Original message
| om124
 |  "thermostat wiring for honeywellT87F"
, posted Thu 24 Jun 04:01  
I am installing a residential central air unit ,with the house ahving an existing furnace. I am replacing a Honeywell heating thermostat (no model #) because this house only had heating. I am replacing it with a T87F universal thermostat. the only wiring is red & white for heating . Need to know the wiring now that i am putting in central air
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