Tjernlund Products DC4 Draft Control 326010-701 including walk-in freezers and coolers

including walk-in freezers and coolers

reducing short-cycling and optimizing compressor longevity in heavy-duty applications

it requires a weather shield for direct outdoor exposure

and solar applications where lead-free compliance is mandatory

Verify 24V power at the switch terminals and check the induction tubing for clogs or cracks

Tjernlund Products DC4 Draft Control 326010-701 including walk-in freezers and coolersThe Tjernlund DC4 Draft Control is an essential component for technicians managing combustion efficiency in residential and commercial heating systems. This 4 inch single acting draft control is precision engineered to maintain a consistent neutral draft within chimneys and vents, effectively counteracting fluctuations caused by changing barometric pressure, stack temperatures, and wind velocity. Fabricated from heavy duty corrosion resistant steel,