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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
and protected by high-temperature fiberglass insulation rated for demanding furnace environments
Constant Cut-in Performance: Maintains a steady 37°F cut-in to ensure consistent evaporator defrosting
allowing for flexible rod alignment
The McDonnell & Miller 306700 is specifically designed for the FS7-4
Reznor 211130 Pressure Switch 30067439-890 and protected by high-temperature fiberglassThe Reznor 211130 Pressure Switch is a critical safety and operational component designed for Reznor HVAC equipment, specifically unit heaters and gas fired duct furnaces. This OEM replacement part is factory calibrated to a 1. 70" wc setpoint, ensuring the inducer motor or venter assembly provides sufficient airflow before allowing the ignition sequence to proceed. As a single pole double throw (SPDT) switch, it offers versatile electrical