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it replaces older part numbers like RLY30062 and is specifically compatible with Lochinvar Knight KB81-286 and WB81-211 units
Can this damper be mounted in any orientation
with a 7 VA transformer sizing
120-240 Vac
allowing for local adjustments without reconfiguring the global BMS logic
Siemens Building Technology 257-02033 Valve Assembly 320734-701 it replaces older part numbersThe Siemens 257 02033 is a 2 way normally open pneumatic valve assembly engineered for precise proportional control in heating and cooling applications. Built with a 1 2 inch NPT x Union Male connection, this unit features a 0. 63 Cv rating and utilizes equal percentage flow characteristics to ensure linear heat transfer across varying load conditions. The forged brass body is paired with brass trim and a high performance pneumatic actuator featuring
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