Prysm Robertshaw 700-506 HVAC Gas Valve — 3/4" Inlet, 300,000 BTU Capacity, 3.5" WC Regulation

The PRYSM ROBERTSHAW 700-506 is a robust HVAC gas valve designed to replace a wide range of OEM part numbers and restore safe, programmable gas flow in furnaces and commercial heating equipment.

This direct-replacement gas valve fits many Lennox, Frymaster, White‑Rodgers and other commercial and residential systems. Engineered for compatibility and durability, it handles natural gas, manufactured gas, mixed gases and LP mixtures with a 3.5" WC pressure regulation setting and up to 300,000 BTU capacity. The valve ships with standard NEMA terminals, accepts a 3/4" inlet, and operates across a broad ambient temperature range for reliable performance in varied installations.

How does this valve match my existing part number or model?

The PRYSM ROBERTSHAW 700-506 is listed as a cross-reference for dozens of OEM numbers, so it often replaces discontinued or hard-to-find valves without modification. Use the model lookup or compare the inlet size, electrical rating and mounting to confirm fit.

• Replaces many numbers including 10P36, 8072428, VS810A1054 and more.
• 3/4" inlet and 2" NPT reducer bushing for common plumbing connections.
• Electrical rating 250mV–750mV and standard NEMA terminals for wiring compatibility.

What performance can I expect for pressure and BTU capacity?

This valve regulates natural gas at a typical setting of 3.5" water column and supports systems up to 300,000 BTU, making it suitable for many residential furnaces and commercial appliances. Maximum inlet pressure rating and ambient tolerance allow it to work in demanding environments.

• Pressure regulation: 3.5" WC for natural gas applications.
• Capacity: up to 300,000 BTU for high-demand units.
• Maximum inlet pressure: 14" WC (0.5 PSI) with ambient range –40°F to 175°F.

Which systems and gas types will this valve work with?

The valve is compatible with a broad array of HVAC and commercial cooking equipment brands, and it supports natural gas, manufactured gas, mixed gas and LP/air mixtures. It is often used in furnaces, boilers, pool heaters and commercial ranges where wall-thermostat actuation is required.

• Commonly fits LENNOX, FRYMASTER, DEAN, AMERICAN RANGE and WHITE‑RODGERS systems.
• Accepts natural gas, manufactured and LP mixtures for flexible deployment.
• Suitable for thermostat-actuated installations, including swimming pool heaters.

What comes with the purchase and how can I get help if I’m uncertain?

Every valve includes PRYSM’s one-year warranty and access to customer support for model lookup or installation questions. If your OEM number isn’t listed, reach out with your unit model and specifications so support can verify compatibility before you install.

• 1-year warranty backed by PRYSM for parts and workmanship assurance.
• Customer service available for model lookup and compatibility checks.
• Clear specifications provided to match inlet size, electrical range and pressure requirements.

Who is this for? Installers, HVAC technicians, facilities managers and informed DIYers who need a dependable, cross-reference gas valve to replace discontinued or hard-to-find OEM parts will find the PRYSM ROBERTSHAW 700-506 a practical option. It’s especially useful when systems call for a valve with thermostat actuation, broad gas-type compatibility and high BTU capacity. For any uncertainty about fit, use PRYSM’s customer support to confirm your unit’s requirements before purchase.