Antunes Controls 804114201 Pressure Switch

The Antunes Controls 804114201 (Model HLGP-D) is a specialized high/low gas pressure switch designed for precision monitoring in commercial and industrial HVACR systems. Engineered with a dual-circuit DPDT (Double Pole Double Throw) configuration, this manual reset pressure switch provides critical safety interlocking for burner circuits. The high gas pressure threshold is adjustable from 5-28" WC, while the low gas pressure side monitors ranges between 2-14" WC, ensuring your equipment operates within safe pneumatic parameters. Encased in a rugged die-cast aluminum housing, the unit features 1/8" NPT technical connections and an integrated 1/8" NPT vent, making it a reliable HVAC replacement part for high-demand environments. This Antunes pneumatic control is UL, FM, and CSA approved, rated for temperatures from -40°F to 140°F, providing a dual-point safety solution that prevents accidental restarts and protects high-value boiler systems from pressure fluctuations.

• Dual-Point Monitoring: Combines high and low pressure sensing into a single, space-saving unit for efficient system interlocks.
• Enhanced Safety: The manual reset mechanism ensures that a technician must inspect the system before operation resumes after a trip.
• Independent Circuit Control: Dual DPDT switch contacts allow for controlling two separate electrical loads or voltages simultaneously.
• Industrial Durability: Built with a die-cast aluminum housing to withstand harsh mechanical rooms and extreme temperatures.
• Precise Adjustment: Features easy-to-read scale indicators for accurate field setting of water column thresholds.

How do I reset the Antunes 804114201 after a pressure trip?
Once gas pressures have returned to the safe operating range (below the high setting or above the low setting), firmly press the manual reset button located on the housing to re-engage the electrical circuits.

What is the maximum surge pressure for the HLGP-D model?
This switch is designed to handle a maximum surge pressure of 10 PSI, protecting the internal diaphragm from momentary spikes in the gas line.

Can this switch be used for both high and low gas pressure limits?
Yes, the 804114201 is a combination HLGP-D unit that provides single-point monitoring for both high-limit and low-limit gas conditions using two independent internal switches.

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.