Johnson Controls HVAHP060B21S - Page 63

OUTDOOR UNITS
TC-16001-rev.5
2-45
•
Communication Cabling
NOTES:
1. If an alarm is indicated on the LCD of outdoor unit, follow the "7-segment" display at the outdoor unit for verication
purposes.
2. Perform a function setting at the outdoor unit.
3. Maximum number of refrigerant groups with one central controller is 64 (for H-LINK II).
Maximum number of indoor units to be connected is 160 (for H-LINK II).
Outdoor Unit
Refrigerant Group 1 Refrigerant Group 2
TB
1
12L
1
L
2
Outdoor Unit
TB
1
12L
1
L
2
TB
1
TB
2
TB
1
TB
2
TB
1
TB
2
BA21 L1
L
2NBA21 L1
L
2NBA21 L1
L
2N
Unit No. 0 Unit No.1 Unit No. 2
Indoor UnitIndoor UnitIndoor Unit
Communication Cable
for H-LINK System
Communication Cable
for H-LINK System
TB
1
TB
2
TB
1
TB
2
TB
1
TB
2
BA21 L1
L
2NBA21 L1
L
2NBA21 L1
L
2N
Unit No. 0 Unit No.1 Unit No. 2
Indoor UnitIndoor UnitIndoor Unit
Figure 2.2 Instruction for Electrical Wiring Connection
TB1
Main Switch
Main Switch
TB1
12
12AB
TB2
12AB
TB2
TB1
N
No. 0
Indoor Unit
No. 1
Indoor Unit
Distribution Box or Pull Box Distribution Box or Pull Box
GFCI
GFCI
GFCI
GFCI
S
S
Outdoor Unit
Ground
Communication
Cable for
Wired Controller
Wired
Controller
Wired
Controller
No. 0 System Indoor Units No.1 System Indoor Units
1
208/230V 60Hz
TB : Terminal Block
PCB : Printed Circuit Board
: Power Supply Wiring
: Communication Cable
DC5V (Non-Pole Communication H-LINK System
)
: Field-Supplied
: Optional Accessory
1
208/230V 60Hz
L1 L2
L1 L2NL1 L2
Communication
Cable for
Wired Controller