York R-410A - Wiring Diagram (Indoor;CCM)

Installation
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8.5 Wiring Diagram (Indoor/CCM)
Cent r ol cont r ol l er
Network wiring Control wiring
X
Cent r ol cont r ol l er
RS232 connector:Connect
with computer COM plug
Room Temp.
Power 220V～
Setting
Group O peration
Query
Conflict
Seting failure
ON
Protection code
Error Code
Operation status
In Group
Current Function
All In Group
Online units
Set Temp.
Room Temp.
AUTO
MODE
Fan
OFF
ON
OFF
P1L N EQ1 Y
Operation status
Error Code
Protection code
Set Temp.
ON
Seting failure
FunctionCurrent
Conflict
In Group
OFF
DCM( RS485 t o RS232)
L
MODE
Powe r 2 2 0V～
Query
Other Central
controller
Network wiring Control wiring
Operation
Online units
All In Group
Fan
AUTO
Group
ON OFF
Setting
N P1 Q1 E Y
NF M
X
E-Part Box
NO. 1I ndoor uni t
PCB
NF M
X
YE
E- Pa r t Bo x
NO. 2I ndoor uni t
PCB
X
Y
PCB
NO. 6I ndoor uni t
E
NF M
X
Y
E- Pa r t Bo x
120Ω
NO. 5I ndoor uni t
PCB
NF M
Y
X
E
E- Pa r t Bo x
NO. 3I ndoor uni t
E
E- Pa r t Bo x
PCB
NF M
X
Y
E
PCB
NO. 4I ndoor uni t
NF M
Y
X
E
E-Part Box
NF M
treatment
E
X
Y
NO. 6I ndoor uni t
PCB
NF M
E- Pa r t Bo x
PCB
NO. 1I ndoor uni t
E- Pa r t Bo x
120Ω
EY
X
NF M
X
NO. 5I ndoor uni t
PCB
Y
E- Pa r t Bo x
E- Pa r t Bo x
NO. 2I ndoor uni t
PCB
E
Y
X
NF M
E
E
X
Y
NO. 4I ndoor uni t
PCB
NF M
E- Pa r t Bo x
PCB
NO. 3I ndoor uni t
E- Pa r t Bo x
NF M
Y
X
E
Note: The 120 ohm resistance can be cancelled because we have strengthened the anti-
interfere capacity in the program.