Technicians should use a multimeter to check for continuity across the terminals

The Heil Quaker ICP 1071058 Pressure Switch is an essential safety component engineered for precise vent pressure monitoring in medium to high-efficiency residential and light commercial HVAC units

this Single Pole Single Throw (SPST) air pressure switch ensures that the inducer motor is generating sufficient draft before allowing the ignition sequence to proceed

effectively preventing operation under hazardous venting conditions such as blocked flues or intake obstructions

it fits standard color-coded protective boots

Carrier 48TJ500135 Support 318820-201 Technicians should use a multimeterWhen you are performing a heat exchanger swap or a burner section overhaul on a Carrier rooftop unit, the Carrier 48TJ500135 Burner Support is a critical structural component for ensuring proper manifold alignment. This OEM Carrier replacement part is engineered to the exact specifications of the 48TJ and 50TJ series, providing a rigid burner assembly mounting base that prevents sagging and common delayed ignition issues caused by misaligned crossover