1.16.
Electrical Connection
(1)
Power cable
Please refer to table 5.6 for the cable requirements for the heat pump unit and the central controller.
Equipment
Power
Supply
Cable Size (mm
2
)
(Plastic Insulation and Conduit)
Air Breaker
Capacity(A)
Current Leakage
Protection
Phase
Wire
Neutral
Wire
Ground
Wire
CAHP-MC-38
380V
3N~50Hz
6
4
6
80
30mA
less than 0.1S
Central
Controller
220V 50Hz
1.5
1.5
1.5
＞
5
Table 5.6 Hot Water System Power Supply Requirement
Note:
1.
Please install four-pole leakage protection switch (with neutral line) and do not use the three
pole leakage protection switch.
2.
The cable size should be increased if the distance between the user’s junction box to the heat
pump unit/central controller is too far.
CAUTION:
•
The heat pump units must be connected with dedicated power supply and the power
supply needs to be controlled within 380V +/-10%.
•
The heat pump power supply circuit must be grounded reliably. The power supply cable
selection, wiring and related protection devices must comply with the requirement from
local domain.
•
The wiring job could only be performed by qualified electric technician with reference to
the system wiring diagram.
•
Please install the leakage protection device as per the requirement from the local domain.
•
Please run the power supply cable and the communication cable in a neat, clean way and
make sure the cables will not touch the piping, valves, etc.
•
This unit is not configured with power supply cables when it leaves the factory, please
select the power supply cable based on the requirement in this manual. Connecting
cables are not allowed as the power supply cables to the unit.
•
If the power supply cable is ran closely to the communication cable, please put each cable
into individual conduit and keep the appropriate distance between two conduits.
•
Please perform through inspection on all the wirings before power on the system.
WARNING:
*An air breaker and an appropriate current leakage protector must be installed outside the water
heater as the specification of power supply table for your security.
*The water heater must be grounded permanently. Otherwise, it can result in electric shock, injury
or death.
