haier HB4200VA1M25 User Manual
Page 11
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For Thermostat Control Environment-temperature and Air Conditioning open/stop, the wiring
diagram as shown diagram 4. Thermostat can be mechanical type or programmable type.
Note: Thermostat C: COM.
R : AC24V
Y : COMPRESSOR
G : FAN
For detailed Thermostat, please connect
corresponding terminal according to above
control specification.
For Thermostat only control Air
Conditioning open/stop, hot
control Environment temperature,
can adopt different power switch
show diagram 5. This mode is
control the indoor unit & cooling
only outdoor unit at the same time
no air supply mode. If need select
the air supply mode, switch can
adopt multi-connect switch or
select switch. The detailed infor
see the following diagram 6.
Above diagram: Outdoor Unit
Connection
Left: Indoor and Outdoor unit power
supply Respectively Right: Indoor unit
power supply.
COM
BL
RD
TRANSFORMER
24V
RD
TO FAN RELAY
CONTROL
Y
C
TO OUTDOOR UNIT C,Y
BL
24V
COM
TRANSFORMER
RD
RD
BL
TERMOSTAT
Y
G
R
C
TO FAN
RELAY
CONTROL
TO FAN
RELAY
CONTROL
SWITCH
BL
24V
COM
TRANSFORMER
RD
RD
BL
C
Y
TO OUTDOOR UNIT C,Y
C
Y
TO OUTDOOR UNIT C,Y
SELECT SWITCH
1
2
3
4
5
6
Diagram 4
Diagram 5
Diagram 6
BL