Wiring works
• Field-supplied electrical components such as power switch, circuit breakers, wires, terminal blocks, etc must be
properly chosen with compliance with national legislation or regulation.
• Switch off the power supply before making any connections.
• All field wiring and components must be installed by a licensed electrician.
• Use a dedicated power supply.
• All power connections must be protected from dew condensation by thermal insulation.
• The system shall be earthed. Do not earth the unit to a utility pipe, surge absorber or telephone earth.
Incomplete earth may cause electrical problems.
CAUTION
Layout of PCB
1
12
10
2
9
8
6
13
7
4
3
5
1
ON
2
3
4
16
1
11
15
14
SMPS circuit
Micom
EEPROM
DIP switch
2-WIRE COMM
Load control
Fuse
No.
Note
No.
Note
①
FR Control
CNS003(Green)
②
Flow Switch
CNS041(Yellow)
③
Temp. Sensor for DHW Tank
CNS042(Yellow)
④
Temp. Sensor for Heater
CNS047(Black)
⑤
Temp. Sensor for Mixing Valve
CNS045(Blue)
⑥
PV(Photovoltaic) Control Signal / Peak power control Signal
CNS046(Black)
10
