44
2. When EVU signal is off, and SG signal is on, the unit operate
normally.
3. When EVU signal is off, SG signal is off, the DHW mode is off, and
the TBH is invalid, disinfect function is invalid. The max running time for
cooling/heating is "SG RUNNIN TIME", then unit will be off.
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
2468
�
�
����
CN11
25 26
1
2
3
4
5
6
7
8
9
10
CN7 CN30
27 28
29 30
31
32
10
22
11) 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
3029
32
25 26 27 28
31
7
1211
109
18
8
7
5
2322 24
1 2
13
3
4
6
2014 15 17 1916 21
6 8 9
10
5
4321
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
Control port signal type
Voltage
Maximum running current(A)
Wiring size(mm
2
)
Type 1
220-240VAC
0.2
0.75
1. when EVU signal is on, the unit operate as below:
DHW mode turn on, the setting temperature will be changed to 70℃
automatically, and the TBH operate as below:T5<69. the TBH is on,
T5 ≥ 70, the TBH is off. The unit operate in cooling/heating mode
as the normal logic.
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