External Off/On Control - Panasonic WH-SXC09F3E8 Service Manual

12.18 External OFF/ON Control


Communication circuit between indoor unit and external controller is as per below.

Maximum length of communication cable is 20 meter.

Control content:
External Control Switch
ON
ON
OFF
OFF
REMOTE
CONTROLLER
LED
REMOTE
CONTROLLER
SIGNAL
EXTERNAL
CONTROLLER
SWITCH
UNIT
* During External Switch OFF condition, it is allow to change the setting and also timer operation.
5V
12V
mico
Panasonic
PCB
Control Panel OFF/ON
ON
OFF
ON
OFF
AUTO
HEAT
COOL
TANK
HEATER
FORCE
OPERATION
ON
OFF
ON
ON
ON
OFF
1
2
CN-THERMO
Control Panel Power LED
ON
OFF
ON
OFF
MON TUE WED THU FRI SAT SUN
ON
OFF
During EXTERNAL SW OFF,
display "EXT SW OFF"
ON
OFF
OFF
85
External
Controller
System Status
ACTUAL
HEATER
hr
BOOSTER
°C
QUIET
kwh SETTING
hr
STATUS
°C
SERVICE
OFF
ON
OFF
OFF
OFF