Carrier HH11AZ180 Safety Switch 320735-701 this Kunkle bronze liquid relief

this Kunkle bronze liquid relief valve provides reliable mechanical fail-safe performance under rigorous duty cycles

Common Questions Can this drier be used for normal operation instead of just clean-up

Its compact hermetic construction minimizes leak paths

Constant discharge from the relief valve typically indicates internal fouling or a worn seat

Includes Brackets and Hardware

Carrier HH11AZ180 Safety Switch 320735-701 this Kunkle bronze liquid reliefThe Carrier HH11AZ180 Safety Switch is a critical OEM replacement part designed for specific Carrier, Bryant, and Payne gas furnace and heat pump applications. This vent safety switch functions as a manual reset limit control, engineered to interrupt the heating cycle if it detects restricted venting or flue gas spillage. With a precise cut out temperature of 180F and a cut in temperature of 130F, it ensures the system operates within safe thermal