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12.4.2 How to fix cable
12.4.2.1 Connecting with external device (optional)
All connections shall
follow to the local national wiring standard.
It is strongly recommended to use manufacturer-recommended parts and accessories for installation.
For connection to main PCB
4
1 Two-way valve shall be spring and electronic type, refer to “Field Supply Accessories” table for details. Valve
cable shall be (3 x min 1.5 mm
2
), of type designation 60245 IEC 57 or heavier, or similarly double insulation
sheathed cable.
* note: - Two-way Valve shall be CE marking compliance component.
- Maximum load for the valve is 9.8VA.
2 Room thermostat cable must be (4 or 3 x min 0.5 mm
2
), of type designation 60245 IEC 57 or heavier cord, or
similarly double insulation sheathed cable.
3 Extra pump cable shall be (2 x min 1.5 mm
2
), of type designation 60245 IEC 57 or heavier.
4 Boiler contact cable shall be (2 x min 0.5 mm
2
), of type designation 60245 IEC 57 or heavier.
5 External control shall be connected to 1-pole switch with min 3.0 mm contact gap. Its cable must be (2 x min
0.5 mm
2
), double insulation layer of PVC-sheathed or rubber-sheathed cable.
* note: - Switch used shall be CE compliance component.
- Maximum operating current shall be less than 3A
rms
.
6 Room sensor zone 1 cable shall be (2 x min 0.3 mm
2
) double insulation layer of PVC-sheathed or rubber-
sheathed.
7 Outdoor air sensor cable shall be (2 x min 0.3 mm
2
) double insulation layer of PVC-sheathed or rubber-
sheathed.
Holder (Clamper)
4
Main PCB
Power Supply 2
RCCB/ELCB
Power Supply 1
RCCB/ELCB
Indoor
terminal for
connecting
cables
Bind optional
cables with
these bands
Bind optional
cables with
these bands
How to guide the optional cables and power supply cord
(view without internal wiring)
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•
•
•
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Extra pump cable
•
•
Power Supply 1 cord
•
Power Supply 2 cord
•
Optional cables:
2-way valve
cable
Room thermostat zone
1 cable
Boiler contact cable
Indoor Unit/Outdoor Unit Connecting cable
Optional cables:
External control
cable
Room sensor
zone 1
Outdoor air sensor
cable
Remote controller
cable