1K24 and 1K25
ECWS = External Chilled Water Setpoint | EDLS = External Demand Limit Setpoint
- Both the 1K24 and 1K25 modules are required for ECWS and EDLS.
- 1K24 is the input module for both of these features.
1K25 module is to enable what is called "Auxiliary Setpoint Enable" input, which is the alternate chilled water setpoint.
- 1K25 enables the hierarchy for the chiller controller to listen to either, the FP or the External setpoint.
1K24 provides the external setpoint.
Notes
- When ordered as a factory installed option on RTAF, both 1K24 and 1K25 modules are included.
- RTAF control option (digit 33): A, B, C, E, G, H
Additional details
Other Question/Problem/Cause Statements
- What is 1K25 used for?
- EXTERNAL chilled water setpoint (CWS) and external current limit setpoint (CLS)
- 1K25 module = optional auxiliary setpoint enable
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.