and F series units

For most York 90% modulating units

If the pilot light ignites but the main burner fails to kick on

12" probe is unavailable

Quiet Operation: The soft-start capability reduces mechanical stress on the blower wheel and eliminates the noisy "thump" associated with single-speed motors

Siemens Building Technology 656-0009 Valve 319848-301 and F series unitsThe Siemens Building Technology 656 0009 is a high performance pneumatic mixing valve designed for precision control of hot water, chilled water, and low pressure steam in terminal unit applications. Featuring a 1 2" flare connection (OD SAE), this normally open 3 way assembly is a staple for veteran techs servicing fan coil units, radiation systems, and reheat coils. This Powermite 656 series valve operates within a 10 15 psi spring range, a critical