Marvair 50023 Heat Coil 324846-701 providing the high-static pressure capabilities

providing the high-static pressure capabilities required for consistent airflow across various duct configurations

The included gasket ensures a gas-tight seal at the collector box

or as a direct replacement in UDAP and UDAS systems where a #44 drill size is specified for peak BTU output

Common causes include restricted return airflow

It operates via 20-30Vac hardwire or battery power for millivolt systems

Marvair 50023 Heat Coil 324846-701 providing the high-static pressure capabilitiesThe Marvair 50023 Heat Coil is a 24V resistive heating component engineered for climate control in demanding environments such as telecom shelters, modular buildings, and educational facilities. Directly interchangeable with the HCR 12AQ1AA, this coil serves as a critical 24V auxiliary heat source, converting electrical energy into precise thermal output to maintain stable operating temperatures during low ambient conditions. Its DPDT switching relay