Armstrong's Intelligent variable-speed pump units can be controlled through a building automation system

Armstrong Limited has introduced two models to its Intelligent Variable Speed (IVS) Pump Series: the 4300 Split-Coupled Vertical In-Line and the 4302 Split-Coupled dualArm. The models range in size from 1.5hp to 75hp. Both the 4300 and 4302 IVS units can be controlled through a building automation system (BAS) or the Armstrong Integrated Pumping System (IPS).

The Armstrong IVS Pump is also available with a sensorless option, providing savings in several areas including capital, installation and energy costs. The IVS Sensorless Series does not require the installation of a differential pressure sensor. Eliminating the need for a sensor leads to a reduction in equipment, installation and wiring costs.

The IVS Sensorless Series has a variable frequency drive (VFD) built into the pump, making the unit a space-saving solution for any plant room. The VFD is pre-programmed at the factory to meet HVAC system demands, but is also adjustable on-site, giving an installer the flexibility to replicate sensor positions at various distances from the pump. This removes problems associated with incorrect sensor placement and allows for optimal energy savings.

The sensorless option is embedded into the IVS variable speed drive, which means the pump automatically changes speed to meet system demands. This feature helps to save energy and also extends the life of the pump and the motor bearings.

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