Watts 0163746 Valve 340155-7024 This mechanical thermostat operates with

This mechanical thermostat operates with two independent Single Pole Double Throw (SPDT) circuits to maintain energy-saving comfort zones between heating and cooling demands

For technicians working on unit heater venting

if the ohms are infinite or significantly outside the specified range

Optimized Flow: Internal geometry is engineered to maintain refrigerant velocity and prevent pressure drops across the transition

the Lennox Y8737 is specifically calibrated for R410A refrigerant and its specific pressure-temperature relationship

Watts 0163746 Valve 340155-7024 This mechanical thermostat operates withThe Watts 0163746 (Model 1 LL40XL Z2) is a high capacity temperature and pressure relief valve designed specifically for commercial hot water supply tanks and large boilers. Featuring a 1 inch NPT male inlet and 1 inch NPT female outlet, this bronze body valve is engineered for 500,000 BTU hr systems where safety and high discharge capacity are mandatory. The non mechanical seat to disc alignment ensures reliable operation at a pressure relief setting