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MULTI V
Modular Heat Pump
4. Electric Characteristics
Wiring of Main Power Supply and Equipment Capacity
1. Use a separate power supply for the Outside Unit and Indoor Unit.
2. Bear in mind ambient conditions (ambient temperature,direct sunlight, rain liquid,etc.) when proceeding with the
wiring and connections
3. The wire size is the minimum value for metal conduit wiring. The power cord size should be 1 rank thicker taking
into account the line voltage drops. Make sure the power-supply voltage does not drop more than 10%.
4. Specific wiring requirements should adhere to the wiring regulations of the region.
5. Power supply cords of parts of appliances for outdoor use should not be lighter than polychloroprene sheathed
flexible cord (design 60245 IEC57).
6. Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power
supply.
WARNING
•
Follow ordinance of local regulation for technical standard related to electrical equipment, wiring
regulations and guidance of each electric power company.
•
Make sure to use specified wires for connections so that no external force is imparted to terminal
connections. If connections are not fixed firmly, it may cause heating or fire.
•
Make sure to use the appropriate type of overcurrent protection switch. Note that generated overcurrent
may include some amount of direct current.
•
Some installation site may require attachment of an earth leakage breaker. If no earth leakage breaker
is installed, it may cause an electric shock.
CAUTION
•
Do not use anything other than breaker and fuse with correct capacity. Using fuse and wire or copper
wire with too large capacity may cause a malfunction of unit or fire.
ARUN050LMC0
Unit
Model
Hz
Volts
5 HP
50
380-415
ARUN050GME0
Unit
Model
Hz
Volts
5 HP
50
220-240
Note
1. Voltage supplied to the unit terminals should be within the minimum and maximum
range.
2. Maximum allowable voltage unbalance between phase is 2%.
3. MSC means the Max. current during the starting of compressor.
4. MSC and RLA are measured as the compressor only test condition.
5. OFM are measured as the outside unit test condition.
6. TOCA means the total over current value of each outside unit.
7. Select the wire size based on the larger value among MCA or TOCA.
8. MFA is used to select the circuit breaker and ground fault circuit interrupter, and
recommended circuit breaker type is ELCB(Earth Leakage Circuit Breaker).
9. Select the electrical equipment of combination unit according to the electrical
characteristics of individual unit.
Power Supply
Voltage-range
MCA TOCA MFA
Min.:342, Max.:456
12.1
Power Supply
Voltage-range
MCA
Min:198, Max:264
7.50
COMP
MSC
RLA(Cooling) RLA(Heating)
13.0
20
4.5
7.0
COMP
MFA
MSC
RLA(Cooling) RLA(Heating)
15
-
-
Symbols
MCA : Minimum Circuit Amperes (A)
TOCA : Total Over Current Amperes (A)
MFA : Maximum Fuse Amperes (A)
MSC : Maximum Starting Current (A)
RLA : Rated Load Amperes (A)
OFM : Outside Fan Motor
kW : Fan Motor rated output (kW)
FLA : Full Load Amperes (A)
Product Data
OFM
kW
FLA
8.0
-
-
OFM
kW
FLA
-
0.40 × 2
3.0 × 2
7
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