Issue:
Does the unit come with water pressure relief valves?
Resolution:
Water Pressure relief valves are not supplied by the factory. Sizing of the water pressure relief valves are system dependent.
Sizing Pressure Relief Valves:
For sizing waterside relief valves, see Chapter 12 of the ASHRAE Handbook - 2004 Fundamentals. This gives an overview of chilled water piping and explains the usage of safety relief valves in chilled water piping on pages 12.13 and 12.14.
The following link to a specific vendor's website gives some additional calculations for sizing the outlet area for the valve. www.tycovalves-na.com/ld/CROMC-0296-US.pdf
Notes:
Changes:
Other Question/Problem/Cause Statements:
- Does the unit come with water pressure relief valves?
-
What is the pressure rating for the water relief valves?
Facts:
- Water-Cooled Chiller (Pueblo) (RTHD)
- Air-Cooled Chiller (Pueblo) (CGAM 20-130 Ton)
- Air-Cooled Chiller (Pueblo) (RTAC)
- Compressor Chiller (Pueblo) (RTUD 70-200 Ton)
- Water-Cooled Chiller (Pueblo) (RTWD)
- Air-Cooled Chiller (Pueblo) (RTAE)
Combined the Following HUB Documents: DOC-96741 and DOC-92860
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.