3
All wires must be sized per NEC (National Electrical Code) or
CEC (Canadian Electrical Code) and local codes. Use Electrical
Data table MCA (minimum circuit amps) and MOCP (maximum
over current protection) to correctly size the wires and the
disconnect fuse or breakers respectively.
Per caution note, only copper conductors with a minimum 300 volt
rating and 2/64- - inch thick insulation must be used. The use of
BX cable is not recommended.
Recommended Connection Method for Power and
Communication Wiring - Power and Communication Wiring:
The main power is supplied to the outdoor unit. The field supplied
14/3 power/communication wiring from the outdoor unit to indoor
unit consists of four (4) wires and provides the power for the
indoor unit. Two wires are high voltage AC power, one is
communication wiring and the other is a ground wire.
Recommended Connection Method for Power and
Communication Wiring (To minimize communication wiring
interference)
Power Wiring:
The main power is supplied to the outdoor unit. The field supplied
power wiring from the outdoor unit to indoor unit consists of three
(3) wires and provides the power for the indoor unit. Two wires are
high voltage AC power and one is a ground wire.
To minimize voltage drop, the factory recommended wire size is
14/2 stranded with a ground.
Communication Wiring:
A separate shielded copper conductor only, with a minimum 300
volt rating and 2/64- inch thick insulation, must be used as the
communication wire from the outdoor unit to the indoor unit.
Please use a separate shielded 16GA stranded control wire.
CAUTION
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
S
Wires should be sized based on NEC and local codes.
S
Use copper conductors only with a minimum 300 volt
rating and 2/64 inch thick insulation.
CAUTION
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
S
Be sure to comply with local codes while running wire
from indoor unit to outdoor unit.
S
Every wire must be connected firmly. Loose wiring may
cause terminal to overheat or result in unit malfunction.
A fire hazard may also exist. Therefore, be sure all
wiring is tightly connected.
S
No wire should be allowed to touch refrigerant tubing,
compressor or any moving parts.
S
Disconnecting means must be provided and shall be
located within sight and readily accessible from the air
conditioner.
S
Connecting cable with conduit shall be routed through
hole in the conduit panel.
Table 3—Electrical Data
UNIT
SIZE
OPERVOLTAGE
-
MAX / MIN*
COMPRESSOR
OUTDOOR FAN
INDOOR FAN
MCA
MAX FUSE
CB AMP
V/PH/HZ
RLA
LRA
V/PH/HZ
FLA
HP
W
V/PH/HZ
FLA
HP
W
9K
253 / 187
208-230/1/60
8.5
35
208-230/1/60
0.37
0.04
30
208-230/1/60
0.1
0.027
20
12
15
12K
9.5
40
0.37
0.04
30
0.1
0.027
20
13
20
18K
14.5
30
0.48
0.12
90
0.1
0.027
20
19
30
