Issue:
Chilled Water Flow (Entering Water Temp) with CH530 Controls
Resolution:
Diagnostic: Chilled Water Flow (Entering Water Temp)
Active Period: While any circuit is
Description of Trigger Behavior: The entering evaporator water temperature fell below the leaving evaporator water temperature by an excessive amount for the test time. For falling film evaporators (RTAC) this diagnostic cannot reliably indicate loss of flow, but can warn of improper flow direction through the evaporator, misbound temperature sensors, or other system problems energized.
- This diagnostic can be caused by misbound temperature sensors, but may also indicate other system problems
- Validate accuracy of entering and leaving water temperature sensors
- Validate direction of water flow
Notes:
Changes:
Other Question/Problem/Cause Statements:
- Chilled Water Flow (Entering Water Temp); CH530
Facts:
- CH530 Controls
Document Identifier: DOC-76978
Document Identifier: 76978
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.