ABB i-bus KNX Yucus YUB/U1.0.1 Series Technical Reference Manual page 166

KNX Technical Reference Manual
ABB i-Bus ® KNX Yucus
conditioner system, device would not be able to have full control of the temperature
setpoint of the VRV air conditioner system.
12.36.18 Changing set values – Min. setpoint
Options
This parameter is used to define the minimum temperature adjustment of the VRV mode.
Please refer to the VRV air conditioning system manual to obtain the lowest temperature
that can be set by the VRV air conditioner system. If the minimum temperature define by
this parameter does not match the minimum temperature that can be set by the VRV air
conditioner system, device would not be able to have full control of the temperature
setpoint of the VRV air conditioner system.
12.36.19 Fault display – Activate VRV Temperature sensor Fault Display 1 bit
Options
This parameter will define whether can the device receive a 1bit fault alarm datapoint. If
it is activated and device receive a 1bit fault alarm datapoint. VRV mode will display the
alarm message of "temperature sensor failure". From the moment onward, all VRV mode
control will be locked and only page turning operations are supported until the fault alarm
is resolve. When the fault alarm is removed, device will return back to normal operations.
12.36.20 Fault display – Activate VRV Fault Display 1 Byte
Options
This parameter will define whether can the device receive a 1Btye fault alarm datapoint.
If it is activated and device receive a 1btye fault alarm datapoint. VRV mode will display
the alarm message of " air conditioning equipment failure". From the moment onward, all
VRV mode control will be locked and only page turning operations are supported until the
fault alarm is resolve. When the fault alarm is removed, device will return back to normal
operations.
12.36.21 Fault display – The code number to release alarm
Options
This parameter will define the value (such as 0) to clear the alarm corresponding to the
"air conditioning equipment failure". As there are many different types and brands of VRV
air conditioner system KNX protocol interface gateway in the market, the 1Byte value
corresponding to clear the alarm could also be different. Therefore, please refer to the
VRV air conditioning system KNX protocol interface gateway manual to obtain the correct
corresponding 1Byte value for clearing the alarm. Once the "air-conditioning equipment
failure" group object receives the value corresponding to the code number to release
alarm, the "air-conditioning equipment failure" state will be removed.
(°C)
Input from 0-40
Activate
Deactivate
Activate
Deactivate
Input from 0-255
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