Carrier CRF-30-CM, Installation & Owner'S Manual

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1.4 System wiring instruction
E F F F F
2 2 1 1
T N F1 F2 E X Y E
POWER
POWER
POWER
Network air conditioner wiring diagram (two types for indoor unit: one is the main control board
with an external network interface module; the other is the network interface module is built in the
main control board).
RS232 pin buckle: insert the COM port of computer
RS485-to-RS232
module
Other centralized
controllers
Matched resistance of
communication
terminal 120
Ω
Matched resistance of
communication
terminal 120
Ω
Matched resistance of
communication
terminal 120
Ω
Matched resistance of
communication
terminal 120
Ω
Matched resistance of
communication
terminal 120
Ω
Matched resistance of
communication
terminal 120
Ω
Centralized
controller
Centralized
controller
Centralized
controller
One computer can connect 16 centralized controllers at most
A centralized controller can connect 64 indoor units at most
A centralized controller can connect 64 indoor units at most
A centralized controller can connect 64 indoor units at most
Reliably ground the shielding terminal
Reliably ground the shielding terminal
Reliably ground the shielding terminal
Indoor unit Indoor unit Indoor unit
Indoor unit Indoor unit
Indoor unit Indoor unit Indoor unit
Indoor unit Indoor unit
Indoor unit Indoor unit Indoor unit
Indoor unit Indoor unit
Electronic
control box Electronic
control box Electronic
control box
Electronic
control box Electronic
control box
Electronic
control box Electronic
control box Electronic
control box
Electronic
control box
Electronic
control box Electronic
control box Electronic
control box
Electronic
control box
Electronic
control box
Electronic
control box
Fig.1.4 Wiring diagram
Installation & Owner
‘
s Manual
5