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Installation Instructions
POWER
W 14
W 15
XT1
G
1
N 2
XT 2
D
B
W 1
R
C
G
Note:
1.Please refer to the instruction manual to check whether the unit can connect to the engineering electric heating .
2.When the unit doesn't connect to the engineering electric heating, connect the engineering power supply to the W14(BK) and W15(WH) of X1.
3.When the unit connects to the engineering electric heating, connect the engineering power supply to the breaker.
4.The primary input voltage of transformer is defaulted at 230V(BK). When switching the power supply of the complete unit to 208V, connect the
primary input voltage of transformer to 208V(BU), which can be realized by exchanging the black wire and the blue wire.
5.① Only applicable for the unit whose motor is with earthing wire .
6.②As for wiring, please refer to the parameters before " /" of MCA and MOP of heat kit on the nameplate for CB1; please refer to parameters
after " /" of MCA and MOP for CB2.
16
X1
W 3
1 2 3 4 5 6
W 4
W 1
W 2
W 6
W 7
X1
X2
W 13
CN 7
TUBE
W 11
X10
X14
TUBE - O
W 12
W 16
X11
AP 1
W 8
X4
JUMP
CN 5
W 9
X3
X9
X13 X7
W 10
1
XT 3
TC
WH
BU
BK
YE
RD
L1
G
G
HEAT
CB 1
X1
W 5
5KW HEAT KIT
8KW HEAT KIT
CB1
30A Circuit breaker
45A Circuit breaker
Tube
20K
temperature
sensor
47K
W 17
RD
BK
M
XT 1- 1
XT 1- 2
Fan
motor
YEGN
①
G
L2
L1
G
G
HEAT
CB 1
CB 1 CB 2
15KW HEAT KIT
②
10KW HEAT KIT
CB1
60A Circuit breaker
60A Circuit breaker
CB2
30A Circuit breaker
Code
TC
XT1~XT3
D
B
signal, energized under
W1
R
C
G
L2
CB 2
CB 1
X1
20KW HEAT KIT
60A Circuit breaker
60A Circuit breaker
Name
Transformer
Wiring board
Defrosting signal
4-way valve control
the heating mode
Heater control signal
24V AC power supply
24V common
Indoor unit fan signal
31-5000710 Rev. 3
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