Data Sheet for Product

Information in this document is based on specifications believed correct at the time of publication. The right is reserved to make changes as design
improvements are introduced. Other product or company names mentioned herein may be the trademarks of their respective owners.
© 2002 Siemens Building Technologies, Inc.
Siemens Building Technologies, Inc. Printed in the U.S.A.
1000 Deerfield Parkway Document No. 127-0009
Buffalo Grove, IL 60089-4513 Page 6 of 6
U.S.A.
Table 4. Alarms (Points 46 through 49).
Value Description
26 Mechanical High Pressure
29 Bad Compressor Suction Temperature Sensor
30 Bad Evaporator Pressure Sensor
31 Bad Condenser Pressure Sensor
32 Bad Phase Voltage
33 Chilled Water Freeze Protect
34 Bad Voltage Ratio
35 Bad Leaving Evaporator Temperature Sensor
Table 5. Reset Option (Point 80).
Value Description
0 No Chilled Water Reset
1 Return Chilled Water Reset. Constant return Chilled Water
Temperature Set Point maintained.
2 4 – 20 mA Chilled Water Reset. Resets Chilled Water Set
Point based on 4 – 20 mA signal. A signal less than 4 mA
results in no reset of Chilled Water Temperature Set Point. A
signal greater than 4 mA results in a linear reset between
Chilled Water Set Point and the Maximum Chilled Water Reset
Set Point plus the Chilled Water Set Point.
3 Network Chilled Water Reset. Resets Chilled Water Set Point
based on the network evaporator leaving temperature reset. A
signal of 0 to 100% results in a linear reset between the
Chilled Water Set Point and the Maximum Chilled Water Reset
Set Point plus the Chilled Water Set Point.
4 Ice Chilled Water Reset. Resets the Chilled Water Set Point
(typically 23°F) based upon a 4 – 20 mA signal. A signal less
than 4 mA results in no reset of Chilled Water Temperature
Set Point. A signal greater than 4mA results in a Chilled Water
Set Point equal to the set point plus the maximum Chilled
Water Reset Set Point (typically 22°F).
5 Outdoor Air Temperature Chilled Water Reset.