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BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22541
Experience:  Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
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I have a 4 ton trane air handle split unit with heat pump on

Customer Question

I have a 4 ton trane air handle split unit with heat pump on the air handle low voltage terminal strip terminals are W1,W2,W3,B,O,G YLO,Y,T,R HOW DO I WIRE THIS TO NEW THERMOSTAT
Submitted: 2 years ago.
Category: HVAC
Expert:  BillyHvac replied 2 years ago.
How many wires do you have and what color are they?
Customer: replied 2 years ago.
We brought the building the unit came with it uninstall so we are going from scratch from thermostat to air handler
I have six wires come in from condenser to air handler
Expert:  BillyHvac replied 2 years ago.
Ok the standard system is :
Red to R
White to W1
Yellow to Y
Green to G
Orange to O
Blue is B in the blower unit But C in the thermostat (if c is present)
Are those your colors?
Customer: replied 2 years ago.
Expert:  BillyHvac replied 2 years ago.
does that answer your question for today?
Customer: replied 2 years ago.
on air handle from condenser x2 is wired to w2 do I hook that up to w2 on thermostat
Customer: replied 2 years ago.
my thermostat have em1 and w2
Customer: replied 2 years ago.
ew1 sorry
Expert:  BillyHvac replied 2 years ago.
That is correct...e1
Customer: replied 2 years ago.
so w2 on thermostat stays empty
Expert:  BillyHvac replied 2 years ago.
And you must program new thermostat for heat pump with backup heat
Customer: replied 2 years ago.
hi Billy are you still there
Customer: replied 2 years ago.
(Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Video Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Expert:  BillyHvac replied 2 years ago.
do you need more info