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Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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I HAVE AN IF80-261 THERMOSTAT INSTALLED IN MY SYSTEM THAT HAS

Customer Question

I HAVE AN IF80-261 THERMOSTAT INSTALLED IN MY SYSTEM THAT HAS GONE BAD. I'M REPLACING IT WITH A IF83-277. THE WIRING IS DIFFERENT. COULD YOU GIVE ME THE CORRECT WIRING. I HAVE A 5-TON A/C, WITH GAS HEAT, SINGLE 24-VOLT TRANSFORMER.THE IF80-261 is wired W, RH&RC JUMPED, brown(could be orange), green, yellow.THE WIRING DIAGRAMS FOR THE IF83-277 DO NOT MATCH.I WOULD APPRECIATE YOUR HELP.THANK YOU VERY MUCH,LARRY ******************
Submitted: 1 year ago.
Category: HVAC
Expert:  Phil replied 1 year ago.
Welcome! Your question will be answered in detail. UP to 48 hours step by step coaching on diagnosis & repairs $38 additional.
http://www.emersonclimate.com/en-US/resources/faq/white_rodgers/Documents/0037-6288.pdf
That should be the manual, I need the model number and age of the Ruud units inside the house and outside.
And I need to know which wiring diagram was followed on page 3 of the manual above.
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http://www.emersonclimate.com/Documents/White-Rodgers/instruction_sheets/0037-6509.pdf
Tell me which diagram you followed on pages 2 and 3
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