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14
The outdoor and all indoor units are connected in parallel through 2 non-polar wires. Three wiring options between the
wired controller and indoor unit:
A. One wired control to control multiple units, i.e. 2-6 indoor units, as shown in the above gure, (1-2 indoor units). The
indoor unit 2 is the wire controlled main unit and others are the wired controlled sub units. The remote control and the
main unit (directly connected to the indoor unit of wired control) are connected via three wires with polarity.
B. One wired control controls one indoor unit, as shown in the above gure (indoor unit 3-5). The indoor units and the
wired control are connected via three lines with polarity.
C. Two wired controls control one indoor unit, as shown in the gure (indoor unit 6). Either of the wired controls can be set
to be the master wired control while the other is set to be the auxiliary wired control. The master wired control and
indoor units, and the master and auxiliary line controls are connected via three lines with polarity.
Electric wiring and the application
Outdoor power source and power cable
Item
Model
Power
source
Power cable
section
Circuit
breaker
(A)
Rated current of residual
circuit breaker (A)
Ground fault interruptor (mA)
response time (S)
Ground wire
Section
(mm
2
)
Screw
Individual
power
MVHP036MV2AA
MVHP048MV2AA
MVHP056MV2AA
208/230V~, 60Hz 7AWG 50 50A 30mA below 0.1S 7AWG
3/16”
(M5)
• Power cable must be xed rmly.
• To avide electrical shock, make sure to disconnect the power supply 1 minute or more before servicing the electrical
parts.Even after 1 minute,always measure the voltage at the terminals of main circuit capacitors or electrical parts and
before touching, make sure that those voltages are 50VDC or less.
• To persons in charge of electrical wiring work: Do not oerate the unit until the refrigerant piping is complete.(Running it
before the piping is ready will break the compressor)
• Each outdoor must be earthed well.
• When power cable exceeds the range, thichen it appropriately.
• The appliance shall be installed in accordance with national wiring regulations.
• All wiring must be performed by an authorized electrician.
• Be sure to install an earth leakage circuit breaker in accordance with applicable legislation.Failure to do so many
cause electrical shock.
Power wiring gure
Indoor and outdoor use their individual power source. All indoors use one power source. Must install the leakage breaker
and the over current breaker, or electric shock will occur.
power source: 208/230V~, 60Hz
indoor 1
(wall mounted unit)
power source: 208/230V~, 60Hz
indoor 2
(wall mounted unit)
power source: 208/230V~, 60Hz
indoor 3
(non wall mounted unit)
power source: 208/230V~, 60Hz
outdoor
L1(L) L2(N)
L1(L) L2(N)
L1(L) L2(N)
L1(L) L2(N)
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