TCAC-RTSM-20150203 Tadiran Domestic Pool Type Technical Manual
2.7.4 Electric connection
The air source water heater shall have a specialized power supply, which in compliance with
rated voltage.
If the unit needs to be installed on a metal part of the building, electric insulation must be
performed, and the installation must meet the relevant technical standards of electric devices.
Power supply circuit of the air source water heater should be earthed, the power cord should
be connected with the external earthing line in reliable state and all the external earthing
cables are effective.
Wiring must be performed by professional technicians in accordance with the circuit diagram.
Power cord and the signal cable shall be laid out orderly and separately.
The unit is not equipped with power cord. User could select power cable by reference to
power supply specifications. Shield wire must be employed for signal wire.
Select the power supply capacity and wire size according to the Design Manual. The size of
the power cable of the unit should be bigger than that of ordinary motors.
All wiring should be finished, before power is switched on to the unit, be confirm all
connection are correct.
Check the subscriber grounding is effective.
Specifications of power cable
The power cable is as follows when power deliver to a certain wire individually (no power supply
device is used).
Item
Model
Power
supply
Min. wire size(mm
2
)
(Metal pipe & synthetic resin
pipe wire)
Manual switch(A)
RCCB
Size
(Continuous
length:
≤
30m)
Ground
wire
Capacity
Fuse
LRSJ-60/NYN1
LRSJ-80/NYN1
220-240V~,
50Hz
2.5
2.5
≥20
16
30mA ≤
0.1sec
LRSJ-120/NYN1
LRSJ-140/NYN1
4
4
≥32
25
No power supply device is used; the specifications depend on connected unit’s actual status.