Rugged Construction: Steel enclosure with knockouts simplifies conduit banking and protects internal components from debris

The unit is unidirectional to ensure proper filtration through the internal pad

This 48Y NEMA frame motor is built with an open air-over (OAO) enclosure to maximize heat dissipation during continuous operation

Q: Can this thermostat be used in multi-zone heating setups

Lennox 78H40 Expansion Valve THPU32HP7Y Rugged Construction: Steel enclosure withThe Lennox 78H40 Expansion Valve is a critical 6 ton thermostatic expansion valve (TXV) engineered for precise refrigerant metering in high capacity light commercial and residential cooling systems. As a veteran grade HVAC replacement part, the 78H40 (identical to Lennox 78H4001) regulates refrigerant flow into the evaporator coil by sensing heat load changes, preventing liquid slugging and ensuring the compressor receives superheated vapor. This TXV