Issue:
Evap Solution Flow Proving Switch
Resolution:
CGAF
PCM ON:
If an open flow switch condition lasting for more than 6 continuous seconds is detected after the pump is ON, the following will occur:
- Compressors if ON will be commanded OFF
- Compressors will be inhibited from starting
- Compressor status will indicate: 'Locked' and 'Disabled by Evap Flow Protection'
- After 5 additional minutes of being open an 'Evap Solution Flow Proving Switch' auto reset diagnostic will be set.
If at any time the flow proving switch is closed, after having been detected open, compressors will be released for operation and the auto reset diagnostic will be cleared. The manual lockout diagnostic will only be cleared via a manual reset request from the HI or cycling the power to the UCM.
Notes:
Changes:
Other Question/Problem/Cause Statements:
- Evap Solution Flow Proving Switch?
- Disabled by Evap Flow Protection?
- Chiller will not run?
- Compressor will not run?
- Chiller/Compressor will not run? Status: Disabled by Evap Flow Protection?
- Flow Proving Switch?
Facts:
- INTELLIPAK CHILLER 20-60
- Air-Cooled Chiller - Intellipak (CGAC, CGAF)
- Evaporator Solution Flow Interlock: ON
Document Identifier: DOC-85288
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.