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and the Lennox Y8737 TXV Valve is the essential component for doing just that on high-capacity residential and light commercial units
Always cross-reference your specific heater model number to confirm a match
Designed specifically for integration with Aaon rooftop units and air handlers
this valve is the industry standard for maintaining suction-side integrity and mechanical efficiency
Raypak 004879F Gas Valve THPU32HP7Y and the Lennox Y8737 TXVThe Raypak 004879F Gas Valve is a critical combustion component designed for precise fuel regulation in high efficiency pool and spa heaters. Operating on a 24V AC intermittent ignition system, this valve is factory set for 4" WC natural gas but can be field converted with the appropriate regulator spring kit. Utilizing 3 4" NPT inlet and outlet ports, it provides high capacity flow rates necessary for large BTU inputs without excessive pressure