Lennox 36M63 Limit Switch mario The 54-inch capillary and nickel-plated

The 54-inch capillary and nickel-plated sensing bulb ensure responsive modulating snap-acting bypass control

Versatile Installation: Uni-Kit design is supplied with terminals that can be mounted in four different positions to match existing field wiring

use a mild dish soap or technician-grade degreaser

Replacement is typically required if the first check valve fails a certified backflow test

Always check your furnace's wiring diagram to ensure voltage compatibility before installation

Lennox 36M63 Limit Switch mario The 54-inch capillary and nickel-platedThe Lennox 36M63 Limit Switch is a critical safety component designed for precise thermal monitoring in HVAC residential heating systems. This L130 20F limit switch features a fixed temperature setpoint, engineered to open the electrical circuit at 130F and automatically reset when the temperature drops to 110F. As a genuine OEM replacement part, it ensures seamless furnace limit control, maintaining high limit safety standards to prevent heat