Wiring - Carrier 42QHC007D8S Installation Manual

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.
This appliance incorporates an earth connection for functional purposes only.
Capacity(kW) Rated Current(A)
7k/9k/12k 10.0
12.5
18k
18.0
24k
NOTICE:
1. All power wires must be sized in according with national,state and local electrical wiring code. Consult local
building codes and National Electrical Code for special requirements.
2. The outdoor power cord and interconnecting cable type should be H07RN-F.
3. The rated current of appliance is indicated on the nameplate.
4. The specification of outdoor unit fuse is T20A/250VAC (applicalbe to units adpot R32 refrigerant
only) Note: The fuse is made of ceramic.
Power input cord
GND
10mm
Capacity(kW) Indoor Unit
7 K
W 1 2 S
9k
12k
18k
To outdoor
W 1
24k
13
To outdoor
Connective Cable
Power input cord
Fuse Rating(A)
(with Min. Crosse section) (with Min. Crosse section)
16 3*1.5mm
20 3*1.5mm
30 3*2.5mm
Connective Cable
60mm
60mm
GND
40mm
10mm 40mm
Outdoor Unit
W 1 2 S L N
Power Input
To Indoor
W 1 2 S L N
2 S
To Indoor Power Input
5. WIRING
Magnetic ring installation
For example:
The terminal block may be different according to the models.
Indoor unit
5*1.5mm
5*1.5mm
5*2.5mm
7 K K
Pass the belt through
the hole of the Magnetic
ring to fix it on the cable
1 2 S
Magnetic ring
(if supplied and packed with the accessories)
Pass the belt through the hole of the
Magnetic ring to fix it on the cable
Outdoor unit
1 2
L
S
4cm
Y/G
Magnetic ring
N
4cm
Magnetic ring
(if supplied and packed
with the accessories)
14