Issue:
Low evaporator temperature trips
Resolution:
The following should be checked:
1. Pressure transducers for accuracy
2. Oil and refrigerant charge
3. Low evaporator temperature cutout setting balanced with the glycol concentration
4. Changes in water flow rates or system load greater than 10%/minute
5. Reducing glycol concentration if possible
6. Raising evaporator flow rates if possible
7. Increase the volume of water in the loop to at least a 2 minute loop
Notes:
Changes:
Other Question/Problem/Cause Statements:
- Low evaporator temperature trips on both circuits.
Facts:
- Short water loop
- Variable primary piping system
- At or near minimum evaporator flow rate
- 30% Ethylene Glycol
- Air-Cooled Chiller (Pueblo) (RTAC)
Document Identifier: DOC-77220
Document Identifier: 77220
WARNING:
Information in this article is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience and who comply with all federal, state, and local laws, rules, orders, or regulations related to the installation, service, or repair of a heating or central air conditioning product. Any attempt to install, service, or repair a heating or central air conditioning product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of the information contained herein, nor can it assume any liability in connection with its use.