47
●
Communication wire
TB
1
TB
2
TB
1
TB
2
1 2 3 4
L
1
L
2
L
3
N
1 2 3 4
L
1
L
2
L
3
N
B A 2 1 L
N
TB
2
B A 2 1 L N
TB
2
TB
1
B A 2 1 L N
TB
2
TB
1
TB
1
TB
2
TB
1
TB
2
L
1
L
2
L
3
N
1 2 3 4
1 2 3 4
L
1
L
2
L
3
N
B A 2 1 L N
TB
2
TB
1
B A 2 1 L N
TB
2
TB
1
B A 2 1 L N
TB
2
TB
1
H-LINK II
Refrigerant group 1
Refrigerant group 2
Outdoor unit
(main)
Outdoor unit
(sub)
Outdoor unit
(main)
Outdoor unit
(sub)
Communication wire
0 # Unit
1 # Unit
2 # Unit
Indoor unit
Indoor unit
Indoor unit
0 # Unit
1 # Unit
2 # Unit
Indoor unit
Indoor unit
Indoor unit
Communication cable
(main-sub)
TB
1
Remarks:
1.
For modular combination units (26 HP ~ 96 HP), set the master-slave through DSW.
2. An alarm will appear if the communication wires between the outdoor units are connected to the terminal 1 and 2 of H-LINK II.
3. If there is an alarm on the LCD of the master outdoor unit, please go through spot check according to 7-segement code indica-
tion of the master outdoor unit
.
4. Set the function for master outdoor unit.
5. Connectable a maximum of refrigerant groups with one central controller is 64 .
For H- Link II Maximum number of indoor unit connectable is 160.
6. Wire specifications
* Transmission Wire: 2-Wire
* Polarity of Transmission Wire: Non-Polar Wire
* Maximum Wiring Length: Total 1,000m
* Recommended Cable: Twist-Pair Cable with Shield, over 0.75mm
2
* Voltage: DC5V
TB1
TB1
TB2
L1L2 L3 N
L1 L2 L3 N
TB2
1 2 3 4
1 2 3 4
TB1
1 2 A B
1 2 A B
TB2
TB2
TB1
L N
ELB
ELB
ELB
TB : Terminal block
PCB : Print circuit board
: Power supply wiring
: communication cable (Shielded twist 2-Conductor)
DC5V (non-pole, communication H-LINK system)
: Optional accessory
* : Field-supplied
L N
Outdoor unit A (main)
Outdoor unit B (sub)
Earth
Earth
Earth
*Main switch
*Main switch
*Main switch
*Breaker
*Breaker
*Breaker
* Earth leakage
breaker
* Earth leakage
breaker
* Earth leakage
breaker
380-415V
3N ~ 50Hz
380-415V
3N ~ 50Hz
220V ~ 50Hz
Distribution box
Distribution box
*Communication
cable for wired
controller
(Shielded twist
2-Conductor)
Wired controller
Earth
Earth
*Communication
cable for wired
controller
(Shielded twist
2-Conductor)
Wired controller
No. 0 system indoor unit
No. 1 system indoor unit
No. 0 indoor unit
No. 1 indoor unit
Figure 7.2 Electrical Wiring Instructions