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Phil, Mechanical Engineer
Category: HVAC
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Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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Carrier Model 30RAN055---511Cx Chiller. The up and down

Customer Question

Carrier Model 30RAN055---511Cx Chiller. The up and down switches are flakey and very annoying on the control panel. Where can I get a schematic diagram of the control unit to make a simple aux button set to connect to the RJ45 input?
Submitted: 3 months ago.
Category: HVAC
Expert:  airheatman replied 3 months ago.

I have never worked on them but have lots of Carrier manual links. take a look at this manual and see if it is any help.

http://www.kigsales.com/specsheets/Aquasnap_ComfortLink_Controls_30RA_2T.pdf

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