Carrier service manual R410a DC Inverter 60Hz
Installation 149
7.3.3 Signal wire of centralized control
Signal wire of centralized control
When centralized control is needed, one CCM03 (central controller of indoor unit) can only control the
indoor units which are in the same refrigerant system via the port X Y E of outdoor unit. Outdoor unit
will automatically distribute the address to indoor units without any manual setting. Remote controller
can enquiry and modify every indoor unit address.
The diagram below shows the connection of signal wire in this case:
Besides, CCM03 can also connect indoor units via the port X Y E of indoor unit. However, one more
group of wire(X Y E between indoor units) is needed; it is more complex and not suggested. Anyway, the
diagram below shows the connection of signal wire in this case:
(H1,H2,E)(X,Y,E)
(K1,K2,E)
(H1,H2,E) (H1,H2,E)
(P,Q,E)
(P,Q,E) (P,Q,E) (P,Q,E)
Max.64
(K1,K2,E) (K1,K2,E) (K1,K2,E)
Previous
Pageup
PagedownNext
query
Set
Module
Ok
AddressLock
M
(F1,F2,E)
To RS485/RS232
Converter
(Master)
(Slave)
(Slave)
(Slave)
(F1,F2,E)
To RS485/RS232
Converter
P
Q
120Ω
resistor
Indoor Unit Indoor Unit Indoor Unit Indoor Unit
CCM03
CCM02
(H1,H2,E) (H1,H2,E) (H1,H2,E)
(P,Q,E)
(P,Q,E) (P,Q,E) (P,Q,E)
Max.64
(K1,K2,E) (K1,K2,E) (K1,K2,E)
(X,Y,E)(F1,F2,E)
To RS485/RS232
Converter
(Master)
(Slave)
(Slave)
(Slave)
(K1,K2,E)
Previous
Pageup
PagedownNext
query
Set
Module
Ok
AddressLock
M
(F1,F2,E)
To RS485/RS232
Converter
P
Q
120Ω
resistor
(X,Y,E)
(X,Y,E) (X,Y,E)
Indoor Unit Indoor Unit Indoor Unit Indoor Unit
CCM03
CCM02