Dwyer产品 BYDS系列 旁路风门控制开关 美国德威尔 压差表 流量计 差压计 差压开关 差压变送器
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Dwyer 美国德威尔

  • BYDS系列 旁路风门控制开关dwyer 德威尔
BYDS系列 旁路风门控制开关dwyer 德威尔

BYDS系列 旁路风门控制开关dwyer 德威尔

  • dwyer产品销售 产品选型 产品报价 技术支持 售后服务
  • 美国德威尔 压差表 流量计 差压计 差压开关 差压变送器
  • 产品广泛应用于暖通 空调 食品 制药 生物工程 智能楼宇 电厂 化工 水处理 环境监测 工业制造等领域
  • 产品描述:美国Dwyer德威尔仪器仪表制造有限公司(Dwyer Instruments,Inc.)是一家对差压、温度、液位和流量的测量,变送和控制等方面拥有众多精密仪器仪表产品并且在价格上有强竞争力的仪器仪表制造公司。
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BYDS系列。。,旁路风门控制开关
调整风门来控制区域静压
The Series BYDS Bypass Damper Switch is designed to control motorized bypass dampers. As individual zone dampers open and close, the system static pressure will rise and fall. In order to maintain proper airflow and static pressure through the HVAC system, a bypass system incorporating a floating type motorized damper and a static pressure control should be incorporated. A typical on/off pressure switch cannot operate in this application due to the high cycle rate that would result, eventually causing contact burnout. The BYDS static pressure control is equipped with a solid-state switching and timing circuit to enhance operation and improve long-term reliability in this demanding application.
CONTROL OPERATION
The BYDS Bypass Damper Switch is designed for use with a three wire floating point damper actuator used to control the static pressure on zone control systems requiring motorized bypass dampers. A bypass damper, bypasses air from the discharge air side of the HVAC unit back in the return air side. The air flow is modulated in order to maintain a constant static pressure in the system as individual zone dampers open and close. The static pressure control is equipped with solidstate switching which dramatically increases the life of the control. On an increase in static pressure the BYDS will send 24 volts out and start the actuator to drive open. When the static pressure reaches set-point the actuator will stop. After a ten second delay the actuator will start to drive the damper closed if there has not been an increase in static pressure. A green LED indicates when the damper is in the open position or being driven open. A 24 VAC transformer is required to power the BYDS control and damper actuator. The unit includes tubing and two static pressure probes.

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