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[ VII Troubleshooting ]
(2) SW3
Switch position
1
Unit type
2
3
4
5
6
7
8
9
10
7. Selecting the external static pressure
Four levels of external static pressure (0 Pa/10 Pa/40 Pa/60 Pa) are available for selection.
Set the setting either by using the switches on the control board (SW21-1, SW21-2, and SW21-5) or from the function selection
screen on the remote controller.
Note:
When the static pressure setting was set from the remote controller, the actual setting and the switch setting on the
control board may not match because the latest setting from the remote controller overrides the previous setting. To
check the latest static pressure setting, check it on the remote controller, not on the switch.
If the static pressure setting for the duct is lower than that for the unit, the fan of the unit may repeat start/stop, and
the outdoor unit may remain in a stopped state. Match the static pressure settings for the unit to that for the duct.
To set the external static pressure with the switches on the control board
External static pressure
0 Pa
10 Pa
40 Pa
60 Pa
To set the external static pressure from the function selection screen on the remote controller
Follow the instructions below and the instructions detailed in the remote controller manual for how to set the switches.
1. Set the function setting No. 32 (Switch setting/Function selection) to "2".
2. Set the function setting No. 8 and No. 10 to appropriate values, according to the external static pressure.
External static pressure setting
0 Pa
10 Pa
40 Pa
60 Pa
HWE18170
Function
Cooling only
-
-
-
-
-
-
-
-
-
SW21-1
SW21-2
OFF
ON
OFF
ON
OFF
OFF
ON
OFF
Function setting No.
No. 8
No. 10
1
2
1
1
2
1
3
1
- 19 -
Switch setting
ON
-
-
-
-
-
-
-
-
-
SW21-5
ON
OFF
OFF
OFF
Initial setting
Current setting
○
OFF
Heat pump
-
-
-
-
-
-
-
-
-
[Important]
Be sure to write down the
settings for all functions in
the "Current setting" row if
any of the initial settings has
been changed.
GB
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