Fujitsu AIRSTAGE J-IIIL Design & Technical Manual page 573

• Table A. Current breaker requirements
Model
All models
– MCA: Minimum Circuit Ampacity
– MAX. CKT. BKR: Maximum Circuit Breaker
When the power crossover wiring is done, make it so that the total of the MCA of the connected
indoor units does not exceed the 11 A.
• Table B. Ground Fault Equipment Breaker requirements
Breaker capacity
30 mA, 0.1 sec or less
100 mA, 0.1 sec or less
If the total number of units connected to the breaker exceeds 36, either add a 30 mA breaker or
use a breaker with a greater capacity.
NOTE: For how to count the units, refer to the table below.
• Example 1:
Connected units: AUUA9TLAV2 × 4 + AUUB18TLAV × 2 + ARUL9TLAV2 × 1
Amount of units: 1 × 4 + 1 × 2 + 1 × 1 = 7
• Example 2:
Connected units: ARUH72TLAV2 × 1 + AUUA9TLAV2 × 2 + ARUL9TLAV2 × 2
Amount of units: 3 × 1 + 1 × 2 + 1 × 2 = 7
4-2. Power supply cable
MCA (A)
Refer to "Electrical characteristics"
UNITS on page 04-26
Connected unit
Indoor units
Except High static pressure duct
Indoor units
High static pressure duct
- (06-51) -
in Chapter 4. INDOOR
Maximum connectable "Units"
36 or less
37 to 121
Q'ty
1
1
MAX. CKT. BKR
(A)
15
Count
1
3
4. Wiring design