White Rodgers 789A-751A1 HSI THPU32HP7Y Common Questions: Which refrigerant types

Common Questions: Which refrigerant types are compatible with this coil

this assembly ensures precise control of exhaust flow and prevents backdrafting in commercial and heavy-duty residential water heating applications

The 1-inch sweat connection ensures a reliable

Its durable construction resists corrosion in harsh environments

which are critical for longevity in high-ambient plenum environments

White Rodgers 789A-751A1 HSI THPU32HP7Y Common Questions: Which refrigerant typesThe White Rodgers 789A 751A1 is a high performance 120V Silicon Nitride Hot Surface Ignitor (HSI) engineered specifically as a Carrier LH33ZG001 direct replacement. As a veteran technician knows, upgrading from older silicon carbide to nitride technology significantly reduces nuisance service calls by providing superior physical durability and faster thermal response. This furnace ignitor features a robust silicon nitride heating element and is rated