101
Service manual
Daikin R32 Rooftops UATYA-B
ESIE21-02 – 2021.03
4.3 Function alarms
Alarms linked to the functions managed by the controller are described below.
4.3.1 Fire/smoke alarm
When the controller senses special conditions in the room, it behaves accordingly, based on the set parameters. The room
conditions are detected by sensors installed in the room and the sensed information is sent to the controller through digital
inputs.
The parameters involved are shown in the table.
The values of the parameters are representative. In specific cases, different values can be set.
Parameter Value UM
Description
PAL43
5
s
Fire/Smoke - Activation delay
PAL44
1
s
Fire/Smoke - De-activation delay
PAL45
0
-
Fire/Smoke - Max. number of alarms per hour
PAL46
0
-
Fire/Smoke - Action in presence of an alarm
The values parameter “PAL46” can have are the following:
-
0 = warning message only;
-
1 = full unit stop;
-
2 = unit stop, excluding ventilation unit.
Fire/smoke alarm
Alarm code
AL159
Reason for activation
When the relevant digital input is open after the delay setpoint in parameter “PAL43”
Reset
Upon closing of the digital input after the delay set in parameter “PAL44”
Reset mode
Automatic; switches to manual after the trip occurrences per hour set in “PAL45”
Alarm icon
Flashing
AlarmLog
Yes
Alarm relay
Based on “alarm.conf” file
Devices
Behaviour in the event of an alarm
All devices
According to setpoint in parameter “PAL46”
Fire damper
Closing of digital output for fire damper control
4 Alarms
Содержание UATYA-B
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