Method B
RT1
COOL
POWER
IN
HEAT
14
C
H
3
13
L1
14
C
H
3
13
L1
Method A
RT1
POWER
IN
Method C
14
C
H
3
13
L1
RT1
POWER IN
RT1
POWER IN
Method A
RT2
COOL
POWER
IN
HEAT
COM
3
1
CL
HT
2
Main control board of hydraulic module
CN31
Method B
RT2
POWER
IN
COM
3
1
CL
HT
2
Main control board of hydraulic module
CN31
Method C
COM
3
1
CL
HT
2
Main control board of hydraulic module
CN31
RT1
RT1
POWER
IN
POWER
IN
Voltage
220-240VAC
Maximum running current(A)
0.2
Wiring size(mm
2
)
0.75
L1
N
L2
L3
XT1
HEAT
RT
TO CONTROL PCB
N
COOL
POWER SUPPLY
3-phase
H
13
C
3
46
47
NOTE
7) For room thermostat:
Room thermostat type 1(RT1) (High voltage)
Room thermostat type2 (RT2) (Low voltage):
Room thermostat type 1(RT1)(High voltage): "POWER
IN" provide the working voltage to the RT, doesn't provide
the voltage to the RT connector directly. Port "14 L1"
provide the 220V voltage to the RT connector. Port "14
L1" connect from the unit main power supply port L of 1-
phase power supply, L2 port of 3-phase power supply.
Room thermostat type2(RT2)(Low voltage): "POWER IN"
provide the working voltage to the RT.
There are three methods for connecting the thermostat cable (as described in the picture above) and it depends on the
applica-tion.
There are two optional connect method de-
pend on the room thermostat type.
