Data Sheet for Product

Siemens Building Technologies, Inc. Page 7 of 8
Document No. 127-0544
Table 6. Alarms (Point 30).
Point Type Description
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.
27 Fault Outside Air Temperature sensor shorted or open and is
selected as the Control Temperature. VAV with Modulating
Heat only.
28 Fault Smoke Detector input open
29 Fault Freeze Shutdown. Digital Freeze input closes while unit is
operating.
Table 7. Control Mode (Point 46).
Value Description
0 Off – No Unoccupied Operation
1 Auto
2 On – Cool and Heat Enabled
3 On – Cool Enabled, Heat Disabled
4 On – Cool Disabled, Heat Enabled
5 On – Cool and Heat Disabled