Fujitsu AIRSTAGE J-IIIL Design & Technical Manual page 902

¢ Wiring diagram
NOTES:
• *1: A dedicated power supply that is not shut off even if turned off the indoor units.
• *2: Locally purchased.
(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 contact side of the relay (with the normally closed contact) to external power supply
unit.
(4) Connect the inner and relay power lines to the circuit breaker.
(5) Connect the power line of the power transformer primary side to the circuit breaker.
¢ Electrical requirement
The following items are necessary to install this product. (These items are not included with this
product and must be purchased separately.)
Name
Relay
Electric transformer
NOTE: When connecting multiple units, do not exceed the capacity of the transformer.
7-6. External power supply unit
Electric transformer
AC
(AC 230 V to 24 V)*²
208/230 V*¹
(5)
(3)
(4)
AC
208/230 V
(for indoor unit)
Q'ty
1
1
- (10-50) -
External power
supply unit
(2)
Relay*²
(1)
PCB
Indoor unit
Description
Primary side voltage: AC 208/230 V.
Secondary side rated current: 3 A or more.
Normally Closed contact.
IEC61810-1 or 60335-1
AC 24 V ±15%
UL Class II
7. Optional parts installation