System Design; Electrical Work - Mitsubishi Electric PWFY-P200VM-E-AU Data Book

System Design

V

1. Electrical work

(1) General cautions
Warning:
Electrical work should be done by qualifi ed electrical engineers in accordance with "Engineering Standards
For Electrical Installation" and supplied installation manuals. Special circuits should also be used. If the power
circuit lacks capacity or has an installation failure, it may cause a risk of electric shock or fi re.
1. Be sure to take power from the special branch circuit.
2. Be sure to install an earth leakage breaker to the power.
3. Install the unit to prevent that any of the control circuit cables (remote controller, transmission cables, or external
input/output line) is brought in direct contact with the power cable outside the unit.
4. Ensure that there is no slack on all wire connections.
5. Some cables (power, remote controller, transmission cables external input/output line) above the ceiling may be
bitten by mouses. Use as many metal pipes as possible to insert the cables into them for protection.
6. Never connect the power cable to leads for the transmission cables. Otherwise the cables would be broken.
7. Be sure to connect control cables to the indoor unit, remote controller, and the outdoor unit.
8. Be sure to ground the unit.
Select control cables from the conditions given in page 56.
9.
Caution:
Be sure to put the unit to the ground on the outdoor unit side. Do not connect the earth cable to any gas pipe,
water pipe, lightening rod, or telephone earth cable. Incomplete grounding may cause a risk of electric shock.
(2) Power supply for PWFY unit
(2)-1 Electrical characteristics of PWFY unit
• Power supply cords of appliances shall not be lighter than design 245 IEC 57 or 227 IEC 57.
• A switch with at least 3 mm contact separation in each pole shall be provided by the Air conditioner installation.
Model
PWFY-P100VM-E-BU
Model
PWFY-P100VM-E-AU
PWFY-P200VM-E-AU
(2)-2 Power cable specifi cations
Minimum wire thickness (mm
Model
Main cable
PWFY-P100VM-E-BU
Model
Total
PWFY-P100VM-E-AU
operating
PWFY-P200VM-E-AU
current
[Fig. V. 1.(2).1]
PWFY-P100VM-E-BU
(A) (B)
(C)
Caution:
Do not use anything other than the correct capacity breaker and fuse. Using fuse, wire or copper wire with too
large capacity may cause a risk of malfunction or fi re.
Power supply
Hz Volts
Voltage range
Max. 264 V
50/60 220-230-240 V
Min. 198 V
Hz
Volts
50/60
220-230-240 V
2
)
Ground
branch
2.5 2.5
-
Minimum wire thickness (mm
Main cable branch
16 A or less
1.5 1.5
25 A or less
2.5 2.5
32 A or less
4.0 4.0
PWFY-P100,200VM-E-AU
(A) (B)
PE
Output (kW)
MCA (A)
1.0
15.71
Power supply
Voltage range
Max. 264 V
Min. 198 V
Breaker for
current leakage
30 A 30 mA 0.1 sec or less
2
Breaker for current
)
leakage
Ground
1.5 20 A 30 mA 0.1 sec. or less
30 A 30 mA 0.1 sec. or less
2.5
40 A 30 mA 0.1 sec. or less
4.0
(E) (E)
(D) PE (D) PE (D)
- 56 -
Compressor
SC (A)
1.25
Cooling
MCA (A)
0.068-0.065-0.063
0.085
Local swich (A)
Breaker for wiring (NFB) (A)
capacity fuse
25
25
Local swich (A)
Breaker for wiring (NFB) (A)
capacity fuse
16
16
25 25
32
32
(A) Breaker for current leakage
(B) Local switch or breakers for wiring
(C) PWFY-P100VM-E-BU
(D) PWFY-P100, 200VM-E-AU
PE
(E) Pull box
RLA (A)
Heating
11.63-11.12-10.66
RLA (A)
Heating
30
20
30
40