this 10k Type 2 thermistor facilitates tight control over outdoor air resets and mechanical cooling strategies

Its drop-in design allows for rapid field replacement without necessitating the removal of the TEV valve body

or physical damage during descale procedures

Common Questions Which actuators are compatible with the AV-821

Persistent tripping is typically caused by insufficient combustion air

Watts 0556031 Valve this 10k Type 2 thermistorThe Watts 0556031 (Model LFN36M1 3 4) is a heavy duty 3 4 inch lead free vacuum relief valve designed to protect water heaters and supply tanks from atmospheric pressure imbalances. Formerly cataloged under part number 0138458, this updated lead free version is vital for preventing vacuum conditions that siphon water away, which can lead to heater burnout or catastrophic tank collapse. This valve is engineered with a low profile design and a durable