This power circuit must be protected with the required safety devices
according to local laws and regulations.
Select the power cable in accordance with relevant local laws and
regulations. For the maximum running current of the backup heater,
refer to the table below.
2
4
6 22
KM4
3
5 21
1
4
2
3
CB2
1
XT1
L2 N2
L3 N3
Backup heater nominal voltage
Minimum circuit amps (MCA)
Maximum overcurrent protector (MOP)
Flexible cord must meet 60245IEC(H05VV-F) standards.
NOTE
The ground fault circuit interrupter must be a high-speed
type breaker of 30 mA (<0.1 s).
5.9.3.2 Connection for other components
■
Electrical parts of the hydraulic compartment: The XT4/XT5 contains
terminals for solar energy, remote alarm, 2-way valve, 3-way valve,
pump, booster heater and external heating source.
The parts wiring is illustrated below:
■
Equipment must be grounded.
All high-voltage external load, if it is metal or a grounded
port, must be grounded.
■
All external load current is needed less than 0.2A,
if the single load current is greater than 0.2A,
the load must be controlled through AC contactor.
■
"STV1" "STV2", "A1" "A2", "R1" "R1" and "DTF1" "DTF2"
wiring terminal ports provide only the switch signal.
TBH electric heating power is less than 3000W.
2
4
6
22
KM3
1
3
5
21
4
2
I >
I >
1
3
CB2
XT1
L2 N2
L3 N3
Backup heater capacity
3kW
1-phase
3-phase
230V
400V
14.3
14.3
32A
32A
26
1
2
SL1 SL2
Voltage
CONNECT TO SOLAR
Maximum running current
PUMP SATATION
Wiring size
220VAC-240VAC INPUT
22
23
P_s N
Voltage
Maximum running current
SOLAR PUMP
CONTROL SIGNAL OUTPUT
Wiring size
For remote alarm:
REMOTE ALARM
ALARM
Voltage
24
12
A1 A2
Maximum running current
FUSE
Wiring size
Procedure
1. Connect the cable to the appropriate terminals as shown on the
diagram.
2. Fix the cable with cable ties to the cable tie mountings to ensure
stress relief.
For 2-way valve SV2:
18
19
N
SV2
Voltage
Maximum running current
Wiring size
SV2
NOTE: Only a normal closing valve is available for this unit
Procedures
1. Connect the valve cable to the appropriate terminals as shown
in the picture
2. Fix the cable with cable ties to the cable tie mountings to ensure
stress relief
For 3-way value SV1
6
7
21
ON OFF N
SV1
Voltage
Maximum running current
Wiring size
220VAC-240VAC
0.2A
0.75mm
2
220VAC-240VAC
0.2A
0.75mm
2
Passive signal port
0.2A
0.75mm
2
220VAC-240VAC
0.2A
0.75mm
2
6
7
21
ON
OFF N
SV1
220VAC-240VAC
0.2A
0.75mm
2
V.1