United Electric H400K-456 Pressure Switch 320734-701 an oversized furnace for the

an oversized furnace for the ductwork

Efficiency Restoration: Maintains proper blower-to-heat-exchanger spacing for optimal air throw and heat transfer

this thermistor assembly mounts directly onto copper refrigerant lines or headers to provide real-time feedback to the control board

Direct OEM Compatibility: Verified for use in specific Carrier

United Electric H400K-456 Pressure Switch 320734-701 an oversized furnace for theThe United Electric H400K 456 Pressure Switch is a high performance differential pressure switch designed for critical monitoring in industrial gas production, energy generation, and water treatment systems. This rugged, field adjustable control features a setpoint range of 2 to 20 PSID (+ 2 to 20" WC depending on calibration), providing precise threshold protection. Engineered with a durable Buna N diaphragm and an aluminum pressure connection, it