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Idiomas disponibles
Power supply wire
Recommended wire diameter and wire length for power supply wire.
Power supply wiring
Electric characteristics
Model
Power Supply
MMD-AP0721HP-UL1
208 / 230 V-1-60 Hz
MMD-AP0961HP-UL1
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
T
t o
l a
i w
e r
e l
n
g
h t
f o
e r
m
o
e t
c
o
t n
o r
i l
t n
r e
u -
n
t i
w
r i
n i
Indoor unit
Indoor unit
Remote
L
control
L1
wiring
Remote
Remote control inter-unit wiring
control
NOTE
Use copper supply wire.
Use UL wire rated 600V for the power supply.
Use UL wire rated 300V for the remote control wires and control wires.
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.
27-EN
Wire size: 2 × AWG12
Up to 164'1" (50 m)
Ground
1 × AWG12 or thicker
Voltage Range (V)
MCA
Min
Max
(A)
5.7
187
253
7.4
(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)
g
=
L
1
+
L
2
+
...
L
n
U
p
o t
6
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
(A)
15
Outdoor Power supply
15
Ground
L1 L2 L3 N
terminal
5
6
2 '
(200 m)
Indoor unit
Ground
L1 L2
Disconnect
switch per
NEC
Indoor
power
supply
208 /
Circuit
230-1-60
breaker
– 14 –
Outdoor Power supply
Circuit breaker
Circuit breaker
Header outdoor unit
Follower outdoor unit
Ground
U1 U2 U3 U4 U5 U6
L1 L2 L3 N
U1 U2 U3 U4 U5 U6
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
L1 L2
U1U2 A B
L1 L2
Disconnect
Disconnect
switch per
switch per
A B
A B
NEC
NEC
Remote control
Remote control
Indoor unit
Ground
U1U2 A B
L1 L2
U1U2 A B
Disconnect
switch per
A B
NEC
Remote control
Group control
EN
EN
ID
28-EN
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