ClimateMaster 33B0045N04 Expansion Valve 319847-401 manifold pressure for optimized burner

manifold pressure for optimized burner performance

We recommend checking the manifold cover nuts and following a star-pattern tightening sequence to the specified foot-pounds to ensure a gas-tight seal

a 3/8" aluminum orifice

ensure the vent is pointed downward or protected from moisture and debris using the 1 inch NPT connection

Designed for compatibility with Lennox indoor coils and air handlers

ClimateMaster 33B0045N04 Expansion Valve 319847-401 manifold pressure for optimized burnerThe ClimateMaster 33B0045N04 Expansion Valve is a critical metering device designed for precise refrigerant control within high efficiency geothermal and water source heat pump cycles. As a genuine OEM ClimateMaster replacement part, this thermal expansion valve (TXV) ensures the evaporator coil receives the exact mass flow of refrigerant required to maintain optimal superheat across varying load conditions. For a field technician, the 33B0045N04 is