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or Nordyne gas furnaces
or a frozen evaporator coil despite a clean filter and proper airflow
the 157RD-1 is the replacement casting (housing) only
SPDT Output Contacts: Versatile 1-Form-C dry contacts support simultaneous high/low alarms or complex pump logic
J-Box compatible for code-compliant mounting
Tjernlund Products 950-8470 Fan Prover Kit Refrigerant or Nordyne gas furnacesEnsure reliable combustion safety and draft performance with the Tjernlund Products 950 8470 Fan Prover Kit. Specifically engineered for RT750 and RT1500 Rooftop Draft Inducers, this kit is the industry standard for verifying adequate airflow before allowing the burner to fire. As a veteran grade HVAC pressure switch replacement, it monitors the static pressure within the venting system to prevent hazardous conditions such as carbon monoxide spillage
US$ 27.90
US$ 27.90
US$ 105.50
US$ 110.00