74
12.18 External OFF/ON Control
Communication circuit between indoor unit and external controller is as per below.
External
Controller
Panasonic
PCB
CN-THERMO
17
18
5V
12V_4
R25
1k
R23
10k
R1
1
4
2
3
ZD2
PC1
G2 G2
C30
0.01µ
16V
Maximum length of communication cable is 20 meter.
Control content:
External Control Switch
Control Panel OFF/ON
Control Panel Power LED
System Status
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
REMOTE
ON
ON
ON
ON
OFF
OFF
UNIT
OFF
OFF
OFF
ON
CONTROLLER
During EXTERNAL SW OFF,
display “EXT SW OFF”
LED
REMOTE
CONTROLLER
SIGNAL
EXTERNAL
CONTROLLER
SWITCH
OPERATION
ACTUAL
HEATER
BOOSTER
QUIET
SETTING
STATUS
SERVICE
AUTO
HEAT
COOL
TANK
HEATER
FORCE
°C
°C
ON
OFF
MON TUE WED THU
FRI
SAT SUN
hr
hr
kwh
* During External Switch OFF condition, it is allow to change the setting and also timer operation.
Summary of Contents for WH-MHF09G3E8
Page 32: ...32 10 1 2 Solar Printed Circuit Board Optional ...
Page 33: ...33 10 2 Refrigerant System 10 2 1 Main Printed Circuit Board ...
Page 34: ...34 10 2 1 1 Noise Filter Printed Circuit Board ...
Page 47: ...47 Heat Mode Operation Time Chart ...
Page 49: ...49 ...
Page 50: ...50 ...
Page 56: ...56 ...
Page 57: ...57 ...
Page 58: ...58 ...
Page 127: ...127 17 3 To Remove The Cabinet Rear Plate 17 4 To Remove Pressure Gauge 17 5 To Remove RCCB ...
Page 138: ...138 19 2 Water System 44 46 17 16 4 34 42 18 43 3 33 9 1 45 45 47 2 35 48 36 19 ...