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I have a Carrier furnace connected to an Infinity thermostat

Customer Question
and we're installing a Goodman...
I have a Carrier furnace connected to an Infinity thermostat and we're installing a Goodman A/C unit. How to we connect he A/C unit to the thermostst?
Submitted: 2 years ago.Category: HVAC
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Answered in 18 minutes by:
5/16/2015
HVAC Technician: gotoman for ac, HVAC Technician replied 2 years ago
gotoman for ac
gotoman for ac, HVAC Technician
Category: HVAC
Satisfied Customers: 5,238
Experience: 51 years of experience install design and repair of all makes and models of AC
Verified
Russ here. Welcome. I am here to help. Please do not rate until you are satisfied with answer. Always available for follow up questions. On furnace you should have another set of terminals that are YRWCG Just connect outside wire to them. If it is cooling only just connect outside unit to Y and C .. Russ
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Customer reply replied 2 years ago
But the thermostat doesn't recognize the ac unit
HVAC Technician: gotoman for ac, HVAC Technician replied 2 years ago
There is an interface board you will need to purchase that will work with system. The thermostat will recognize board and the board will control unit. Or you can buy another thermostat and get rid of the Infinity stat. Russ
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Phil
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