Issue:
Under voltage diagnostic
Resolution:
The chiller uses a 20:1 step down transformer to monitor the line voltage. There is a utilization range of 10% from the nominal voltage of the chiller. If the voltage falls below the 10% from nominal threshold, the chiller will trip on under voltage. Use under/over voltage transformer checkout procedure from RTAA-SB-5 or RLC-SVD03A-EN.
Notes:
Resource Available:
-
Tech TV Video(s):
- N/A
-
Reference Literature: (Electronic copies can be pulled from e-library at Trane Residential (tranetechnologies.com))
- IOM:
- Service Guide:
-
Other:
- RTAA-SB-5, RLC-SVD03A-EN
Changes:
Other Question/Problem/Cause Statements:
- Under voltage diagnostic
- Overvoltage diagnostic
- under/over voltage monitor
- under/over voltage transformer checkout
Facts:
- Air-Cooled Chiller (Pueblo) (RTAA 130-400 Ton)
- Air-Cooled Chiller (Pueblo) (RTAA 70-125 Ton)
Document Identifier: DOC-80740
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.