Wiring Work - Carrier 42QHF009DS Manuel D'installation

INSTALLATION

2.3 Wiring Work

CAUTION
- 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.
- The indoor power cord type should be H05VV-F or H05V2V2-F.
- The outdoor power cord and interconnecting cable type should be H07RN-F.
- Wire cross section is depending on the rated current and national, state and local electrical
wiring code.
- 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.
Rated Current of Each Models
Rated Fuse
Wiring
Model
Current (A) Rating (with Min. Crosse section)
2
QUS009/012
9.5 16A 3*1.5mm + 5*1.5mm
2 2
QUS018 12.5 20A 3*1.5mm + 5*1.5mm
2 2
QUS022 13.0 20A 3*2.5mm + 5*2.5mm
NOTICE:
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.
Indoor Wire Connection
- Lift the indoor unit front panel.
- Remove the indoor unit electrical cover and cord clamp
by loosening the screws.
- Pass the connecting wires from the back of indoor unit
and connect to the indoor terminal block.
Connection Diagram
QHF009/012/018/022
2
Indoor Unit
Outdoor Unit
009/012/018 022
W 1(L) 2(N) S W 1(L) 2(N) S W 1(L) 2(N) S L N
Power supply
To Outdoor
To Outdoor
To Indoor
Outdoor Wire Connection
- Remove the electrical cover and cord clamp by loosening
the screws.
- Connect wires to the outdoor terminal block by same
sequence to indoor unit.
2.4 Air Evacuation and Test Operation
Air Evacuation
- Connect the charge hose from the manifold gauge to the
service port of the gas side packed valve.
- Connect the charge hose to the port of the vacuum pump.
- Fully open the handle Lo of manifold gauge
- Operate the vacuum pump to evacuate air from the
system until 76cmHg.
- Close the handle Lo of manifold gauge.
- Fully open the valve stem of the packed valves.
- Remove the charging hose from the service port.
- Securely tighten caps of packed valve.
Power input cord
60mm
GND
Test Operation
- Measure the supply voltage and make sure that it falls in the specified range.
10mm 40mm
- Push the ON/OFF button on Remote Control to begin testing.
Connective Cable
60mm Note: A protection feature prevents air conditioner from being activated for about 3 minutes.
GND
- Push MODE button, select COOL, HEAT, FAN mode to check if all function
work correctly.
10mm 40mm
- When ambient temperature is lower than 17 deg C, the unit cannot be controlled
by Remote Control to run in cooling mode. For this condition, manual operation
must be used.
a) Open front panel of the indoor unit;
b) Push the manual button once to energize the unit.
Check Items
Indoor and outdoor units are installed properly on solid bases.
No refrigerant gas leaks.
Refrigerant gas and liquid pipes and indoor drain hose extension
are thermally insulated.
Draining line is properly installed.
System is properly ground to earth.
The specified wires are used for inter-unit wiring connections.
Indoor or outdoor unit's air intake or exhaust has clear path of air.
Indoor unit properly receives remote controller commands.
Finial Checking before Test Operation
- TUBING CHECK
Check to be certain factory tubing on both indoor and
outdoor unit has not shifted during shipment. Ensure
tubes are not rubbing against each other or any sheet
metal.
- LEAKAGE CHECK
Do leakage check to the refrigerant line connection
with a leak detector or soap water, especially the flare
nut connections, valve stem cap connections and
service port cap connections.
Check Items Symptom
Fall, vibration, noise
Incomplete cooling/heating function
Water leakage
Water leakage
Electrical leakage
Inoperative or burn damage
Incomplete cooling/heating function
Inoperative
Check