Versatile 4-Speed Tap: Allows for precise airflow calibration across different static pressure environments

this Class 2 transformer provides consistent secondary voltage even under load

Durable Material Construction: Synthetic EPDM diaphragm resists thermal degradation in steam and hot water applications

ensuring stable flame ignition and preventing high-limit trips or carboning issues caused by overfiring

Manual Fan Switch: Provides the operator with direct control over the blower for ventilation without engaging the burner

Nordyne 632636 Pressure Switch 320788-703 Versatile 4-Speed Tap: Allows forThe Nordyne 632636 Pressure Switch is a critical safety component designed for specific HVAC furnace systems, ensuring the inducer motor generates sufficient vacuum before allowing the ignition sequence. This differential air pressure switch features a precise set point of 0. 45" WC, making it a direct replacement for failing or stuck open switches in Miller, Intertherm, and Nordyne units. When diagnosing furnace pressure switch failure, verify that