Design Envelope 4280 End Suction Pumps

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Summary
Applications
HVAC-system pumping and control; general purpose pumping; industrial/ process pumping and control (water or glycol based)
Description
End-suction horizontal pumping unit with integral vibration isolators up to 7.5kW (10hp) and integrated intelligent controls for easier installation and superior energy performance. Saves up to 75% in energy over comparable traditional constant speed or variable frequency operated pump installations
Materials
- Ductile iron e-coated casing
- Stainless steel impeller
- Sintered silicon carbide mechanical seal
Configuration
On-board Intelligent Variable Speed controls with Sensorless control. Controls enclosure UL Type 12 (IP55) indoor applications. 0.75-7.5 kW (1-10hp) range standard with Design Envelope permanent magnet (DEPM) motors that reduce losses by more than 20% over NEMA Premium efficiency. Network capable for remote performance management services.
Performance Range
1.5 to 63 L/s (25 to 1000 USgpm) flow; 3 to 48 m (10 to 160 ft) head (composite curves available)
Temperature
121^oC (250^oF )
Power
0.75 kW to 7.5 kW (1 hp to 10 hp)
Size
32 mm to 150 mm discharge (1.25" to 6")

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Integral vibration isolation eliminates the need for inertia bases or baseplates for base-mounted installations
Split-coupling design enables easy seal service without removal of pump or motor
Active Performance Management through internet connectivity provides lowest lifecycle operating cost

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Integrated intelligent controls provide fast and easy commissioning as well as reduced radio frequency interference/ improved electromagnetic compatibility
Balance rotor design, soft start controls, direct coupling to motor, and reduced overall weight minimize transmission of vibration
Optional sediment filters or separators for extended seal life in contaminated systems
Single-source responsibility for optimum design and field support
Independent operation through embedded Sensorless control or in conjunction with a building automation system (BAS)
Design meets ASHRAE 90.1 noise and vibration control recommendations – isolating transmission of vibration between the piping, pump and floor of the building

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New hydraulics included in Armstrong intelligent motors (PM Motors) in the 1-10hp range provides up to 30% in energy savings.
Choose 50:50 of design flow with embedded parallel sensorless control for additional energy savings through best efficiency staging
Integrated intelligent controls – combined with perfect component match-up and tuning – for up to 75% in energy savings over traditional constant speed and variable frequency operated pump installations