Daikin MICROTECH SMARTSOURCE 2300 WSHP, Руководство по интеграции, Страница: 21 / 30

ALARMS
ED 19129-1
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Table 11: BACnet Alarms by Priority
Alarm
Enumeration
Alarm Text Description Clear
Network
Reset
Details
3
1 No Alms No Alarms
2 IO Comm Fail
IO Expansion Module
Communication Fail
Auto No
The IO expansion module is not communicating
with the unit controller (baseboard) .
3 Software Err Incompatible Software Requires Reboot No Incorrect software part number or version number .
4 CnfgErr Invalid Configuration Requires Reboot No
In general, an alarm indicates one of several
conditions related to the unit controller baseboard
and IO expansion module configuration switch
settings . Details about these conditions are
provided in the table footnotes .
3
5 A2L Leak
A2L Mitigation Board Refrigerant
Leak
Auto No
The A2L mitigation board has detected a refrigerant
concentration level that requires action . When
alarm occurs, the unit enters a fan-only state and
fans run on high speed until alarm is cleared .
6 A2L No Pwr A2L Mitigation Board No Power Auto No
The 12V input from the A2L mitigation board has
been lost. When this occurs, the unit enters the off-
alarm state . All control outputs are disabled except
for reversing valves .
7 Cmp Brownout
Compressor Low Voltage
Brownout
Auto Yes
The 24V power input supplied to the baseboard is
less than 80% of the reference voltage (the voltage
level required to safely run the compressors) .
The alarm forces the unit into normal shutdown to
protect from low line voltage conditions . The alarm
automatically clears once the voltage input exceeds
the 90% reference voltage threshold . 2
8 Cmp1 Hi Pres Compressor 1 High Pressure
Manual Yes
Compressor high pressure switch indicates a high
pressure condition .
9 Cmp2 Hi Pres Compressor 2 High Pressure
10 Cmp1 Lo Pres Compressor 1 Low Pressure
Manual Yes
Compressor low pressure switch indicates a low
pressure condition for longer than the alarm delay
timer default (AV:34) .
11 Cmp2 Lo Pres Compressor 2 Low Pressure
27 Cmp1 Hi Disch Temp
Compressor 1 High Discharge
Temperature
Manual Yes
Compressor high and low pressure switches
have both opened simultaneously, indicating a
compressor high discharge temperature condition
exists .
28 Cmp2 Hi Disch Temp
Compressor 2 High Discharge
Temperature
12
Cmp1 Sctn Tmp Snsr
Flt
Compressor 1 Suction
Temperature Sensor Fault
Manual Yes
The compressor suction temperature sensor
exceeds the allowable temperature range .
13
Cmp2 Sctn Tmp Snsr
Flt
Compressor 2 Suction
Temperature Sensor Fault
14 LWT Snsr Flt
Leaving Water Temperature (LWT)
Sensor Fault
Manual Yes
The unit is configured for freeze fault detection and
the LWT sensor exceeds the allowable temperature
range .
15 Freeze Flt Freeze Fault Detect Manual Yes
The freezestat indicates that the leaving water
temperature is below the allowable setpoint for
adequate freeze protection . Applies to both water
and glycol loop applications .
16 Cmp1 Lo Sctn
Compressor 1 Low Suction
Temperature
Auto / Intel
1
See Description
Yes
If the unit is in cooling or dehumidification mode,
alarm indicates that the compressor low suction
temperature is below the fixed alarm setpoint of
28°F (-2 .22°C) . If the unit is in heating mode, the
compressor low suction temperature alarm is
determined by the loop fluid setpoint. This setpoint
is based on the configuration switch 3 setting:
Switch 3 is Off: Water loop setpoint (AV:12) is used.
Switch 3 is On: Glycol loop setpoint (AV:11) is used .
Alarm clears automatically when in cooling/
dehumidification modes. Alarm is cleared using
Intelligent Reset 1 when in heating mode .
17 Cmp2 Lo Sctn
Compressor 2 Low Suction
Temperature
18 A2L Snsr Flt
A2L Mitigation Board Refrigerant
Sensor Fault
Auto No
The A2L mitigation board has detected a fault with
one or more of the refrigerant sensors . The unit
controller continues to operate normally with the
fan at constant high speed .
19 Cntrl Temp Snsr Flt Control Temperature Sensor Fault Manual Yes
The space / return air temperature sensor(s) input
value exceeds the allowabe temperature range .
Alarm applies to units that are configured for room
sensor control or with hot gas reheat (HGR) .