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The INVENSYS CLIMATE CONTROLS 720-051 is a gas valve designed for use with direct spark ignition (DSI) and hot surface ignition (HSI) systems in HVACR heating equipment. Gas valves of this type control the flow of fuel to the burner assembly, opening and closing in response to signals from the ignition and control circuit. This valve is a service replacement part suited for technicians performing repairs on gas-fired heating systems where the original valve has failed or degraded.
This valve is applicable to gas-fired furnaces and heating units equipped with DSI or HSI ignition systems. It serves as an OEM-style replacement for residential and light commercial HVACR equipment. Licensed HVAC technicians performing maintenance, diagnostics, or component replacement will typically encounter this part during service calls on systems with failed ignition-control valve combinations.
Designed as an OEM-style replacement gas valve for HVACR heating systems equipped with DSI or hot surface ignition controls. Consult equipment service documentation to confirm fitment before installation.
Gas valve replacement must be performed by a licensed HVAC technician in accordance with local codes and the applicable provisions of the IFGC. Shut off the gas supply and disconnect electrical power to the unit before beginning any service work. Do not attempt to modify or reuse damaged valve bodies, fittings, or wiring harnesses. After installation, leak-test all gas connections using an approved leak-detection solution before restoring power and relighting the system.
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