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BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22012
Experience:  Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
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Hello i have a Lennox Elite® Series OF23 oil furnaces and would

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Hello i have a Lennox Elite® Series OF23 oil furnaces and would like to have the fan run all the time as i have hooked up an outdoor boiler to it.
How would i do that?

Does the unit have ac installed also?

Customer: replied 2 years ago.

no it doesn't

Thank you.

There is circuit board in the furnace where the thermostat wires attach.

Do you know the board I refer to?


Customer: replied 2 years ago.


You are currently hooked to R and W for Heat

R = 24v
W= Heat signal.

R to G = fan.

You can put jumper between R and G...or you can install a simple fan switch with the 2 wires coming R and G. can mount a 2 wire thermostat that kicks on blower at a set temp IF you run a constant loop.


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