External Compressor Switch (Optional Pcb) - Panasonic WH-ADF0309J3E5CM Service Manual

14.21 External Compressor Switch (Optional PCB)

External compressor switch port can have two purpose of control as below:

Heat source ON/OFF function (Dip switch Pin 3 on PCB "OFF")

Heater ON/OFF function (Dip switch Pin 3 on PCB "ON")

Heat source ON/OFF function
Purpose:

Heat pump ON/OFF function is use to turn OFF the high power consumption device (Heat pump, & Heater) when
there is energy or electric current limitation. Other optional function still can be operate under heat pump and
heater OFF condition.
Control Detail:

This External Compressor Switch is possible to connect to Optional PCB only.

Once the remocon select External Compressor Switch connection "YES", & Dip Switch on PCB "OFF"
This heat pump ON/OFF function will activate

The ON/OFF signal of this External Compressor Switch is same as External Switch.

When the External Compressor Switch is ON:
Heat pump system operate normally
o

When the External Compressor Switch is OFF:
Heat pump, Indoor water pump & Heater ( Booster heater & Backup Heater ) need to turn OFF
o
Solar, Boiler and zone control can be operate follow normal control condition.
o
* pump delay OFF also included in this control
(There is NO pop up screen like External Switch when this External Compressor Switch is OFF.)

Heater ON/OFF function
Purpose:

Heater ON/OFF function is use to turn OFF the heater (backup heater & booster heater) when there is energy or
electric current limitation. Heat pump and other optional function still can operate.
Control detail:

This External Compressor Switch is possible to connect to Optional PCB only.

Once the remocon select External Compressor Switch connection "YES", & Dip Switch on PCB "ON"
This heater ON/OFF function will activate

When the External Compressor Switch is ON:
Heat pump and heater operate normally
o

When the External Compressor Switch is OFF:
Backup heater and booster heater cannot operate even heater request is ON.
o
Heat pump and option function (Solar, Boiler and zone control) can be operate follow normal control
o
condition.
(There is NO pop up screen like External Switch when this External Compressor Switch is OFF.)
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