Piping and Wiring for Outdoor Unit
Installation Manual
51
ENGLISH
Notes:
1. MCA / MOP
MCA = (1.25 x Load1) + Load2 + Load3
MOP = (2.25 x Load1) + Load2 + Load3
- Load1 : Rated running current of largest motor
(compressor or other motor)
- Load2 : sum of current for all other motors
- Load3 : any other load rated 1.0A or more
2. Select wire spec. based on the MCA
3. Recommended circuit breaker is ELCB (Earth Leakage Circuit breaker)
4. RLA is measured during each individual compressor test condition.
MCA : Minimum Circuit Amperes (A)
MOP : Maximum rating Over current Protective device
RLA : Rated Load Amperes (A)
FLA : Full Load Amperes (A)
S/Heater: Sanitary Water Tan Heater
Circuit Breaker Specification
• Select a power source that is capable of supplying the current required by the AWHP.
• Use a recognized circuit breaker between the power source and the unit.
A disconnection device to adequately disconnect all supply lines must be fitted.
• Capacity of circuit breaker recommended.
• Separate main power supply and heater supply.
Wiring Procedure for Power Cable for outdoor unit only
Step 1.
: Disassemble the side panel from the outdoor unit by loosing screws.
Step 2.
: Connect Power cable to Main Power Terminal
See below figure for detailed information. When connecting earth cable, the diameter
of cable should be bigger than 1.6mm
2
to secure safety. The earth cable is connected
to the terminal block where earth symbol
is marked.
Step 3.
: Use cable clamps (or cord clamps) to prevent unintended move of Power cable.
Step 4.
: Reassemble the side panel to the outdoor unit by fastening screws.
Do not connect cable at terminal block where plate name is “To Indoor Unit”.
When connecting power cable, make sure the
rubber bushes are properly attached in knock-out
holes after removing the Insulation pad.
Cable Clamp
(or Cord Clamp)
Cable Clamp
(or Cord Clamp)
Insulation pad
Side Panel
Main Power Terminal
(Terminal for Power Cable)
Model
Power Supply
Core Component Elec-
trical Spec.
MCA, MOP & Circuit Breaker
Compressor
For Heat Pump
RLA(A)
FLA(A)
MCA(A)
MOP(A)
Circuit
Breaker(A)
Outdoor Unit
AHUW146A2
1Φ 220-240V 50Hz
17
25
22
40.3
40
1,MFL69676201,영영 2017. 3. 8. 영영 3:07 Page 51
