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1
Type F1
EXTERNAL STATIC PRESSURE SETTING
For low silhouette ducted type indoor units, the ventilating resistance so-called "external static pressure" becomes greatly different
depending on the connected duct length, shape, number of air outlet ports and types of filters.
When installing this unit, be sure to carry out the external static pressure setting in order to operate in the rated airflow volume.
Choose one of the following methods from "a", "b", "c" or "d" as shown in the flow chart (within the dotted lines) and then make the
setting accordingly.
a. No setting modification............................................................ : Use-as-is at shipment (there are cases in which the setting may differ
b. Manual setting (set with the PC board) ................................... : For high static pressure. Switching method with the short-circuit
c. Manual setting (set with the wired remote controller) ............. : Low static pressure ~ high static pressure
d. Auto airflow volume setting (set on the wired remote controller) .... : Air outlet volume is automatically adjusted to the rated airflow volume
Flow of External Static Pressure
Start external static pressure setting
Line
8
shipment) on the PQ diagram
designed and installed
a. No setting modification
Operation checks for external static pressure settings (*Note (2))
Refer to section "1-7-2. or 1-7-3.".
Check if the setting is within the range of use on the PQ diagram.
If out of range, adjust until it becomes within the range of use.
This can be omitted if deemed unnecessary in the event of the same installation/set-up being available.
NOTE
(1) Check the following items before performing the setting-check operations or auto airflow volume operations.
1) Check to make sure that the electrical wiring and ducting have been completed. Activate the stand-by mode. In particular, make
sure that the closed damper located in the middle of the duct is open, if installed. Also, make sure that air filters have been
installed inside the air inlet duct.
Check to make sure air is not leaking from the joints.
2) If multiple air outlets and air inlets are included, adjust the airflow volume ratio of all of them until they meet the design airflow ratio.
3) Make sure the address setting has been completed.
(2) The operation check will be completed in approximately three minutes if the settings have been made correctly. The settings will be
modified if they are out of the range of use (maximum 30 minutes.). If this is not completed within 31 minutes, check whether the air
speed is set to "H" or not.
(set at
No
Yes
No
b. Manual setting
(set with the PC board)
TP3 or TP1 short-circuit
Refer to section "1-7-1. How to
Set on PC Board".
Test operation display will disappear. (*Note (6))
External static pressure setting completed
from the shipment setting when reset after once setting the external
static pressure.)
connector.
with the auto airflow control drive.
Finish the ducting and electrical wiring and prepare it for use. (Note (1))
External static pressure should be set during initial operations after installation (before
the cooling and heating test run).
When operating with group control (connecting multiple indoor units with one wired
remote controller), make the low silhouette ducted type to the main unit.
Lines
and
15
14
settings (high static pressure) on
the PQ diagram required
Yes
Wired remote controller available
Yes
c. Manual setting
Item code "b0" : 0~15 setting
(*Note (3)) (* Note (4))
Refer to section "1-7-2. or 1-7-3.".
1-7-2
No
Set the rated airflow
No
volume with the exception of lines
,
and,
15
14
8
Yes
d. Auto airflow volume setting
(* Note (4)) Item code "b0" :
-2 setting
Refer to section "1-7-2. or 1-7-3.".
Auto airflow volume control
operations (*Note (5))
Refer to section "1-7-2. or 1-7-3.".
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