Electric Characteristics - Carrier MMU-AP0072H2UL Installation Manual

Power supply wire
• Recommended wire diameter and wire length for power supply wire.
Power supply wiring

Electric characteristics

Model Power Supply
MMU-AP0072H2UL
MMU-AP0092H2UL
MMU-AP0122H2UL
MMU-AP0152H2UL
MMU-AP0182H2UL
208/230 V-1-60 Hz
MMU-AP0212H2UL
MMU-AP0242H2UL
MMU-AP0302H2UL
MMU-AP0362H2UL
MMU-AP0422H2UL
Control wire
Control wiring between indoor units, and outdoor unit (2-core
shielded wire)
Remote control wiring
• 2-core with non-polarity wire is used for wiring of the remote control wiring and group remote controls wiring.
Remote control wiring, remote control inter-unit wiring
Total wire length of remote control wiring and remote control
inter-unit wiring = L + L1 + L2 + ... Ln
Total wire length of remote control inter-unit wiring = L1 + L2 + ... Ln
Indoor unit Indoor unit
L
Remote
control
L1
wiring
Remote
Remote control inter-unit wiring
control
CAUTION
The remote control wire (Communication line) and AC208/230 V wires cannot be parallel to contact each other and
cannot be stored in the same conduits. If doing so, a trouble may be caused on the control system due to noise or other
factor.
NOTE
• Use copper supply wire.
• Use UL wire rated 600 V for the power supply.
• Use UL wire rated 300 V for the remote control wires and control wires.
19-EN
Wire size: 2 × AWG12
Up to 164'1" (50 m)
Ground 1 × AWG12 or thicker
MCA : Minimum Circuit Amps
MOCP : Maximum Overcurrent Protection (Amps)
Voltage Range (V) MCA
Min Max (A)
0.8
0.8
0.8
0.8
0.8
187 253
1.0
1.0
1.0
1.3
1.3
(Up to 3280'10" (1000 m)) AWG16
Wire size
(Up to 6561'8" (2000 m)) AWG14
Wire size: AWG20
In case of wired type only Up to 1640'5" (500 m)
In case of wireless type included Up to 1312'4" (400 m)
Up to 656'2" (200 m)
Indoor unit Indoor unit
L2 Ln
(Max. 8 units)
 Wiring between indoor and outdoor units
NOTE
An outdoor unit connected with control wiring between indoor and outdoor units wire becomes automatically the header
unit.
▼ Wiring example
MOCP
Outdoor Power supply
(A) 208/230-3-60
460 V -3 - 60 Hz
15
15
Circuit breaker
15
15
Header outdoor unit
15
15
Ground
15 L1 L2 L3 N
terminal
15
15
15
Indoor unit
Ground
L1L2
Disconnect
switch per NEC
Indoor
power
supply
208/230- Circuit
breaker
1-60
– 10 –
Outdoor Power supply
208/230-3-60
460 V -3 - 60 Hz
Circuit breaker
Follower outdoor unit
Ground
U1U2U3U4 U5U6 L1 L2 L3 N U1U2U3U4 U5U6
terminal
Control wiring between outdoor units
Control wiring between indoor and outdoor units
Control wiring between indoor units
Indoor unit Indoor unit
Ground Ground
U1U2 A B L1L2 U1U2 A B L1L2 U1U2
Disconnect Disconnect
A B A B
switch per switch per
NEC
NEC
Remote Remote
control control
Indoor unit
Ground
A B L1L2 U1U2 A B
Disconnect
A B
switch per
NEC
Remote
control
EN
20-EN