Siemens Building Technology 257-02040 Valve Assembly 319848-301 Precision Staging: Supports multi-stage heating

Precision Staging: Supports multi-stage heating and cooling to prevent short-cycling and improve overall system efficiency and dehumidification

This medium-sized enclosure features a patented double-wall construction that provides an extra layer of protection against unauthorized setpoint adjustments and physical damage

persistent voltage drops or physical signs of overheating at the connector usually indicate the need for a replacement

and outdoor condensers into a single

Siemens Building Technology 257-02040 Valve Assembly 319848-301 Precision Staging: Supports multi-stage heatingThe Siemens Building Technology 257 02040 is a specialized 2 way normally open control valve assembly designed for high performance hydronic flow regulation. As a veteran grade pneumatic HVAC control valve, this unit is engineered with a 1 2 inch angle NPT by union male connection, facilitating streamlined installation in tight mechanical spaces. The forged brass body and internal brass trim ensure rugged reliability against the constant cycling of