Wiring Method - Fujitsu AUYG07LVLA Design & Technical Manual

WIRING METHOD

Practical transmission wiring method is shown below.
Each terminal has to be connected by the following rules.
Example 1
Central remote
controller
1 2 3
Connection cable
Branch
box 1 (primary)
1 2 3 1 2 3 1 2 3
CENTRAL BRANCH BOX2 BRANCH BOX1
REMOTE (OUT) (OUT)
CONTROLLER
INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C
1 2 3 1 2 3 1 2 3
Indoor
unit
1 2 3
BRANCH BOX
REMOTE
CONTROL Indoor
1 2 3
unit
1 2 3
Remote
controller
Example 2
Central remote
controller
1 2 3
Connection cable
Branch
box 1 (primary)
1 2 3 1 2 3 1 2 3
CENTRAL
BRANCH BOX2 BRANCH BOX1
REMOTE (OUT) (OUT)
CONTROLLER
INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C
1 2 3 1 2 3
1 2 3
Indoor
unit
1 2 3
BRANCH BOX
REMOTE
CONTROL Indoor
1 2 3
unit
1 2 3
Remote
controller
Single-phase
L N
230V 50Hz
Max.26.5A
Breaker1
Breaker1: Earth leakage breaker
Breaker2: Circuit breaker (over current)
Breaker2
Outdoor unit
L N
BRANCH BOX
POWER
1 2 3
Branch box 2 (secondary)
1 2 3 1 2 3 1 2 3
OUTDOOR UNIT
CENTRAL BRANCH BOX2
or
REMOTE (OUT)
BRANCH BOX (IN)
CONTROLLER
POWER INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C
L N 1 2 3 1 2 3
Breaker2
Indoor
unit
Breaker1
Indoor Indoor
unit unit
L N
Single-phase
230V 50Hz
Single-phase
L N
230V 50Hz
Max.26.5A
Breaker1
Breaker1: Earth leakage breaker
Breaker2: Circuit breaker (over current)
Breaker2
Outdoor unit
L N
BRANCH BOX
POWER
1 2 3
Branch box 2 (secondary)
1 2 3 1 2 3 1 2 3
CENTRAL
OUTDOOR UNIT BRANCH BOX2
or REMOTE (OUT)
BRANCH BOX (IN)
CONTROLLER
POWER INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C
L N 1 2 3 1 2 3
Indoor Indoor
Indoor
unit unit
unit
Junction box
Breaker2
Breaker1
Breaker2: Curcuit breaker (over current)
Breaker1: Earth leakage breaker
L N
Single-phase
230V 50Hz
- (06 - 45) -
Power supply cable
Branch box 3 (secondary)
1 2 3 1 2 3 1 2 3 1 2 3
OUTDOOR UNIT
BRANCH BOX1 CENTRAL BRANCH BOX2
or
(OUT) REMOTE (OUT)
BRANCH BOX (IN)
CONTROLLER
POWER INDOOR UNIT A INDOOR UNIT B
L N 1 2 3 1 2 3
1 2 3
Breaker2
Breaker1
Indoor Indoor
unit unit
L N
Single-phase
230V 50Hz
Power supply cable
Branch box 3 (secondary)
1 2 3 1 2 3 1 2 3 1 2 3
CENTRAL
BRANCH BOX1 OUTDOOR UNIT BRANCH BOX2
(OUT) or REMOTE (OUT)
BRANCH BOX (IN)
CONTROLLER
POWER INDOOR UNIT A INDOOR UNIT B
1 2 3 L N 1 2 3 1 2 3
Indoor
Indoor Indoor
unit
unit unit
1 2 3 1 2 3
OUTDOOR UNIT
BRANCH BOX1
or
(OUT)
BRANCH BOX (IN)
POWER
L N
Breaker2
Breaker1
Indoor
unit
L N
Single-phase
230V 50Hz
1 2 3 1 2 3
BRANCH BOX1 OUTDOOR UNIT
(OUT) or
BRANCH BOX (IN)
POWER
L N
6. SYSTEM DESIGN