Issue:
How does the freeze avoidance setting work?
Resolution:
- For Freeze Avoidance to be present to Enable or Disable, the chiller needs to be configured (Evaporator Pump Control) for either single or dual pump (with or w/o inverter).
- Evaporator Pump Control can be found in Configuration View (CH530 Tab) within Techview.
- When Freeze Avoidance is enabled, the chilled water pump output will be forced on when the ambient temperature drops below the leaving water temperature cutout.
- It will stay energized until the minimum evaporator temperature rises 13F above the Leaving Water Cutout.
- The pump will cycle off for a calculated period of time. After this time expires, the pump output may come back on again if the ambient temperature is again below the Leaving Water Cutout.
Notes:
This setting can be found under Feature Settings on the Dynaview or in the Freeze Avoidance Tab within Techview.
Other Question/Problem/Cause Statements:
- How does the freeze avoidance setting work?
- What is the Freeze Avoidance setting?
Facts:
- Air-Cooled Chiller (Pueblo) (CGAM 20-130 Ton)
Document Identifier: DOC-99681
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.