Airwell Monobloc R32, Installation And Owner'S Manual

Page: 49 / 90

46
a) Procedure
Connect the cable to the appropriate terminals as
shown in the picture.
Fix the cable reliably.
Control port signal type
Voltage
Maximum running current(A)
Wiring size(mm
2
)
Type 2
220-240VAC
0.2
0.75
For 5/7/9 kW units
，
the terminal number is 37
and 38. For 12/14/16 kW units
，
the terminal
number is 29 and 30.
NOTE
Voltage
Maximum running current(A)
Wiring size(mm
2
)
220-240VAC
0.2
0.75
C
3
13
N
15
H
N
L
N
L
Method C:
RT2 RT2
There are two optional connect method depend
on the room thermostat type.
NOTE
Room thermostat type 1(RT1): “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)(Recommend wire
connection method): L N provide the power supply to the
RT connector directly. L connect from the unit main
power supply port L of 1-phase power supply , L2 of
3-phase power supply.
There are three methods for connecting the thermostat cable (as described in the picture above) and it depends on the
application.
L1 N L2 L3
XT1
HEAT
RT
TO CONTROL PCB
N
COOL
POWER SUPPLY
3-phase
7) For room thermostat:
Method B:
RT1
COOL
POWER
IN
HEAT
14
C
H
3
13
L1
14
C
H
3
13
L1
Method A:
RT1
POWER
IN
External ON/OFF thermostat
External thermostat
HEAT
C
3
13
N
L
N
15
RT2
H
C
3
13
N
15
H
N
L
Method A: Method B:
RT2
COOL
Method C:
14
C
H
3
13
L1
RT1
POWER IN
RT1
POWER IN