Issue:
Can the chiller start the pumps?
Resolution:
Yes....RTAA 70-125 ton chillers can control the pump(s).
- Wire pump output TB4-8,9 (1U1) to pump starter
- Enable chiller either locally or via External Auto/Stop TB3-3,4 (1U1).
- Pump will come on when the chiller is enabled.
Notes:
The RTAA 130-400 ton chillers do not have an output to control the chilled water pump.
Changes:
Other Question/Problem/Cause Statements:
- Can the chiller start the pumps?
Facts:
- RTAA 70-125 TON (PUEBLO)
- Generic BAS
- Customer will provide chiller enable.
- Air-Cooled Chiller (Pueblo) (RTAA 70-125 Ton)
- Compressor Chiller (Pueblo) (RTUA)
- Water-Cooled Chiller (Pueblo) (RTWA)
Document Identifier: DOC-82639
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.