Issue:
What is the maximum entering water temperature for this chiller?
Resolution:
The easiest way to determine is by running a selection in TOPSS, based on leaving water temperature AND minimum flow rate for the chiller selected. The output will show the maximum entering water temperature.
Water temperatures exceeding these values can cause relief valves to open.
Maximum water temperature unit off
CGAM - 125°F
ACS/ACX - 125°F
ACR/RTAC/E/F - 108°F
RTAA/RTWA/RTUA/CGWD/CCAD - 108°F
- Temperatures above 108 can cause warping of the polypropylene baffles in DX evaporators
Maximum water temperature start up
CGAM - 125°F
ACS/ACX - 125°F
ACR/RTAC/E/F - 108°F
Maximum water temperature sustained
90°F for all air-cooled chillers
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:
- N/A
Changes:
Other Question/Problem/Cause Statements:
- What is the maximum entering water temperature for this chiller?
- What is the max evap temp?
Facts:
- Air-Cooled Chiller (Pueblo) (RTAA 70-125 Ton)
- Air-Cooled Chiller (Pueblo) (CGAM 20-130 Ton)
- Air-Cooled Chiller (Pueblo) (RTAA 130-400 Ton)
- Air-Cooled Chiller (Pueblo) (RTAC)
- Air-Cooled Chiller (Pueblo) (RTAE)
- Air- Cooled Chiller (Pueblo) (ACS/ACX)
Document Identifier: DOC-97912
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.