¢ Wiring diagram
AC
220/230/240 V*¹
Electric transformer
(AC 240 V to 24 V)*²
External power
supply unit
AC
220/230/240 V
(for indoor unit)
(1)
(2)
(3)
(4)
1
5
4
2
Relay
Indoor unit
PCB
breaker*³
NOTES:
• *1: A dedicated power supply that is not shut off even if turned off the indoor units.
• *2: Locally purchased
• *3: Circuit breaker and earth leakage breaker
(1) Connect the external power supply unit and the PCB of the indoor unit with the provided connect-
ing cable. (Depending on the model of the indoor unit, the adapter cable is also used.)
(2) Connect AC 24 V (±20%) power to the terminal of the external power supply unit.
(3) Connect the indoor unit and the external power supply unit to the circuit breaker.
(4) Connect the power line of the power transformer primary side to the circuit breaker.
¢ Electrical requirement
The following item is necessary to install this product. (This item is not included with this product and
must be purchased separately.)
Name Q’ty Description
Electric transformer 1
AC 24 V ±15%
UL Class II
NOTE:
When connecting multiple units, do not exceed the capacity of the transformer.
8-7. External power supply unit (UTZ-GXXC)
- (10-60) - 8. Optional parts installation
OPTIONAL
PARTS
OPTIONAL
PARTS
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