Carrier 40MAQ Series - Wiring; Recommended Connection Method for Power and Communication Wiring

10
ELECTRICAL DATA
UNIT
SIZE
OPER. VOLTAGE
MAX / MIN*
COMPRESSOR OUTDOOR FAN INDOOR FAN
MCA
MAX FUSE
CB AMP
V/PH/HZ RLA V/PH/HZ FLA HP W V/PH/HZ FLA HP W
9K
127 / 104 115/1/60
5.3
115/1/60 0.14 0.053 40 115/1/60 0.17 0.027 20 15 20
12K 5.7
9K
253 / 187 208-230/1/60
5.3
208-230/1/60
0.42 0.053 40
208-230/1/60
0.07 0.027 20 15
15
12K 5.70 0.42 0.053 40 0.07 0.027 20 15
15
18K 7.3 0.95 0.067 50 0.17 0.077 58 15 20
24K 8.8 0.47 0.16 120 0.23 0.080 60 15 25
30K 13.5 1.21 0.16 120 0.23 0.080 60 20 30
*Permissible limits of the voltage range at which the unit will operate satisfactorily.
LEGEND
FLA - Full Load Amps
MCA - Minimum Circuit Amps
RLA - Rated Load Amps
WIRING
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
connecting cable 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.
Consult your local building codes and the NEC (National
Electrical Code) or CEC (Canadian Electrical Code) for special
requirements.
All wires must be sized per NEC or CEC 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.
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.
To minimize voltage drop of the control wire, the factory
recommendation is 14/3 wire with a ground. In special instances,
where there is high electrical interferences, use a separate 16ga
shielded wire to ensure proper communication.
The main power is supplied to the outdoor unit. The fi eld suppl ied
connec t ing ca ble from the outdoor unit to indoor unit cons ists of f our
(4) wir e s and provides the powe r a nd communication signals for the
indoor unit. Two conduc tors ar e for power wiri ng (L1/L2, or L/N),
one is a ground wire, and one is a DC c omm unication wire.
Consult your local building codes and the NEC (National
Electrical Code) or CEC (Canadian Electrical Code) for special
requirements. All power wires must be sized per NEC or CEC and
local codes. Use Electrical Data table MCA (minimum circuit
amps) and MOCP (max imum 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.
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.