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your location: Products > Packaged Pumping Systems > Chilled Water Packaged Pumping Systems > Variable Primary Flow Systems (VPF)
Chilled Water Packaged Pumping Systems - Variable Primary Flow Systems (VPF)
Variable Primary Flow Chilled Water Packaged Pumping System
The Model VPF, Variable Primary Flow Chilled Water Packaged Pumping System is a UL-listed factory assembled and tested system used in conventional building cooling systems which utilizes Chilled Water as the cooling source. The VPF provides significant power savings by use of a variable speed pump to simultaneously provide water to the chiller and to the building system. Variable Frequency Drives automatically control the speed of the pumps based on actual building system demand. Typically, Differential Pressure Transmitters are placed across building cooling system zones. The transmitters signal to the VPF System Controller which controls a Variable Frequency Drive for each variable speed, chilled water pump. Minimum required chiller flow is automatically maintained by a flow meter mounted on the inlet of each chiller. The system chillers cool the chilled water to 44oF and are automatically staged on/off based on actual building system demand from controllers energy consumption monitor. Actual building system energy consumption is displayed on the controller's touch screen operator interface. The Model VPF provides air-free chilled water, while automatically refilling under normal system losses. The VPF also allows for system thermal expansion based on the building system volume. A UL-listed System Controller with single-point power connection is pre-wired to all electrical sources. Variable Frequency Drives may incorporate Manual or Automatic bypasses. Each system is custom engineered and designed to meet specific system requirements. All systems are fabricated and welded per ASME Section IX Code and Standards, and are Hydrostatically tested prior to shipment. The Model VPF speeds installation and start-up of building cooling systems which provide significant savings to contractors, engineers, and building owners.
View VPF Specifications
View detailed information on Model VPF, Variable Primary Flow Chilled Water Packaged Pumping System (PDF)
Legend
A. Base-mounted, End-Suction Centrifugal Pumps
B. Shell and Tube , U-tube Heat Exchanger with Steam Trap
C. Triple Duty Valve
D. Air Separator with auto air vent
E. Expansion / Compression Tank
F. System Inlet / Outlet Thermometers
G. Pump Differential Pressure Gauge
H. UL-listed Electrical Control Panel
I. Make-up Water Assembly
Standard Construction
System Options
Conditions of Operation
Notes:
1. Savings are based on max. potential savings at max. pump
capacity on 8600 hr./yr. of continuous operation.
2. Power costs at $0.10/kW-hr.
3. Savings assume continuous operation of one (1) 25 Hp Pump.
4. Savings based on approx. calculations.
EnviroSep Chilled Water Packaged Pumping Systems - see also:
Constant Primary / Constant Secondary (CPCS) ~ Constant Primary / Variable Secondary (CPVS)
For more information on how EnviroSep can provide your company with an Integrated Solution for your Fluids Handling, Heat Transfer, and/or Energy Recovery needs, use our quick & easy Online Quote Request Form, call our main office at 843-546-7400 (you can fax us at 843.546.7407) or
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