While designed specifically for Aprilaire equipment

replacing a carbon-tracked or brittle cable with this genuine Lochinvar replacement part restores the precise millivolt signal required for flue gas combustion

If you notice the compressor humming but not starting

this is a low-temperature compressor specifically designed for refrigeration applications

Midco International 840937 Switching Relay 323080-701 While designed specifically for AprilaireThe Midco International 840937 Switching Relay is a heavy duty 24V 3A switching relay designed for industrial automation, HVAC control panels, and burner management systems. Engineered for high cycle reliability, this SPDT switching relay facilitates the management of high power circuits using low voltage 24V DC signals, ensuring stable logic transitions in complex electrical environments. With a 3 amp current rating, it provides the necessary