page 46: Wall Mounted Type

    COOLING CAPACITY 6-1-3. WALL MOUNTED TYPE in kBtu/h „ MODEL: ASU7RLF1 „ Indoor temperature (°FDB / °FWB) Outdoor temperature 70.0 / 60.0 72.0 / 61.0 75.0 / 63.0 80.0 / 67.0 85.0 / 71.0 88.0 / 72.0 90.0 / 73.0 (°FDB) 5.50 4.26...
  • Page 47 COOLING CAPACITY in kW „ MODEL: ASU7RLF1 „ Indoor temperature (°CDB / °CWB) Outdoor temperature 21.1 / 15.6 22.2 / 16.1 23.9 / 17.2 26.7 / 19.4 29.4 / 21.7 31.1 / 22.2 32.2 / 22.8 (°CDB) 1.61 1.25 1.77 1.40 1.91 1.54...
  • Page 48 COOLING CAPACITY in kBtu/h „ MODEL: ASU7RLF „ Indoor temperature (°FDB / °FWB) Outdoor temperature 70.0 / 60.0 72.0 / 61.0 75.0 / 63.0 80.0 / 67.0 85.0 / 71.0 88.0 / 72.0 90.0 / 73.0 (°FDB) 5.50 4.26 6.06 4.78 6.51 5.24...
  • Page 49 COOLING CAPACITY in kW „ MODEL: ASU7RLF „ Indoor temperature (°CDB / °CWB) Outdoor temperature 21.1 / 15.6 22.2 / 16.1 23.9 / 17.2 26.7 / 19.4 29.4 / 21.7 31.1 / 22.2 32.2 / 22.8 (°CDB) 1.61 1.25 1.77 1.40 1.91 1.54...
  • Page 50 COOLING CAPACITY in kBtu/h „ MODEL: ASU9RLS2 „ Indoor temperature (°FDB / °FWB) Outdoor temperature 70.0 / 60.0 72.0 / 61.0 75.0 / 63.0 80.0 / 67.0 85.0 / 71.0 88.0 / 72.0 90.0 / 73.0 (°FDB) 7.11 5.52 7.83 6.21 8.42 6.77...
  • Page 51 COOLING CAPACITY in kW „ MODEL: ASU9RLS2 „ Indoor temperature (°CDB / °CWB) Outdoor temperature 21.1 / 15.6 22.2 / 16.1 23.9 / 17.2 26.7 / 19.4 29.4 / 21.7 31.1 / 22.2 32.2 / 22.8 (°CDB) 2.09 1.62 2.30 1.82 2.47 1.99...
  • Page 52 COOLING CAPACITY in kBtu/h „ MODEL: ASU18RLF „ Indoor temperature (°FDB / °FWB) Outdoor temperature 70.0 / 60.0 72.0 / 61.0 75.0 / 63.0 80.0 / 67.0 85.0 / 71.0 88.0 / 72.0 90.0 / 73.0 (°FDB) 14.23 10.03 15.67 11.47 16.84 12.50...
  • Page 53 COOLING CAPACITY in kW „ MODEL: ASU18RLF „ Indoor temperature (°CDB / °CWB) Outdoor temperature 21.1 / 15.6 22.2 / 16.1 23.9 / 17.2 26.7 / 19.4 29.4 / 21.7 31.1 / 22.2 32.2 / 22.8 (°CDB) 4.17 2.94 4.59 3.36 4.94 3.66...

  • Page 54: Floor Type

    COOLING CAPACITY COOLING CAPACITY 6-1-4. FLOOR TYPE in kBtu/h in kBtu/h „ MODEL: AGU9RLF „ Indoor temperature (°FDB / °FWB) Outdoor temperature 70.0 / 60.0 72.0 / 61.0 75.0 / 63.0 80.0 / 67.0 85.0 / 71.0 88.0 / 72.0 90.0 / 73.0 (°FDB) 7.20...
  • Page 55 COOLING CAPACITY in kW „ MODEL: AGU9RLF „ Indoor temperature (°CDB / °CWB) Outdoor temperature 21.1 / 15.6 22.2 / 16.1 23.9 / 17.2 26.7 / 19.4 29.4 / 21.7 31.1 / 22.2 32.2 / 22.8 (°CDB) 2.11 1.62 2.32 1.80 2.49 1.94...

  • Page 56: Heating Capacity

    6-2. HEATING CAPACITY HEATING CAPACITY 6-2-1. COMPACT CASSETTE TYPE in kBtu/h „ MODEL: AUU7RLF „ Indoor temperature (°FDB) Outdoor Temperature 60.0 65.0 70.0 75.0 78.0 (°FDB) (°FWB) 6.39 5.90 5.43 4.95 4.31 14.0 7.16 6.60 6.08 0.00 4.83 12.0 23.0 7.96...
  • Page 57 HEATING CAPACITY in kW „ MODEL: AUU7RLF „ Indoor temperature (°CDB) Outdoor Temperature 15.6 18.3 21.1 23.9 25.6 (°CDB) (°CWB) -15.0 1.87 1.73 1.59 1.45 1.26 -16.1 -10.0 2.09 1.93 1.78 0.00 1.41 -11.1 -5.0 2.33 2.15 1.98 1.80 1.57 -7.2...

  • Page 58: Slim Duct Type

    HEATING CAPACITY 6-2-2. SLIM DUCT TYPE in kBtu/h „ MODEL: ARU7RLF „ Indoor temperature (°FDB) Outdoor Temperature 60.0 65.0 70.0 75.0 78.0 (°FDB) (°FWB) 6.39 5.90 5.43 4.95 4.31 14.0 7.16 6.60 6.08 5.55 4.83 12.0 23.0 7.96 7.34 6.76 6.17 5.37 19.0...
  • Page 59 HEATING CAPACITY in kW „ MODEL: ARU7RLF „ Indoor temperature (°CDB) Outdoor Temperature 15.6 18.3 21.1 23.9 25.6 (°CDB) (°CWB) -15.0 1.87 1.73 1.59 1.45 1.26 -16.1 -10.0 2.09 1.93 1.78 0.00 1.41 -11.1 -5.0 2.33 2.15 1.98 1.80 1.57 -7.2 2.54 2.35...

  • Page 60: Wall Mounted Type

    HEATING CAPACITY 6-2-3. WALL MOUNTED TYPE in kBtu/h „ MODEL: ASU7RLF1 „ Indoor temperature (°FDB) Outdoor Temperature 60.0 65.0 70.0 75.0 78.0 (°FDB) (°FWB) 6.34 5.88 5.42 4.98 4.44 14.0 7.10 6.58 6.06 5.58 4.97 12.0 23.0 7.89 7.32 6.74 6.20 5.53 19.0...
  • Page 61 HEATING CAPACITY in kW „ MODEL: ASU7RLF1 „ Indoor temperature (°CDB) Outdoor Temperature 15.6 18.3 21.1 23.9 25.6 (°CDB) (°CWB) -15.0 1.86 1.72 1.59 1.46 1.30 -16.1 -10.0 2.08 1.93 1.78 1.64 1.46 -11.1 -5.0 2.31 2.14 1.98 1.82 1.62 -7.2 2.53 2.34...
  • Page 62 HEATING CAPACITY in kBtu/h „ MODEL: ASU7RLF „ Indoor temperature (°FDB) Outdoor Temperature 60.0 65.0 70.0 75.0 78.0 (°FDB) (°FWB) 6.34 5.88 5.42 4.98 4.44 14.0 7.10 6.58 6.06 5.58 4.97 12.0 23.0 7.89 7.32 6.74 6.20 5.53 19.0 32.0 8.62 7.99 7.37...
  • Page 63 HEATING CAPACITY in kW „ MODEL: ASU7RLF „ Indoor temperature (°CDB) Outdoor Temperature 15.6 18.3 21.1 23.9 25.6 (°CDB) (°CWB) -15.0 1.86 1.72 1.59 1.46 1.30 -16.1 -10.0 2.08 1.93 1.78 1.64 1.46 -11.1 -5.0 2.31 2.14 1.98 1.82 1.62 -7.2 2.53 2.34...
  • Page 64 HEATING CAPACITY in kBtu/h „ MODEL: ASU9RLS2 „ Indoor temperature (°FDB) Outdoor Temperature 60.0 65.0 70.0 75.0 78.0 (°FDB) (°FWB) 8.00 7.41 6.83 6.29 5.60 14.0 8.95 8.30 7.65 7.04 6.27 12.0 23.0 9.95 9.23 8.51 7.83 6.98 19.0 32.0 10.87 10.08 9.29...
  • Page 65 HEATING CAPACITY in kW „ MODEL: ASU9RLS2 „ Indoor temperature (°CDB) Outdoor Temperature 15.6 18.3 21.1 23.9 25.6 (°CDB) (°CWB) -15.0 2.34 2.17 2.00 1.84 1.64 -16.1 -10.0 2.62 2.43 2.24 2.06 1.84 -11.1 -5.0 2.92 2.71 2.49 2.29 2.04 -7.2 3.19 2.96...
  • Page 66 HEATING CAPACITY in kBtu/h „ MODEL: ASU18RLF „ Indoor temperature (°FDB) Outdoor Temperature 60.0 65.0 70.0 75.0 78.0 (°FDB) (°FWB) 15.65 14.51 13.37 12.30 10.90 14.0 17.52 16.24 14.97 13.77 12.20 12.0 23.0 19.48 18.06 16.65 15.32 13.57 19.0 32.0 21.27 19.73 18.18...
  • Page 67 HEATING CAPACITY in kW „ MODEL: ASU18RLF „ Indoor temperature (°CDB) Outdoor Temperature 15.6 18.3 21.1 23.9 25.6 (°CDB) (°CWB) -15.0 4.59 4.25 3.92 3.61 3.19 -16.1 -10.0 5.13 4.76 4.39 4.04 3.58 -11.1 -5.0 5.71 5.29 4.88 4.49 3.98 -7.2 6.24 5.78...

  • Page 68: Floor Type

    HEATING CAPACITY 6-2-4. FLOOR TYPE in kBtu/h „ MODEL: AGU9RLF „ Indoor temperature (°FDB) Outdoor Temperature 60.0 65.0 70.0 75.0 78.0 (°FDB) (°FWB) 8.05 7.43 6.83 6.24 5.43 14.0 9.01 8.32 7.65 9.24 6.08 12.0 23.0 10.02 9.25 8.51 7.77 6.76 19.0 32.0...
  • Page 69 HEATING CAPACITY in kW „ MODEL: AGU9RLF „ Indoor temperature (°CDB) Outdoor Temperature 15.6 18.3 21.1 23.9 25.6 (°CDB) (°CWB) -15.0 2.37 2.18 2.01 1.84 1.60 -16.1 -10.0 2.65 2.45 2.25 2.71 1.79 -11.1 -5.0 2.95 2.72 2.50 2.28 1.99 -7.2 3.22 2.97...
  • Page 70 Hybrid Flex Inverter System 3. OUTDOOR UNIT & BRANCH BOX DTR_BMU004E_03--CHAPTER03 2016.09.30...
  • Page 71 CONTENTS 3. OUTDOOR UNIT & BRANCH BOX 03 - 01 1. SPECIFICATIONS ................. 03 - 01 1-1. OUTDOOR UNIT ..................03 - 02 1-2. ENERGY EFFICIENCIES ................03 - 03 1-3. BRANCH BOX ................... 03 - 04 2. DIMENSIONS ................03 - 04 2-1.

  • Page 72: Outdoor Unit & Branch Box

    1. SPECIFICATIONS 1-1. OUTDOOR UNIT Model name AOU48RLXFZ1 Power source 1 Phase ~ 208/230 V, 60 Hz Available voltage range 187-264V Number 2 to 8 Connectable indoor unit Capacity 80 to 130 % Btu/h 48,000 Rated Cooling 14.1 Max. Btu/h 51,100 Capacity Btu/h...

  • Page 73: Energy Efficiencies

    1-2. ENERGY EFFICIENCIES Non-duct Duct Combination of indoor unit ASU12 × 4 ARU12 × 4 Btu/h 48,000 48,000 48,000 Capacity 14.1 14.1 14.1 Input power 5.19 5.52 5.35 Cooling Current 23.0 24.5 23.7 Btu/h/W 9.25 8.70 8.97 SEER 17.0 14.7 15.8 Btu/h 54,000...

  • Page 74: Branch Box

    1-3. BRANCH BOX Model name UTP-PU03A (Primary) UTP-PU03B (Secondary) Casing color Paintingless Paintingless Connectable indoor unit number 1 to 3 units 1 to 3 units Max. combination Btu/h 62,000 62,000 Min. combination Btu/h 7,000 7,000 Power source 1 phase 208/230 V, 60 Hz 1 Phase 208/230 V, 60 Hz Available voltage range 187-264 V...

  • Page 75: Dimensions

    2. DIMENSIONS 2-1. OUTDOOR UNIT Unit: in (mm) „ MODEL: AOU48RLXFZ1 „ 6-9/16 (166) 25-9/16 (650) 6-1/16 (154) 1-7/8 (48) 1-7/16 (36) Top view 14-9/16 (370) 15/16 (24) 1/2 (12) 38-3/16 (970) ø1-1/8 (28): Cable port ø1-1/8 (28): Cable port 13/16 13/16 ø1-1/8 (28): Cable port...

  • Page 76: Branch Box

    2-2. BRANCH BOX „ MODELS: UTP-PU03A and UTP-PU03B „ 8-7/16 (214) Unit: in (mm) 6-7/8 (174) 6-1/16 (154) 5-4/16 (134) 4-5/16 6-15/16 (176) (110) 8-1/2 (216) 10-1/16 (256) 18-7/16 (469) 17 (432) 3-6/16 2-11/16 (85) (68) 2-15/16 (75) 17-1/16 (433) 7-11/16 (195) Indoor unit side Ceiling hanging...

  • Page 77: Installation Space

    3. INSTALLATION SPACE 3-1. OUTDOOR UNIT Caution ● The installation space shown in the following examples is based on an ambient temperature under cooling operation of 95 °FDB (35 °CDB) at the air intake of the outdoor unit. Provide more space around the air intake than shown in the examples if the ambient temperature exceeds 95 °FDB (35 °CDB) or if the thermal load of all of the outdoor units exceeds the capacity.

  • Page 78: Multiple Outdoor Unit Installation

    3-1-2. MULTIPLE OUTDOOR UNIT INSTALLATION ● Provide at least 1 in (25 mm) of space between the outdoor units if multiple units are „ installed. ● When routing the piping from the side of an outdoor unit, provide space for the piping. „...

  • Page 79: Outdoor Units Installation In Multi Row

    3-1-3. OUTDOOR UNITS INSTALLATION IN MULTI ROW Unit: in (mm) z Single parallel unit arrangement „ 6 (150) 79 (2000) or more 24 (600) 40 (1000) z Multiple parallel unit arrangement „ 20 (500) 119 (3000) or more 10 (250) 24 (600) or more 60 (1500)

  • Page 80: Branch Box

    3-2. BRANCH BOX ● The branch box can be installed onto the wall or hanging from the ceiling. „ ● The branch box can be installed and set horizontally or vertically. „ ● Provide a service access for maintenance and inspection purposes as shown in the figure „...

  • Page 81: Vertical Installation

    3-2-2. VERTICAL INSTALLATION ● A vertical installation can only be performed when mounting on the wall. „ (A vertical installation cannot be hung from the ceiling.) ● Be sure to install the control box so that the top side faces up. „...

  • Page 82: Refrigerant Circuit

    4. REFRIGERANT CIRCUIT Branch box 1 (primary type) Outdoor unit TH11 Indoor unit 1 TH10 TH11 TH12 Indoor TH10 Strainer unit 2 HP-SW Strainer TH10 TH11 TH12 Indoor unit 3 EEV4 TH12 Strainer Comp EEV1 EEV3 ressor Strainer Strainer SCHEX Strainer EEV3 Strainer...
  • Page 83 „ SYMBOL DESCRIPTION „ z Outdoor unit „ MARK DESCRIPTION Heat exchanger Oil separator SCHEX Sub-cool heat exchanger High pressure sensor HP-SW High pressure sensor switch Low pressure sensor 4-way valve 3-way valve EEV 1 Electric expansion valve 1 EEV 2 Electric expansion valve 2 Solenoid valve TH 1 Discharge temperature thermistor...

  • Page 84: Wiring Diagram

    5. WIRING DIAGRAM 5-1. OUTDOOR UNIT „ MODELS: AOU48RLXFZ1 „ - (03 - 13) - 3. OUTDOOR UNIT & BRANCH BOX...

  • Page 85: Branch Box

    5-2. BRANCH BOX „ MODEL: UTP-PU03A (Primary) „ „ MODEL: UTP-PU03B (Secondary) „ - (03 - 14) - 3. OUTDOOR UNIT & BRANCH BOX...

  • Page 86: Operation Range

    6. OPERATION RANGE Operation range Operation mode Indoor unit Outdoor unit 64 to 90 °FDB 23 to 115 °FDB Cooling/Dry (18 to 32 °CDB) (-5 to 46 °CDB) R.H. 80 % or less 60 to 88 °FDB 5 to 75 °FDB Heating (16 to 31 °CDB) (-15 to 24 °CDB)

  • Page 87: Noise Level Curve

    7. NOISE LEVEL CURVE „ MODEL: AOU48RLXFZ1 „ z Heating z Cooling „ N C -65 N C -65 N C -60 N C -60 N C -55 N C -55 N C -50 N C -50 N C -45 N C -45 N C -40 N C -40...
  • Page 88 „ SOUND LEVEL CHECK POINT „ Airflow Microphone 40 in (1 m) - (03 - 17) - 3. OUTDOOR UNIT & BRANCH BOX...

  • Page 89: Electrical Characteristics

    8. ELECTRICAL CHARACTERISTICS 8-1. OUTDOOR UNIT Rated value Electrical characteristics Comp Power supply Full load characteristics Wiring specifications *1 Outdoor fan motor resser Power cable Earth cable MAX. Voltage TOCA Limited wiring Output CKT. AWG size AWG size Model name Length*2 (kW) Cross-section...

  • Page 90: Safety Devices

    9. SAFETY DEVICES 9-1. OUTDOOR UNIT Safety device AOU48RLXFZ1 Main PCB AC 250 V, 3.15 A INV PCB DC 400 V, 5 A Fuse AC 250 V, 10 A Filter AC 250 V, 3.15 A Protector Filter AC 500 V, 50A Overcurrent protection Compressor protector Temperature protection...
  • Page 91 Hybrid Flex Inverter System 4. INDOOR UNITS DTR_BMU004E_04--CHAPTER04 2016.09.30...
  • Page 92 CONTENTS 4. INDOOR UNITS 04 - 01 1. FEATURES ................... 04 - 01 1-1. COMPACT CASSETTE TYPE ..............04 - 02 1-2. SLIM DUCT TYPE ................... 04 - 03 1-3. WALL MOUNTED TYPE ................ 04 - 07 1-4. FLOOR TYPE ..................04 - 08 2.
  • Page 93 CONTENTS 4. INDOOR UNITS 04 - 80 9. NOISE LEVEL CURVE ..............04 - 80 9-1. COMPACT CASSETTE TYPE ..............04 - 82 9-2. SLIM DUCT TYPE ................... 04 - 85 9-3. WALL MOUNTED TYPE ................. 04 - 92 9-4. FLOOR TYPE ..................04 - 94 9-5.

  • Page 94: Features

    1. FEATURES 1-1. COMPACT CASSETTE TYPE „ MODELS: AUU7RLF, AUU9RLF, AUU12RLF, and AUU18RLF „ „ FEATURES „ z Quiet quality „ z 2-stage turbo fan „ Optimization of wing form (laminar High efficiency design by 2 stage structure wing type) and wing number (7 blades...
  • Page 95 1-2. SLIM DUCT TYPE „ MODELS: ARU7RLF, ARU9RLF, ARU12RLF, ARU18RLF, and „ ARU24RLF Slim design and wide range of static pressure for flexible installation. „ FEATURES „ z Slim design „ z Air-intake „ This model is slim design, installable at Air-intake direction can be selected to the place where a ceiling is narrow.
  • Page 96 1-3. WALL MOUNTED TYPE „ MODELS: ASU7RLF1, ASU9RLF1, ASU12RLF1, and ASU15RLF1 „ „ FEATURES „ z High efficient compact design z More comfortable airflow „ Making the tube thin: Thin: 0.276 in (7 mm) ▼ 0.197 in (5 mm) Volume reduction of heat 30 % exchanger: z Quiet operation...
  • Page 97 „ MODELS: ASU7RLF, ASU9RLF, and ASU12RLF „ Compact and stylish design indoor unit „ FEATURES „ z Auto swing louver „ z High density heat transfer tube „ The auto swing louver function ensures that the air direction arrangement corresponds to the mode selected. Making the tube Ø5 0.276 in (7 mm) →...
  • Page 98 „ MODELS: ASU9RLS2, ASU12RLS2, and ASU15RLS2 „ „ FEATURES „ z Thin & Slim design „ Thin and slim design is realized by Ø 5mm heat Big open panel and High density multi path heat exchanger and high efficiency wind blower. exchanger Refrigerant Large intake...
  • Page 99 „ MODELS: ASU18RLF and ASU24RLF „ Simple & elegant appearance design „ FEATURES „ z Compact & slim design „ 39-5/16 in (998 mm) z “ Vertical airflow” provides powerful floor level heating „ ft (m) 7 (2.1) (24/30) 3 (1) 40 (12) ft (m) 10 (3) 20 (6)

  • Page 100: Floor Type

    1-4. FLOOR TYPE „ MODELS : AGU9RLF, AGU12RLF, and AGU15RLF „ „ FEATURES „ z2-fan & wide airflow „ Heating Prevents cold Window Cooling Prevents cold air draft from from falling window at operation at operation at stable at stable start start operation...
  • Page 101 2. SPECIFICATIONS 2-1. COMPACT CASSETTE TYPE Model name AUU7RLF AUU9RLF AUU12RLF AUU18RLF Power source 1ø 208/230 V, 60 Hz Available voltage range 187—264 V Btu/h 7,000 9,000 12,000 18,000 Cooling Rated 2.04 2.64 3.51 5.28 Capacity Btu/h 8,100 10,200 13,500...
  • Page 102 2-2. SLIM DUCT TYPE Model name ARU7RLF ARU9RLF ARU12RLF ARU18RLF ARU24RLF Power source 1ø 208/230 V, 60 Hz Available voltage range 187—264V Btu/h 7,000 9,000 12,000 18,000 24,000 Cooling Rated 2.04 2.64 3.51 5.28 7.02 Capacity Btu/h 8,100 10,200 13,500 20,000 27,000 Heating Rated...

  • Page 103: Wall Mounted Type

    2-3. WALL MOUNTED TYPE Model name ASU7RLF1 ASU9RLF1 ASU12RLF1 ASU15RLF1 Power source 1ø 208/230V, 60 Hz Available voltage range 187—264 V Btu/h 7,000 9,000 12,000 14,000 Cooling Rated 2.04 2.64 3.51 4.10 Capacity Btu/h 8,100 10,200 13,500 16,300 Heating Rated 2.37 3.00 3.96...
  • Page 104 Model name ASU7RLF ASU9RLF ASU12RLF Power source 1ø 208/230 V, 60 Hz Available voltage range 187—264V Btu/h 7,000 9,000 12,000 Cooling Rated 2.04 2.64 3.51 Capacity Btu/h 8,100 10,200 13,500 Heating Rated 2.37 3.00 3.96 Input power Running current 0.13 0.15 0.19 High...
  • Page 105 Model name ASU9RLS2 ASU12RLS2 ASU15RLS2 Power source 1ø 208/230 V, 60 Hz Available voltage range 187—264V Btu/h 9,000 12,000 14,000 Cooling Rated 2.64 3.51 4.10 Capacity Btu/h 10,200 13,500 16,300 Heating Rated 3.00 3.96 4.80 Input power Running current 0.14 0.17 0.20 High...
  • Page 106 Model name ASU18RLF ASU24RLF Power source 1ø 208/230 V, 60 Hz Available voltage range 187—264V Btu/h 18,000 24,000 Cooling Rated 5.28 7.02 Capacity Btu/h 20,000 27,000 Heating Rated 5.85 7.92 Input power Running current 0.32 0.53 High 542 (920) 659 (1120) 436 (740) 530 (900) Cooling...

  • Page 107: Floor Type

    2-4. FLOOR TYPE Model name AGU09RLF AGU12RLF AGU15RLF Power source 1ø 208/230 V, 60 Hz Available voltage range 187-264 V Btu/h 9,000 12,000 14,000 Cooling Rated 2.64 3.51 4.10 Capacity Btu/h 10,200 13,500 16,300 Heating Rated 3.00 3.96 4.80 Input power Running current 0.15 0.18...

  • Page 108: Electrical Characteristics

    3. ELECTRICAL CHARACTERISTICS Power supply Indoor rated Voltage Input power Type Model name AUU7RLF 208 / 230 0.19 / 0.19 17 / 18 0.15 / 0.15 AUU9RLF 208 / 230 0.19 / 0.19 17 / 18 0.15 / 0.15 Compact cassette...

  • Page 109: Dimensions

    4. DIMENSIONS 4-1. COMPACT CASSETTE TYPE „ MODELS: AUU7RLF, AUU9RLF, AUU12RLF, and AUU18RLF „ Unit: in (mm) • Cassette grille mounting state 20-7/8 (530): Hanging bolt position 5-5/16 9-13/16 (250) (135) op view Be sure to leave Maintenance space maintenance space...
  • Page 110 „ INSTALLATION PLACE „ Unit: in (mm) Strong and durable ceiling 11 (262) or more 40 (1000) 40 (1000) or more or more 95 (2400) or more Obstruction Floor H (The maximum height from floor to ceiling) Unit: in (mm) Model name AUU7 AUU9...

  • Page 111: Slim Duct Type

    4-2. SLIM DUCT TYPE „ MODELS: ARU7RLF, ARU9RLF, and ARU12RLF „ Unit: in (mm) 2 (51) 22-5/8 (574) View A Rear view (Drain hose) Drain port 3-15/16 (100) x 6 = 23-5/8 (600) 1-7/8 (47) 25-9/16 (650) 2-3/16 (55) 3-1/16 (78) 28-7/8 (734) 3-1/2 (89) 1-7/8 (48)
  • Page 112 „ MODEL: ARU18RLF „ Unit: in (mm) 2 (51) 30-1/2 (774) Rear view View A (Drain hose) Drain port 1-7/8 (47) 3-15/16 (100) x 8 = 31-1/2 (800) 2-3/16 (55) 3-1/16 (78) 33-7/16 (850) 3-1/2 (89) 36-3/4 (934) 3-7/16 (87) 4-11/16 (119) Top view 6-9/16 (167)
  • Page 113 „ MODEL: ARU24RLF „ Unit: in (mm) 38-3/8 (974) 2 (51) View A Rear view (Drain hose) Drain port 3-15/16 (100) x 10 = 39-3/8 (1000) 1-7/8 (47) 2-3/16 (55) 3-1/16 (78) 41-5/16 (1050) 44-5/8 (1134) 3-1/2 (89) 4-11/16 (119) 3-7/16 (87) Top view 6-9/16 (167)
  • Page 114 Unit: in (mm) „ INSTALLATION PLACE „ 12 (300) or more Strong and durable ceiling 1 (20) or more Indoor unit Left Right side side 1 (20) or more 12 (300) 4 (100) Service access Ceiling or more or more Floor 1 (10) 1 (10)
  • Page 115 Unit: in (mm) „ MAINTENANCE SPACE „ Provide a service access for inspection purposes as shown below. Do not place any wiring or illumination in the service space, as they will impede service. Service access Unit Control 12 (300) or more Service space - (04 - 22) - 4.

  • Page 116: Wall Mounted Type

    4-3. WALL MOUNTED TYPE „ MODELS: ASU7RLF1, ASU9RLF1, ASU12RLF1, and ASU15RLF1 „ Unit: in (mm) 33-1/16 (840) 8 (203) (33-1/16 (840)) 16-1/8 (410) 16-15/16 (430) 12-3/16 (310) 11-5/8 (295) Ø2-9/16 (Ø65) 6-1/2 (165) 5-11/16 (144) Ø2-9/16 (Ø65) for pipe inlet for pipe inlet 7 (178) 9-3/16 (233)
  • Page 117 „ INSTALLATION PLACE „ Unit: in (mm) Outline of unit 1 (25) or more 3 (52) or more 3 (70) 6 (130) or more 60 (1500) or more or more - (04 - 24) - 4. INDOOR UNITS...
  • Page 118 „ MODELS: ASU7RLF, ASU9RLF, and ASU12RLF „ Unit: in (mm) 8-1/16 (205) : Installed state 31-1/8 (790) 8 (203) 5-1/2 (140) *1 5-11/16 (145) *1 *1: Vertical airflow direction louver is downward. Outline of unit 3-11/16 (94) 17-11/16 (450) 11/16 (18) 2-1/16 (52) 8-1/4 (209) 9-5/16 (237)
  • Page 119 „ INSTALLATION PLACE „ Unit: in (mm) Outline of unit 2 (48) or more 3 (52) or more 4 (100) or more 3 (70) or more 60 (1500) or more - (04 - 26) - 4. INDOOR UNITS...
  • Page 120 „ MODELS: ASU9RLS2, ASU12RLS2, and ASU15RLS2 „ Unit: in (mm) 34-1/4 (870) 7-5/16 (185) 7-3/8(187) : Installed state Outline of Unit (34-1/4 (870)) 12-3/8 (315) 12-1/4 (311) Ø2-9/16 (65) Ø2-9/16 (65) for pipe inlet for pipe inlet 8-7/16 (214) 7 (178) (3-5/16 (84)) 13-7/8 (353) 14-5/16 (364)
  • Page 121 „ INSTALLATION PLACE „ Unit: in (mm) Outline of Unit 2 (50) or more 2 (50) or more 7 (162) or more 7 (162) or more 60 (1500) or more 10 (247) - (04 - 28) - 4. INDOOR UNITS...
  • Page 122 „ MODELS: ASU18RLF and ASU24RLF „ Unit: in (mm) 39-5/16 (998) 20-1/2 (520) 23-1/4 (590) (228) 1 (25) 28-3/8 (721) 20-1/2 (520) 1-7/16 (37) 13/16 (20) Unit center 17-5/16 (439) 15-3/4 (400) 11/16 x 7/16 (18 x 11) hole 5/8 (16) 4-7/16 (113) 15-1/4 (387) 9-9/16 (243)
  • Page 123 „ INSTALLATION PLACE „ Unit: in (mm) Outline of unit 3 (52) or more 3 (53) or more 4 (80) or more 5 (120) or more 60 (1500) or more - (04 - 30) - 4. INDOOR UNITS...

  • Page 124: Floor Type

    4-4. FLOOR TYPE „ MODELS: AGU9RLF, AGU12RLF, and AGU15RLF „ Unit: in (mm) 7-7/8 (200) 29-1/8 (740) Side view Front view „ INSTALLATION PLACE „ 4 (100) or more 4 (80) or more 4 (80) or more 2 (50) or more 4 (100) or below from the floor - (04 - 31) -...

  • Page 125: Wiring Diagrams

    5. WIRING DIAGRAMS 5-1. COMPACT CASSETTE TYPE „ MODELS: AUU7RLF, AUU9RLF, AUU12RLF, and AUU18RLF „ - (04 - 32) - 4. INDOOR UNITS...

  • Page 126: Slim Duct Type

    5-2. SLIM DUCT TYPE „ MODELS: ARU7RLF, ARU9RLF, ARU12RLF, ARU18RLF, and „ ARU24RLF - (04 - 33) - 4. INDOOR UNITS...

  • Page 127: Wall Mounted Type

    5-3. WALL MOUNTED TYPE „ MODELS: ASU7RLF1, ASU9RLF1, ASU12RLF1, and ASU15RLF1 „ - (04 - 34) - 4. INDOOR UNITS...
  • Page 128 „ MODELS: ASU7RLF, ASU9RLF, and ASU12RLF „ - (04 - 35) - 4. INDOOR UNITS...
  • Page 129 „ MODELS: ASU9RLS2, ASU12RLS2, and ASU15RLS2 „ - (04 - 36) - 4. INDOOR UNITS...
  • Page 130 „ MODELS: ASU18RLF and ASU24RLF „ - (04 - 37) - 4. INDOOR UNITS...

  • Page 131: Floor Type

    5-4. FLOOR TYPE „ MODELS: AGU9RLF, AGU12RLF, and AGU15RLF „ - (04 - 38) - 4. INDOOR UNITS...

  • Page 132: Air Velocity And Temperature Distributions

    6. AIR VELOCITY AND TEMPERATURE DISTRIBUTIONS 6-1. COMPACT CASSETTE TYPE Conditions Fan speed : High Operation mode : FAN „ MODEL: AUU7RLF and AUU9RLF „ z Air velocity distribution „ Top view Vertical airflow direction louver : Up (ft) Unit: ft/s (m/s) 1 (0.25)
  • Page 133 Note: Reference data Conditions Fan speed : High Operation mode: Heating z Air velocity distribution „ Vertical airflow direction louver: Downward (4Way) Side view Vertical airflow direction louver: Down (ft) Unit: ft/s (m/s) 7 (2.0) 7 (2.0) 5 (1.5) 5 (1.5) 3 (1.0) 3 (1.0) 2 (0.5)
  • Page 134 Conditions Fan speed : High Operation mode : FAN „ MODEL : AUU12RLF „ z Air velocity distribution „ Top view Vertical airflow direction louver : Up (ft.) Unit : ft./s (m/s) 1 (0.25) 2 (0.5) 3 (1.0) 7 (2.0) 7 (2.0) 3 (1.0) 1 (0.25)
  • Page 135 Note: Reference data Conditions Fan speed : High Operation mode : Heating Vertical airflow direction louver: z Air velocity distribution „ Downward (4Way) (ft.) Unit : ft./s (m/s) 5 (1.5) 5 (1.5) 3 (1.0) 3 (1.0) 2 (0.5) 2 (0.5) 1 (0.25) 1 (0.25) (ft.)
  • Page 136 Conditions Fan speed : High Operation mode : FAN „ MODEL : AUU18RLF „ z Air velocity distribution „ Top view Vertical airflow direction louver : Up (ft.) Unit : ft./s (m/s) 1 (0.25) 2 (0.5) 3 (1.0) 7 (2.0) 7 (2.0) 1 (0.25) 2 (0.5)
  • Page 137 Note: Reference data Conditions Fan speed : High Operation mode : Heating Vertical airflow direction louver: z Air velocity distribution „ Downward (4Way) (ft.) Unit : ft./s (m/s) 7 (2.0) 7 (2.0) 5 (1.5) 5 (1.5) 3 (1.0) 3 (1.0) 2 (0.5) 2 (0.5) 1 (0.25)

  • Page 138: Slim Duct Type With Auto Louver Grille Kit

    6-2. SLIM DUCT TYPE with Auto louver grille kit „ MODEL : ARU7RLF „ Conditions Fan speed : High Note: This data is measured installing the Auto louver grille kit(option). Operation mode : Fan Voltage : 230V z Air velocity distribution „...
  • Page 139 Reference Data Conditions Note: This data is measured installing the Auto louver grille kit(option). Fan speed : High Operation mode : Heating z Air velocity distribution „ Voltage : 230V (ft.) Unit : ft./s (m/s) Side view 7 (2) 3 (1) Vertical airflow 2 (0.5) direction louver : Down...
  • Page 140 Conditions Fan speed : High „ MODEL : ARU9RLF „ Operation mode : Fan Voltage : 230V Note: This data is measured installing the Auto louver grille kit(option). z Air velocity distribution „ (ft.) Unit : ft./s (m/s) Top view Vertical airflow 7 (2) direction louver : Up...
  • Page 141 Reference Data Conditions Note: This data is measured installing the Auto louver grille kit(option). Fan speed : High Operation mode : Heating z Air velocity distribution „ Voltage : 230V (ft.) Unit : ft./s (m/s) Side view 7 (2) 3 (1) Vertical airflow 2 (0.5) direction louver : Down...
  • Page 142 Conditions Fan speed : High „ MODELS : ARU12RLF „ Operation mode : Fan Voltage : 230V Note: This data is measured installing the Auto louver grille kit(option). z Air velocity distribution „ (ft.) Unit : ft./s (m/s) Top view Vertical airflow 7 (2) direction louver : Up...
  • Page 143 Reference Data Conditions Note: This data is measured installing the Auto louver grille kit(option). Fan speed : High Operation mode : Heating z Air velocity distribution „ Voltage : 230V (ft.) Unit : ft./s (m/s) Side view 7 (2) 3 (1) Vertical airflow direction louver : Down 2 (0.5)
  • Page 144 Conditions Fan speed : High „ MODELS : ARU18RLF „ Operation mode : Fan Voltage : 230V Note: This data is measured installing the Auto louver grille kit(option). z Air velocity distribution „ (ft.) Unit : ft./s (m/s) Top view Vertical airflow 7 (2) direction louver : Up...
  • Page 145 Reference Data Conditions Note: This data is measured installing the Auto louver grille kit(option). Fan speed : High Operation mode : Heating z Air velocity distribution „ Voltage : 230V (ft.) Unit : ft./s (m/s) Side view 7 (2) Vertical airflow direction louver : Down 3 (1) 2 (0.5)
  • Page 146 Conditions Fan speed : High „ MODEL : ARU24RLF „ Operation mode : Fan Note: This data is a measurement of Auto louver grille kit(option) by installing it. Voltage : 230V zAir velocity distribution „ (ft.) Unit : ft./s (m/s) Top view Vertical airflow 7 (2)
  • Page 147 Conditions Fan speed : High Note: This data is a measurement of Auto louver grille kit(option) by installing it. Operation mode : Heat Voltage : 230V zAir velocity distribution „ Reference Data (ft.) Unit : ft./s (m/s) Side view 7 (2) Vertical airflow direction louver : Down 3 (1)

  • Page 148: Wall Mounted Type

    6-3. WALL MOUNTED TYPE Conditions Fan speed : High „ MODEL : ASU7RLF1 „ Operation mode : Fan (ft.) Unit : ft./s (m/s) Top view 7 (2.0) Vertical airflow direction louver : Up 3 (1.0) 2 (0.5) Horizontal airflow direction louver : Center (ft.) (ft.)
  • Page 149 Conditions Fan speed : High „ MODEL : ASU9RLF1 „ Operation mode : Fan (ft.) Unit : ft./s (m/s) Top view 7 (2.0) Vertical airflow direction louver : Up 3 (1.0) 2 (0.5) Horizontal airflow direction louver : Center (ft.) (ft.) 3 (1.0) 7 (2.0)
  • Page 150 Conditions Fan speed : High „ MODEL : ASU12RLF1 „ Operation mode : Fan (ft.) Unit : ft./s (m/s) Top view 7 (2.0) Vertical airflow direction louver : Up 3 (1.0) 2 (0.5) Horizontal airflow direction louver : Center (ft.) (ft.) 3 (1.0) Top view...
  • Page 151 Conditions Fan speed : High „ MODEL : ASU15RLF1 „ Operation mode : Fan (ft.) Unit : ft./s (m/s) Top view Vertical airflow direction louver : Up 7 (2.0) 3 (1.0) 2 (0.5) Horizontal airflow direction louver : Center (ft.) (ft.) 7 (2.0) Top view...
  • Page 152 Conditions Fan speed : High „ MODELS : ASU7RLF „ Operation mode : Fan Unit : ft./s (m/s) (ft.) Top view Vertical airflow 3 (1.0) 2 (0.5) direction louver : Up 7 (2.0) Horizontal airflow direction louver : Center (ft.) (ft.) Top view 7 (2.0)
  • Page 153 Conditions Fan speed : High „ MODELS : ASU9RLF „ Operation mode : Fan Unit : ft./s (m/s) (ft.) Top view 3 (1.0) 7 (2.0) 2 (0.5) Vertical airflow direction louver : Up Horizontal airflow direction louver : Center (ft.) (ft.) 7 (2.0) 2 (0.5)
  • Page 154 Conditions Fan speed : High „ MODELS : ASU12RLF „ Operation mode : Fan Unit : ft./s (m/s) (ft.) Top view Vertical airflow 3 (1.0) 7 (2.0) 2 (0.5) direction louver : Up Horizontal airflow direction louver : Center (ft.) (ft.) 7 (2.0) Top view...
  • Page 155 Conditions Fan speed : High „ MODEL : ASU9RLS2 „ Operation mode : Fan Unit : ft./s (m/s) (ft.) Top view Vertical airflow direction louver : Up 3 (1) 2 (0.5) 1 (0.25) Horizontal airflow direction louver : Center (ft.) (ft.) Top view 2 (0.5)
  • Page 156 Conditions Fan speed : High „ MODEL : ASU12RLS2, ASU15RLS2 „ Operation mode : Fan Unit : ft./s (m/s) (ft.) Top view Vertical airflow direction louver : Up 3 (1) 2 (0.5) 1 (0.25) Horizontal airflow direction louver : Center (ft.) (ft.) Top view...
  • Page 157 Conditions Fan speed : High „ MODEL : ASU18RLF „ Operation mode : Fan (ft.) Unit : ft./s (m/s) Top view Vertical airflow direction louver : Up 7 (2.0) 3 (1.0) 2 (0.5) Horizontal airflow direction louver : Center (ft.) (ft.) Unit : ft./s (m/s) 2 (0.5)
  • Page 158 Conditions „ MODEL : ASU24RLF „ Fan speed : High Operation mode : Fan (ft.) Unit : ft./s (m/s) Top view Vertical airflow direction louver : Up 7 (2.0) 2 (0.5) 3 (1.0) Horizontal airflow direction louver : Center (ft.) (ft.) Unit : ft./s (m/s) 2 (0.5)

  • Page 159: Floor Type

    6-4. FLOOR TYPE „ MODELS : AGU9RLF, AGU12RLF, AGU15RLF „ Conditions Fan speed : High Unit : ft./s (m/s) (ft.) Operation mode : Fan Fan select : UPPER & LOWER 3(1.0) 2(0.5) Top view Vertical airflow direction louver : Up Horizontal airflow direction louver : Center UPPER...

  • Page 160: Fan Performance Curve

    7. FAN PERFORMANCE CURVE 7-1. SLIM DUCT TYPE „ MODEL: ARU7RLF „ 0.44 (110) SP mode09 0.40 (100) upper limit Hi (SP mode09) 0.36 (90) 0.32 (80) Quiet (SP mode09) 0.28 (70) SP mode09 0.24 (60) lower limit 0.20 (50) Normal SP Hi (Normal SP) upper limit...
  • Page 161 z Cooling „ Capacity (400) (500) (600) (700) (800) Airflow [CFM (m /h)] z Heating „ Capacity (400) (500) (600) (700) (800) Airflow [CFM (m /h)] - (04 - 68) - 4. INDOOR UNITS...
  • Page 162 „ MODEL: ARU9RLF „ 0.44 (110) 0.40 (100) SP mode09 upper limit Hi (SP mode09) 0.36 (90) 0.32 (80) Quiet (SP mode09) 0.28 (70) SP mode09 0.24 (60) lower limit 0.20 (50) Normal SP Hi (Normal SP) upper limit 0.16 (40) SP mode00 0.12 (30) upper limit...
  • Page 163 z Cooling „ Capacity (400) (500) (600) (700) (800) Airflow [CFM (m /h)] z Heating „ Capacity (400) (500) (600) (700) (800) Airflow [CFM (m /h)] - (04 - 70) - 4. INDOOR UNITS...
  • Page 164 „ MODEL: ARU12RLF „ 0.44 (110) Hi (SP mode09) SP mode09 0.40 (100) upper limit 0.36 (90) 0.32 (80) 0.28 (70) Quiet (SP mode09) 0.24 (60) SP mode09 lower limit Normal SP 0.20 (50) upper limit Hi (Normal SP) 0.16 (40) Quiet (Normal SP) 0.12 (30)
  • Page 165 z Cooling „ Capacity (500) (600) (700) (800) (900) Airflow [CFM (m /h)] z Heating „ Capacity (500) (600) (700) (800) (900) Airflow [CFM (m /h)] - (04 - 72) - 4. INDOOR UNITS...
  • Page 166 „ MODEL: ARU18RLF „ 0.44 (110) Hi (SP mode09) SP mode09 0.40 (100) upper limit 0.36 (90) Quiet 0.32 (80) (SP mode09) 0.28 (70) SP mode09 0.24 (60) lower limit Normal SP 0.20 (50) upper limit Quiet (Normal 0.16 (40) Hi (Normal SP) 0.12 (30) SP mode00...
  • Page 167 z Cooling „ Capacity (700) (800) (900) (1000) (1100) Airflow [CFM (m /h)] z Heating „ Capacity (700) (800) (900) (1000) (1100) Airflow [CFM (m /h)] - (04 - 74) - 4. INDOOR UNITS...
  • Page 168 „ MODEL: ARU24RLF „ 0.32 (80) SP mode05 0.28 (70) upper limit Hi (SP mode05) Quiet 0.24 (60) (SP mode05) Hi (Normal SP) 0.20 (50) Normal SP upper limit 0.16 (40) 0.12 (30) Quiet (Normal SP) 0.08 (20) SP mode00 SP mode05 upper limit lower limit...
  • Page 169 z Cooling „ Capacity (800) (900) (1000) (1100) (1200) (1300) (1400) (1500) (1600) Airflow [CFM (m /h)] z Heating „ Capacity (800) (900) (1000) (1100) (1200) (1300) (1400) (1500) (1600) Airflow [CFM (m /h)] - (04 - 76) - 4. INDOOR UNITS...
  • Page 170 8. AIRFLOW Airflow Airflow Operation Operation Type Model Type Model mode speed mode speed High High Cooling Cooling Quiet Quiet AUU7RLF ARU7RLF High High Heating Heating Quiet Quiet High High Cooling Cooling Quiet Quiet AUU9RLF ARU9RLF High High Heating Heating...
  • Page 171 Airflow Airflow Operation Operation Type Model Type Model mode speed mode speed High High Cooling Cooling Quiet Quiet ASU7RLF1 ASU9RLS2 High High Heating Heating Quiet Quiet High High Cooling Cooling Quiet Quiet ASU9RLF1 ASU12RLS2 High High Heating Heating Quiet Quiet High High Cooling...
  • Page 172 Airflow Operation Type Model mode speed High Cooling Quiet AGU9RLF High Heating Quiet High Cooling Quiet AGU12RLF Floor High Heating Quiet High Cooling Quiet AGU15RLF High Heating Quiet Conversion factor /h = 0.2778 l/s = 0.5886 CFM 3.6 m /h = 1 l/s 1.699 m /h = 1 CFM - (04 - 79) -...

  • Page 173: Noise Level Curve

    9. NOISE LEVEL CURVE 9-1. COMPACT CASSETTE TYPE „ MODEL: AUU7RLF „ z Heating z Cooling „ NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 NC-45 NC-45 HIGH NC-40 HIGH NC-40 NC-35 NC-35 NC-30 NC-30 NC-25 NC-25 QUIET QUIET NC-20...
  • Page 174 „ MODEL: AUU12RLF „ z Heating z Cooling „ N C -65 N C -65 N C -60 N C -60 N C -55 N C -55 N C -50 N C -50 H igh N C -45 N C -45 H igh N C -40 N C -40...

  • Page 175: Slim Duct Type

    9-2. SLIM DUCT TYPE „ MODEL: ARU7RLF „ z Heating z Cooling „ NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 NC-45 NC-45 NC-40 NC-40 NC-35 NC-35 HIGH HIGH NC-30 NC-30 NC-25 NC-25 QUIET QUIET NC-20 NC-20 NC-15 NC-15 1,000 2,000 4,000 8,000...
  • Page 176 „ MODEL: ARU12RLF „ z Heating z Cooling „ N C -65 N C -65 N C -60 N C -60 N C -55 N C -55 N C -50 N C -50 N C -45 N C -45 N C -40 N C -40 N C -35 N C -35...
  • Page 177 „ MODEL: ARU24RLF „ z Heating z Cooling „ N C -65 N C -65 N C -60 N C -60 N C -55 N C -55 N C -50 N C -50 N C -45 N C -45 N C -40 N C -40 H igh H igh...

  • Page 178: Wall Mounted Type

    9-3. WALL MOUNTED TYPE „ MODEL: ASU7RLF1 „ z Cooling „ z Heating „ N C -6 5 N C -6 5 N C -6 0 N C -6 0 N C -5 5 N C -5 5 N C -5 0 N C -5 0 N C -4 5 N C -4 5...
  • Page 179 „ MODEL: ASU12RLF1 „ z Cooling „ z Heating „ N C -6 5 N C -6 5 N C -6 0 N C -6 0 N C -5 5 N C -5 5 N C -5 0 N C -5 0 HIGH N C -4 5 N C -4 5...
  • Page 180 „ MODEL: ASU7RLF „ z Heating z Cooling „ N C -65 N C -65 N C -60 N C -60 N C -55 N C -55 N C -50 N C -50 N C -45 N C -45 H igh H igh N C -40 N C -40...
  • Page 181 „ MODEL: ASU12RLF „ z Heating z Cooling „ N C -65 N C -65 N C -60 N C -60 N C -55 N C -55 N C -50 N C -50 H igh N C -45 N C -45 H igh N C -40 N C -40...
  • Page 182 „ MODEL: ASU9RLS2 „ z Heating z Cooling „ N C -65 N C -65 N C -60 N C -60 N C -55 N C -55 N C -50 N C -50 N C -45 N C -45 N C -40 N C -40 H igh H igh...
  • Page 183 „ MODEL: ASU15RLS2 „ z Heating z Cooling „ N C -65 N C -65 N C -60 N C -60 N C -55 N C -55 N C -50 N C -50 N C -45 N C -45 H igh H igh N C -40 N C -40...
  • Page 184 „ MODEL: ASU18RLF „ z Heating z Cooling „ N C -65 N C -65 N C -60 N C -60 N C -55 N C -55 H igh N C -50 N C -50 H igh N C -45 N C -45 N C -40 N C -40...

  • Page 185: Floor Type

    9-4. FLOOR TYPE „ MODEL: AGU9RLF „ z Heating z Cooling „ NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 High NC-45 NC-45 High NC-40 NC-40 NC-35 NC-35 NC-30 NC-30 NC-25 NC-25 NC-20 NC-20 Quiet NC-15 NC-15 Quiet 1,000 2,000 4,000 8,000 1,000...
  • Page 186 „ MODEL: AGU15RLF „ z Heating z Cooling „ NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 High NC-45 NC-45 High NC-40 NC-40 NC-35 NC-35 NC-30 NC-30 NC-25 NC-25 NC-20 NC-20 Quiet NC-15 NC-15 Quiet 1,000 2,000 4,000 8,000 1,000 2,000 4,000 8,000...

  • Page 187: Sound Level Check Point

    9-5. SOUND LEVEL CHECK POINT „ COMPACT CASSETTE TYPE „ Microphone Microphone - (04 - 94) - 4. INDOOR UNITS...
  • Page 188 „ SLIM DUCT TYPE „ 79 in (2 m) 40 in (1 m) Measuring duct Measuring duct Microphone Microphone Center Center Side view Front view „ WALL MOUNTED TYPE „ Microphone Microphone 40 in (1 m) - (04 - 95) - 4.
  • Page 189 „ FLOOR TYPE „ Microphone Microphone Airflow Airflow 40 in (1 m) - (04 - 96) - 4. INDOOR UNITS...

  • Page 190: Safety Devices

    10. SAFETY DEVICES Fan motor Terminal Float Model and type PCB fuse thermal thermal fuse switch protector AUU7RLF OFF: 212 ±27 °F AUU9RLF (100 ±15 °C) ○ Compact cassette 250 V, 3.15 A ― ON: 203 ±18 °F AUU12RLF (95 ±10 °C)
  • Page 191 Hybrid Flex Inverter System 5. CONTROL SYSTEM DTR_BMU004E_04--CHAPTER05 2016.09.30...
  • Page 192 CONTENTS 5. CONTROL SYSTEM 05 - 01 1. CONTROL SYSTEM..............05 - 01 1-1. LINE UP OF CONTROLLERS ............... 05 - 02 1-2. CONTROL SYSTEM DESIGN ............... 05 - 03 1-3. SYSTEM CONFIGURATION EXAMPLES ..........05 - 05 1-4. CONTROL EQUIPMENT DESIGN LIMITATION ........05 - 06 2.

  • Page 193: Control System

    1. CONTROL SYSTEM 1-1. LINE UP OF CONTROLLERS „ FEATURES OF CONTROL SYSTEM „ Air conditioning central control Air conditioning individual control Central controller specially designs for centralized control. A range of remote controllers suitable for range of individual control situations, using various built-in timers. Central remote Wired remote controller...

  • Page 194: Control System Design

    1-2. CONTROL SYSTEM DESIGN „ ADVANCED INTEGRATED CONTROL SYSTEM „ Air conditioning Air conditioning System central control individual control Outdoor unit Branch box (Primary) Wired remote controller UTY-RNNUM Central remote controller UTY-DMMUM Simple remote controller UTY-RSNUM Branch box (Secondary 1) Wireless remote controller Transmission line UTY-LNHUM AR-RAH1U AR-RED1U...

  • Page 195: System Configuration Examples

    1-3. SYSTEM CONFIGURATION EXAMPLES „ INDIVIDUAL CONTROL „ Wired remote controller ● Wired, simple, and wireless remote controllers can Branch box Branch box Branch box be used jointly. (Primary) (Secondary 1) (Secondary 2) ● Two remote controllers can be connected with single indoor unit.
  • Page 196 „ INDOOR UNIT TYPE AND THE APPLICABLE CONTROL METHOD „ Indoor units Wall mounted ASU7RLF1 Type Model Compact ASU7RLF ASU9RLS2 Slim duct Floor ASU9RLF1 ASU18RLF ASU9RLF ASU12RLS2 cassette ASU12RLF1 ASU24RLF ASU12RLF ASU15RLS2 ASU15RLF1 Central remote UTY-DMMUM  *1  *1 ...

  • Page 197: Control Equipment Design Limitation

    1-4. CONTROL EQUIPMENT DESIGN LIMITATION Model The number that can be connected Central Central remote controller UTY-DMMUM 1/Multi system controller Wired remote controller UTY-RNNUM 2/Indoor unit Simple remote controller UTY-RSNUM 2/Indoor unit UTY-LNHUM Controller Individual AR-RAH1U controller Wireless remote controller AR-REG1U AR-RED1U IR receiver unit...

  • Page 198: Control Units

    2. CONTROL UNITS  Central remote controller „  Wired remote controller „  Simple remote controller „  Wireless remote controller „  IR receiver unit „ Central control Central remote controller Individual control Wired Simple Wireless remote remote controller remote controller controller IR receiver unit...

  • Page 199: Central Remote Controller

    2-1. CENTRAL REMOTE CONTROLLER „ MODEL: UTY - DMMUM „ ● Large and full-dot liquid crystal screen ● Screen with backlight can be seen even in the dark ● Wide and large keys easy to press, user-intuitive arrow key „ FEATURES „...
  • Page 200 „ MAIN FUNCTIONS „  Outdoor unit low noise operation „ ● Users can choose from 4 low noise levels, depending on the conditioning installation environment. load factor Heat load 100% Down Capacity 58dB Operating sound (time) Low noise operation ...
  • Page 201 „ FUNCTIONS „ 1 Display panel (with backlight) 6 Screen switch button (Right) 2 Screen switch button (Left) 7 Power indicator 3 Menu button 8 On/Off button 4 Cancel button 9 Enter button 5 Cursor button „ ELECTRICAL WIRING „ Example: Wiring diagram when 3 units of branch boxes are connected Branch box Branch box...
  • Page 202 „ INSTALLATION „ 1) Remove the insulation of the remote controller cable. 55 (2-3/16) 45 (1-3/4) 30 (1-3/16) Unit : mm (in) 8 (5/16) 8 (5/16) 1. 12V (Red) (5/16) 2. Signal (White) 3. COM (Black) 2) Insert the flat-blade screwdriver and remove the front case and rear case by twisting it slightly.
  • Page 203 5) Connect the cable to the terminals on the front case. Fix the cable together with the sheath with the binder. Cut off the excess binder. Tightening torque Terminal screw 0.8 to 1.2N • m (7 to 10 lbf • in) Binder 1.
  • Page 204 „ DIMENSIONS „ Unit : in. (mm) 1-3/16 1-5/16 (30) (33.5) 13/16 (21.3) 4-3/4 (120) (23) 3/8 (9) 3/16 (4.5) Front View Side View Rear View „ PACKING LIST „ Name and shape Quantity Application For connecting the remote controller Remote controller cable For installing the remote controller Screw...

  • Page 205: Wired Remote Controller

    2-2. WIRED REMOTE CONTROLLER „ MODEL : UTY - RNNUM „ ● Various timer setup (ON / OFF / WEEKLY) are possible. „ FEATURES „ ● Equipped with weekly timer as standard function. (Start / Stop function is twice per day for a week) ●...
  • Page 206 „ FUNCTIONS „ START/STOP button Pressed to start and stop operation. SET TEMP. button Selects the setting temperature. Display MODE button Selects the operating mode ( AUTO , COOL , DRY , , HEAT FAN button , MED Selects the fan speed ( AUTO , HIGH , QUIET Vertical airflow direction and swing button...
  • Page 207 „ SYSTEM DIAGRAM „  2 remote controllers  1 remote controller „ Indoor unit Indoor unit A , B , C : Remote controller cable. < < 1640ft (500m) ; B+C 1640ft (500m) Secon- Primary dary Remote controller Remote controllers „...
  • Page 208 „ INSTALLATION „  Connection Pattern „ Note: Connection pattern is different according to type of Indoor unit. Indoor unit types Connection Pattern Compact Cassette type Pattern A Slim Duct type ASU7RLF1, ASU9RLF1, ASU12RLF1, ASU15RLF1 ASU7RLF, ASU9RLF, ASU12RLF Pattern B Wall Mounted type ASU9RLS2, ASU12RLS2, ASU15RLS2 ASU18RLF, ASU24RLF...
  • Page 209  Pattern C „ 1) Modify the remote controller cable as per below methods. ● Use a tool to cut off the terminal on the end of the remote controller cable and then remove the insulation from the cut end of the cable as shown in Fig. ●...
  • Page 210 „ PACKING LIST „ Name and shape Quantity Application Remote controller cable For connecting the remote controller [33ft(10m)] For installing the remote controller Screw (M4 x 16mm) For remote controller and remote controller cable Binder binding For connecting the remote controller cable to the Wall Connecting cable *1 mounted type indoor unit For installing the remote controller cable to the...

  • Page 211: Simple Remote Controller

    2-3. SIMPLE REMOTE CONTROLLER „ MODEL : UTY - RSNUM „ „ FEATURES „ ● Easy operation. ● Built-in background light function. ● Easy installation with a slim shape with no bulge in the back. ● Error history.(Last 16 error codes can be accessed.) ●...
  • Page 212 „ FUNCTIONS „ START/STOP button Pressed to start and stop operation. Display background light Lights during operation. Operation lamp Lights during operation. FAN button Selects the fan speed ( AUTO , HIGH , MED , QUIET SET TEMP. button Selects the setting temperature. MODE button Selects the operating mode (AUTO , COOL...
  • Page 213 „ ELECTRICAL WIRING „  2 remote controllers  1 remote controller „ Indoor unit Indoor unit REMOTE REMOTE CONTROLLER CONTROLLER 1 2 3 1 2 3 1 (RED) : 12V 1 2 3 1 2 3 1 2 3 2 (WHITE) : Signal 3 (BLACK) : COM Secondary...
  • Page 214 „ INSTALLATION „  Connection Pattern „ Note: Connection pattern is different according to type of Indoor unit. Indoor unit types Connection Pattern Compact Cassette type Pattern A Slim Duct type ASU7RLF1, ASU9RLF1, ASU12RLF1, ASU15RLF1 ASU7RLF, ASU9RLF, ASU12RLF Pattern B Wall Mounted type ASU9RLS2, ASU12RLS2, ASU15RLS2 ASU18RLF, ASU24RLF...
  • Page 215  Pattern C „ 1) Modify the remote controller cable as per below methods. ● Use a tool to cut off the terminal on the end of the remote controller cable and then remove the insulation from the cut end of the cable as shown in Fig. ●...
  • Page 216 „ PACKING LIST „ Name and shape Quantity Application For connecting the remote controller Remote controller cable [33ft(10m)] Screw For installing the remote controller (M4 x 16mm) For remote controller and remote controller cable Binder binding For connecting the remote controller cable to the Wall Connecting cable *1 mounted type indoor unit Screw *1...

  • Page 217: Wireless Remote Controller

    2-4. WIRELESS REMOTE CONTROLLER „ MODEL : UTY - LNHUM / AR-RAH1U „ „ FEATURES „ ● Four kinds of timer setup (ON / OFF / PROGRAM / SLEEP) are possible. ● Can be used jointly with wired remote controllers . ●...
  • Page 218 „ FUNCTIONS (UTY-LNHUM) „ MODE button Selects the operating mode (AUTO, COOL, DRY, FAN, HEAT). /Start / end R.C. custom code change. (Max 4 types) MIN.HEAT button Set temp. button ( ▲ / ▼ ) Sets the indoor temp./ Sets R.C. custom code. ECONOMY button SLEEP button Pressed to select sleep timer.
  • Page 219 „ FUNCTIONS (AR-RAH1U) „ MODE button Selects the operating mode (AUTO, COOL, DRY, FAN, HEAT). /Start / end R.C. custom code change. (Max 4 types) MIN.HEAT button Set temp. button ( ▲ / ▼ ) Sets the indoor temp./ Sets R.C. custom code. ECONOMY button SLEEP button Pressed to select sleep timer.
  • Page 220 „ SYSTEM DIAGRAM „ ● Control signal might not be recognized in following cases: (i) A curtain or a wall, etc. exists between transmitter and receiver. (ii) There is an instant-start type (inverter type, etc.) fluorescent lamp Signal receiver Signal transmitter in the room.
  • Page 221 „ PACKING LIST „ Name and shape Quantity Application Installation manual Operating manual Use as remote controller holder Remote controller holder For remote controller holder installation Tapping screw Battery For remote controller [ 1.5V (R03 / AAA) ] „ SPECIFICATIONS „...
  • Page 222 „ MODEL: AR-RED1U „ „ FEATURES „ ¾ 5 Mode timer setup „ (ON / OFF / WEEKLY / PROGRAM / SLEEP) are possible. ¾ Easy operation. „ ¾ Easy to change custom code (4 patterns) by button operation. „ ...
  • Page 223 „ FUNCTIONS (AR-RED1U) „ SENSOR button Signal Transmitter MODE button FAN button MIN. HEAT button ECONOMY button SWING button TEMP. button *1) OUTDOOR UNIT SET button LOW NOISE button POWERFUL button WEEKLY button TIMER SETTING button START/STOP SEND button ON/OFF button button SLEEP button SELECT button...
  • Page 224 „ SYSTEM DIAGRAM „ ● Control signal might not be recognized in following cases: (i) A curtain or a wall, etc. exists between transmitter and receiver. (ii) There is an instant-start type (inverter type, etc.) fluorescent lamp Signal transmitter Signal receiver in the room.
  • Page 225 „ PACKING LIST „ Name and shape Quantity Application Use as remote controller holder Remote controller holder For remote controller holder installation Tapping screw Battery For remote controller [ 1.5V (LR03 / AAA) ] „ SPECIFICATIONS „ Dimensions [H x W x D]: in.(mm) 8-1/16 (205) ×...
  • Page 226 „ MODEL: AR-REG1U „ „ FEATURES „ ¾ 4 mode timer setup available (ON / OFF / PROGRAM / SLEEP). ¾ Easy operation. ¾ Easy to change custom code (max. 4 custom codes) by button operation. REG1U  Built-in timers „...
  • Page 227 „ FUNCTIONS (AR-REG1U) „ Signal transmitter MODE button FAN button MIN. HEAT button ECONOMY button SWING button TEMP. button SET button POWERFUL button TIMER ON button REG1U Start/Stop button TIMER OFF button REG1U TIMER SELECT button RESET button °C / °F switching button TIMER SLEEP button CLOCK ADJUST button TIMER CANCEL button...
  • Page 228 „ SYSTEM DIAGRAM „ ● Control signal might not be recognized in following cases: (i) A curtain or a wall, etc. exists between transmitter and receiver. (ii) There is an instant-start type (inverter type, etc.) fluorescent lamp Signal receiver window Signal transmitter in the room.
  • Page 229 „ PACKING LIST „ Name and shape Quantity Application Use as remote controller holder Remote controller holder For remote controller holder installation Tapping screw Battery For remote controller [ 1.5V (LR03 / AAA) ] „ SPECIFICATIONS „ Dimensions [H x W x D]: in.(mm) 8-1/16 (205) ×...

  • Page 230: Ir Receiver Unit

    2-5. IR RECEIVER UNIT „ MODEL : UTY - LRHUM „ „ FEATURES „ Duct type indoor unit can be controlled with wireless remote controller if the IR receiver unit is used. „ FUNCTIONS „ Wireless remote controller IR Receiver OPERATION LAMP TIMER LAMP ECONOMY LAMP...
  • Page 231 „ ELECTRICAL WIRING „ Connected to CN13 of PCB CN13 Connection cable A 2-3/8in. x 4-3/4in. [ L = 16ft. ( 5m )] ...Standard accessory Connection cable B ( 60mm x 120mm ) Connection cable C [ L = 7-7/8in. ( 0.2m )] hole [ L = 33ft.
  • Page 232 „ PACKING LIST „ Name and shape Quantity Application Installation manual Operating manual Cover For covering receiver unit Insulation For protecting PCB from dust Connection cable A For connecting PCB of indoor unit to receiver unit [16ft. (5m)] Connection cable B For connecting PCB of indoor unit to receiver unit [7-7/8in.

  • Page 233: Remote Sensor Unit

    2-6. REMOTE SENSOR UNIT „ MODEL : UTY - XSZX „ „ FEATURES „ New amenity space can be offered by installing the Remote sensor. „ ELECTRICAL WIRING „ ● Remove the screws from the remote sensor, and remove the cover. ●...
  • Page 234  When the cable is buried in the wall „ ● Remove the material (thinner than the surrounding material) in the wiring hole in the remote sensor using a pair of cutters. ● Drill a hole in the wall for the cable. ●...

  • Page 235: Group Control Method

    2-7. GROUP CONTROL METHOD „ REMOTE CONTROLLER GROUP „ Wired, Simple, and Wireless remote controllers can be used jointly in the following combinations. Example of combination for "Remote controller group" - (05 - 43) - 5. CONTROL SYSTEM...

  • Page 236: Comparison Table Of Controllers

    2-8. COMPARISON TABLE OF CONTROLLERS „ LIST OF CONTROLLER FUNCTION „ Central remote Wired remote Simple remote Wireless remote Item controller controller controller controller UTY-LNHUM AR-RAH1U Model UTY-DMMUM UTY-RNNUM UTY-RSNUM AR-RED1U AR-REG1U Max. controllable indoor units ● ● ● ● Start/Stop ●...
  • Page 237 Hybrid Flex Inverter System 6. SYSTEM DESIGN DTR_BMU004E_06--CHAPTER06 2016.09.30...
  • Page 238 CONTENTS 6. SYSTEM DESIGN 06 - 01 1. SYSTEM DESIGN ................. 06 - 01 1-1. SYSTEM OUTLINE ................06 - 02 1-2. REFRIGERANT SYSTEM ..............06 - 07 1-3. WIRING SYSTEM ................... 06 - 08 1-4. MOUNTING POSITION ................06 - 10 2.
  • Page 239 CONTENTS 6. SYSTEM DESIGN 06 - 87 5-8. WIRED REMOTE CONTROLLER ............06 - 90 5-9. SIMPLE REMOTE CONTROLLER ............06 - 93 5-10. DUCT STATIC PRESSURE SETTING ........... 06 - 94 5-11. BRANCH BOX ..................06 - 95 6. CHECK RUN .................. 06 - 95 6-1.

  • Page 240: System Outline

    1. SYSTEM DESIGN 1-1. SYSTEM OUTLINE Branch box 3 (Secondary)  Indoor units  Circuit breaker (over current) Earth leakage breaker Power supply Branch box 2 (Secondary)  Circuit breaker (over current) Earth leakage breaker Power supply Branch box 1 ...

  • Page 241: Refrigerant System

    1-2. REFRIGERANT SYSTEM „ CONNECTABLE UNIT WITHIN 1 REFRIGERANT SYSTEM „ Unit Quantity Remarks Outdoor unit 1 unit Indoor unit 2 to max. 8 units Connectable indoor unit capacity: 80 % to 130 % Branch box 1 to max. 3 units One branch box of primary type is always necessary z Caution „...
  • Page 242 „ EXAMPLE OF REFRIGERANT SYSTEM „ z Example 1 (OK) „ Branch box 1 (Primary type) Outdoor unit Capacity ratio Indoor unit 2 Indoor unit 1 88 % Connectable indoor Total Capacity unit capacity (Btu/h) Model capacity Judgement (Btu/h) (Btu/h) Min.
  • Page 243 z Example 3 (OK) „ Branch box 2 Branch box 1 Outdoor unit (Secondary type) (Primary type) Indoor unit 3 Indoor unit 4 Indoor unit 1 Indoor unit 2 Indoor unit 5 Capacity ratio 119 % Total Connectable indoor Capacity Model capacity unit capacity (Btu/h)
  • Page 244 z Example 5 (Prohibited) „ Branch box 1 (Primary type) Outdoor unit Indoor unit 1 Total Connectable indoor Capacity Model capacity unit capacity (Btu/h) Judgement (Btu/h) (Btu/h) Min. Max. Outdoor unit AOU48 48,000 48,000  80 %  130 % Prohibited →...
  • Page 245 z Example 7 (Prohibited) „ Branch box 3 Branch box 2 Branch box 1 Outdoor unit (Secondary type) (Secondary type) (Primary type) Indoor unit 1 Indoor unit 2 Indoor unit 3 Indoor unit 4 Indoor unit 5 Indoor unit 6 Indoor unit 7 Capacity ratio 138 %...

  • Page 246: Wiring System

    1-3. WIRING SYSTEM „ MAXIMUM WIRING LENGTH „ Maximum wiring length Transmission line ft (m) Between outdoor unit and branch box 246 (75) Between branch box and indoor unit 246 (75) Between branch box and branch box 246 (75) Between branch box and central remote controller 1,640 (500) Between indoor unit and wired R.C.

  • Page 247: Mounting Position

    1-4. MOUNTING POSITION „ OUTDOOR UNIT „ For the air conditioner to operate satisfactorily, install it as outlined in installation manual. z Outdoor unit mounting position „ ● A position where satisfies the mounting space described in “3-3. Installation space". ●...
  • Page 248 „ INDOOR UNIT „ For the air conditioner to operate satisfactorily, install it as outlined in installation manual. z Indoor unit mounting position „ ● Decide the mounting position with the customer ● Install the unit level on a strong wall, floor, ceiling which is not subject to vibration. ●...

  • Page 249: Piping Design

    2. PIPING DESIGN 2-1. IMPORTANT ITEMS WHEN USING NEW REFRIGERANT (R410A) R410A operates at higher pressure and has less solubility with mineral oil than traditional R22 refrigerant. Therefore, the lubricant and a part of pipe material are different. Some special tools are necessary. „...
  • Page 250 „ WORK FLOW (EXAMPLE) „ Preparations Prepare schedule of works ● Always check the refrigerant to be used. Refrigerant check ● Always use the specified refrigerant. ● Prepare materials/tools matched to the refrigerant. Operation chart preparation Start of work Indoor unit installation ●...

  • Page 251: Piping Limitations

    2-2. PIPING LIMITATIONS „ LIMITATIONS „ Limitation Diagram ft (m) Total pipe length 377 (115) or less Total Between outdoor unit and the farthest indoor unit 230 (70) or less a + b + c + m Between outdoor unit and branch boxes 180 (55) or less a + b + c + d + e Total...
  • Page 252 „ CAUTION „ Keep the "piping limitations" for correct operation. z Allowable height difference: „ If the height difference between the indoor unit and outdoor unit is larger than the allowable value: ¾ The pressure loss will be larger → Insufficient cooling and heating „...

  • Page 253: Pipe Size

    2-3. PIPE SIZE „ PIPE DIAMETER, RECOMMENDED MATERIAL AND WALL THICKNESS „ Nominal Diameter (in) Outside Diameter (mm) 6.35 9.52 12.70 15.88 19.05 Material JIS H3300 C1220T-O or equivalent *1 Wall Thickness *2 (mm) *1: Allowable tensile stress ≥ 33 (N/mm *2: Endurance pressure of the pipe must be 609 psi (4.2 MPa).
  • Page 254 z Pipe size table "A" „ (Between outdoor unit and first separation tube) Outside diameter (in [mm]) Liquid pipe Gas pipe 3/8 [9.52] 5/8 [15.88] z Pipe size table "B" „ (Between first separation tube and second separation tube) Outside diameter (in [mm]) Liquid pipe Gas pipe 3/8 [9.52]...

  • Page 255: Selection Of Pipe Heat Insulating Material

    2-4. SELECTION OF PIPE HEAT INSULATING MATERIAL ● Always insulate the refrigerant pipe to prevent condensation and water droplets by the refrigerant pipe. ● Decide the thickness of the heat insulating material by referring to the recommended minimum thickness in Table 1. (For installation condition T = 90 °FDB (32 °CDB), humidity ≤ 70 %, humidity ≤75 %, humidity ≤...

  • Page 256: Additional Charge Calculation

    2-5. ADDITIONAL CHARGE CALCULATION ● The outdoor unit is charged refrigerant at the factory. ● Additional refrigerant required to be charged on site depending on pipe length. ● The additional refrigerant charge amount is calculated according to the following formula. ●...

  • Page 257: Example Of Piping Design

    2-6. EXAMPLE OF PIPING DESIGN „ EXAMPLE 1 „ Outdoor unit Separation Separation tube tube Branch box Branch box Branch box 7,000 Btu) (7,000 Btu) (7,000 Btu) (7,000 Btu) (7,000 Btu) (7,000 Btu) (7,000 Btu) (7,000 Btu) Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit...
  • Page 258 z Limitation check „ Example Limitation Diagram Judge ft (m) ft (m) Total pipe length Total Less than 377 (115) (80) Between outdoor unit and the farthest indoor unit a + b + c + m Less than 230 (70) (35) Between outdoor unit and branch boxes a + b + c + d + e...
  • Page 259 „ EXAMPLE 2 „ Outdoor unit Separation tube Branch box Branch box (18,000 Btu) (7,000 Btu) (7,000 Btu) (9,000 Btu) (7,000 Btu) (7,000 Btu) Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit z System configuration „ (Indoor units) Total capacity (Btu)
  • Page 260 z Limitation check „ Example Limitation Diagram Judge ft (m) ft (m) Total pipe length Total Less than 377 (115) (72) Between outdoor unit and the farthest indoor unit a + c + k Less than 230 (70) (37) Between outdoor unit and branch boxes a + c + d Less than 180 (55) (42)
  • Page 261 „ EXAMPLE 3 „ Outdoor unit Branch box (24,000 Btu) (18,000 Btu) (7,000 Btu) Indoor unit Indoor unit Indoor unit z System configuration „ (Indoor units) Total capacity (Btu) Model name ASU24 ASU18 ASU7 49000 Capacity (Btu) 24000 18000 7000 z Capacity ratio „...
  • Page 262 z Limitation check „ Example Limitation Diagram Judge ft (m) ft (m) Total pipe length Total Less than 377 (115) (84) Between outdoor unit and the farthest indoor unit c + h Less than 230 (70) (60) Between outdoor unit and branch box Less than 180 (55) (45) Total...
  • Page 263 „ EXAMPLE 4 „ Outdoor unit Separation Separation tube tube Branch box Branch box Branch box (18,000 Btu) (18,000 Btu) (24,000 Btu) Indoor unit Indoor unit Indoor unit z System configuration „ (Indoor units) Total capacity (Btu) Model name ASU18 ASU18 ASU24 60000...
  • Page 264 z Limitation check „ Example Limitation Diagram Judge ft (m) ft (m) Total pipe length Total Less than 377 (115) (89) Between outdoor unit and the farthest indoor unit a + b + c + l Less than 230 (70) (55) Between outdoor unit and branch boxes a + b + c + d + e...

  • Page 265: Installation

    3. INSTALLATION 3-1. OUTDOOR UNIT „ OPENING A KNOCKOUT HOLE „ CAUTION ● Be careful not to deform or scratch the panel while opening the knock out holes. ● To protect the piping insulation after opening a knock out hole, remove any burrs from the edge of the hole.
  • Page 266 „ PIPE CONNECTION „ CAUTION ● Be sure to install the pipe against the port on the indoor unit and the outdoor unit correctly. If the centering is improper, the flare nut cannot be tightened smoothly. If the flare nut is forced to turn, the threads will be damaged.
  • Page 267 z Handling precautions for the valves „ ● Mounted part of Blank cap is sealed for protection. ● Fasten blank cap tightly after opening valves. Blank cap Tightening torque [in (mm)] [lbf· ft (N·m)] 1/4 (6.35) 14.8 to 18.4 (20 to 25) 3/8 (9.52) 14.8 to 18.4 (20 to 25) 1/2 (12.70)

  • Page 268: Separation Tube

    3-2. SEPARATION TUBE „ PIPE CONNECTION „ CAUTION ● Be sure to apply the pipe against the port on the indoor unit correctly. If the centering is improper, the flare nut cannot be tighten smoothly. If the flare nut is forced to turn, the threads will be damaged.
  • Page 269 z Straight pipe length „ to branch box to branch box ● When connecting the main piping, do not bend it near the connection section. ● If the main pipe must be bent due to unavoidable circumstances, ensure that the linear section is 5-7/8 in (150 mm) or more.

  • Page 270: Branch Box

    3-3. BRANCH BOX „ INSTALLATION THE UNIT „ WARNING ● Perform installation in a location which can properly withstand the weight of the unit. Failure to install in a robust location or a faulty installment may cause the equipment to fall, a water leakage, electric shock or fire.
  • Page 271 (5) Remove the control box as shown in the figure, (6) Attach the control box to the main unit as and then change the positioning to the opposite shown in the figure. side. The lead wire Remove the control runs here box by lifting up and To the opposite side out through slots...
  • Page 272 z Fix the unit (When hanging from the ceiling) „ CAUTION ● Do not hang from the ceiling when performing a vertical installation. (1) Secure the hangers (accessories) with the screws [2 pieces, Ø 3/16 × 3/8 in (4 × 10 mm), accessories].
  • Page 273 z Fix the unit (For wall installation) „ <Horizontal installation> <Vertical installation> (1) Secure the hangers (accessories) with the (1) Secure the hangers (accessories) with the screws [2 pieces, Ø 3/16 × 3/8 in (4 × 10 mm), screws [2 pieces, Ø 3/16 × 3/8 in (4 × 10 mm), accessories].
  • Page 274 „ PIPE CONNECTION „ WARNING ● Be sure to perform flare connection. It causes a malfunction and a fire of this unit when connecting the pipes other than flare connection (brazing etc.). (1) Detach the caps and plugs from the pipes. CAUTION ●...
  • Page 275 „ PIPING INSULATION „ (1) Install the coupler heat insulation (large and small) and insulation (long and short) on each pipe as shown in the figures below. (2) Attach the butting surface with no gap to eliminate any gap between the insulations. (3) During the pipe insulation work, prevent air from getting inside the insulation with an adhesive tape (locally purchased).

  • Page 276: Wiring Design

    4. WIRING DESIGN 4-1. ELECTRICAL WIRING „ PRECAUTION FOR ELECTRICAL WIRING „ Regulation on wire diameter and selecting circuit breaker size differ from locality. Install in accordance with local rules and regulations. WARNING ● Do not turn on the power until all installation work is complete. ●...
  • Page 277 „ WIRING SYSTEM LAYOUT „ For installation of the outdoor unit, branch boxes, and indoor units, follow the instructions in the installation manual for each unit. Branch box 3 (Secondary)  Indoor units  Circuit breaker (over current) Earth leakage breaker Power supply...

  • Page 278: Power Supply Cable Wiring

    4-2. POWER SUPPLY CABLE WIRING „ POWER SUPPLY CABLE SPECIFICATIONS „ Use a separate power supply for the outdoor unit and branch box. Notes: *1: Selected sample (Select an appropriate diameter of cable and the kind of cable according to each country and a local rule.
  • Page 279 „ POWER SUPPLY CABLE WIRING „ Caution ● Except for EMERGENCY, never turn off main as well as sub breaker of the indoor units during operation. It will cause compressor failure as well as water leakage. ● First, stop the indoor unit by operating the control unit or external input device and then cut the breaker.
  • Page 280 z Example 3 (Branch box & indoor unit) „ Disconnect SW Indoor units Branch box Disconnect SW Branch box Disconnect SW Junction box Branch box Circuit breaker (over current) Earth leakage breaker Branch box - Indoor unit Power supply 1ø 208/230 V 60 Hz - (06 - 41) - 6.
  • Page 281 „ WIRING RULES „ z Example 1 (Prohibited) „ Power cable Branch box Power cable Do not connect the power cable directly to indoor units. Always supply power to indoor units from a branch box. - (06 - 42) - 6.

  • Page 282: Transmission Line

    4-3. TRANSMISSION LINE „ TRANSMISSION WIRING SPECIFICATIONS „ Cable size Remarks ● Between Outdoor unit to Branch box 208/230 V 60 Hz ● Between Branch box to Branch box 14 AWG 3-wire + ground ● Between Branch box to Indoor unit Sheathed PVC cable ●...
  • Page 283 „ WIRING METHOD „ Practical transmission wiring method is shown below. Each terminal has to be connected the following rules. Example 1 Single-phase Power supply cable 208/230 V 60 Hz Max. 26.5 A Breaker1 Breaker1: Earth leakage breaker Breaker2: Circuit breaker (over current) Breaker2 Outdoor unit Central remote...
  • Page 284 „ WIRING RULES „ z Example 1 (Prohibited) „ Transmission line Branch box (secondary) Do not connect outdoor unit to secondary type branch box. Always connect primary type branch box to outdoor unit. z Example 2 (Prohibited) „ Transmission line Branch box (primary) Branch box (primary) Do not interconnect primary type branch boxes.

  • Page 285: Controller Cable Wiring

    4-4. CONTROLLER CABLE WIRING „ WIRING SPECIFICATIONS „ Model type Connection to Wire Cable size Specification Central remote Remote controller Branch box 22 AWG controller cable Wired remote Sheathed PVC cable Polar Indoor unit controller 3-core Remote controller 22 AWG cable Simple remote Indoor unit...
  • Page 286 „ WIRING RULES „ z Example 1 (Good) „ Branch box (primary) Branch box 2 (secondary) Branch box 3 (secondary) Central remote controller line Central remote controller One Central remote controller can be connected any branch box in 1 refrigerant system. z Example 2 (Prohibited) „...
  • Page 287 z Example 3 (Prohibited) „ Branch box (primary) Central remote controller line Central remote controller Central remote controller line Do not connect central remote controller to outdoor unit or indoor unit. Always connect branch box to central remote controller. z Example 4 (Prohibited) „...
  • Page 288 z Example 5 (Prohibited) „ Branch box (primary) Do not connect a wired remote controller or simple remote controller to branch box. Connect them to each indoor unit. z Example 6 (Prohibited) „ Branch box 1 (primary) Branch box 2 (secondary) Wired Simple remote...

  • Page 289: Function Settings

    5. FUNCTION SETTINGS 5-1. OUTDOOR UNIT „ SWITCH POSITION „ LED lamp 7 Segment LED Lamp LED981 LED982 POWER ERROR / MODE LED961 LED962 MODE / SELECT ENTER CHECK EXIT SW931 SW932 SW933 SW934 Outdoor unit printed circuit board Push button ●...
  • Page 290 „ FUNCTION SETTING „ 1) After verifying that the system is normally, press the MODE/EXIT button (SW931) once. LED961 LED962 LED961 LED962 2) Press the SELECT button (SW932), and display “F2” on the LED962. (Monitoring mode) (Setting mode) (Function mode) (Error history mode) LED961 LED962...
  • Page 291 5) Again, referring to the Settings List shown below, press the SELECT button (SW932), and display the code number of the function you want to set on the LED962. Example: To select the emergency stop function LED961 LED962 LED961 LED962 Next, press the ENTER button (SW933), and confirm the selection of the function you want to set.
  • Page 292 „ SETTINGS LIST „ LED961 LED962 Factory Setting Mode Setting Function Remarks CODE No. CODE No. setting Use it when becoming cooling capacity Standard shortage. Cooling High power mode 1 Use High power mode 2 when becoming capacity shift cooling capacity shortage in High power High power mode 2 mode 1.

  • Page 293: Indoor Unit (Setting By Jumper Wire)

    5-2. INDOOR UNIT (setting by jumper wire) Note: This function is for slim duct type only. „ SWITCH POSITION „ z Slim duct type „ „ JUMPER WIRE SETTING „ z Drainage function setting (JM1) „ (u...Factory setting) Drainage function Connect Enable Disconnect...

  • Page 294: Indoor Unit (Setting By Wireless Remote Controller)

    5-3. INDOOR UNIT (setting by wireless remote controller) ● The function settings of the control of the indoor unit can be changed by this procedure „ according to the installation conditions. Incorrect settings can cause the indoor unit malfunction. ● After the power is turned on, perform the “FUNCTION SETTING” according to the „...

  • Page 295: Uty-Lnhum/Ar-Rah1U

    5-3-1. UTY-LNHUM/AR-RAH1U „ SWITCHING SELECTION OF FUNCTION SETTING MODE „ (2) Press and hold the “FAN” and the “ SET TEMP. ”　buttons. While holding these 2 buttons, press the "RESET" button. SET TEMP. ( ) RESET Function setting mode display „...
  • Page 296 „ BUTTON NAME AND FUNCTION „ ● During address setting mode, indoor unit reject the any operation command from remote controller. Function number Refer to FUNCTION DETAILS MODE button Setting number - Start the function setting mode Refer to FUNCTION DETAILS - Changes the display digits FAN button START/STOP button...
  • Page 297 „ FUNCTION SETTING „ (5) Press the “MODE” button to access the (6) Press the “ ” or the “ ” buttons to select function setting mode. the function number. Each time the “MODE” button is pressed, it switches between the one's place and the ten's place positions.
  • Page 298 „ COMPLETION OF FUNCTION SETTING MODE „ (11) Press the “RESET” button. RESET After pressing the RESET button, please set the custom code again if b,c,d setting. „ SETTING UP EACH INDOOR UNIT „ Repeat steps (1) through to (11). Steps (1) through to (4) and (11) only need to carried out if the custom code is different to the factory setting of “A”.
  • Page 299 „ REMOTE CONTROLLER CUSTOM CODE SETTING „ In function setting, please change to the setting that custom code setting of Wireless remote controller is the same as indoor unit according to the following content when you change custom code setting of indoor unit. 1.

  • Page 300: Ar-Red1U

    5-3-2. AR-RED1U „ SWITCHING SELECTION OF FUNCTION SETTING MODE „ " buttons. While holding these 2 (2) Press and hold the "POWERFUL" and "SET TEMP. buttons, press the "RESET" button. POWERFUL SET TEMP. ( RESET Function setting mode display - (06 - 61) - 6.
  • Page 301 „ BUTTON NAME AND FUNCTION „ ● During function setting mode, indoor unit reject the any operation command from remote controller. Function number Refer to FUNCTION DETAILS Setting number Refer to FUNCTION DETAILS MIN HEAT button POWERFUL button Changes the display digits Switches between the setting number (bottom line) and function number (top line)
  • Page 302 „ FUNCTION SETTING „ (3) Press the " " or the " " buttons to select the function number. Each time the "MIN HEAT" button is pressed, it switehes between the one's place and the ten's place positions. Change digit Change digit (4) Press the "POWERFUL"...
  • Page 303 „ COMPLETION OF FUNCTION SETTING MODE „ (8) Press the "RESET" button. RESET „ SETTING UP EACH INDOOR UNIT „ Repeat steps (1) through to (8). Steps (1) through to (2) and (8) only need to carried out if the custom code is different to the factory setting of “A”.
  • Page 304 „ REMOTE CONTROLLER CUSTOM CODE SETTING „ In function setting, please change to the setting that custom code setting of Wireless remote controller is the same as indoor unit according to the following content when you change custom code setting of indoor unit. 1.

  • Page 305: Ar-Reg1U

    5-3-3. AR-REG1U „ SWITCHING SELECTION OF FUNCTION SETTING MODE „ " buttons. While holding these 2 (2) Press and hold the "POWERFUL" and "SET TEMP. buttons, press the "RESET" button. POWERFUL SET TEMP. ( RESET REG1U REG1U Function setting mode display - (06 - 66) - 6.
  • Page 306 „ BUTTON NAME AND FUNCTION „ ● During function setting mode, indoor unit reject the any operation command from remote controller. Function number Refer to FUNCTION DETAILS Setting number Refer to FUNCTION DETAILS MIN HEAT button POWERFUL button Changes the display digits Switches between the setting number (bottom line) and function number (top line)
  • Page 307 „ FUNCTION SETTING „ (3) Press the " " or the " " buttons to select the function number. Each time the "MIN HEAT" button is pressed, it switehes between the one's place and the ten's place positions. Change digit Change digit (4) Press the "POWERFUL"...
  • Page 308 „ COMPLETION OF FUNCTION SETTING MODE „ (8) Press the "RESET" button. RESET REG1U „ SETTING UP EACH INDOOR UNIT „ Repeat steps (1) through to (8). Steps (1) through to (2) and (8) only need to carried out if the custom code is different to the factory setting of “A”.
  • Page 309 „ REMOTE CONTROLLER CUSTOM CODE SETTING „ In function setting, please change to the setting that custom code setting of Wireless remote controller is the same as indoor unit according to the following content when you change custom code setting of indoor unit. 1.

  • Page 310: Indoor Unit (Setting By Wired Remote Controller)

    5-4. INDOOR UNIT (setting by wired remote controller) ● The function settings of the control of the indoor unit can be changed by this procedure „ according to the installation conditions. Incorrect settings can cause the indoor unit malfunction. ● After the power is turned on, perform the “FUNCTION SETTING” according to the „...
  • Page 311 „ SWITCHING SELECTION OF FUNCTION SETTING MODE „ 2) To activate the function setting mode, hold down the three buttons of SET TEMP. V, SET TEMP. Λ and FAN at the same time for 5 seconds or longer. Function setting mode initial display „...
  • Page 312 „ FUNCTION SETTING „ 3) Pressing the SET TIME < button or the SET TIME > button, to select the function number. Function number 4) Pressing the SET TEMP. V button or the SET TEMP. Λ button, to select the setting number. The display flashes during setting number selection.
  • Page 313 „ COMPLETION OF FUNCTION SETTING MODE „ 6) To clear the function setting mode and return to the regular display, hold down the three buttons of SET TEMP. V, SET TEMP. Λ and FAN at the same time. Normal mode display * If no key entry is made for 60 seconds, even though none of the above buttons is pressed, the function setting mode will automatically be cleared.

  • Page 314: Indoor Unit (Setting By Simple Remote Controller)

    5-5. INDOOR UNIT (setting by simple remote controller) ● The function settings of the control of the indoor unit can be changed by this procedure „ according to the installation conditions. Incorrect settings can cause the indoor unit malfunction. ● After the power is turned on, perform the "FUNCTION SETTING" according to the „...
  • Page 315 „ SWITCHING SELECTION OF FUNCTION SETTING MODE „ 2) To activate the function setting mode, hold down the three buttons of SET TEMP. q , SET TEMP. p and FAN at the same time for 5 seconds or longer. Function setting mode initial display „...
  • Page 316 „ FUNCTION SETTING „ 3) Press the FAN button so that the "Function number" display flashes. Then, press either the SET TEMP. p button or the SET TEMP. q button to set up the function number. Function number 4) Press the FAN button so that the "Setting number" display flashes. Then, press either the SET TEMP.
  • Page 317 „ COMPLETION OF FUNCTION SETTING MODE „ 6) Press the three buttons of SET TEMP. p, SET TEMP. q and FAN at the same time for 5 seconds or longer. The function setting mode will be cleared and the regular display will be restored.

  • Page 318: Function Details

    5-6. FUNCTION DETAILS Compact Wall Functions Slim duct Floor cassette mounted 1) Filter sign 2) Ceiling height 3) Outlet directions 4) Vertical airflow direction range control 5) Static pressure 6) Room temperature control for indoor unit sensor 7) Auto restart 8) Room temperature sensor switching 9) Remote controller custom code 10) External input control...
  • Page 319 3) Outlet directions Select the appropriate number of outlet directions according to the installation conditions. (  ... Factory setting) Function number Setting value Setting description 4-way  3-way 4) Vertical airflow direction range control In a concealed installation, change the setting to "Fixed" (02) to restrict the movement of the upper air outlet so that the airflow is only towards the horizontal direction.
  • Page 320 6) Room temperature control for indoor unit sensor Refer to Function 95, before performing this setting. Depending on the installed environment, correction of the room temperature sensor may be required. Select the appropriate control setting according to the installed environment. The temperature correction values show the difference from the Standard setting "00"...
  • Page 321 7) Auto restart Enable or disable automatic restart after a power interruption.  ... Factory setting) Function number Setting value Setting description Enable  Disable Auto restart is an emergency function such as for power outage etc. Do not attempt to use this function in normal operation.
  • Page 322 12) Indoor unit fan control for energy saving for cooling Enables or disables the power-saving function by controlling the indoor unit fan rotation when the outdoor unit is stopped during cooling operation. (  ... Factory setting) Function number Setting value Setting description Disable ...

  • Page 323: Central Remote Controller

    5-7. CENTRAL REMOTE CONTROLLER Memory backup setting Prohibited Prohibited Switch Prohibited Prohibited Prohibited „ SWITCH POSITION „ DIP Switch 1 2 3 4 5 6 Front case (back side) - (06 - 84) - 6. SYSTEM DESIGN...
  • Page 324 „ DIP SWITCH SETTING „ z SW1 setting „ ●Memory backup setting Set to ON to use batteries for the memory backup. If batteries are not used, all of settings stored in memory will be deleted if there is a power failure.
  • Page 325 z SW5 setting prohibited „ (u...Factory setting) Fixed at OFF Setting prohibited z SW6 setting prohibited „ (u...Factory setting) Fixed at OFF Setting prohibited - (06 - 86) - 6. SYSTEM DESIGN...

  • Page 326: Wired Remote Controller

    5-8. WIRED REMOTE CONTROLLER Prohibited Dual remote controller setting Prohibited Switch 1 °F / °C switch Prohibited Memory backup setting * Do not use DIP Switch 2 „ SWITCH POSITION „ z Wired remote controller „ Front case (back side) DIP Switch 2 DIP Switch 1 (All switches...
  • Page 327 „ DIP SWITCH 1 SETTING „ z SW1 setting prohibited „ (u...Factory setting) Fixed at OFF Setting prohibited z SW2 setting „ ●Dual remote controller setting Set the remote controller SW2 according to the following table. Indoor unit (u...Factory setting) Secondary Primary unit Number...
  • Page 328 z SW5 setting prohibited „ (u...Factory setting) Fixed at OFF Setting prohibited z SW6 setting „ ●Memory backup setting (Wired remote controller only) Set to ON to use batteries for the memory backup. If batteries are not used, all of settings stored in memory will be deleted if there is a power failure.

  • Page 329: Simple Remote Controller

    5-9. SIMPLE REMOTE CONTROLLER Prohibited Dual remote controller setting °F / °C switch Switch Prohibited Prohibited Prohibited „ SWITCH POSITION „ z Simple remote controller „ DIP Switch - (06 - 90) - 6. SYSTEM DESIGN...
  • Page 330 „ DIP SWITCH 1 SETTING „ z SW1 setting prohibited „ (u...Factory setting) Fixed at OFF Setting prohibited z SW2 setting „ ●Dual remote controller setting Set the remote controller SW2 according to the following table. Indoor unit (u...Factory setting) Secondary Primary unit Number...
  • Page 331 z SW5 setting prohibited „ (u...Factory setting) Fixed at OFF Setting prohibited z SW6 setting prohibited „ (u...Factory setting) Fixed at OFF Setting prohibited - (06 - 92) - 6. SYSTEM DESIGN...

  • Page 332: Duct Static Pressure Setting

    5-10. DUCT STATIC PRESSURE SETTING „ MODELS: ARU7RLF, ARU9RLF, ARU12RLF, ARU18RLF, and „ ARU24RLF The airflow setting other than the default value of 0.1 inWG (25 Pa) may be changed to the required external static pressure. Setting of the airflow can be changed with the wireless remote controller, wired remote controller, and simple remote controller.

  • Page 333: Branch Box

    5-11. BRANCH BOX (u...Factory setting) Prohibited OFF u Prohibited OFF u switch Prohibited OFF u (SW401) Prohibited OFF u „ SWITCH POSITION „ - (06 - 94) - 6. SYSTEM DESIGN...

  • Page 334: Check Run

    6. CHECK RUN This operation allows the air conditioner to automatically check the status of the outdoor unit and check for wiring mistakes. Installation mistakes and positions where errors are occurring are shown by the outdoor unit display indicators. * The Check run time is used only as a guide. This time differs depending on the surrounding temperature conditions.
  • Page 335 „ RESTRICTIONS APPLICABLE WHEN PERFORMING THE CHECK „ ● When the Check run starts, all indoor units connected to the outdoor unit will start to run automatically. During the Check run, you cannot check the operation of the indoor units separately.

  • Page 336: Check Run Check Items And Procedure

    6-2. CHECK RUN CHECK ITEMS AND PROCEDURE Use the following procedure to perform the Check run. Check Item Procedure When an Error Occurs 1. Turn on 1.1 Check ▪ The power is on to the outdoor unit, When an error occurred power communi- connected branch boxes, and indoor units.

  • Page 337: Check Run Examples

    6-3. CHECK RUN EXAMPLES : Wiring : Piping „ EXAMPLE1 „ When the number of piping is more than the number of wiring. Branch box 1 (Primary) Branch box 2 (Secondary) Branch box 3 (Secondary) INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C INDOOR UNIT A INDOOR UNIT B...
  • Page 338 „ EXAMPLE3 „ When connection destination does not match. Branch box 1 (Primary) Branch box 2 (Secondary) Branch box 3 (Secondary) INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C Indoor...
  • Page 339 „ EXAMPLE4 „ When connection destination does not match. Branch box 1 (Primary) Branch box 2 (Secondary) Branch box 3 (Secondary) INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C Indoor...
  • Page 340 „ EXAMPLE5 „ When connection destination does not match Branch box 1 (Primary) Branch box 2 (Secondary) Branch box 3 (Secondary) INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C Indoor...

  • Page 341: Relocation And Increase Of Unit

    6-4. RELOCATION AND INCREASE OF UNIT Perform the following operation when the number of indoor unit/branch box is changed or circuit board of branch box/outdoor unit are exchanged. The air conditioner doesn't work normally if the following operation is not performed. „...

  • Page 342: External Input & Output

    7. EXTERNAL INPUT & OUTPUT 7-1. OUTDOOR UNIT Input Output Connector Remarks Low noise mode ― CN931 External input priority mode ― CN932 Peak cut mode ― CN933 See external Stop operation mode ― CN934 input/output settings for details. ― Error status CN951 ―...

  • Page 343: External Input

    7-1-1. EXTERNAL INPUT On/off of the "Low noise mode", "External input priority mode", "Peak cut mode", and "Stop operation mode" functions can be enable with an external field device. „ LOW NOISE MODE „ • The following reduces the operating sound of the outdoor unit from the normal sound. The air conditioner is set to the "Low noise mode"...
  • Page 344 „ EXTERNAL INPUT PRIORITY MODE „ • It is possible to switch to cooling operation or heating operation by using external input. z Circuit diagram example „ Outdoor unit control PCB Connected unit Example: Switch Connector Contact capacity: DC 24 V or more, 10 mA or more. *33 ft (10 m) Signal Locally purchased...
  • Page 345 „ PEAK CUT MODE „ • Operation that suppressed the current value can be performed by means of the following on- site work. The air conditioner is set to the Peak cut mode when closing the contact input of a commercial on/off switch to a connector on the outdoor control PCB.
  • Page 346 „ STOP OPERATION MODE „ • It is possible to switch to Batch stop or Emergency stop and Normal operation by using external input. z Circuit diagram example „ Outdoor unit control PCB Connected unit Example: Switch Connector Contact capacity: DC 24 V or more, 10 mA or more. *33 ft (10 m) Signal Locally purchased...
  • Page 347 ● When function setting is "Emergency stop" mode Input signal Emergency stop Command Normal Operation Air conditioner Stop Remote controller Remote control operation invalidity z Parts (Optional) „ Parts name External connect kit Model name UTY-XWZXZ3 - (06 - 108) - 6.

  • Page 348: External Output

    7-1-2. EXTERNAL OUTPUT „ ERROR STATUS OUTPUT „ • An air conditioner error status signal is produced when a malfunction occurs. z Circuit diagram example „ Outdoor unit Connected unit control PCB Connector Power supply 1) Power supply ●Voltage (Chart sign = Vcc): DC 24 V or less 2) Load Load ●...
  • Page 349 „ COMPRESSOR STATUS OUTPUT „ • Compressor operation status signal is produced when the compressor is running. z Circuit diagram example „ Outdoor unit Connected unit control PCB Connector Power supply 1) Power supply ●Voltage (Chart sign = Vcc): DC 24 V or less 2) Load Load ●...
  • Page 350 „ BASE HEATER „ • A base heater is a heating element that may be installed to melt the ice that may accumulate in the condenser drain pan. • This output signal is produced when the outdoor temperature drops down to 36 °F (2 °C), and releases at 39 °F (4 °C).
  • Page 351 7-2. INDOOR UNIT EXTERNAL INPUT EXTERNAL OUTPUT Indoor unit type Operation status Fresh air control Auxiliary heater Control input Error status output output output output ● ● ● ― ― Compact cassette ● ● ● ● ― Slim duct ● ●...
  • Page 352 ● When function setting is "Operation/Stop" mode Input signal Operation Indoor unit Stop ● When function setting is "Forced stop" mode Input signal Forced stop Command Normal Operation Indoor unit Stop Remote controller Remote control operation invalidity z Parts (Optional) „...

  • Page 353: External Output

    7-2-2. EXTERNAL OUTPUT „ OPERATION STATUS OUTPUT „ Wall mounted Floor ASU7RLF1 Compact ASU7RLF ASU9RLS2 AGU9RLF Slim duct ASU9RLF1 ASU18RLF cassette ASU9RLF ASU12RLS2 AGU12RLF ASU12RLF1 ASU24RLF ASU12RLF ASU15RLS2 AGU15RLF ASU15RLF1 Connector CN103 CN103 CN304 CNB01 CN16 CN20 An air conditioner operation status signal can be output. z Circuit diagram example „...
  • Page 354 „ FRESH AIR CONTROL OUTPUT „ Compact cassette Slim duct Wall mounted Floor Connector ― ― A signal linked to air conditioner indoor fan "on" can be output. * However, signal becomes off during cold air prevention control operation. z Circuit diagram example „...
  • Page 355 „ AUXILIARY HEATER OUTPUT „ Compact cassette Slim cuct Wall mounted Floor Connector ― CN10 ― ― A signal is outputed from connector when indoor fan and compressor turn on under heating operation. Tr-Ts * Signal output performance specifications are Tr - Ts = -2 °F (-1 °C) as shown on the right Tr - Ts = -6 °F ( -3 °C)
  • Page 356 „ ERROR STATUS OUTPUT „ Wall mounted Floor ASU7RLF1 Compact ASU7RLF ASU9RLS2 AGU9RLF Slim duct ASU9RLF1 ASU18RLF cassette ASU9RLF ASU12RLS2 AGU12RLF ASU12RLF1 ASU24RLF ASU12RLF ASU15RLS2 AGU15RLF ASU15RLF1 Connector ― ― ― CNB02 ― CN21 An air conditioner error status signal can be output. z Circuit diagram example „...

  • Page 357: Drain Connection

    8. DRAIN CONNECTION 8-1. OUTDOOR UNIT CAUTION Perform drain work in accordance with this manual, and ensure that the drain water is properly drained. If the drain work is not carried out correctly, water may drip down from the unit, wetting the furniture. When the outdoor temperature is 32 °F (0 °C) or less, do not use the accessory drain pipe and drain cap.

  • Page 358: Indoor Unit

    8-2. INDOOR UNIT „ GENERAL RULES OF DRAIN PROCESS „ ● Install the drain pipe with downward gradient (1/100 or more) and so there are no rises in the pipe. ● Use general hard polyvinyl chloride pipe and connect it with adhesive (polyvinyl chloride) so that there is no leakage.
  • Page 359 „ SLIM DUCT TYPE „ z Ceiling concealed setting „ Supporter Drain hose Drain cap Arrange the drain hose 5 to 7 ft lower than this position (1.5 to 2.0 m) PROHIBITED  Air bleeding   Rise Trap z Floor standing concealed setting „...
  • Page 360 Gap of 5 to 7 ft (1.5-2.0 m) Supporter Locally arranged pipe Max. PVC pipe 12 in (300 mm) (Local arrangement) (3/4 inch) Horizontal or upward gradient PROHIBITED Air bleeding Rise Trap CAUTION ● Drain lift-up pipe restrictions: (1) Lift-up height ≤ 28 in (700 mm) (from ceiling) (2) Drain hose (pipe) length ≤...
  • Page 361 „ WALL MOUNTED TYPE „ (ASU7RLF1, ASU9RLF1, ASU12RLF1, ASU15RLF1, ASU7RLF, ASU9RLF, ASU12RLF, ASU9RLS2, ASU12RLS2 ,and ASU15RLS2) Installation method of Drain cap For left outlet piping, cut off the piping outlet cutting groove with a hacksaw. No gap No gap Remove the drain cap by pulling at the projection at the end of the cap with pliers, etc.
  • Page 362 „ CENTRAL DRAIN PROCESS „ When converging multiple drain pipes, install according to the procedure shown below. T-joint converging drain pipes Select converging drain pipes whose diameter is suitable for the operating capacity of the unit. - (06 - 123) - 6.
  • Page 363 „ DRAIN INSULATION „ ● Confirm water flows into drain pan of the indoor unit, and drain is done normally when the connection of drain hose is completed. ● Check whether there is water leak part in the drain piping. ●...

  • Page 364: Standard Accessories

    9. STANDARD ACCESSORIES 9-1. OUTDOOR UNIT The following installation parts are supplied. Use them as required. Do not discard any accessories until the installation work has been completed. Name and shape Q'ty Application Installation manual Drain pipe For outdoor unit drain piping work Drain cap For outdoor unit drain...
  • Page 365 9-2. INDOOR UNIT „ COMPACT CASSETTE TYPE „ INDOOR UNIT ACCESSORIES CASSETTE GRILLE ACCESSORIES Name and shape Q'ty Application Name and shape Q'ty Application Operating Connector cover For covering connector manual Installation Tapping screw For mounting cassette grille manual (M5 × 12 mm) Coupler heat For indoor side pipe joint Tapping screw...
  • Page 366 „ SLIM DUCT TYPE „ Name and shape Q'ty Application Name and shape Q'ty Application Operating Filter (Small) manual (AR9/ 12/24) Installation Filter (Big) manual (AR18) Installation template For positioning the indoor unit (AR24) Drain hose For installing drain pipe (3/4 inch) Washer For installing indoor unit...
  • Page 367 „ WALL MOUNTED TYPE (ASU7RLF1, ASU9RLF1, ASU12RLF1, and „ ASU15RLF1) Name and shape Q'ty Application Name and shape Q'ty Application Operating Air cleaning filter manual Installation Filter holders manual Wall hook bracket For indoor unit Wireless remote installation controller Cloth tape For indoor unit Battery installation...
  • Page 368 „ WALL MOUNTED TYPE (ASU9RLS2, ASU12RLS2, and ASU15RLS2) „ Name and shape Q'ty Application Name and shape Q'ty Application Operating Seal A It is used when the diameter of gas pipe is manual Ø12.70 or more. It is necessary when using AS15.
  • Page 369 „ FLOOR TYPE (AGU9RLF, AGU12RLF, and AGU15RLF) „ Name and shape Q'ty Application Name and shape Q'ty Application Operating Cable tie manual Installation Air cleaning filter manual Wall hook bracket For indoor unit Wireless remote installation controller Cloth tape For indoor unit Battery installation Tapping screw...

  • Page 370: Optional Parts Installation

    10. OPTIONAL PARTS INSTALLATION 10-1. FRESH AIR INTAKE KIT „ MODEL: UTZ-VXAA „ „ FEATURE „ • It can be taken in fresh air of up to 10 % of “high” air volume of the indoor unit by attaching Fresh air intake kit to cassette type indoor unit.
  • Page 371 „ SPECIFICATIONS „ Model name UTZ-VXAA Fresh air Max. fresh air % (for intake intake volume High) Connection duct type in (mm) ø 3-15/16 (100) Dimension × × × × 4-3/4 22-7/16 22-7/16 (120 570) in (mm) × × × ×...
  • Page 372 „ PRECAUTION „ z About Fresh air intake kit „ • The Fresh air intake kit can be installed onto cassette type air conditioners. • The volume of ventilated air provided by the Fresh air intake kit may be unable to fulfill ventilation regulations in all countries.
  • Page 373 „ DIMENSIONS „ Unit: in (mm) Min.17-11/16 (450) Inspection hatch 4-1/4 (108) 10-1/8 (257) 3-15/16 (100) 7-15/16 (201) 1-3/4 (45) SIDE VIEW 22-7/16 (570) TOP VIEW SIDE VIEW • When installing this kit, inspection hatch is necessary. (It is necessary when servicing.) - (06 - 134) - 6.
  • Page 374 „ AIRFLOW „ 0.80 (200) Unit: in (mm) 0.60 (150) 0.40 (100) 0.20 (50) (17-11/16) Measurement position of shown in the graph (50) (100) (150) (200) Airflow [CFM (m /h)] - (06 - 135) - 6. SYSTEM DESIGN...
  • Page 375 „ FRESH AIR CONTROL OUTPUT „ • You can control duct fan by synchronization with fan operation of indoor unit. • Wire for fresh air control output is supplied with Fresh air intake kit. • Extended length of the wire: For Single & Multi split system: Max. 33 ft (10 m) z Connection diagram „...
  • Page 376 „ ACCESSORY PARTS „ Name and shape Q'ty Application Name and shape Q'ty Application Installation Extension wire for Extension wire for receiver kit receiving kit manual Chamber Air joint for connection Wire (External output  ) For connect indoor unit duct to relay of duct fan (For single or multi)
  • Page 377 „ INSTALLATION „ z Mounting of indoor unit „ ● Refer to the installation manual provided with the indoor unit for mounting. ● Refer to the diagram below for installation height. ● When installing this product to existing indoor units, please adjust the installation height of the indoor units to height 9-1/16 to 9-1/4 in (230 to 235 mm) Unit: in (mm) Metal hanging fastener...
  • Page 378 z Chamber installation „ Fit the four-sided holes of the chamber together with the hook fittings of the Fresh air intake kit (in 2 places), and secure the attached chamber in place with screws provided. Unit: in (mm) Ø3-15/16 (100) screw ×...
  • Page 379 z Duct installation „ ● Fasten the connecting parts of the ducts with band, and wrap with vinyl tape to ensure no air leaks. (Carry out the work to ensure no air leakage at a pressure of 0.80 in.WG [200 Pa].) ●...
  • Page 380 z Installation of cassette grille „ 1) Connect extension wires for use with louvers, or extension wire for optical receiver after provisional attaching of the cassette grille. 2) Tie the wires together with the fasteners provided and insert into the hole of the Fresh air intake kit.

  • Page 381: Refrigerant Concentration Precautions

    11. REFRIGERANT CONCENTRATION PRECAUTIONS The system designer and installer are to ensure that the system adheres to all local regulations regarding refrigerant leakage. 11-1. INTRODUCTION Designing HFI systems requires special attention to codes and standards relating to Refrigeration Concentration Limit (RCL). The RCL is intended to “reduce the risks of acute toxicity, asphyxiation and flammability hazards in normally occupied, enclosed spaces”.

  • Page 382: Checking Concentration Limit

    11-2. CHECKING CONCENTRATION LIMIT Check concentration limit following steps  , and take appropriate measures depending on the situation.  Calculate amount of refrigerant (lb [kg]) per refrigerant system. Amount of refrigerant per Amount of additional Total amount of refrigerant in refrigerant system refrigerant system (lbs, kg)

  • Page 383: Refrigeration Concentration Countermeasures

    11-3. REFRIGERATION CONCENTRATION COUNTERMEASURES When the concentration limit is exceeded, the designer will need to change the original design or use one of the countermeasures below to reduce potential exposure to refrigerant. Always consult local codes to ensure proper design. ●...

  • Page 384: Installation Precautions

    12. INSTALLATION PRECAUTIONS 12-1. INDOOR UNIT INSTALLATION PRECAUTIONS Note: The information listed below are general precautions. Some models also include items that do not apply. „ PLACES WHERE USE PROHIBITED „ ● Places where there is the danger of combustible gas leakage ●...
  • Page 385 [Installation precautions] Contents Countermeasures (Reference) When inside When the indoor unit is installed where the 1) Add heat insulating material the ceiling inside of the ceiling is 30 °C (86 °F) RH80 % to the outside of the indoor is high or greater, the dew point temperature of the unit cabinet.
  • Page 386 [Installation precautions] Contents Countermeasures (Reference) When When the wall mounting type was installed 1) Plan installation of a model installation in a bedroom, living room, or other quiet with external expansion environment is place, the sound of the refrigerant flow may valve.

  • Page 387: Outdoor Unit Installation Precautions

    12-2. OUTDOOR UNIT INSTALLATION PRECAUTIONS Note: The information listed below are general precautions. Some models also include items that do not apply. „ PLACES WHERE USE PROHIBITED „ ● Places where there is the danger of combustible gas leakage ● Places where sulfur gas, chlorine gas, acid, alkali, or other matter which effects equipment is generated ●...
  • Page 388 Hybrid Flex Inverter System 7. OPTIONAL PARTS DTR_BMU004E_03--CHAPTER07 2016.09.30...
  • Page 389 CONTENTS 7. OPTIONAL PARTS 07 - 01 1. SEPARATION TUBE ..............07 - 02 2. BRANCH BOX ................07 - 04 3. CONTROLLER ................07 - 05 4. CASSETTE GRILLE ..............07 - 06 5. OTHERS ..................

  • Page 390: Optional Parts

    1. SEPARATION TUBE „ MODEL: UTP-SX248A „ Unit: in (mm) z Port diameters „ Liquid pipe Gas pipe Q'ty Q'ty ø 3/8 (9.52) ø 5/8 (15.88) z Heat insulation „ For liquid pipe For gas pipe Q'ty Q'ty z Dimensions „...

  • Page 391: Branch Box

    2. BRANCH BOX Model Type UTP-PU03A Primary UTP-PU03B Secondary „ DIMENSION „ 8-7/16 (214) 6-7/8 (174) Unit: in (mm) 6-1/16 (154) 5-1/4 (134) 4-10/16 6-15/16 (176) (110) 8-1/2 (216) 10-1/16 (256) 18-7/16 (469) 17 (432)      ...
  • Page 392 „ ACCESSORIES „ Name and Shape Q'ty Application Name and Shape Q'ty Application Installation Manual Washer For suspending the Branch box from ceiling Tapping screw For installing the Hanger (M4 × 10) Coupler heat For indoor and insulation (large) outdoor side pipe joint (gas pipe) Tapping screw For installing the...

  • Page 393: Controller

    3. CONTROLLER „ LINE UP „ Indoor units Wall mounted ASU7RLF1 ASU7RLF ASU9RLS2 Type Model Compact ASU9RLF1 ASU18RLF Slim duct Floor cassette ASU9RLF ASU12RLS2 ASU24RLF ASU12RLF1 ASU12RLF ASU15RLS2 ASU15RLF1 Central remote UTY-DMMUM  *1  *1  *1  *1 ...

  • Page 394: Cassette Grille

    4. CASSETTE GRILLE „ LINE UP „ Indoor units Wall mounted ASU7RLF1 ASU7RLF ASU9RLS2 Type Model Compact ASU9RLF1 ASU18RLF Slim duct Floor cassette ASU9RLF ASU12RLS2 ASU12RLF1 ASU24RLF ASU12RLF ASU15RLS2 ASU15RLF1 Cassette grille UTG-CCGF  „ PARTS „ Cassette grille Model : UTG-CCGF - (07 - 05) - 7.

  • Page 395: Others

    5. OTHERS „ LINE UP „ Indoor units Wall mounted ASU7RLF1 Outdoor ASU7RLF ASU9RLS2 Type Model Compact Slim unit Floor ASU9RLF1 ASU18RLF cassette duct ASU9RLF ASU12RLS2 ASU12RLF1 ASU24RLF ASU12RLF ASU15RLS2 ASU15RLF1 Air outlet shutter plate UTR-YDZB  Insulation kit for high UTZ-KXGC ...
  • Page 396 „ PARTS „ Air outlet shutter plate Insulation kit for high humidity Model: UTR-YDZB Model: UTZ-KXGC Insulation For Compact cassette type For Compact cassette type Fresh air intake kit External control set Model: UTZ-VXAA Model: UTD-ECS5A ( x 1 ) ( x 2 ) ( x 1 ) ( x 2 )
  • Page 397 „ PARTS „ Communication kit Communication kit Model: UTY-XCBXZ2 Model: UTY-XCBXZ1 For Wall mounted For Wall mounted (ASU7RLF1, ASU9RLF1, ASU12RLF1, and (ASU7RLF, ASU9RLF, and ASU12RLF) type ASU15RLF1) type Communication kit Model: UTY-TWBXF For Wall mounted (ASU9RLS2, ASU12RLS2, and ASU15RLS2) type - (07 - 08) - 7.
  • Page 398 3-3-17, Suenaga, Takatsu-ku, Kawasaki 213-8502, Japan URL : http://www.fujitsu-general.com Copyright© 2010, 2016 Fujitsu General Limited. All rights reserved. • Product specifications and design are subject to change without notice for future improvement. • For further details, check with our authorized dealer.

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