6. SYSTEM DESIGN
POWER SUPPLY CABLE WIRING4-2.
POWER SUPPLY CABLE SPECIFICATIONS
Use a separate power supply for the outdoor unit and branch box.
Note: *1: Selected sample (Select an appropriate diameter of cable and the kind of cable according to each
country and a local rule. )
*2: It is a total value of connected indoor units and branch box. (Refer to "3.OUTDOOR UNIT & BRANCH
BOX" and "4.INDOOR UNITS")
*3: Selected sample (Select the one that the rush current when the power supply is turned on can be
endured.)
Outdoor unit
Model cable size
Maximum current
MCA
Circuit breaker
MOCP
Earth leakage
breaker
Remarks
AOU48RLXFZ 8 AWG *1 26.5 A 40 A
30mA 0.1sec or
less
208/230V 60Hz
2Wire + ground
Select cable size base on the value of MCA and MOCP. In the table of "3. OUTDOOR UNIT ●
AND BRANCH BOX",example of wiring specification for outdoor unit is given.
Select circuit breaker for outdoor unit based on the value of MOCP. ●
Branch box
Model cable size
Maximum current
MCA
Circuit breaker
MOCP
Earth leakage
breaker
Remarks
UTP-PU03A
14 AWG *1 *2 15 A *3
30mA 0.1sec or
less
208/230V 60Hz
2Wire + ground
UTP-PU03B
Select cable size based on the value of total MCA of the indoor units and branch box ●
connected.
In order to be influenced of a breaker stop, please divide a power supply circuit for every ●
branch box.
Each branch box must be connected to a circuit breaker. ●
Please design the power supply circuit to keep the voltage drop within 2%. ●
Indoor unit
Model cable size Remarks
All models 14 AWG *1
208/230V 60Hz
3Wire + ground
The branch box provides power to the indoor units. ●
Total Minimum Circuit Ampacity of connected indoor units and branch boxes must be less ●
than 15A.
*MCA : Minimum Circuit Ampacity
*MOCP : Maximum Over Current Protection
- (06 - 39) -
SYSTEM
DESIGN
SYSTEM
DESIGN
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