Port B is typically the normally closed port when the motor is de-energized

Standard installation utilizes the screws provided with the thermostat's wall plate or sub-base

including the 66026 igniter-injector

This is a single-speed 1/20 HP fan motor designed for simple on/off control logic common in fixed-speed condensing systems

This genuine OEM replacement part is engineered for high-voltage ignition sequences in Lochinvar EnergyRite Heaters

Marathon K065 Motor 320788-704 Port B is typically theThe Marathon K065 Motor is a heavy duty 2HP 1800RPM motor engineered for demanding industrial and commercial HVACR applications. Built on a robust 145T frame, this three phase induction motor utilizes a TEFC (Totally Enclosed Fan Cooled) enclosure to prevent contaminants from compromising internal windings, making it ideal for high debris environments. Operating at 208 230 460V, this NEMA premium efficiency motor provides consistent torque and thermal