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System Design
V
1. Electrical work
(1) General cautions
Warning:
Electrical work should be done by qualified 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 fire.
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.
9.
Select control cables from the conditions given in page 69.
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-E1-AU
PWFY-P200VM-E1-AU
Model
PWFY-P100VM-E2-AU
PWFY-P200VM-E2-AU
Model
PAC-SV01PW-E
(2)-2 Power cable specifications
Minimum wire thickness (mm
Model
Main cable
PWFY-P100VM-E-BU
Model
Total
PWFY-P100VM-E1/E2-AU
operating
PWFY-P200VM-E1/E2-AU
current
Model
PAC-SV01PW-E
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
Hz
Volts
50/60
220-230-240 V
Power supply
Hz
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
Minimum wire thickness (mm
Main cable
1.5
MCA (A)
Output (kW)
1.0
15.71
Power supply
Voltage range
Max. 264 V
Min. 198 V
Power supply
Voltage range
Max. 264 V
Min. 198 V
Volts
Voltage range
Max. 264 V
Min. 198 V
Breaker for
current leakage
30 A 30 mA 0.1 sec or less
Breaker for current
2
)
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
2
)
branch
Ground
1.5
- 67 -
Compressor
SC (A)
1.25
Cooling
MCA (A)
0.068-0.065-0.063
0.085
Cooling
MCA (A)
0.138-0.139-0.140
0.175
0.070-0.074-0.077
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
1.5
RLA (A)
Heating
11.63-11.12-10.66
RLA (A)
Heating
RLA (A)
Heating
RLA (A)
30
20
30
40
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