Thermostat Wiring - Haier HB2400VD2M20 Installation & Operation Manual

THERMOSTAT WIRING

For Thermostat Control Environment-temperature and Air Conditioning open/stop, the wiring
diagram as shown diagram 1. Thermostat can be mechanical type or programmable type.
Note: Thermostat C : COM.
R : AC24V
Y : COMPRESSOR
G : FAN
O : 4 -WAY VALUE
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 2. This mode is
control the indoor unit & heat
pump 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
3.
Above diagram: Outdoor Unit
Connection
Left: Indoor and Outdoor unit power
supply Respectively Right: Indoor unit
power supply.
G
TO INDOOR
FAN RELAY
CONTROL
TO OUTDOOR UNIT R,C,Y,O
Diagram 1
RUN SWITCH
TO INDOOR
FAN RELAY
RD
CONTROL
BL
O Y C
TO OUTDOOR UNIT R,C,Y,O
Diagram 2
SELECT SWITCH
TO FAN RELAY
CONTROL
TO OUTDOOR UNIT R,C,Y,O
Diagram 3
11
TERMOSTAT
O Y R
OR YL
RD
BL
24V
O Y C R
TRANSFORMER
MODE SWITCH
RD
BL
COM
24V
R
TRANSFORMER
1 OFF
2 FAN ONLY
3 E. HEAT
4 HEAT PUMP
5 COOLING
6
RD
YL
BL
24V
O Y C R
TRANSFORMER
C
BL
COM
Open for heating
Close for cooling
BL
COM