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5. DIP switch setting
5.4 Operation setting
Set DIP SW1-8 to set whether the system has a wireless remote controller.
DIP SW1-8 Setting
OFF WITHOUT wireless remote controller
ON WITH wireless remote controller
Set DIP SW2-1 to set the room thermostat 1 input (IN1) logic.
DIP SW2-1 Setting
OFF Operation stop at thermostat short
ON Operation stop at thermostat open
Set DIP SW2-2 to set the ow switch 1 input (IN2) logic.
DIP SW2-2 Setting
OFF Failure detection at short
ON Failure detection at open
Set DIP SW2-3 to set the restriction on the capacity of booster heater.
DIP SW2-3 Setting
OFF Inactive
ON Active
When DIP SW2-3 is ON, booster heater 2 operation is not available. (Only booster heater 1 is available.)
Notes: When installing one booster heater, use OUT6 (Booster Heater 1) and switch SW2-3 to ON.
When installing two booster heaters, use OUT6 (Booster Heater 1) and OUT7 (Booster heater 2). In such cases, use OUT7 (Booster heater 2) to connect the one
with higher capacity.
Reference: Summary of booster heater control
The booster heater is controlled in the following three steps.
Booster heater 1
(OUT6)
Booster heater 2
(OUT7)
OFF OFF OFF
ON
STEP 1 ON OFF
STEP 2 OFF ON
STEP 3 ON ON
Set DIP SW2-4 to activate or deactivate cooling mode.
DIP SW2-4 Setting
OFF Inactive
ON Active
When DIP SW2-4 is OFF, cooling mode is not available.
Set DIP SW2-5 to set the automatic switch to backup heater only operation. (When outdoor unit stops by error.)
DIP SW2-5 Setting
OFF Inactive
ON Active
Set DIP SW3-1 to set the room thermostat 2 input (IN6) logic.
DIP SW3-1 Setting
OFF Operation stop at thermostat short
ON Operation stop at thermostat open
Set DIP SW3-2 to set the ow switch 2 and 3 input logic.
DIP SW3-2 Setting
OFF Operation stop at thermostat short
ON Operation stop at thermostat open
Set DIP SW3-5 to activate or deactivate heating mode.
DIP SW3-5 Setting
OFF Inactive
ON Active
When the connected outdoor unit is not of PUHZ-FRP model, heating mode is always active regardless of DIP SW3-5 setting.
Set DIP SW4-4 to activate or deactivate indoor unit only operation.
DIP SW4-4 Setting
OFF Inactive
ON Active
Controlled to this extent when SW2-3 is ON.
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