Choosing A Pump System - Pentair Pentek Series Electronic Manual

SECTION 14: Appendix

14.2 Choosing A Pump System

A typical well application can be set up using one of three
electrical configurations for single-phase power. The
samples below are based upon a system using a 1.5 HP,
20-22 gpm pump, with 400 feet of wire from electrical
disconnect to the motor. All configurations shown are
suitable methods for residential applications.
Ventilated
Well Cap
Submersible
Cable
Pitless
Adapter
Check
Valve
Add Torque Arrestor
(especially needed with
plastic pipe)
Tape Cable
To Pipe
Pump
Motor
"Good" System
Features
• Pressure Switch
• Wire, (10-2 w/ground)
• 1.5 HP, 20-22 gpm pump
• 1.5 HP, 2-wire motor
• 85 gal. Tank
• Optional Motor Protection (SPP-233P)
Benefits
• Cost
• Simple to use
• PENTEK PSC motor offers lower
operating cost
Control Box
(3-wire Models)
Relief
Valve
Union
"Better" System
Features
• Control Box
• Pressure Switch
• Wire, (10-3 w/ground)
• 1.5 HP, 20-22 gpm pump
• 1.5 HP, 3-wire motor
• 85 gal. Tank
• Optional Motor Protection (SPP-233P)
Benefits
• Capacitors and switches can be
replaced without removing pump
• CSCR control offers higher efficiency
• Higher starting torque than 2-wire
Electrical Disconnect
Pre-charged Tank
Pressure Switch
Pressure Gauge
Gate Valves
"Best" System
Features
• VFD
• Pressure Transducer
• Wire, (12-3 w/ground)
• 1.5 HP, 20-22 gpm pump
• 1.5 HP, 3-Phase motor
• 6 gal. Tank
Benefits
• "City-like" pressure
• Lower operating costs
• Soft start/stop
• Motor protection built into VFD
To House Service
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