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14
Electrical work
Electrical work
Electric safety regulations for the initial installation
1. If there is serious safety problem
about the power supply, the
technicians should refuse to install
the air conditioner and explain
to the client until the problem is
solved.
2. Power voltage should meet the
requirements in table 2.1.
3. Over current protection and
circuit disconnect should meet
the requirements in table 2.1 and
the applicable local and national
electrical codes.
Connecting (Power and Control Cable)
• The main power is supplied to the outdoor unit. The field supplied connecting
cable from the outdoor unit to indoor unit consists of four wires and provides
the power for the indoor unit as well as the communication signal and ground
between the outdoor and indoor unit. Two wires are high voltage AC power,
one is low voltage DC signal and one is a ground wire.
• Consult local building codes, NEC (National Electrical Code) or CEC
(Canadian Electrical Code) for special requirements.
4. Ensure the air conditioner is
grounded well.
5. All wiring must comply with local
and national electrical codes and
be installed by qualified and skilled
electricians.
6. An individual branch circuit used
only for this air conditioner must be
available. See table 2.1.
Outdoor FanCompressor Indoor Fan
Operating
Voltage
(Min/Max)
RLA LRA FLA
Output
Watts
Volts FLA
Output
Watts
Electrical Data Table 2.1
Capacity
(BTU/h)
System
Voltage
Volts-Ph.-
Freq
MIN. Circuit
Ampacity
(MCA)
Max. Fuse/Circuit
Breaker
Amps(MOP)
12000 115-1-60 10.5 / 0.16
115V-AC
0.19 20 15 25
40
9000 115-1-60 103.5/126.5
103.5/126.5
9.8 / 0.16
115V-AC
0.19 20 15 20
35
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