1-3.Power Cable Specifications - Mitsubishi Electric CITY MULTI H Series Manual

1. Electrical work
1-2-2. Electrical characteristics of Outdoor unit of cooling mode
PUHY-HP-T(S)HMU
Model Unit Combination
PUHY-HP72THMU-A
PUHY-HP96THMU-A
PUHY-HP72THMU-A
PUHY-HP
144TSHMU-A
PUHY-HP72THMU-A
PUHY-HP96THMU-A
PUHY-HP
192TSHMU-A PUHY-HP96THMU-A
1-3. Power cable specifications
Thickness of wire for main power supply, ON / OFF capacities
3-phase 3-wire, 208V,60Hz
P72
PUHY-HP-THMU
P96
Indoor unit
1. Use a separate power supply for the outdoor unit and indoor unit.
2. Bear in mind ambient conditions (ambient temperature,direct sunlight, rain water,etc.) when proceeding with the wiring and connections.
3. The wire size is the minimum v alue f or metal conduit wiring. The power cord size should be 1 rank thicker consideration of 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 shall not be lighter than polychloroprene sheathed flexible cord (design 245 IEC57). For example,
use wiring such as YZW.
6. A switch with at least 3 mm [1 / 8 in] contact separation in each pole shall be provided by the Air conditioner installation.
WARNING
Be sure to use specified wires to connect so that no external force is impar ted to terminal connections. If connections are not fixed firmly, it may cause
heating or fire.
Be sure to use the appropriate type of overcurrent protection switch. Note that generated over current may include some amount of direct current.
CAUTION
A breaker for current leakage must be attached to the power supply. If no earth leakage breaker is installed, it may cause an electric shock.
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.
Hz Volts Voltage range
60Hz 208 / 230V
208 / 230V
60Hz
60Hz 208 / 230V
188 to 253V
60Hz 208 / 230V
60Hz 208 / 230V
60Hz 208 / 230V
2
Minimum wire thickness (mm / AWG)
Main cable Branch Ground
13.3 / 6 13.3 / 6
21.2 / 4 21.2 / 4
2.1 / 14 2.1 / 14 2.1 / 14
SYSTEM DESIGN
Symbols: MCA : Min. Circuit Amps
SC : Starting Current
Outdoor Units
RLA(A) RLA(MAX)(A)
MCA(A)
19.4 / 17.6 38.4 / 38.4 53
71
28.2 / 25.5 52.4 / 52.4
19.4 / 17.6 38.4 / 38.4 53
19.4 / 17.6 38.4 / 38.4 53
28.2 / 25.5 52.4 / 52.4 71
28.2 / 25.5 52.4 / 52.4 71
Switch (A)
Capacity Fuse
60 60
75 75
15 15
RLA : Rated Load Amps
Compressor
Max. Fuse(A) Output(kW) SC(A) Output(kW)
60 5.3 15
75 6.7
15
60 5.3 15
60 5.3 15
75 6.7 15
75 6.7 15
Breaker for
Breaker for current leakage
wiring (NFB)
60 60 A 100 mA 0.1 sec. or less
75 75 A 100 mA 0.1 sec. or less
15 20 A 30 mA 0.1 sec. or less
DATA U5
Fan
0.92
0.92
0.92
0.92
0.92
0.92
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