Antunes Controls 803112602 Pressure Switch

The Antunes Controls 803112602, specifically the HGP-A High Gas Pressure Switch, is a critical safety component for industrial and commercial combustion systems. Designed to monitor gas pressure with a range of 5-28" WC, this switch provides an essential electrical cutout when pressures exceed your specific setpoint. As a manual reset pressure switch, it prevents systems from automatically cycling after a high-pressure fault, requiring a technician to inspect the burner and fuel train before resuming operation. The unit features a rugged die-cast aluminum housing and is equipped with a standard 1/4" NPT connection for the gas inlet and a 1/8" NPT vent for safety. Rated for 10 PSI maximum surge pressure, it maintains reliable performance across ambient temperatures from -40°F to 140°F. For contractors installing high gas pressure switches in boiler rooms or process heating applications, the SPDT switch configuration ensures flexible wiring for both alarm and limit circuits, providing robust protection for gas-fired equipment.

• Manual Reset Safety: Prevents automatic restarts, ensuring a technician verifies system integrity after a high-pressure trip.
• Precise Adjustment: Features a clear scale for accurate field settings within the 5" to 28" water column range.
• Durable Construction: The die-cast aluminum housing is built for the rigors of mechanical rooms and industrial environments.
• Flexible Installation: Compact design with standard 1/4" NPT bottom inlet allows for straightforward integration into existing gas trains.
• Versatile Compatibility: Mounts horizontally and operates effectively in extreme temperature ranges (-40°F to 140°F).

How do I reset the Antunes HGP-A after a trip?
Wait for the gas pressure to drop below the setpoint, then firmly press the manual reset button located on the top of the housing. If it does not latch, verify that the current pressure is indeed below your setpoint using a calibrated manometer.

Can this switch be used for low gas pressure sensing?
No, the 803112602 HGP-A is specifically designed as a high gas pressure limit. For low-pressure monitoring, you would require the LGP-A series which breaks the circuit on a pressure drop.

Does this pressure switch require a specific mounting orientation?
Yes, for accurate calibration, these units must be mounted horizontally with the inlet stem pointing down. While they do not require precise leveling, significant tilting can affect the setpoint accuracy.

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.