Weil McLain 382-200-317 Pressure Switch

The Weil McLain 382-200-317 Pressure Switch is a critical high altitude kit designed specifically for GV series boilers operating at elevations between 5,500 and 10,000 feet. This 1.25" W.C. pressure switch features a single-pole single-throw (SPST) configuration, calibrated to ensure precise drafting safety and ignition sequencing in thin atmospheric conditions. As a factory-authorized Weil McLain replacement part, it addresses the common issue of erratic burner cycles and nuisance lockouts that occur when standard altitude switches fail to compensate for reduced air density. The robust housing and 1/4" barb connections allow for direct integration into existing pneumatic lines, maintaining the HVAC system reliability required for specialized mountain climate applications. Professional technicians should verify the exact water column rating against the boiler’s data plate to ensure atmospheric pressure compensation meets the manufacturer's strict safety specifications for gas boiler high altitude operation.

• High-Altitude Calibration: Specifically engineered for 5,500 to 10,000 ft. elevations to prevent draft-related ignition failures.
• Precise 1.25" W.C. Setpoint: Maintains a strict water column pressure threshold for accurate combustion safety monitoring.
• OEM Compatibility: Seamlessly replaces legacy or standard-altitude switches in Weil McLain GV boilers without modification.
• Industrial-Grade Build: Features a durable diaphragm and SPST contact points designed to withstand the high-cycle demands of residential and light commercial heating.

Is the 382-200-317 compatible with standard elevation boilers?
No, this switch is specifically calibrated for high altitudes. Using a 1.25" W.C. switch at low elevations can prevent the boiler from firing because the pressure differentials generated at sea level will not match this high-altitude setpoint.

What are the symptoms of a failing high-altitude air pressure switch?
Common signs include the inducer motor running continuously without the burner igniting, or the system throwing a "pressure switch stuck open" error code during the pre-purge cycle.

Can I use this for other boiler series?
While this is a standard SPST pressure switch, it is purpose-built for the Weil McLain GV series. Always cross-reference the part number and water column requirements for your specific model before installation.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.