Fujitsu AJ 126LELDH Series Design & Technical Manual page 773

6. Confirm transmission wiring system.
Confirm your transmission wiring system if transmission wiring system is ensured wiring rule.
Check list
□ Total transmission wiring length
□ Total number of unit
NOTE: For details, refer to
¢ Wiring method
Practical transmission wiring method is shown below.
Each terminal has to be connected the following rules.
To other refrigerant circuit outdoor unit
Outdoor unit
*1
Power supply
*2
Breaker
Power supply
• X1, X2: Indoor units to outdoor unit
• Z1, Z2: Connection for different refrigerant circuit of outdoor unit
• *1: The number of power supply terminal is different depending on the indoor unit model.
• *2: Ground the remote controller if it has a ground wire.
4-3. Transmission cable
"VRF network system"
Power supply
Breaker
Case of Case of
AJ*xxxLBL*H
AJ*xxxLEL*H
Indoor unit
*1
Power supply
Remote control
Power supply
Remote
control unit
on page 06-4.
Power supply
Breaker
Indoor unit
Remote control
*2
Breaker
Remote
control unit
- (06-59) -
Indoor unit
*1
Power supply
Remote control
Breaker
Power supply
Remote
control unit
4. Wiring design
*2