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About Craig HVAC Expert
Expertise
I have been in the HVAC field for the past 12+ years. I can help with most HVAC questions. I work on commerical buildings for the most part, and have yet to find anything I could not troubleshoot and repair, when repairable. I work on small 1 ton units to a 2500 ton chiller. Troubleshoot air flow, elect, and control problems. I attend regular classes to keep up with the latest and greatest.
Experience
I have work in the HVAC trade for the past sixteen years. I work on commerical sites, hospitals, gov't buildings. I can troubleshoot just about anything in the HVAC business.
Education/Credentials
5 years union trade school, VFD training classes, Liebert factory training, some York and Trane factory training.
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You are here: Experts > Home/Garden > Home Appliances > Heating, Air Conditioning, Fridge, HVAC > THERMOSTAT WIRE COLOR OREINTAION
Expert: Craig HVAC Expert - 11/8/2009
Question
WHAT DOES RED, YELLOW,ECT. STAT WIRE GO TO. LIKE YELLOW IS COMPRESSOR/ FOR HEAT PUMP AND STRAIGHT AIR AND HEAT. AND HOW DO YOU USE THE OUTSIDE TEMP. AND A TEMP CHART TO CHARGE A R-22 UNIT.
THANKS,JEFF
Answer
The typical wiring is
Red to R (hot)
Green to G (fan)
Yellow to Y (cool)
white to w or E (heat)
blue to B or O (heatpump)
There are different means to charge a unit from a chart. It normally involves the outdoor temp, but no always depending on the unit.
Craig
achelpguy@gmail.com
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