Watts 0066605 Xpansion Tank Els PW 17895 the 125-degree thermal limit switch

the 125-degree thermal limit switch prevents catastrophic component failure

ensuring stable discharge air temperatures even during rapid outdoor ambient shifts

When diagnosing a system with a locked rotor or a humming outdoor fan

you know that consistent ignition and flame sensing are the backbone of any reliable gas heating system

With an interrupting rating of 200

Watts 0066605 Xpansion Tank Els PW 17895 the 125-degree thermal limit switchThe Watts 0066605 ETX 15 is a professional grade non potable thermal expansion tank designed for closed loop hydronic heating systems. Engineered to manage thermal expansion effectively, this unit maintains system pressure safely below the relief valve setting, preventing unnecessary discharge and system stress. The 2. 1 gallon carbon steel tank features a rugged butyl diaphragm that separates system water from the pre charged air cushion, drastically