Technical data

108
• Control systems
• intelligent Touch Manager • ED721208
Connection Method
Correct Wiring
• Serieswiringmethodonlyshouldbeused.
[Example]
Centralized
Control
Equipment
VRV Outdoor unit
VRV Indoor unit
Connect the centralized control equipment to the outdoor-outdoor connection.
Connect outdoor units without branch connection.
Indoor-outdoor
connection
Connect indoor units and outdoor units without branch connection.
Outdoor-outdoor
connection
IN/OUT
F1 F2
OUT/OUT
F1 F2
IN/OUT
F1 F2
IN/OUT
F1 F2
OUT/OUT
F1 F2
OUT/OUT
F1 F2
Caution:
Be sure to have indoor-outdoor control wiring and that of refrigerant system coincide.
Crossed wiring will cause malfunctioning.