Issue:
BAS Failed to Establish Communication
Resolution:
THE BAS was setup as "installed" (either Tracer Comm 3 or Lon Talk) and the BAS did not communicate with the MP within 15 minutes after power up.
This is an informational warning diagnostic. If the module is configured,installed and the chiller is running in local mode this diagnostic will be generated. The only way to eliminate this diagnostic is to change the configuration of the chiller such that the main processor (MP) will not look for the module. To do this:
- Connect a laptop computer with Techview to the the MP and access Configuration View
- Select the Feature Tab and scroll down to REM
- Change this setting to N for "No remote interface"
- Select Load Configuration at the bottom of the screen
When the BAS Module is to be used, the configuration will need to be changed back and re-loaded.
RTAC ONLY Note:
When changing the configuration, a new confirmation code will automatically be generated.
When changing configuration through the Feature Tab, it is highly recommended that the confirmation code (under the Nameplate Tab in Configuration View) be noted in the unlikely event a problem with the Dynaview display were to happen, the existing configuration and confirmation code will be easier to enter into a replacement display if needed.
Notes:
Changes:
Other Question/Problem/Cause Statements:
- DIAGNOSTIC: BAS Failed to Establish Communication
Facts:
- BAS set to Auto Local in Unit View
- BAS communication module (1U8) is installed
- Air-Cooled Chiller (Pueblo) (RTAC)
- Water-Cooled Chiller (Pueblo) (RTHD)
Document Identifier: DOC-86378
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.