Mitsubishi Electric PAC-IF012B Technical Manual page 59

2.1.2. Separate FTC unit/outdoor unit power supplies
The following connection patterns are available.
The outdoor unit power must be powered properly (Details are shown in its installation manual).
D
L
A B C G
N
S1
S2
S3
Photo.2-3
FTC unit model
FTC unit power supply
FTC unit input capacity
Main switch (Breaker)
FTC unit power supply & earth
FTC unit-Outdoor unit
FTC unit-Outdoor unit earth
FTC unit L-N
FTC unit-Outdoor unit S1-S2
FTC unit-Outdoor unit S2-S3
*1. A breaker with at least 3.0mm contact separation in each pole shall be provided. Use earth leakage breaker (NV).
*2. Max. 120 m
*3. The fi gures are NOT always against the ground.
Notes: 1. Wiring size must comply with the applicable local and national code.
2. Power supply cables and FTC 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.
A
F
B
L
C Wiring circuit breaker or isolating switch
B C
N
D Outdoor unit
E
S1
F
S2
G FTC unit power supply
S3
E
CNS2
PAC-IF021B-E
~/N (Single Phase), 50 Hz, 230 V
*1 16 A
3 × Min. 1.5
*2 2 × Min. 0.3
–
*3 AC 230 V
*3 –
*3 DC24 V
Outdoor unit power supply
Earth leakage breaker
FTC unit/outdoor unit connecting cables
FTC unit
If the FTC and outdoor units have separate power supplies, refer
to the table below.
FTC unit controller connector
(CNS2) connection change
Outdoor unit DIP switch set-
tings (when using separate FTC
unit/outdoor unit power supplies
only)
Power Supply Cables
59
Separate power supply specifi cations
Disconnected
ON
OFF 1 2
Set the SW8-3 to ON.
TB6
S1 S2 S3
L N
E: FTC unit/outdoor unit
connecting cable
3
(SW8)