2
5. Dip Switch setting
5.4 Operation setting
Set Dip SW 1-8 to set whether the system has a wireless remote controller.
Dip SW 1-
Setting
OFF
WITHOUT wireless remote controller
ON
WITH wireless remote controller
Set Dip SW 2-1 to set the room thermostat 1 input (IN1) logic.
Dip SW 2-1
Setting
OFF
Operation stop at thermostat short
ON
Operation stop at thermostat open
Set Dip SW 2-2 to set the flow switch 1 input (IN2) logic.
Dip SW 2-2
Setting
OFF
Failure detection at short
ON
Failure detection at open
Set Dip SW 2-3 to set the restriction on the capacity of booster heater.
Dip SW 2-3
Setting
OFF
Inactive
ON
Active
When Dip SW 2-3 is ON, booster heater 2 and 2+ operation is not available. (Only booster heater 1 is available)
Notes:
1
When installing one booster heater, use OUT6 (Booster Heater 1) and switch SW2-3 to ON.
2
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. Or, make the sum of the capacities of OUT7 (Booster heater 2) and OUT8 (Booster 2+) greater than the capacity of OUT6 (Booster 1).
Reference: Summary of Booster heater control
The booster heater is controlled in the following three steps.
Booster heater 1
(OUT6)
Booster heater 2
(OUT7)
Booster heater 2+
(OUT8)
OFF
OFF
OFF
OFF
ON
STEP 1
ON
OFF
OFF
STEP 2
OFF
ON
ON
STEP 3
ON
ON
ON
Set Dip SW 2-4 to set activate or deactivate cooling mode.
Dip SW 2-4
Setting
OFF
Inactive
ON
Active
When Dip SW 2-4 is OFF, cooling mode is not available.
Set Dip SW 2-5 to set the automatic switch to backup heater only operation. (When outdoor unit stops by error.)
Dip SW 2-5
Setting
OFF
Inactive
ON
Active
Set Dip SW 3-1 to set the room thermostat 2 input (IN6) logic.
Dip SW 3-1
Setting
OFF
Operation stop at thermostat short
ON
Operation stop at thermostat open
Set Dip SW 3-2 to set the flow switch 2 input (IN3) logic.
Dip SW 3-2
Setting
OFF
Operation stop at thermostat short
ON
Operation stop at thermostat open
Set Dip SW 3-3 to set the flow switch 3 input (IN7) logic.
Dip SW 3-3
Setting
OFF
Operation stop at thermostat short
ON
Operation stop at thermostat open
Set Dip SW3-4 whether to make cooling operation in Zone 2 available.
Dip SW 3-4
Setting
OFF
Not in use
ON
In use
When Dip SW3-4 is set to OFF, cooling operation in Zone 2 is not available.
Set Dip SW 3-5 to set activate or deactivate heating mode.
Dip SW 3-5
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.
Controlled to this extent when SW2-3 is ON.
Output synchronised with Booster heater 2
