7.5.3 ON/OFF remote contact
HP unit can be turned ON/OFF by remote contact with timer or thermostat in the room.
In case the Remote controller is not connected, HP unit will be turned ON/OFF according to remote contact.
In case the Remote controller is connected, if both Remote controller and remote contact are not ON, HP unit will
not be turned ON.
During operation with both the Remote controller and remote contact ON, if one of either the Remote controller or
remote contact is turned OFF, then the HP unit will be turned OFF as well.
Note: The frost protection is active even when the unit is switched OFF from the remote contact.
ON/OFF remote contact
Contact OPEN = HP unit OFF
Contact CLOSE = HP unit ON
20
21
PCB(Terminal)
ON/OFF
or
EHS Alarm
Parameters
HP unit states by ON/OFF of Remote controller and remote contact
Level
Parameter
Function description
Display & Input value
Remarks
Group Code
Default
min.
Max.
Unit
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
Remote controller connected
Remote controller not connected
Remote controller
remote contact
HP unit states
remote contact
HP unit states
ON
ON
→
ON
ON
→
ON
ON
OFF
→
OFF
OFF
→
OFF
OFF
ON
→
OFF
OFF
OFF
→
OFF
75
7. Unit Management
Summary of Contents for AEYC-0639U-CH
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