9) For remote shut down:
CN5
CN28
CN21
CN25
CN32
S1
S2
CN29
CN4
S3
CN42
CN22
1
2
3
4
5
6
7
8
9
10
13
14 15
16
17
18
19
20
21
CN11
CLOSE: SHUT DOWN
CN8
CN6
CN24
CN23
CN13
CN37
CN15
CN38
CN18
CN64
CN27
CN33
SW9
CN17
11
12
1
2
3
4
5
22
23
24
6
7
8
9
10
CN30
10) For smart grid:
The unit has smart grid function, there are two ports on PCB to
connect SG signal and EVU signal as following:
CN5
CN28
CN21
CN25
CN32
CN29
S3
CN42
CN22
1
2
3
4
5
6
13
14 15
16
17
CN11
1) SG=ON, EVU=ON.
If DHW mode is set available:
●The heat pump will operate in DHW mode firstly.
●TBH is set available, If T5<69℃,TBH will be turned on forcibly
(The heat pump and TBH can operate at the same time.); if T5
≥70℃, TBH will be turned off.(DHW=Domestic Hot Water, T5S
is the set water tank temperature.)
●TBH is set unavailable and IBH is set available for DHW mode,
as long as T5<59℃,IBH will be turned on forcibly(The heat
pump and TBH can operate at the same time.); if T5≥ 60℃, IBH
will be turned off.
2) SG=OFF, EVU=ON.
If DHW mode is set available and DHW mode is set ON:
●The heat pump will operate in DHW mode firstly.
●If TBH is set available and DHW mode is set ON, If T5<
T5S-2,the TBH will be turned on ( The heat pump and IBH can
operate at the same time.); if T5≥T5S+3,the TBH will be
turned off.
●If TBH is set unavailable and IBH is set available for DHW
mode ,If T5<T5S-dT5_ON, IBH will be turned on ( The heat
pump and IBH can operate at the same time.); if T5≥Min
(T5S+3,60), the IBH will be turned off.
3) SG=OFF, EVU=OFF.
The unit will operate normally
4) SG=ON, EVU=OFF.
Heat pump,IBH, TBH will be turned off immediately.
42
CN8
CN6
CN24
CN13
CN37
CN15
CN38
CN18
CN64
CN27
S1
S2
CN33
CN4
SW9
CN17
7
8
9
10
11
12
1
2
3
4
18
19
20
21
22
23
24
6
7
8
9
CN30
CN23
5
10