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The ground fault circuit interrupter must be a high-speed type breaker of 30 mA (<0.1 s). Flexible cord
must meet 60245IEC(H05VV-F) standards.
7.6 Connecting for other components
XT1
Print
1
SL1
2
SL2
3
H
Room thermostat
4
C
15
L1
5
1ON
SV1(3-way valve)
6
1OFF
16
N
7
2ON
8 2OFF SV2(3-way valve)
17
N
9
P_c
CN11
21
N
10 P_o
Outside circulation
pump/zone1 pump
22
N
11
P_s
Solar energy pump
23
N
12
P_d
DHW pipe pump
24
N
13 TBH
16
N
Internal backup
14 IBH1
17
N
N
18
19 3ON
SV3 (3-way valve)
2 2 0 3OFF
Port provide the control signal to the load. Two kind of control signal port:
Type 1 : Dry connector without voltage.
Type 2 : Port provide the signal with 220V voltage. If the current of load is <0.2A, load can connect to
the port directly.
If the current of load is >=0.2A, the AC contactor is required to connected for the load.
2
20
22
Connect to
Solar energy
input signal
input (high
voltage)
(connected in
factory)
Pumpc (zone2
pump)
Unavailable
heater 1
22
NOTE
2
Print
Indicator light of
26
R2
unit operating
status (field supply)
30
R1
Indicator light for
31
DFT2
defrost operation
CN7
32
DFT1
status (field supply)
25
HT
Antifreeze E-heating
tape (field supply)
29
N
27 AHS1
28 AHS2
Connect to
Print
1
A
2
B
Wired controller
3
X
(connected in
4
Y
5
E
6
P
CN30
Outdoor unit
7
Q
8
E
9
H1
cascaded
10
H2
machine
Connect to
Unavailable
factory)
Internal
V.2
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