Use a multimeter to check for electrical continuity

The Spence 05-01674-00 is an industrial-grade replacement diaphragm specifically engineered for the 4-inch Spence E2 main valve

Using the Carrier 338106-755-CBP ensures the unit maintains its original engineering specifications and safety ratings

Integrated 1000 Ohm Nickel RTD provides accurate temperature feedback without the need for a secondary wall-mounted device

this transformer is specifically rated for 208/230V primary electrical services

Robertshaw 4590-226 Bushing 321894-708 Use a multimeter to checkThe Robertshaw 4590 226 Bushing is a heavy duty flush bushing designed for high integrity piping transitions in commercial and industrial HVACR systems. Built for professional grade reliability, this 1" MPT x 3 4" FPT reducer enables a secure, leak resistant connection when downsized plumbing or gas lines are required. The flush mount design ensures a low profile fit, minimizing physical interference in tight manifold configurations and equipment