External Compressor Switch (Optional Pcb) - Panasonic WH-MXC16J9E8 Service Manual

Remocon Screen Display and Control Detail:
REMOTE
CONTROLLER
LED
REMOTE
CONTROLLER
SIGNA
EXTERNA
CONTROLLER
SWITCH
UNIT
When External SW connection select "YES" from remocon installer menu:

Heating or Cooling system will operate normally if the External Switch signal is ON.

Once the External Switch turn OFF, System Turn OFF ( Heat pump, water pump, heater etc...)

Remocon LED remain ON or OFF according to the current operation request.

Pop up menu at remocon main screen as above screen to inform customer system stop by External Switch.

It is possible to press cancel and return to main screen to do change of operation setting while waiting the
External Switch turn ON back.

Remocon LED will always follow the latest changes from remocon.

If no action on remocon for continuous 5 minutes, the pop up screen will show again on the screen.

But once the External Switch Turn ON back, pop up screen will disappear and system can operate normally
according to the latest operation setting and request.

13.26 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.)
Turned off by external switch.
ON
OFF
ON
L
ON
L
ON
OFF
10:34am , Mon
1 2
40
23 44
CANCEL
c c
18
˚ ˚
ON
OFF
OFF
116
c
˚
c
˚
OFF