Electrical Work - Mitsubishi Electric PAC-IF031B-E Installation Manual

4. Electrical work

A
4.1.1. FTC2 unit power supplied from outdoor unit
The outdoor unit must be powered properly. (Details are shown in its installation manual.)
A B C
FTC2 unit model
FTC2 unit-Outdoor unit
FTC2 unit-Outdoor unit earth
FTC2 unit-Outdoor unit S1-S2
FTC2 unit-Outdoor unit S2-S3
*1. Max. 80 m
*2. The fi gures are NOT always against the ground.
S3 terminal has DC 24 V against S2 terminal. However between S3 and S1, these terminals are not electrically insulated by the transformer or other device.
Notes: 1. Wiring size must comply with the applicable local and national codes.
2. Power supply cables and FTC2 unit/outdoor unit connecting cables shall not be lighter than polychloroprene sheathed fl exible
cable. (Design 60245 IEC 57)
3. Install an earth wire longer than other cables.
RG79D525H01_EN.indd 7 RG79D525H01_EN.indd 7
C C
Photo. 4-1
E B
D F
L
N
S1
S1
S2 S2
S3 S3
E
Photo. 4-2
*1
*1
*2
*2
4.1. FTC2 (Photo. 4-1)
1. Remove the cover.
2. Wire the power cable and control cable separately through the
respective wiring inlets given in the photo.
• Make sure to put screws tightly.
A Inlet for control cable
B Inlet for power cable
C Clamp
D FTC2 / Outdoor unit connecting terminals
E Earth terminal
D
A Outdoor unit power supply
B Earth leakage breaker
C Wiring circuit breaker or isolating switch
D Outdoor unit
E FTC2 unit/outdoor unit connecting cables
F FTC2 unit
TB6
S1
L N
Earth cable
PAC-IF031B-E
3 × 1.5 (polar)
1 × Min.1.5
AC 230 V
DC24 V
S2 S3
E: FTC2 unit/outdoor unit
connecting cables
7
2009/04/10 9:24:29 2009/04/10 9:24:29