Markel 56811001 Override Switch 321702-401 this element kit typically includes

this element kit typically includes the necessary replacement gasket to ensure a watertight seal during the screw-in installation process

the ball bearing system and all-angle thrust design allow the motor to be installed in shaft-up

this unit features 1/2" NPT inlet and outlet ports to ensure seamless integration into the fuel line

and 1" sizes

this HVACR valve is suitable for managing flow path configurations in both heating and chilled water systems to regulate terminal unit output

Markel 56811001 Override Switch 321702-401 this element kit typically includesThe Markel 56811001 Override Switch is a critical field installed component engineered specifically for Markel 5100 Series unit heaters. Designed to provide precise manual oversight, this fan override switch allows contractors to bypass standard automated cycles for summer air circulation or to purge the heater casing of residual heat post shutdown. This replacement HVAC switch is built for the rigors of industrial environments, ensuring the fan motor