7.5 Input/Output contact
7.5.1 Heating/Cooling mode remote contact
Heating/Cooling operating mode can be managed from a remote contact.
If remote Heating/Cooling changeover is enabled by Par5124, the operating mode cannot be changed by the
Remote controller.
Note: Heating/Cooling remote contact will be used when the operation of HP unit is turned ON by ON/OFF remote
contact. It is not available if ON/OFF remote contact is OFF, and set Par5120=0.
Parameters
Level
Parameter
Function description
Display & Input value
Remarks
Group Code
Default
min.
Max.
Unit
I
31
01
D HW production priority setting
0=DHW is unavailable
1= DHW is available, and priority DHW over space
Heating
2= DHW is available, and priority space Heating over
DHW
0
0
2
-
I
51
20
Terminal 20-21 : ON/OFF remote contact or EHS Alarm
input
0=disable (Remote controller only)
1=ON/OFF remote contact
2=EHS Alarm input
0
0
2
-
ON/OFF by
Remote controller
0=enable
1= ON/disable
OFF/enable
2=enable
I
51
24
T erminal 24-25 : Heating/Cooling mode remote contact
0=disable (Remote controller only)
1= Cooling is CLOSE contact, Heating is OPEN
contact
2= Cooling is OPEN contact, Heating is CLOSE
contact
0
0
2
-
Heating
Cooling
mode
Heating/Cooling remote contact
Contact OPEN = Heating
Contact CLOSE = Cooling
24
25
PCB(Terminal)
72
7. Unit Management
Summary of Contents for AEYC-0639U-CH
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