Resideo by Honeywell SV9520H8513 SmartValve Gas Control 24V 1/2" NPT Direct Hot Surface Ignition

The Resideo SV9520H8513 SmartValve System Control combines gas flow control and electronic direct main burner ignition sequencing functions into a single integrated unit, designed for gas-fired heating appliances. This control features a 120V hot surface igniter that lights the main burner flame, providing reliable ignition for furnaces, boilers, and other combustion equipment.

Key Features:

• Fast-slow opening capability for controlled gas flow modulation
• 1/2" NPT x 1/2" NPT inlet and outlet connections
• 3.5 inch water column pressure regulator setting
• 15-second pre-purge feature ensures safe gas flow before ignition
• Provides prepurge, postpurge and timed trial for ignition with multiple ignition trials and auto reset from lockout
• Diagnostic LED indicates system status for easy troubleshooting
• Includes LP conversion kit for propane applications
• Operating voltage: 24 VAC
• Operating temperature range: 0 to 175 degrees Fahrenheit

This SmartValve provides all gas ignition safety functions by controlling gas flow, ignition source, and a 120 Vac combustion air blower, while monitoring the appliance airflow proving switch circuit and limit string to assure proper appliance operation. The control communicates directly with the ST9160 Electronic Fan Timer (EFT) in typical forced warm air furnace applications, and can also interface with the 208907 Terminal Board for compatibility with power-stealing thermostats.

This system is suitable for a wide range of fan-assisted combustion, gas-fired appliances including furnaces, rooftop furnaces, boilers, unit heaters, infrared heaters, water heaters and commercial cooking appliances. This valve replaces Honeywell part numbers SV9520H8026, SV9520H8034, SV9520H8042, SV9520H8067 and Ducane part numbers 20284901, 20430701, and 28M9501.

Note: This product must be installed by a qualified/licensed contractor and set up with properly calibrated test equipment.