protecting downstream pneumatic tools and air quality

Engineered for reliable HVAC spark ignition

The unit features a selectable jumper or switch configuration on the circuit board (typically labeled W904) to toggle between temperature scales during the initial setup

These classifications refer to the insulation's ability to handle specific temperature rises

Common Questions Is a linkage kit required for the M400A-VB

Lennox 13Y19 TXV Valve 318973-401 protecting downstream pneumatic tools andThe Lennox 13Y19 TXV Valve provides critical refrigerant metering for high performance residential and commercial split systems. This 1. 5 3 Ton R410 TXV Valve is engineered to maintain precise superheat levels by regulating flow into the evaporator coil, preventing liquid slugging and ensuring the compressor operates within design parameters. As an externally equalized thermostatic expansion valve, the 13Y19 responds dynamically to load variations,