Fig. 4.8
Fig. 4.9
NOT CORRECT
Kinks in the drain hose
will create water traps.
NOT CORRECT
Do not place the end
of the drain hose in
water or in containers
that collect water. This
will prevent proper
drainage.
4. Indoor Unit Installation
4.5 Connect signal cable
Before performing electrical work, read these regulations
All wiring must comply with local and national electrical codes, and must be installed by a licensed electrician.
All electrical connections must be made according to the Electrical Connection Diagram located on the
panels of the indoor and outdoor units.
If there is a serious safety issue with the power supply, stop work immediately. Explain your reasoning to the
client, and refuse to install the unit until the safety issue is properly resolved.
Power voltage should be within 90-110% of rated voltage. Insufficient power supply can cause malfunction,
electrical shock, or fire.
If connecting power to fixed wiring, install a surge protector and main power switch with a capacity of 1.5
times the maximum current of the unit.
If connecting power to fixed wiring, a switch or circuit breaker that disconnects all poles and has a contact
separation of at least 1/8in (3mm) must be incorporated in the fixed wiring. The qualified technician must use
an approved circuit breaker or switch.
Only connect the unit to an individual branch circuit outlet. Do not connect another appliance to that oulet.
Make sure to properly ground the air conditioner.
Every wire must be firmly connected. Loose wiring can cause the terminal to overheat, resulting in product
malfunction and possible fire.
Do not let wires touch or rest against refrigerant tubing, the compressor, or any moving parts with the unit.
If the unit has an auxiliary electric heater, it must be installed at least 1 meter (40in) away from any
combustible materials.
The signal cable enables communication between the indoor and outdoor units. You must first choose the right
cable size before preparing it for connection.
Cable Types
1) Indoor Power Cable (if applicable): H05VV-F or H05V2V2-F
2) Outdoor Power Cable: H07RN-F
3) Signal Cable: H07RN-F
W
arning
Before performing any electrical or wiring work, turn off the main power to the system.
> 16 and ≤ 25
2.5
> 25 and ≤ 32
4
Minimum Cross-Sectional Area of Power and Signal Cables
15
Rated Current of Appliance (A)
Nominal Cross-Sectional Area (mm²)
> 3 and ≤ 6
0.75
1
1.5
> 6 and ≤ 10
> 10 and ≤ 16
> 32 and ≤ 40
6
