Issue:
Compressor won't load
Resolution:
- Compressor motor current stays around 45% RLA because while the female unload solenoid is being energized
- Its valve is defective or the load path is blocked and pressure at the test port doesn't rise
- Disassemble the female unloader assembly and replace a malfunctioning valve or look for debris under the valve.
- Check the male loader solenoid valve to make sure that it is working correctly also.
- Check to ensure the correct current transformers are installed.
- Since the rest of the oil system did not show excessive pressure drop, the problem is probably with the oil filter being clogged or a faulty master oil check valve.
- Recommend to check both.
Notes:
Refer to service bulletin RLC-SVD03A-EN or RTAC-SVD01A-EN for a full checkout procedure.
Changes:
Other Question/Problem/Cause Statements:
- Compressor #1 won't load.
- Compressor will not load up.
- Problems with the female unload solenoid?
- Compressor will not load
- Compressor is noisy
- Compressor is loud
Facts:
- Air-Cooled Chiller (Pueblo) (RTAA 70-125 Ton)
- Air-Cooled Chiller (Pueblo) (RTAC)
- Water-Cooled Chiller (Pueblo) (RTWA)
- Compressor Chiller (Pueblo) (RTUA)
- 70 psi pressure drop across oil filter and master oil check valve
Document Identifier: DOC-84586
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.