R32
Split Type - Air Source Heat Pump 20220105
66
humidity is higher than RH 80%, the thickness of the sealing materials should be at least 20mm in order to avoid
condensation on the surface of the seal.
4. Electrical Wiring
4.1 General caution
All installation and wiring must be carried out by competent and suitably qualified, certified and accredited
professionals and in accordance with all applicable legislation.
Electrical systems should be grounded in accordance with all applicable legislation.
Overcurrent circuit breakers and residualcurrent circuit breakers (ground fault circuit interrupters) should be
used in accordance with all applicable legislation.
Wiring patterns shown in this data book are general connection guides only and are not intended for, or to
include all details for, any specific installation.
The water piping, power wiring and communication wiring are typically run in parallel. However the
communication wiring should not be bound together with power wiring. To prevent signal interference, the
power wiring and communication wiring should not be run in the same conduit. If the power supply is less than
10A, a separation of at least 300mm between power wiring and communication wiring conduits should be
maintained; if the power supply is in the range 10A to 50A then a separation of at least 500mm should be
maintained.
4.2 Precautions
Fix cables so that cables do not make contact with the pipes (especially on the high pressure side).
Secure the electrical wiring with cable ties so that it does not come in contact with the piping, particularly on
the highpressure side.
Make sure no external pressure is applied to the terminal connectors.When installing the ground fault circuit
interrupter make sure that it is compatible with the inverter (resistant to high frequency electrical noise) to avoid
unnecessary opening of the ground fault circuit interrupter
4.3 Guideless
Most field wiring on the unit is to be made on the terminal block inside the switch box. To gain access to the
terminal block, remove the switch box service panel.
Fix all cables using cable ties.
A dedicated power circuit is required for the backup electric heater.
Installation equipped with a domestic hot water tank (field supplied) requires a dedicated power circuit for
the immersion heater
Secure the wiring in the order shown below:
Lay out the wires before wiring, so that the cover of the electronic control box will not be bulging after the
cover;
All wiring reference electrical wiring diagram;
After the wire is connected, secure the cover of the electronic control box.
