41
11) For backup heater:
For standard indoor unit 60
，
100
，
and 160 , there is no
internal backup heater inside the indoor unit, but the indoor
unit can be connected to an external backup heater, as
described in the picture below.
Control port signal type
Voltage
Maximum running current(A)
Wiring size(mm
2
)
Type 2
220-240VAC
0.2
0.75
a) Procedure
Connect the cable to the appropriate terminals as shown in
the picture.
Fix the cable with cable ties to the cable tie mountings to
ensure stress relief.
Control port signal type
Voltage
Maximum running current(A)
Wiring size(mm
2
)
Type 2
220-240VAC
0.2
0.75
10) For outside circulation pump P_o:
KM2
Power supply
7 5 3 1 A1
A2
2
4
6
8
�
�
����
CN11
25 26
1
2 3 4 5
6
7 8 9 10
CN7
CN30
27 28
29 30 31 32
10
22
KM5
Power supply
7 5 3 1 A1
A2
2
4
6
8
ATCO
TCO
�
�
����
CN11
25 26
1
2 3 4 5
6
7 8 9 10
CN7
CN30
27 28
29 30 31 32
14
17
12) For smart grid:
The unit has smart grid function, there are two ports on PCB to
connect SG signal and EVU signal as following:
SMART GRID
30
29
32
25
26
27
28
31
7
12
11
10
9
18
8
7
5
23
22
24
1
2
13
3
4
6
20
14
15
17
19
16
21
6
8
9
10
5
4
3
2
1
CN4
CN22
CN5
S3
DIS1
CN24
CN1
CN2
CN6
CN8
CN13
CN15
CN16
CN18
CN28
S2
CN42
CN21
S1
S4
CN11
CN7
CN17
CN19
CN30
CN35
CN14
CN31
CN36
CN25
CN29
CN40
CN41
CL
COM
HT
EVU
SG
CN32
Control port signal type
Voltage
Maximum running current(A)
Wiring size(mm
2
)
Type 1
220-240VAC
0.2
0.75
SW9
