Mitsubishi Electric City Multi PUMY-P-VHM Serie Manual De Instalación página 10

6. Electrical work
6.4. Wiring of main power supply and equipment capacity
Schematic Drawing of Wiring (Example) (Fig. 6-4)
A
~/N 220 - 240 V 50 Hz
~/N 220 V 60 Hz
A
~/N 220 - 240 V 50 Hz
~/N 220 V 60 Hz
Thickness of Wire for Main Power Supply and On/Off Capacities
Model
~/N 220 - 240 V 50 Hz
P100-140
Outdoor Unit
~/N 220 V 60 Hz *2
~/N 220 - 240 V 50 Hz
Indoor Unit
*1. A breaker with at least 3.0 mm contact separation in each poles shall be provided. Use non-fuse breaker (NF) or earth leakage breaker (NV).
*2. Max. Permissive System Impedance 0.22 (Ω)
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 value for 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. Install an earth longer than other cables.
Warning:
• Be sure to use specified wires to connect so that no external force is imparted 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 overcurrent may include some amount of direct current.
Caution:
• Some installation site may require attachment of an earth leakage breaker. 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.
IMPORTANT
Make sure that the current leakage breaker is one compatible with higher harmonics.
Always use a current leakage breaker that is compatible with higher harmonics as this unit is equipped with an inverter.
The use of an inadequate breaker can cause the incorrect operation of inverter.
10
A : Switch (Breakers for Wiring and Current Leakage)
B
B : Outdoor Unit
C : Pull Box
D : Indoor Unit
D D
Fig. 6-4
Minimum Wire Thickness (mm
Power Supply
Main Cable
5.5 (6)
1.5
~/N 220 V 60 Hz
C
D D
2 )
Breaker for
Wiring*1
Branch Ground
– 5.5 (6)
32 A
1.5 1.5 15 A
Breaker for Current Leakage
32 A 30 mA 0.1 sec. or less
15 A 30 mA 0.1 sec. or less