Data Sheet for Product

Page 6 of 8 Siemens Building Technologies, Inc.
Document No. 127-0550
Table 6. Alarms (Point 30).
Point Type Description
0 — No Alarm
1 Warning Miscellaneous Temperature Sensor 1 Shorted or Open
2 Warning Miscellaneous Sensor 2 Shorted or Open
3 Warning Final Filter Dirty. Pressure drop above limit.
4 Warning Standard Filter Dirty. Pressure drop above limit.
5 Warning Airflow Warning. Unit is off and digital input indicates airflow.
6 Warning Outside Air Damper Stuck. Damper is open when the unit is off,
or damper is not completely open when it should be.
7 Problem Cooling Circuit 1 Failure. Compressor Cooling Units Only.
Results from Compressor Shutdown by Safety Device.
8 Problem Cooling Circuit 2 Failure. Compressor Cooling Units Only.
Results from Compressor Shutdown by Safety Device.
9 Problem Cooling Circuit 3 Failure. Compressor Cooling Units Only.
Results from Compressor Shutdown by Safety Device.
10 Problem Heat Fail. Only for units with gas heat.
11 Problem Low Airflow. Temperature rise across heater is too high. Heat
Disabled. VAV Units Only.
12 Problem Mixed Air Temperature Sensor Shorted or Open.
13 Problem Supply Air Temperature Sensor Shorted or Open.
14 Problem Return Air Temperature Sensor Shorted or Open.
15 Problem Space Temperature Sensor Shorted or Open.
16 Problem Outdoor Air Temperature Sensor Shorted or Open.
17 Problem Freeze Problem. Digital Freeze Input closes after unit is turned
off.
18 Fault Supply Vanes Open when Unit attempts to start. VAV Units
Only.
19 Fault Fan Fail. Airflow Switches Open after unit is on.
20 Fault Supply Temperature Below Low Limit after Unit is On.
21 Fault Supply Temperature Above High Limit after Unit is On.
22 Fault Return Temperature Above High Limit after Unit is On.
23 Fault Duct High Limit Switch Open. VAV Units Only.
24 Fault Supply Air Temperature Sensor Shorted or Open.
25 Fault Return Air Temperature Sensor Shorted or Open and is
selected as the Control Temperature.
26 Fault Space Temperature Sensor Shorted or Open and is selected
as the Control Temperature.
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