Antunes Controls 804112106 Pressure Switch

The Antunes Controls 804112106 (Model RHLGP-A) is a high-performance dual gas pressure switch designed for critical monitoring in industrial and commercial combustion systems. Engineered for precision, this double gas pressure switch features an adjustable High range of 10-50" WC and a Low range of 2-14" WC, ensuring comprehensive protection against overpressure and underpressure conditions. This automatic reset pressure switch utilizes two independent SPDT (Single-Pole Double-Throw) contacts to cut the electrical control circuit if set points are exceeded, preventing unsafe burner operation.

Housed in a rugged die-cast aluminum enclosure, the Antunes 804112106 is built to withstand demanding mechanical room environments. The unit features distinct NPT connection ports: a 3/8" NPT high pressure connection at the bottom, a 1/8" NPT low pressure connection on the side, and a 1/8" NPT vent. It is rated for maximum surge pressures up to 10 PSI and operates effectively in ambient temperatures ranging from -40°F to 140°F. For contractors overseeing commercial HVACR and boiler interlock systems, this dual-monitoring solution simplifies wiring and reduces the physical footprint compared to installing two separate switches.

• Dual-Point Monitoring: Combines high and low pressure supervision in a single, space-saving RHLGP-A housing.
• Automatic Reset: Features a recycle-type mechanism that automatically restores the circuit once gas pressure returns to the safe operating window.
• Durable Construction: The aluminum alloy housing provides excellent protection for internal components in high-duty cycle applications.
• Versatile Wiring: Equipped with dual SPDT switches (10A @ 125 VAC) for flexible integration with flame safeguard controls and alarm circuits.
• Flexible Mounting: Designed to be mounted horizontally (inlet stem down) without requiring perfectly level installation for accurate sensing.

What is the difference between the RHLGP-A and HLGP-A models?
The RHLGP-A is a "Recycle" or automatic reset model, meaning it resets itself once the pressure returns to the acceptable range. The HLGP-A typically denotes a manual reset requirement, where a technician must physically reset the switch after a trip.

Can this pressure switch be used with propane?
Yes, the 804112106 is compatible with natural gas, propane (LPG), and air, making it a versatile choice for various industrial gas pressure applications.

Are special tools required for setpoint adjustment?
No, the setpoints are easily adjustable via the range scales located on the front of the unit, allowing for field calibration without specialized diagnostic equipment.

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.