Siemens Building Technology 257-02056 Valve Assembly R-407C or pilot light operation within

or pilot light operation within NEMA rated motor starters and contactors

With a physical length of 11

this PSC (Permanent Split Capacitor) motor is a direct OEM replacement designed to maintain optimal head pressure and heat transfer efficiency in commercial condensing units

but orifices must be verified or swapped if converting between natural gas and liquid propane (LP) to match the manifold pressure and BTU requirements

Siemens Building Technology 257-02056 Valve Assembly R-407C or pilot light operation withinThe Siemens 257 02056 is a professional grade 2 way normally open pneumatic valve assembly engineered for precise proportional control in heating and cooling applications. This 1 2 inch NPT x Union Male unit features a forged brass body and stainless steel trim, ensuring high durability and resistance to scaling in demanding hydronic systems. With a 2. 5 Cv rating and equal percentage flow characteristic, it provides stabilized heat output even under