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 90-100% of rated voltage. Insufficient power supply can cause
malfunction, electrical shock, or fire.
• If connecting power to fixed wiring, install a surge protector (Ideal-Air
TM
700522) 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 3mm/.125" 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 outlet.
• 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 within the unit.
STEP 6: CONNECT SIGNAL CABLE
The signal cable enables communication between the
indoor and outdoor units. You must first choose the
right cable size before preparing it for connection.
CHOOSE THE RIGHT CABLE SIZE
The size of the power supply cable, signal cable, fuse, and switch needed is determined by the maximum current
of the unit. The maximum current is indicated on the nameplate located on the side panel of the unit. Refer to
this nameplate to choose the right cable, fuse or switch.
MINIMUM CROSS-SECTIONAL AREA OF POWER AND SIGNAL CABLES
BEFORE PERFORMING ANY ELECTRICAL OR WIRING WORK, TURN OFF THE MAIN
POWER TO THE SYSTEM.
WARNING
CAUTION
North America
Appliance Amps (A)
AWG
10
18
13
16
18
14
25
12
30
10
Other Regions
Rated Current of
Appliance (A)
Nominal Cross-Sectional
Area (mm²)/in
2
> 3 and
≤
6
0.75/.03”
> 6 and
≤
10
1/.28”
> 10 and
≤
16
1.5/.06”
> 16 and
≤
25
2.5/.10”
> 25 and
≤
32
4/.16”
> 32 and
≤
40
6/.24”
bo
