Sporlan 903031P Pressure Control R-410A The internal gear train is

The internal gear train is submerged in oil to minimize friction and thermal wear

the tube should extend at least 2/3 across the duct width to ensure a proper air sample is captured

it is best practice to retain or source new 3/4" NPT plugs if they are not already installed in your specific unit configuration

Always verify total motor amperage does not exceed 8 amps

the 1178406 features a non-bleed design that ensures stable system pressures during the off-cycle

Sporlan 903031P Pressure Control R-410A The internal gear train isThe Sporlan 903031P Pressure Control Valve, also identified as the Parker Sporlan LAC 4 100, is a high performance low ambient head pressure control designed for small capacity refrigeration and air conditioning systems. This three way modulating valve maintains stable liquid line pressure by restricting refrigerant flow from the condenser while simultaneously bypassing hot gas directly to the receiver during low outdoor temperatures. By effectively