Description
This is a Brand New Armstrong/Lennox 24 volt Transformer. It has a primary voltage of 110-120 volts and It's rated at 40VA. The Part # is R100972-01 (also # 19W88 & 19W8801). It is used in MANY Armstrong/Lennox Gas Furnaces! Thanks for looking and good luck!
Function:
Transformers are devices used in electrical circuits to change the voltage of electricity flowing in the circuit. Transformers can be used either to increase the voltage (called "step up") or decrease the voltage ("step down"). Transformers found in furnaces are "step down" transformers and usually convert 120-240 volt to 24 volt.
Replaces Old Part #s:
19W88 19W8801
Repair Difficulty Level:
Partial List of Units that Use This Item:
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