Page 1 AIR CONDITIONERS CITY MULTI Service Handbook PUHY-P200YEM-A, P250YEM-A, P315YEM-A Models PUY-P200YEM-A, P250YEM-A, P315YEM-A PURY-P200YEM-A, P250YEM-A CMB-P104, P105, P106, P108, P1010, P1013, P1016V-F PUHY-200YEM-A, 250YEM-A, 315YEM-A PUY-200YEM-A, 250YEM-A, 315YEM-A PUHY-250YEMK-A, 315YEMK-A PUHY-200YEMC-A, 250YEMC-A, 315YEMC-A...
Page 2: Table Of Contents
Contents ¡ PRECAUTIONS FOR DEVICES THAT USE R407C REFRIGERANT ..[1] Storage of Piping Material ..............4 [2] Piping Machining ................5 [3] Necessary Apparatus and Materials and Notes on Their Handling .. 6 [4] Brazing ....................7 [5] Airtightness Test ................8 [6] Vacuuming ..................
Page 3: Safety Precautions
• Do not reconstruct or change the settings of the protection devices. - If the pressure switch, thermal switch, or other protection device is shorted and operated forcibly, or parts other than those specified by Mitsubishi Electric are used, fire or explosion may result. - 2 -...
Page 4: Precautions For Devices That Use R407C Refrigerant
¡ PRECAUTIONS FOR DEVICES THAT USE R407C REFRIGERANT Caution Do not use the existing refrigerant piping. Use a vacuum pump with a reverse flow check valve. • The vacuum pump oil may flow back into the refriger- • The old refrigerant and refrigerator oil in the existing ant cycle and cause the refrigerator oil to deteriorate.
Page 5: Storage Of Piping Material
[1] Storage of Piping Material (1) Storage location Store the pipes to be used indoors. (Warehouse at site or owner’s warehouse) Storing them outdoors may cause dirt, waste, or water to infiltrate. (2) Pipe sealing before storage Both ends of the pipes should be sealed until immediately before brazing. Wrap elbows and T’s in plastic bags for storage.
Page 6: Piping Machining
[2] Piping Machining Use ester oil, ether oil or alkylbenzene (small amount) as the refrigerator oil to coat flares and flange connections. Use only the necessary minimum quantity of oil. Reason : 1. The refrigerator oil used for the equipment is highly hygroscopic and may introduce water inside. Notes : •...
Page 7: Necessary Apparatus And Materials And Notes On Their Handling
[3] Necessary Apparatus and Materials and Notes on Their Handling The following tools should be marked as dedicated tools for R407C. <<Comparison of apparatus and materials used for R407C and for R22>> Apparatus Used R407C Gauge manifold Evacuating, refrigerant filling Current product Charging hose Operation check...
Page 8: Brazing
[4] Brazing No changes from the conventional method, but special care is required so that foreign matter (ie. oxide scale, water, dirt, etc.) does not enter the refrigerant circuit. Example : Inner state of brazed section When non-oxide brazing was not used When non-oxide brazing was used Items to be strictly observed : 1.
Page 9: Airtightness Test
[5] Airtightness Test No changes from the conventional method. Note that a refrigerant leakage detector for R22 cannot detect R407C leakage. Halide torch R22 leakage detector Items to be strictly observed : 1. Pressurize the equipment with nitrogen up to the design pressure and then judge the equipment’s airtightness, taking temperature variations into account.
Page 10: Charging Of Refrigerant
[7] Charging of Refrigerant R407C must be in a liquid state when charging, because it is a non-azeotropic refrigerant. For a cylinder with a syphon attached For a cylinder without a syphon attached Cylin- Cylin- Cylinder color identification R407C-Gray Charged with liquid refrigerant R410A-Pink Valve Valve...
Page 11: Component Of Equipment
™ COMPONENT OF EQUIPMENT [1] Appearance of Components Outdoor unit • PUHY-P200, 250, 315YEM-A Propeller fan Fan motor Heat exchanger Control box Accumlator 4way valve Dryer Compressor - 10 -...
Page 12 • PURY-P200·250YEM-A Propeller fan Fan motor Heat exchanger Control box Accumulator 4way valve Dryer Compressor - 11 -...
Page 13 • PUHY-200, 250, 315YEM ( K,C ) -A Propeller fan Fan motor Heat exchanger Control box Accumulator 4way valve Compressor - 12 -...
Page 14 Controller Box ACCT FANCON board INV board MAIN board Noise filter Choke coil (L2) Terminal block TB1A Power Source Terminal block TB7 Transmission (Centralized control) Terminal block TB3 Transmission Inteligent Power Module (IPM) DCCT G/A board Capacitor (C2, C3) (Smoothing capacitor) Diode stack (DS) Magnetic contactor (52C) - 13 -...
Page 15 MAIN board • PUHY / PURY CNVCC4 Power source CNTR CNFC1 CNS1 CNS2 CN40 CN41 CNVCC3 for control(5V) Power Source for control 1-2 30V 1-3 30V 4-6 12V 5-6 5V CN51 Indication distance 3-4 Compressor ON/OFF 3-5 Trouble CNRS3 Serial transmission to INV board CN3D CN3S...
Page 16 INV board CNVDC DC-560V CN15V2 Power supply for IPM control CNFG Frame grounding CNVCC4 Power supply (5V) CNL2 CN52AC Choke coil Control for CNVCC2 Power supply 1-2 30V, 1-3 30V CNAC2 I 4-6 12V, 5-6 5V Power source CNDR2 1 L2 Out put to G/A board CNCT...
Page 17 FANCON board CNPOW CNFAN CNFC2 G/A board Terminal for signal grounding CNDC1 CNDC2 CN15V1 CNIPM1 CNDR1 - 16 -...
Page 18 RELAY 10 board RELAY 4 board - 17 -...
Page 19 BC controller CNTR CN02 M-NET CN12 transmission Power supply 1 EARTH CN03 - 18 -...
Page 20: Refrigerant Circuit Diagram And Thermal Sensor
[2] Refrigerant Circuit Diagram and Thermal Sensor 1PUHY-P200/250/315YEM-A - 19 -...
Page 21 2PUY-P200/250/315YEM-A - 20 -...
Page 22 PURY-P200/250YEM-A Solenoid Valves Block 21S4 63HS 63LS HEXb HEXf3 HEXf2 HEXf1 ST11 ST10 Comp CV10 Orifice Accumulator Check Valves Block Drier CS circuit CP2 ST4 : Solenoid valve : Thermal sensor : Orifice : Strainer : Capillary : Service port : Check valve ACC : Accumulator Gas/liquid separator...
Page 23 PUHY-200/250/315YEM(K,C)-A - 22 -...
Page 24 5PUY-200/250/315YEM-A - 23 -...
Page 25: Electrical Wiring Diagram
[3] Electrical Wiring Diagram PU(H)Y-(P)200·250·315YEM(K,C)-A Motor Inverter (Compressor) Controller Box White Black ACCT ACCT Terminal Noise Terminal Diode Block Block stack Filter TB1B TB1A ZNR4 CNDC2 (4P) Power source 380/400/415V White White White 50/60Hz Gate amp board Black Black Black (G/A board) 1 2 3 4 DCCT...
Page 26 PURY-P200·250YEM-A Motor Inverter (Compressor) Controller Box White Black ACCT ACCT Noise Terminal Terminal Diode Filter Block stack Block TB1B TB1A CNDC2 ZNR4 (4P) Power source 380/400/415V White White White 50/60Hz Gate amp board Black Black Black (G/A board) 1 2 3 4 DCCT Blue Blue...
Page 27 3 CMB-P104, P105, P106V-F - 26 -...
Page 28 4 CMB-P108, P1010V-F - 27 -...
Page 29 5 CMB-P1013, P1016V-F - 28 -...
Page 30: Standard Operation Data
[4] Standard Operating Data PU(H)Y-P200·250YEM-A ·Cooling mode Outdoor unit PUHY-P200YEM-A PUHY-P250YEM-A Items PUY-P200YEM-A PUY-P250YEM-A Indoor 27.0/19.0 27.0/19.0 Ambient temp. DB/WB Outdoor 35.0/24.0 35.0/24.0 Quantity Indoor unit Quantity in operation – Model Main pipe Piping Branch pipe Total piping length – Indoor unit fan notch Refrigerant volume 11.7...
Page 31 ·Heating Outdoor unit PUHY-P200YEM-A PUHY-P250YEM-A Items Indoor 20.0/– 20.0/– Ambient temp. DB/WB Outdoor 7.0/6.0 7.0/6.0 Quantity Indoor unit Quantity in operation – Model Main pipe Piping Branch pipe Total piping length – Indoor unit fan notch Refrigerant volume 11.7 11.7 11.4 10.5 15.1...
Page 32 PU(H)Y-P315YEM-A Outdoor unit Cooling Operation Heating Operation Items Indoor 27.0/19.0 20/- Ambient temp. DB/WB Outdoor 35.0/24.0 7.0/6.0 Quantity Indoor unit Quantity in operation – Model Main pipe Piping Branch pipe Total piping length – Indoor unit fan notch Refrigerant volume 13.7 13.7 18.7...
Page 33 PURY-P200·250YEM-A ·Cooling Outdoor unit PURY-P200YEM-A PURY-P250YEM-A Items Indoor 27.0/19.0 27.0/19.0 Ambient temp. DB/WB Outdoor 35.0/24.0 35.0/24.0 Quantity Q’ty Indoor unit Quantity in operation Model – Main pipe Piping Branch pipe Total piping length Indoor unit fan notch – Refrigerant volume 11.7 11.7 Compressor volts...
Page 34 ·Heating Outdoor unit PURY-P200YEM-A PURY-P250YEM-A Items Indoor 20.0/– 20.0/– Ambient temp. DB/WB Outdoor 7.0/6.0 7.0/6.0 Quantity Q’ty Quantity in operation Indoor unit Model – Main pipe Piping Branch pipe Total piping length Indoor unit fan notch – Refrigerant volume 11.7 11.7 Compressor volts Outdoor unit total current...
Page 35 PU(H)Y-200·250·315YEM(K,C)-A ·Cooling Outdoor unit PU(H)Y-200YEM-A PUHY-200YEMC-A Items Indoor 27.0/19.0 27.0/19.0 Ambient temp. DB/WB Outdoor 35.0/24.0 35.0/24.0 Quantity Indoor unit Quantity in operation – Model Main pipe Piping Branch pipe Total piping length – Indoor unit fan notch Refrigerant volume 11.7 11.7 10.4 14.5...
Page 36 ·Cooling PU(H)Y-315YEM-A Outdoor unit PU(H)Y-250YEM-A PUHY-250YEMK-A PUHY-315YEMK-A Items PUHY-250YEMC-A PUHY-315YEMC-A Indoor 27.0/19.0 27.0/19.0 27.0/19.0 Ambient temp. DB/WB Outdoor 35.0/24.0 35.0/24.0 35.0/24.0 Quantity Indoor unit Quantity in operation – Model Main pipe Piping Branch pipe Total piping length – Indoor unit fan notch Refrigerant volume 11.7 11.7...
Page 37 ·Heating PUHY-250YEM-A Outdoor unit PUHY-200YEM-A PUHY-250YEMK-A Items PUHY-200YEMC-A PUHY-250YEMC-A Indoor 20.0/– 20.0/– Ambient temp. DB/WB Outdoor 7.0/6.0 7.0/6.0 Quantity Indoor unit Quantity in operation – Model Main pipe Piping Branch pipe Total piping length – Indoor unit fan notch Refrigerant volume 11.7 11.7 11.2...
Page 38 ·Heating PU(H)Y-315YEM-A Outdoor unit PUHY-315YEMK-A Items PUHY-315YEMC-A Indoor 20.0/– Ambient temp. DB/WB Outdoor 7.0/6.0 Quantity Indoor unit Quantity in operation – Model Main pipe Piping Branch pipe Total piping length – Indoor unit fan notch Refrigerant volume 13.7 18.2 16.6 Total current Volts Indoor unit...
Page 39: Function Of Dip Sw And Rotary Sw
[5] Function of Dip SW and Rotary SW (1) Outdoor unit PU(H)Y-P200·250·315YEM-A Function according to switch operation Switch set timing Switch Function When off When on When off When on Unit address setting Set on 51~100 with the dial switch. Before power is turned on.
Page 40 PURY-P200·250YEM-A Function according to switch operation Switch set timing Switch Function When off When on When off When on Unit address setting Set on 51~100 with the dial switch. Before power is turned on. Refrigerant model Before power is turned on. R407C For self diagnosis/ LED monitering display...
Page 41 PU(H)Y-200·250·315YEM(K,C)-A Function according to switch operation Switch set timing Switch Function When off When on When off When on Unit address setting Set on 51~100 with the dial switch. Before power is turned on. Before power is turned on. Refrigerant model R407C For self diagnosis/ LED Monitering Displa...
Page 42 (2) Indoor unit DIP SW1, 3 Operation by SW Switch set timing Remarks Switch SW name Room temp. sensor position Indoor unit inlet Built in remote controller Clogged filter detect. None Provided Filter duration 100h 2500h ays ineffective for PKFY-P.VAM OA intake Ineffective Effective...
Page 43 Setting of DIP SW4 Setting of DIP SW5 Model Circuit board used 220V 240V – PMFY-P-VBM-A PLFY-P125VLMD-B – PDFY-P20 ~ 80VM-A PLFY-P40 ~ 63VKM-A – – PLFY-P80 ~ 125VAM-A(2) Phase control – PCFY-P-VGM-A – PKFY-P-VGM-A – – – – – PKFY-P-VAM-A –...
Page 44: Test Run
£ TEST RUN [1] Before Test Run (1) Check points before test run Neither refrigerant leak nor loose power source/ transmission lines should be found. Confirm that the resistance between the power source terminal block and the ground exceeds 2MΩ by measur- ing it with a DC500V megger.
Page 45 (3) Check points for test run when mounting options Result Built-in optional parts Content of test run Check point Mounting of drain Release connector of pump circuit, Local remote controller displays code water removing check error detection by pouring No. “2503”, and the mechanism stops. mechanism water into drain pan water inlet.
Page 46 (5) Check points for system structure ex. PURY-P200YEM-A Check points from installation work to test run. Classification Portion Check item Trouble Installation and Instruction for selecting combination of outdoor unit, piping and indoor unit followed? (Maximum number of indoor Not operate. units which can be connected, connecting model name, and total capacity.) Follow limitation of refrigerant piping length? For ex-...
Page 47 CENTRALLY CONTROLLED 1Hr. CENTRALLY CONTROLLED 1Hr. ˚C ˚C ON OFF ON OFF D A I L Y D A I L Y AUTO OFF CLOCK FILTER AUTO OFF CLOCK FILTER CHECK REMAINDER CHECK REMAINDER CHECK MODE CHECK MODE TEST RUN TEST RUN STAND BY STAND BY...
Page 48: Test Run Method
[2] Test Run Method Operation procedure Turn on universal power supply at least 12 hours before getting started Displaying “HO” on display panel for about two minutes Press button twice Displaying “TEST RUN’’ on display panel TEST RUN Press selection button Make sure that air is blowing out Press select button to change from cooling to heating operation, and vice versa...
Page 49: Grouping Registration Of Indoor Units With Remote Controller
¢ GROUPING REGISTRATION OF INDOOR UNITS WITH M-NET REMOTE CONTROLLER (1) Switch function • The switch operation to register with the remote controller is shown below: CENTRALLY CONTROLLED ˚C ON OFF D A I L Y AUTO OFF CLOCK FILTER REMAINDER CHECK CHECK MODE...
Page 50 (2) Attribute display of unit • At the group registration and the confirmation/deletion of registration/connection information, the type (attribute) of the unit is displayed with two English characters. Display Type (Attribute) of unit/controller Indoor unit connectable to remote controller Outdoor unit Local remote controller System controller (MJ) OA Processing...
Page 51 (3) Group registration of indoor unit Registration method ¡ • Group registration of indoor unit ................ The indoor unit to be controlled by a remote controller is registered on the remote controller. [Registration procedure] 1 With the remote controller under stopping or at the display of “HO”, continuously press the switch FILTER ) at the same time for 2 seconds to change to the registration mode.
Page 52 Method of retrieval/confirmation ™ • Retrieval/confirmation of group registration information on indoor unit ....The address of the indoor unit being registered on the remote controller is displayed. [Operation procedure] With the remote controller under stopping or at the display of “HO”, continuously press the switch FILTER + B) at the same time for 2 seconds to change to the registration mode.
Page 53 • Registered ˚C (Alternative display) ˚C TEMP ON/OFF CLOCK ON OFF FILTER CHECK TEST PAR-F27MEA TIMER SET ˚C 1 + 2 (Alternative display) 2 Press the switch for 1 Set the address confirmation (E) ˚C ˚C INDOOR UNIT ERROR CODE ADDRESS NO OA UNIT ADDRESS NO Same display will appear when...
Page 54 Deletion of information on address not existing • Deletion of information on address not existing ........... ∞ This operation is to be conducted when “6607” error (No ACK error) is displayed on the remote controller caused by the miss setting at test run, or due to the old memory remained at the alteration/modification of group composition, and the address not existing will be deleted.
Page 55: Control
∞ CONTROL [1] Control of Outdoor Unit (1) Initial processing • When turning on power source, initial processing of microcomputer is given top priority. • During initial processing, control processing corresponding to operation signal is suspended. The control process- ing is resumed after initial processing is completed. (Initial processing : Data processing in microcomputer and initial setting of each LEV opening, requiring approx.
Page 56 (4) Frequency control • Depending on capacity required, capacity control change and frequency change are performed to keep constant evaporation temperature in cooling operations, and high pressure saturation temperature in heating operation. • Frequency change is performed at the rate of 3Hz/second as follows. Cooling Heating Unit...
Page 57 (5) Subcool coil control (electronic expansion valve <LEV1>) : PUHY-(P)200·250·315 • The amount of super heat detected from the bypass outlet temperature of subcool coil (TH8) is controlled to be within a certain range for each 30 seconds. • The opening angle is corrected and controlled depending on the outlet/inlet temperature of subcool coil (TH5, TH7) and the discharge temperature.
Page 58 2 PURY-P200·250 Starting of defrost operations • After integrated 43 minutes of compressor operations, defrosting operations start when –10˚C or less of piping temperature (TH7) is detected for 3 consecutive minutes. • Forcible defrosting operations start by turning on forcible defrost switch (SW2-7) if 10 minutes have already elapsed after compressor start or completion of defrosting operations and will last for 10 mins.
Page 59 (8) Refrigerant Recovery Control Refrigerant recovery is performed to prevent refrigerant from accumulating in the stopping unit, the unit under cooling mode and that with heating thermostat being turned off. PU(H)Y-(P)200·250 Start of Refrigerant recover in Heating Start of Refrigerant recover is Cooling Refrigerant recovery is started when all of the items Refrigerant recovery is started when all of the items below are satisfied.
Page 60 (10) Outdoor unit heat exchanger capacity control PURY-P200·250 Control method • In order to stabilize the evaporation temperature during cooling and the high-pressure pressure during heating that are required in response to performance needs, the capacity of the outdoor heat exchanger is controlled by regulating the fan volume of the outdoor unit by phase control and controlling the number of fans and by using the solenoid valves to vary the number of out door heat exchangers being used.
Page 61 (12) Control at initial starting • The following initial start mode will be performed when the unit is started for the first time after the power has been turned on. <Flow chart of initial start mode> Start of initial operation mode Step 1 The compressor operated at F ≤...
Page 62: Control Of Bc Controller
[2] Control of BC Controller (1) Control of SVA, SVB and SVC SVA, SVB and SVC are turned on and off depending on connection mode. Mode Cooling Heating Stop Defrost Connection (2) Control of LEV LEV opening (sj) is controlled corresponding to operation mode as follows: (Number of pulse) Operation mode Cooling-only...
Page 63: Operation Flow Chart
[3] Operation Flow Chart (1) Outdoor unit Start Normal operations Breaker turned on Trouble observed Stop “HO” blinks on the remote controller Note : 1 Set indoor ad- dress No. to remote controller Operation command SC coil LEV (PUHY) fully closed Operation mode Cooling-only, Heating-only,...
Page 64 (2) BC controller (for PURY) Start Normal operations Breaker turned on Trouble observed Stop Operation command 1. Operation mode judgement (cooling-only, heating-only, cooling/heating mixed) 2. Transmission to outdoor unit Receiving operation mode command from outdoor unit Note : 1 Error mode Error stop Cooling/heating mixed Operation mode...
Page 65 (3) Indoor unit Start Normal operations Trouble observed Breaker turned on Stop Operation SW turned on Note :1 1. Protection function self-holding cancelled. 2. Indoor unit LEV fully closed. Note :2 Remove controller display extinguished Error mode Operation mode Error stop only for PURY Error code blinks on Heating...
Page 66 (4) Cooling operation Cooling operation Normal operations 4-way valve OFF Test run Stop Indoor unit fan operations Test run start Thermostat ON 3-minute restart prevention 1. Inverter output 0Hz 2. Indoor unit LEV, Subcool coil 1. Inverter frequency control bypass LEV fully closed 2.
Page 67 (5) Heating operation Normal operations Heating operation Defrosting operations Note : 1 Stop Test run Defrosting operation 4-way valve OFF 4-way valve ON Test run start 1. Indoor unit fan stop 2. Inverter defrost frequency control 3. Indoor unit LEV fully opened 4.
Page 68 (6) Dry operation Dry operations Normal operations Thermostat ON 4-way valve OFF Stop Test run start Note : 2 Thermostat ON Inlet temp. 18˚C Note : 1 1. Indoor unit fan stop 1. Outdoor unit (Compressor) intermit- 2. Inverter output 0Hz tent operations 3.
Page 69: List Of Major Component Functions
[4] List of Major Component Functions Symbol Name Application Specification Check method Object (function) Compres- Adjust refrigerant circulation by • PU(H)Y- Low pressure shell scroll type controlling operating frequency and (P)200·250·315 with capacity control mechanism capacity control valve with operating •...
Page 70 Symbol Name Application Specification Check method Object (function) Thermistor THHS 1) Detects the inverter cooling fin =17kΩ • PU(H)Y- temperature. =4170 (P)200·250·315 25/50 2) Provides inverter overheating Rt = protection. 17exp{4170( • PURY- 273+50 273+t 3) Controls the control box cooling P200·250 fan.
Page 71 Symbol Name Application Specification Check method Object (function) Pressure 1) Liquid pressure (high-pressure) sensor detection Pressure 2) LEV control 0~2.94MPa Vout 0.5~3.5 V Con- Gnd (black) nector Vout (white) 1) Intermediate pressure detection Vc (DC5V) (red) 2) LEV control Thermistor TH11 LEV control (liquid refrigerant control) =15kΩ...
Page 72: Resistance Of Temperature Sensor
- 71 -...
Page 73: Refrigerant Amount Adjustment
§ REFRIGERANT AMOUNT ADJUSTMENT Clarify relationship between the refrigerant amount and operating characteristics of CITY MULTI, and perform service activities such as decision and adjustment of refrigerant amount on the market. [1] Refrigerant Amount and Operating Characteristics The followings are refrigerant amount and operating characteristics which draw special attention. During cooling operations, required refrigerant amount tends to increase (refrigerant in accumulator decreases) in proportion to increase in the number of operating indoor units.
Page 74 Refrigerant Volume Checking the Operating Condition Operate all the indoor units on cooling or on heating, checking the discharge temperature, sub-cooling, low pres- sure saturation temperature, inlet temperature, shell bottom temperature, liquid level, liquid step, etc. and rendering an overall judgment. Condition Judgement 1 Outlet temperature is high.
Page 75 (3) Additional Refrigerant Charge Volume At the time of shipping from the factory, the outdoor unit is charged with the amount of coolant shown in the follow- ing table, but since no extension piping is included, please carry out additional charging on-site. Outdoor Unit Model Name PU(H)Y-(P)200 PU(H)Y-(P)250...
Page 76: Refrigerant Volume Adjustment Mode Operation
for PU(H)Y-(P)200·250·315 Refrigerant Volume Adjustment Mode Operation 1 PU(H)Y-(P)200·250·315 Procedure Depending on the operating conditions, it may be necessary either to charge with supplementary refrigerant, or to drain out some, but if such a case arises, please follow the procedure given below flow chart. Switching the function select switch (SW2-4), located on the outdoor unit's control board, ON starts refrigerant volume adjustment mode operation and the following operation occurs.
Page 77 Refrigerant adjustment method PUHY-(P)200·250·315 Start = Yes Note 1, Operated using outdoor unit DIP SW3-1 and 3-2. = No Note 2 , Ensure that no refrigerant is released into the Note 1 atmosphere All indoor units are run in test cooling mode Note 3 , Always charge the system with liquid refrigerant, if the system is charged with gas the composition will change and...
Page 78 for PURY-P200·250 2 PURY-P200·250 Procedure Depending on the operating conditions, it may be necessary either to charge with supplementary refrigerant, or to drain out some, but if such a case arises, please follow the procedure given below flow chart. Note 1: As the refrigerant volume can not be adjusted in the heating mode, retrieve the refrigerant, evacuate air and then fill the specified volume of refrigerant if it is necessary to adjust the refrigerant volume in the winter season.
Page 79 Refrigerant adjustment method PURY-P200·250 Start = Yes Note 1 , Operated using outdoor unit DIP SW3-1 and 3-2. = No Note1 All indoor units are run in Note 2 , Ensure that no refri gerant is released into test cooling mode the atmosphere Note 3 , SC11 : Liquid refrigerant sub-cooling for Wait for 30minutes of...
Page 80 for PURY-P200·250 ¡ Time required for recovering refrigerant from low pressure service port (minute) Low pressure (MPa) 0.34~0.44 0.44~0.54 0.54~0.74 Refrigerant amount to be drawn out (kg) 12.0 10.5 10.0 16.0 14.0 13.0 20.0 18.0 16.5 24.0 21.5 19.5 28.0 25.0 23.0 32.0...
Page 81: Troubleshooting
¶ TROUBLESHOOTING [1] Principal Parts Pressure Sensor 1) Check for failure by comparing the sensing pressure according to the high pressure/low pressure pressure sensor and the pressure gauge pressure. Set SW1 as shown below to display the high and low pressure sensor data displayed digitally by the light emitting diode LD1.
Page 82 Connector connection specifications on the pressure sensor body side. The connector’s pin numbers on the pressure sensor body side differ from the pin numbers on the main circuit board side. Sensor Body Side MAIN Board Side Pin 1 Pin 3 Vout Pin 2 Pin 2...
Page 83 Solenoid Valve (SV1,3-6 for PURY-P200·250) Check if the control board’s output signals and the operation of the solenoid valves match. Setting the self-diagnosis switch (SW1) as shown in the figure below causes the ON signal of each relay to be output to the LED’s.
Page 84 (d) The refrigerant flow is as following figure. Hot gas (high pressured) flows in cooling mode and cool gas/liquid (low pressured) flows in heating mode. Please refer to the Refrigerant Circuit Diagram. And, ON/OFF of Solenoid valve is depends on the amount of running indoor units, ambient temperature and so on.
Page 85 Outdoor LEV The valve opening angle changes in proportion to the number of pulses. (Connections between the outdoor unit’s MAIN board and LEV1 (PU(H)Y-(P)200·250·315)) Brown Blue Orange Yellow White Pulse Signal Output and Valve Operation Output pulses change in the following orders when the Output states Output (phase) Valve is Closed...
Page 86 Indoor LEV, BC LEV1 and 2 The valve opening angle changes in proportion to the number of pulses. (Connections between the indoor unit’s MAIN board and indoor LEV) Indoor Control Board DC12V Wire joining connector Brown Blue Orange Yellow White Indoor Unit Connector CN60 Pulse Signal Output and Valve Operation...
Page 87 Judgment methods and likely failure mode Caution: The specifications of the outdoor unit (outdoor LEV) and indoor unit (indoor LEV) differ. For this reason, there are cases where the treatment contents differ, so follow the treatment specified for the appropriate LEV as indicated in the right column.
Page 88 Outdoor LEV Coil Removal Procedure (configuration) As shown in the figure, the outdoor LEV is made in such a way that the coils and the body can be separated. Body Coils Stopper Indentation for Stopper (12 places around the circumference) Lead Wires <Removing the Coils>...
Page 89 Check Valves Block PURY-P200·250 The refrigerant flow in the pipe 6, 7, 8 and 9 are depend on ON/OFF of the SV3, 4, 5 and 6. Please confirm by LED monitor display. You can open the cap of valve A, B and C, but 3 types of hexagon socket screw keys. The size is as follows. Closed torque : A : 0.17N·m B : 2.0N·m C : 1.3N·m...
Page 90 Inverter a. Replace only the compressor if only the compressor is found to be defective. (Overcurrent will flow through the inverter if the compressor is damaged, however, the power supply is automati- cally cut when overcurrent is detected, protecting the inverter from damage.) b.
Page 91 Treatment of Inverter Output Related Troubles Check item Phenomena Treatment 1 IPM/overcurrent error. Perform the following: · Replace INV board. 1Disconnect INV board Check the (4250 detailed No. 101, 102, 103, INV board CNDR2. After removing, turn 104, 105, 106, 107) error on the outdoor unit and check 2 ACCT sensor circuit error.
Page 92 Check item Phenomena Treatment 1Screw terminal is loose. 1Check to see if the IPM screw · Check all IPM screw terminals and tighten. Check the in- terminal is loose. verter circuit 2IPM is cracked due to swelling. 2Check the exterior of the IPM. trouble.
Page 93 Simple Checking Procedure for Individual Components of Main Inverter Circuit Part name Judgement method Diode Stack Refer to "Determining Diode Stack Troubleshooting" (VII-¢-5-(6)) Refer to "Determining IPM interference" (VII-¢-5-(5)) (Intelligent Power Module) Rush current protection resistor Measure the resistance between terminals: 47Ω±10% R1, R5 Electromagnetic contactor (52C) Measure the resistance value at each terminal.
Page 94 5) Intelligent Power Module (IPM) Measure resistances between each terminal of IPM with tester, and use the results for troubleshooting. Focus on whether there is a complete open (∞Ω) state or short-circuit (~0Ω). The measured resistance value is a guideline and may deviate slightly. Measure between several similar measurement points.
Page 95 7) Caution at replacement of inverter parts Fully check wiring for incorrect and loose connection. The incorrect or loose connection of the power circuit part wiring like IPM and diode module causes to damage the IPM. Therefore, check the wiring fully. As the insufficient tightening of screws is difficult to find, tighten them together additionally after finishing other works.
Page 96 [2] Trouble and remedy of remote controller (In the case of MA remote controller) Phenomena Factors Check method and handling If pushing the remote 1) Power supply from transformers is not turned on in a) Check the MA remote control terminal control operation SW Indoor Unit.
Page 97 Phenomena Factors When the remote 1) Power supply from the transformer is not available to the control board of BC controller. 1 The original power supply of the BC controller is not turned on. control SW is turned 2 Removal of connectors (CN12, CN38, CNTR) on the control board of the BC controller. on, the indication 3 Fuse on the control board of the BC controller is blown.
Page 98 Phenomena Factors “HO” indication on 1) The M-NET transmission power supply form the the remote controller outdoor unit is not supplied. 1 The original power supply of Indoor Unit is not is not lit, and the ON/OFF switch does turned on. 2 The connector on the controller board in Indoor not work.
Page 99 (In the case of M-NET remote controller) Symptom Cause Checking method & countermeasure Despite pressing of 1) M-NET transmission power source is not supplied a) Check transmission terminal block of remote controller from outdoor unit. remote controller for voltage. 1 Main power source of outdoor unit is not ON/OFF switch, i) In case of 17 ~ 30V operation does not...
Page 100 Symptom Cause “HO” display on re- (Without using MELANS) mote controller does 1) Outdoor unit address is set to “00” not disappear and 2) Erroneous address. 1 Address setting of indoor unit to be coupled with remote controller incorrect. ON/OFF switch is ineffective.
Page 101 Symptom Cause Checking method & countermeasure “88” appears on re- [Generates at registration and confirmation] a) Confirm the address of unit to be mote controller at 1) Erroneous address of unit to be coupled. coupled. registration and 2) Disconnection of transmission line of unit to be b) Check the connection of transmission access remote line.
Page 102 Transmission Power Circuit (30 V) Check Procedure If “ ” is not displayed by the remote control, investigate the points of the trouble by the following procedure and correct it. Check Item Judgment Response Disconnect the transmission line from TB3 DC24~30 V Check the transmission line for the following, and and check the TB3 voltage.
Page 103 [3] Investigation of transmission wave shape/noise (1) M-NET transmission Control is perf ormed by exchanging signals between outdoor unit, indoor unit and remote controller by M-NET transmission. If noise should enter into the transmission line, the normal transmission will be hindered causing erroneous operation.
Page 104 3) Checking and measures to be taken (a) Measures against noise Check the items below when noise can be confirmed on wave shape or the error code in the item 1) is generated. Items to be checked Measures to be taken 1 Wiring of transmission and power lines in Isolate transmission line from power line (5cm or more).
Page 105 (2) MA remote control transmission The MA remote control and indoor unit communicate with the current tone burst method. 1) Symptoms caused by infiltration of noise on transmission cable If noise, etc., infiltrates the transmission cable and the communication between the MA remote control and indoor unit is cut off for three consecutive minutes, a MA communication error (6831) will occur.
Page 106 4) Treatment of Fan Motor Related Troubles Condition Possible Cause Check Method and Treatment 1 It won’t run for 20 minutes 1) The power supply voltage If there is an open phase condition before the breaker, after or longer when the AK is abnormal.
Page 107 [4] Troubleshooting the major components of the BC controller 1) Pressure sensor Pressure sensor troubleshooting flow START Note 1 Check pressure sensor, PS1, PS3, connectors for discon- nection, looseness, or incor- rect attachment. Take corrective action. Unit running? Note 2 Check on the LED monitor dis- play.
Page 108 Note 1 : • Symptoms of incorrect connection of BC controller pressure sensor to the board Symptom Cooling-only Cooling-principal Heating-only Heating-principal Insufficient SC11 large Warm indoor SC SC11 small Insufficient heating SC11 large cooling. SC16 small small. Warm in- SC16 small Warm indoor SC small SC16 small Normal...
Page 109 2) Temperature Sensor Thermistor troubleshooting flow Start Note 1 Disconnect applicable thermistor connector from the board. Note 2 Measure temperature of applicable thermistor (actual measured value). Note 3 Check thermistor resistance value. Compare temperature for thermistor resistance value with actual mea- sured valued.
Page 110 Note 1 : • Board connector CN10 corresponds to TH11, 12 while connector CN11 corresponds to TH15 through TS15. Remove the applicable connector and check the sensor for each number. Note 2, 3 : 1. Pull the sensor connector from the I/O board. Do not pull on the lead wire. 2.
Page 111 3) LEV, Solenoid Valve Troubleshooting Flow No cooling No heating Note 1 Check disconnection or looseness of connectors. Is there a problem? Correct the problem. Operate in cooling or heating (1 system only when there are plural systems) Heating operation Cooling or heating operation? Note 2...
Page 112 1 LEV Note 1 : • Symptoms of incorrect connection to BC controller LEV board LEV No. Cooling-only Cooling-main Heating-only Heating-main Normal Insufficient cooling Insufficient cooling, insuf- Heating indoor SC small Insufficient cooling SH12 small, ficient heating PHM large Heating indoor SC small SC11 small SH12 small, SC11 small PHM large...
Page 113 (Self-diagnostic monitor) Measured Data Signal OUTDOOR MAIN board SW1 Setting 2 3 4 5 6 7 8 9 10 – LEV1 pulse 2 3 4 5 6 7 8 9 10 – LEV 3 pulse BC controller bypass 2 3 4 5 6 7 8 9 10 SH12 output superheat BC controller...
Page 114 2 Solenoid Valve Solenoid valve troubleshooting Operation OFF? Check solenoid valve wiring for incorrect connection, and connector disconnection or looseness. No problem. Correct the problem. Operate cooler and heater for the applicable solenoid valve’s refrigerant system only. Note 1 Clicking noise produced when working timing? Remove the coil and check for...
Page 115 Solenoid valves (SVA, SVB, SVC) Coordination signals output from the board and solenoid valve operations. Note 1 : (SVA, SVB, SVC) SVA, SVB and SVC are turned on and off in accordance with operation mode. Mode Cooling Heating Stopped Defrosting Branch port Note 2 : (SVA, SVB, SVC) Measure temperature of piping on either side of SVA 1-A...
Page 116: Bc Controller Disassembly Procedure
BC Controller Disassembly Procedure (1) Service panel Be careful on removing heavy parts. Procedure Illustrations 1. Remove the two screws securing the electric panel box. Loosen the two screws securing the electric panel Ceiling panel Loosen only Front panel box, and then remove the box. 2.
Page 117 (3) Thermistor (Liquid and gas piping temperature detection) Be careful when removing heavy parts. Procedure Photos 1. Remove the front panel 1 Use the procedure under (1)-1.2.3 to check TH11, TH12, TH15, and TH16. 2. Disconnect the piping sensor lead from the control- TH16 ler panel.
Page 118 (5) LEV Be careful on removing heavy parts. Procedure Photos 1. Remove the service panel. See (1)-1.2.3 LEV3 2. Replace the applicable LEV. Important! 1 When performing the above procedure, be sure to allow for enough service space in the ceiling area LEV1 for welding.
Page 119: Self-Diagnosis And Countermeasures Depending On The Check Code Displayed 1
Self-diagnosis and countermeasures depending on the check code displayed Check Code List Check Code Check Content 0403 Serial transmission abnormality 0900 Test run (ventilation) 1102 Discharge temperature abnormality 1111 Low pressure saturation temperature sensor abnormality (TH2) 1301 Low pressure abnormality (OC) 1302 High pressure abnormality (OC) 1368...
Page 120 Check Code Check Content 6606 Communications with transmission processor abnormality 6607 No ACK abnormality 6608 No response abnor mality 6831 MA Communication no reception error 6832 MA Communication synchronization recovery error 6833 MA Communication transmission/reception hardware error 6834 MA Communication start bit error 7100 Total capacity abnormality 7101...
Page 121 (1) Mechanical Checking code Meaning, detecting method Cause Checking method & Countermeasure 0403 Serial If serial transmission cannot be 1) Wiring is defective. Check 1, the connections, 2, contact transmission established between the MAIN and at the connectors and 3, for broken abnormality INV boards.
Page 122 Checking code Meaning, detecting method Cause Checking method & Countermeasure 1102 Discharge 1. When 110˚C for 8HP and 120°C 1) Gas leak, gas shortage. See Refrigerant amount check. temperature for 10HP or more discharge abnormality 2) Overload operations. Check operating conditions and opera- temper ature is detected during (Outdoor unit)
Page 123 Checking code Meaning, detecting method Cause Checking method & Countermeasure 1111 1. When saturation temperature 1) Gas leak, Gas shortage. See Refrigerant amount check. pressure sensor (TH2) detects -40˚C or saturation 2) Insufficient load operations. Check operating conditions and opera- less (the first time) during op- tempera- tion status of outdoor unit.
Page 124 Checking code Meaning, detecting method Cause Checking method & Countermeasure 1301 Low pressure When starting from the stop mode 1) Internal pressure is dropping due Refer to the item on judging low pres- abnoramlity for the first time, (if at the start of bind to a gas leak.
Page 125 Checking code Meaning, detecting method Cause Checking method & Countermeasure 1302 High pressure When press. sensor detects 1) Fall in internal press. caused by See Trouble check of pressure sen- abnoramlity 2 0.098MPa or less just before gas leak. sor. (Outdoor unit) starting of operation, erro stop 2) Press.
Page 126 Checking code Meaning, detecting method Cause Checking method If the discharge SH ≤ 10K is 1500 Overcharged – 1) Excessive refrigerant charge. Refer to the section on judging the detected during operation (at refrigerant refrigerant volume. first detection), the outdoor abnormality unit stops at once.
Page 127 Checking code Meaning, detecting method Cause Checking method & Countermeasure 2500 Leakage (water) When drain sensor detects flood- 1) Water leak due to humidifier or the Check water leaking of humidifier abnormality ing during drain pump OFF. like in trouble. and clogging of drain pan.
Page 128 Checking code Meaning, detecting method Cause Checking method & Countermeasure 4103 Reverse phase Reverse phase (or open phase) in 1) The phases of the power supply (L1, If there is reverse phase before the abnormality the power system is being de- L2, L3) have been reversed.
Page 129 Checking code Meaning, detecting method Cause Checking method & Countermeasure 4116 Fan speed (Detects only for PKFY-VAM) 1) Disconnection of fan speed detect- • Confirm disconnection of connector abnormality 1. Detecting fan speed below ing connector (CN33) of indoor (CN33) on indoor controller (motor 180rpm or over 2000rpm dur- controller board.
Page 130 Checking code Meaning, detection procedure Cause Check method & Countermeasure If Vdc 289V is detected 1) Power environment Check if an instantaneous stop 4220 Bus voltage drop protection during inverter operation. or power failure, etc. has (Error details No. 108.) occurred.
Page 131 Checking code Meaning, detection procedure Cause Check method & Countermeasure If the cooling fan stays ON 1) Power supply environ- Check the power supply volt- 4230 Heat sink overheat protec- for 5 minutes or longer dur- ment age. Ensure that the power tion ing inverter operation, and supply voltage...
Page 132 Checking code Meaning, detection procedure Cause Check method & Countermeasure VII ¢ 5 (2) inverter output IPM error signal detected 1) Inverter output related 4250 IPM error related trouble processing (Error details No. 101) Refer to [1] - [5]. 2) Same as 4230 error Same as 4230 error 1) Inverter output related ¶...
Page 133 Checking code Meaning, detecting method Cause Checking method & Countermeasure 5101 Discharge <Other than THHS> 1) Thermistor Check the thermistor’s resistance. 1 A short in the thermistor or an (TH1) open circuit was sensed. The 2) Lead wires are being pinched. Check if the lead wires are pinched.
Page 134 Checking code Meaning, detecting method Cause Checking method & Countermeasure 1 When pressue sensor detects 5201 Pressure 1) Pressutre sensor trouble. See Troubleshooting of pressure sensor 0.098MPa or less during operation, sensor. abnormality outdoor unit once stops with 3 (outdoor unit) minutes restarting mode, and 2) Inner pressure drop due to a leak- restarts if the detected pressure of...
Page 135 Checking code Meaning, detecting method Cause Checking method & Countermeasure An abnormal value was de- 1) Contact is faulty. Check the contacts around the INV board DCCT sensor 5301 tected with the DCCT detec- connector CNCT and DCCT side connector circuit error tion circuit just before the INV (Error details...
Page 136 (2) Communication/system Checking Meaning, detecting method Cause Checking method & Countermeasure code 1) Two or more controllers of outdoor At the genration of 6600 error, release the error by 6600 Multiple address error unit, indoor unit, remote controller, remote controller (with stop key) and start again. BC controller, etc.
Page 137 Checking Meaning, detecting method Cause Checking method & Countermeasure code 6602 Transmission processor hardware Checking method and processing error Transmission line Shut off the power source of outdoor/in- installed while turning door units/BC controller and make it again. power source on? Check power source of indoor unit.
Page 138 Checking Meaning, detecting method Cause Checking method & Countermeasure code 6606 Communications with transmis- 1) Data is not properly transmitted due Turn off power sources of indoor unit, BC controller sion processor error to casual errouneous operation of and outdoor unit. the generating controller.
Page 139 Checking Meaning, detecting method code 6607 No ACK error When no ACK signal is detected in 6 continuous times with 30 second (continued) interval by transmission side controller, the transmission side detects error. Note: The address/attribute shown on remote controller indicates the controller not providing the answer (ACK).
Page 140 Checking Meaning, detecting method code 6607 No ACK error When no ACK signal is detected in 6 continuous times with 30 second (continued) interval by transmission side controller, the transmission side detects error. Note: The address/attribute shown on remote controller indicates the controller not providing the answer (ACK).
Page 141 Checking Meaning, detecting method code 6607 No ACK error When no ACK signal is detected in 6 continuous times with 30 second (continued) interval by transmission side controller, the transmission side detects error. Note: The address/attribute shown on remote controller indicates the controller not providing the answer (ACK).
Page 142 (3) System error Checking Meaning, detecting method Cause Checking method & Countermeasure code 7100 Total capacity error 1) Total capacity of indoor units in the a) Check for the model total (capacity cord total) of same refrigerant system exceeds indoor units connected. Total capacity of indoor units in the following: b) Check whether indoor unit capacity code (SW2)
Page 143 Checking Meaning, detecting method Cause Checking method & Countermeasure code 7107 Connection No. setting error 1) Indoor unit capacity per connector a) Check indoor unit connection No. in refrigerant Can not operate because connec- joint is exceeded as follows: circuit. 1 No four or more indoor units which are set tion No.
Page 144: Led Monitor Display
[4] LED Monitor Display (1) How to read LED for service monitor By setting of DIP SW1-1 ~ 1-8, the unit operating condition can be observed with the service LED on the control circuit board. (For the relation of each DIP SW to the content, see the table provided.) As shown in the figure below, the LED consist of 7 segments is put in 4 sets side by side for numerical and graphic display.
Page 145 Time data holding function This function is not compatible with some units. The outdoor unit has a simple clock function to receive the time setting from the system controller, such as the G-50, and count the current time with an internal timer. If an error (prediction) occurs, the error history data and the error detection time are saved in the service memory.
Page 146 1PU(H)Y-(P)200·250·315 No SW Item Remarks LD8 is a relay output which 1 2 3 4 5 6 7 8 9 0 lights up at all times when Lights for 0 0 0 0 0 0 0 0 0 0 0 Relay output display 1 Compressor Compressor the micro computers power...
Page 147 No SW Item Remarks Corresponding flag 1 2 3 4 5 6 7 8 9 0 lights during Excessive Configuration error delay Oil temperature 27 1 1 0 1 1 0 0 0 0 0 refrigerant detection error error charge 28 0 0 1 1 1 0 0 0 0 0 29 1 0 1 1 1 0 0 0 0 0 30 0 1 1 1 1 0 0 0 0 0...
Page 148 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 59 1 1 0 1 1 1 0 0 0 0 Type of inverter preliminary Error .(Details of the inverter 0101~0121 error in 33) -99.9~999.9 60 0 0 1 1 1 1 0 0 0 0 TH1 61 1 0 1 1 1 1 0 0 0 0 62 0 1 1 1 1 1 0 0 0 0 -99.9~999.9...
Page 149 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 103 1 1 1 0 0 1 1 0 0 0 104 0 0 0 1 0 1 1 0 0 0 0000~9999 105 1 0 0 1 0 1 1 0 0 0 LEV1 106 0 1 0 1 0 1 1 0 0 0 107 1 1 0 1 0 1 1 0 0 0 108 0 0 1 1 0 1 1 0 0 0 FACON output value...
Page 150 When there is an error stop with No164~221, the data on error stops or the data immediately before the error postponement stop, which is stored in service memory, are displayed. No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 141 1 0 1 1 0 0 0 1 0 0 142 0 1 1 1 0 0 0 1 0 0 143 1 1 1 1 0 0 0 1 0 0...
Page 151 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 175 1 1 1 1 0 1 0 1 0 0 -99.9~999.9 176 0 0 0 0 1 1 0 1 0 0 177 1 0 0 0 1 1 0 1 0 0 178 0 1 0 0 1 1 0 1 0 0 -99.9~999.9 179 1 1 0 0 1 1 0 1 0 0...
Page 152 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 214 0 1 1 0 1 0 1 1 0 0 215 1 1 1 0 1 0 1 1 0 0 216 0 0 0 1 1 0 1 1 0 0 FANCON output 0000~9999 value (Toff%) 217 1 0 0 1 1 0 1 1 0 0...
Page 153 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 252 0 0 1 1 1 1 1 1 0 0 253 1 0 1 1 1 1 1 1 0 0 254 0 1 1 1 1 1 1 1 0 0 255 1 1 1 1 1 1 1 1 0 0 256 0 0 0 0 0 0 0 0 1 0 257 1 0 0 0 0 0 0 0 1 0...
Page 154 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 291 1 1 0 0 0 1 0 0 1 0 IC 2 gas pipe -99.9~999.9 292 0 0 1 0 0 1 0 0 1 0 IC 3 gas pipe 293 1 0 1 0 0 1 0 0 1 0 IC 4 gas pipe 294 0 1 1 0 0 1 0 0 1 0 IC 5 gas pipe 295 1 1 1 0 0 1 0 0 1 0 IC 6 gas pipe...
Page 155 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 329 1 0 0 1 0 0 1 0 1 0 IC 8 SH -99.9~999.9 330 0 1 0 1 0 0 1 0 1 0 IC 9 SH 331 1 1 0 1 0 0 1 0 1 0 IC 10 SH 332 0 0 1 1 0 0 1 0 1 0 IC 11 SH 333 1 0 1 1 0 0 1 0 1 0 IC 12 SH...
Page 156 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 367 1 1 1 1 0 1 1 0 1 0 IC 14 SC -99.9~999.9 368 0 0 0 0 1 1 1 0 1 0 IC 15 SC 369 1 0 0 0 1 1 1 0 1 0 IC 16 SC 370 0 1 0 0 1 1 1 0 1 0 371 1 1 0 0 1 1 1 0 1 0...
Page 157 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 405 1 0 1 0 1 0 0 1 1 0 406 0 1 1 0 1 0 0 1 1 0 407 1 1 1 0 1 0 0 1 1 0 408 0 0 0 1 1 0 0 1 1 0 409 1 0 0 1 1 0 0 1 1 0 410 0 1 0 1 1 0 0 1 1 0...
Page 158 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 443 1 1 0 1 1 1 0 1 1 0 444 0 0 1 1 1 1 0 1 1 0 445 1 0 1 1 1 1 0 1 1 0 446 0 1 1 1 1 1 0 1 1 0 447 1 1 1 1 1 1 0 1 1 0 448 0 0 0 0 0 0 1 1 1 0...
Page 159 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 481 1 0 0 0 0 1 1 1 1 0 482 0 1 0 0 0 1 1 1 1 0 483 1 1 0 0 0 1 1 1 1 0 484 0 0 1 0 0 1 1 1 1 0 485 1 0 1 0 0 1 1 1 1 0 486 0 1 1 0 0 1 1 1 1 0...
Page 160 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 W phase current 521 1 0 0 1 0 0 0 0 0 1 -99.9~999.9 effective value 1 Power factor 522 0 1 0 1 0 0 0 0 0 1 phase angle 1(deg) 523 1 1 0 1 0 0 0 0 0 1 524 0 0 1 1 0 0 0 0 0 1...
Page 161 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 Error detection day 5 Display alternatly 560 0 0 0 0 1 1 0 0 0 1 Year/Month Hour: Minute 561 1 0 0 0 1 1 0 0 0 1 Error detection time 6 Display alternatly 562 0 1 0 0 1 1 0 0 0 1 Error detection day 6...
Page 162 2PURY-P200·250 No SW Item Remarks LD8 is a relay which 1 2 3 4 5 6 7 8 9 0 lights up at all times when the 52C1 Lights for 0 0 0 0 0 0 0 0 0 0 0 Relay output display 1 Compressor microcomputers (Incompatible...
Page 163 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 Excessive Configuration Oil temperature 27 1 1 0 1 1 0 0 0 0 0 refrigerant detection error error charge 28 0 0 1 1 1 0 0 0 0 0 29 1 0 1 1 1 0 0 0 0 0 30 0 1 1 1 1 0 0 0 0 0 Corresponding flag...
Page 164 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 59 1 1 0 1 1 1 0 0 0 0 Type of inverter preliminary Error. (Details of the inverter ".." is always 0101~0121 error in 33) written if there is no error.
Page 165 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 103 1 1 1 0 0 1 1 0 0 0 104 0 0 0 1 0 1 1 0 0 0 105 1 0 0 1 0 1 1 0 0 0 LEV1 0000~9999 106 0 1 0 1 0 1 1 0 0 0 107 1 1 0 1 0 1 1 0 0 0...
Page 166 When there is an error stop with No164~221, the data on error stops or the data immediately before the error postponement stop, which is stored in service memory, are displayed. No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 141 1 0 1 1 0 0 0 1 0 0 142 0 1 1 1 0 0 0 1 0 0 143 1 1 1 1 0 0 0 1 0 0...
Page 167 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 176 0 0 0 0 1 1 0 1 0 0 -99.9~999.9 177 1 0 0 0 1 1 0 1 0 0 -99.9~999.9 178 0 1 0 0 1 1 0 1 0 0 179 1 1 0 0 1 1 0 1 0 0 180 0 0 1 0 1 1 0 1 0 0 181 1 0 1 0 1 1 0 1 0 0...
Page 168 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 3 minutes restart 3 minutes restart Vacuum operation BC operstion Compressor 214 0 1 1 0 1 0 1 1 0 0 BC operation display Preliminary Warm up protection after i n stantaneous...
Page 169 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 252 0 0 1 1 1 1 1 1 0 0 253 1 0 1 1 1 1 1 1 0 0 254 0 1 1 1 1 1 1 1 0 0 255 1 1 1 1 1 1 1 1 0 0 256 0 0 0 0 0 0 0 0 1 0 257 1 0 0 0 0 0 0 0 1 0...
Page 170 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 290 0 1 0 0 0 1 0 0 1 0 IC 1 gas pipe -99.9~999.9 291 1 1 0 0 0 1 0 0 1 0 IC 2 gas pipe 292 0 0 1 0 0 1 0 0 1 0 IC 3 gas pipe 293 1 0 1 0 0 1 0 0 1 0 IC 4 gas pipe 294 0 1 1 0 0 1 0 0 1 0 IC 5 gas pipe...
Page 171 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 328 0 0 0 1 0 0 1 0 1 0 IC 7 SH -99.9~999.9 329 1 0 0 1 0 0 1 0 1 0 IC 8 SH 330 0 1 0 1 0 0 1 0 1 0 IC 9 SH 331 1 1 0 1 0 0 1 0 1 0 IC 10 SH 332 0 0 1 1 0 0 1 0 1 0 IC 11 SH...
Page 172 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 366 0 1 1 1 0 1 1 0 1 0 IC 13 SC -99.9~999.9 367 1 1 1 1 0 1 1 0 1 0 IC 14 SC 368 0 0 0 0 1 1 1 0 1 0 IC 15 SC 369 1 0 0 0 1 1 1 0 1 0 IC 16 SC 370 0 1 0 0 1 1 1 0 1 0...
Page 173 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 404 0 0 1 0 1 0 0 1 1 0 405 1 0 1 0 1 0 0 1 1 0 406 0 1 1 0 1 0 0 1 1 0 407 1 1 1 0 1 0 0 1 1 0 408 0 0 0 1 1 0 0 1 1 0 409 1 0 0 1 1 0 0 1 1 0...
Page 174 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 442 0 1 0 1 1 1 0 1 1 0 443 1 1 0 1 1 1 0 1 1 0 00 : OFF Operation mode is 444 0 0 1 1 1 1 0 1 1 0 displayed on left 01 : Fan...
Page 175 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 480 0 0 0 0 0 1 1 1 1 0 481 1 0 0 0 0 1 1 1 1 0 482 0 1 0 0 0 1 1 1 1 0 -99.9~999.9 483 1 1 0 0 0 1 1 1 1 0 BC TH11...
Page 176 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 U phase current -99.9~999.9 520 0 0 0 1 0 0 0 0 0 1 effective value 1 W phase current 521 1 0 0 1 0 0 0 0 0 1 effective value 1 Power factor 522 0 1 0 1 0 0 0 0 0 1...
Page 177 No SW Item Remarks 1 2 3 4 5 6 7 8 9 0 559 1 1 1 1 0 1 0 0 0 1 Error detection time 5 Hour: Minute Display alternatly 560 0 0 0 0 1 1 0 0 0 1 Error detection time 5-2 Year/Month 561 1 0 0 0 1 1 0 0 0 1 Error detection time 6 Hour: Minute...
Page 178: Preparation, Repairs And Refrigerant Refilling When Repairing Leaks
• PREPARATION, REPAIRS AND REFRIGERANT REFILLING WHEN REPAIRING LEAKS Location of leaks: Extension piping or indoor units (when cooling) Attach a pressure gage to the low-pressure servicing check joint (CJ2). Stop all of the indoor units. When the compressor has stopped, shut off the liquid ball valve (BV2) for the outdoor unit.
Page 179: Location Of Leaks: Extension Piping Or Indoor Units (Heating Mode)
Check the Tc and TH7 data (PUHY-(P)200·250·315). (The self-diagnosis switch (SW1) on the MAIIN board of the outdoor unit can be used to display this data on the LED.) 1. If Tc – TH7 is 10 degrees or more ... Continue to step 2.
Page 180: Location Of Leaks: Outdoor Unit (When Heating)
[4] Location of leaks: Outdoor unit (when heating) Remove any refrigerant from the entire system (outdoor unit, extension piping and indoor units). Reclaim the refrigerant; do not discharge it into the air. Repair the leaks. After the leaks are repaired, extract all of the air from the entire system to create a vacuum. Then, refill with refrigerant until it reaches the calculated specification (outdoor unit + extension §...
Page 181: ª Check The Composition Of The Refrigerant
ª CHECK THE COMPOSITION OF THE REFRIGERANT(R407C unit only) Start Test run all indoor units. Are all units operating stably? (Note 1) Is the refrigerant composition of OC correct? (Note 2) Check TH2, LPS and the CS Finished checking the circuit block and correct any malfunc- composition.
Page 182 Note 1 Wait until the units stabilize as described in the refrigerant amount adjustment procedure in “Chapter § ”. Note 2 After the units are operating stably, check that the refrigerant composition of OC is within the following ranges, indicating that the composition check is finished. If the accumulator liquid level AL = 0 when cooling: OC = 0.20 ~ 0.26 If the accumulator liquid level AL = 1 when cooling:...
Page 183 Service Handbook PUHY-P200YEM-A, P250YEM-A, P315YEM-A PUY-P200YEM-A, P250YEM-A, P315YEM-A PURY-P200YEM-A, P250YEM-A CMB-P104, P105, P106, P108, P1010, P1013, P1016V-F PUHY-200YEM-A, 250YEM-A, 315YEM-A PUY-200YEM-A, 250YEM-A, 315YEM-A PUHY-250YEMK-A, 315YEMK-A PUHY-200YEMC-A, 250YEMC-A, 315YEMC-A HEAD OFFICE MITSUBISHI DENKI BLDG. MARUNOUCHI TOKYO 100-0005 TELEX J24532 CABLE MELCO TOKYO Issued in January 2004 MEE03K192 New publication effective January 2004 Printed in Japan...

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Mitsubishi Electric CITY MULTI PUHY-P200YEM-A Service Handbook

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