Lennox 10H21 Transformer 575V Primary 230Vsec

The Lennox 10H21 transformers used in Lennox HVAC equipment systems and appliances it is an electrical apparatus that raises a voltage at one level to a lower voltage level. This is necessary because there are parts within HVAC systems that runs at low voltage than the main supply voltage. To accomplish this the transformer utilizes electromagnetic induction principle. In other words, passing current through a coil on one side of a transformer produces and second current in a second coil but the voltage in this second coil is different from the voltage of the first coil depending on the number of turns of the windings .