Issue:
Honeywell W7900 Troubleshooting
Resolution:
Troubleshooting the Honeywell W7900 Reciprocating Water Chiller Controls
Reference Material:
- Appropriate Wiring Diagram & IOM for specific chiller.
- CGWC-SB-2AGeneral Service Bulletin; 1U12 W7900 Check Out Procedures see CGWC-SB-2A attached below
- Drawing 1U13 Relay Drive Board see AM-CON18 attached below
Notes:
- Additional Reference: Applications Engineering Manual AM-CON18
Other Question/Problem/Cause Statements:
- Honeywell W7900 Troubleshooting?
- W7900?
- How to troubleshoot the W7900?
- How to troubleshoot the Honeywell W7900?
- 1U12 W7900?
- 1U13 Relay Module?
- 1U13 Relay Drive Board?
- 1U13?
- 1U12?
- W7900 Control Troubleshooting?
- W7900 Application Engineering Manual; Reciprocating Water Chiller Control?
Facts:
- Water-Cooled Chiller (PBL) (CGWA, CGWB, CGWC)
- Air-Cooled Chiller - Intellipak (CGAB)
- Air-Cooled Chiller - Intellipak (CGAC)
Original HUB Document : DOC-83613
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.