Wiring; Power From Outdoor Side - Carrier 42QZL018RS Serie Installationshandbuch

5. WIRING

CAUTION
All the electrical connections must be carried out by qualified installers and all the wirings must be
connected according to the wiring diagram.
Make ground connection prior to any other electrical connections.
All power sources must be turned off before wiring work and do not turn on the power until you have
made sure all the wirings have been safety checked.
A main switch and circuit breaker or fuse must be installed, the capacity should be above 1.5 times of
maximum current in circuit.
An individual branch circuit and single socket used only for this appliance must be available.
Wire cross section is depending on the rated current and national, state and local electrical wiring
code. Consult local building codes and National electrical code for special requirement.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly
qualified persons in order to avoid a hazard.
The unit must be connected to the main power supply by means of a circuit breaker or a switch with a
contact separation of at least 3mm in all poles. Installation of a residual current device (RCD) having
a rated residual operating current not exceeding 30mA is advisable.
There are two kinds of wire connection. Check the wiring diagram carefully before connect the wire.
5.1 POWER FROM OUTDOOR SIDE (For QUS018/024)
Wiring figure
Indoor
Unit
Ground wiring
Power supply and connecting wires specification
Mode(Btu/h)
Phase
Power
Supply
Frequency and volt
Fuse Rating(Field Supply)
Power Cord(Field Supply)
Indoor/outdoor connecting wiring
(Field Supply)
Outdoor
Unit
18k
1-Phase
220-240V~ 50Hz
20A
H07RN-F; 3×2.5mm 2 H07RN-F; 3×2.5mm
2 H07RN-F; 4×2.5mm
H07RN-F; 4×1.5mm
Power supply
Switch/Fuse
Power Cord
Ground wiring
High voltage wiring (Power supply)
Signal line
24k
1-Phase
220-240V~ 50Hz
25A
2
2
GB-15 7