Wiring Diagram (Indoor/Ccm) - York R-410A Technical & Service Manual

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8.5 Wiring Diagram (Indoor/CCM)

RS232 connector:Connect
with computer COM plug
DCM ( RS485 t o RS232)
Other Central
controller
L
Power 220V～
Query
MODE
Error Code
Protection code
Operation status
Cent r ol cont r ol l er
L N
Power 220V～
Query
MODE
Error Code
Protection code
Operation status
Cent r ol cont r ol l er
Note: The 120 ohm resistance can be cancelled because we have strengthened the anti-
interfere capacity in the program.
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NO . 1I ndoor uni t
N P1 Q 1 E Y X
Network wiring Control wiring
Group Operation Setting
All In Group
Online units ON OFF
AUTO
Fan
Room Temp.
Set Temp.
OFF
ON
In Group
Current Function C onflict
Seting failure
NO . 6I ndoor uni t
P1 Q 1 E Y X
Network wiring Control wiring
Group Operation Setting
All In Group
Online units ON OFF
AUTO
Fan
Room Temp.
Set Temp.
OFF
ON
In Group
Current F unction Conflict
Seting failure
treatment
120Ω
E- Par t Box
X
Y E
PCB
NFM PCB
NO . 2I ndoor uni t
E- Par t Box
X Y E
PCB
NFM
NO . 6I ndoor uni t
120Ω
E- Par t Box
X Y E
PCB
NFM PCB
NO . 5I ndoor uni t
E- Par t Box
X Y E
PCB
NFM
NO . 1I ndoor uni t
- 286 -
Installation
E- Par t Box
X Y E
NFM
E- Par t Box
X Y E
PCB
NFM
NO . 5I ndoor uni t
E- Par t Box
X Y E
NFM
E- Par t Box
X Y E
PCB
NFM
NO . 2I ndoor uni t
E- Par t Box
X Y E
PCB
NFM
NO . 3I ndoor uni t
E- Par t Box
X Y E
PCB
NFM
NO . 4I ndoor uni t
E- Par t Box
X Y E
PCB
NFM
NO . 4I ndoor uni t
E- Par t Box
X Y E
PCB
NFM
NO . 3I ndoor uni t