Process Flow Systems

VARIOspeed® 3R Duplex Control Panel

Variable Frequency Drive Controller in a NEMA 3R Enclosure for Indoor or Outdoor Use

VARIOspeed® 3R Duplex Control Panel
The VARIOspeed® 3R control panel is designed to control (2) three phase pumps in constant pressure control applications including booster pump, deep well submersible pump, and irrigation pump applications.
As flow and head conditions change in the pumping system, the VFDs are able to automatically control the pump speed and maintain a constant discharge pressure. The desired set pressure is entered on the display inside the panel. The pressure transducer measures the pump discharge pressure.
Not for use with sewage pumps.
 
Features
 
VARIOspeed® 3R Panel Components:
 
Enclosure measures 24” x 20” x 8” (61 x 51 x 21 cm) (up to 5hp) and 30” x 24” x 10” (72 x 61 x 26 cm) (7.5 to 20hp) steel NEMA 3R for indoor or outdoor use.
Vents for VFD cooling
Fan and Thermostat for 7.5 HP and larger HP models
Raised Terminals for easy field connections.
Circuit Breaker Disconnects
Variable Frequency Drives
Fan Control Circuit Breaker
(240V models only)
Control Transformer
(480V models only – not shown)
Externally mounted run indicator LEDs
Externally mounted Pump Hand-Off-Auto selector switches
 
Display Features:
 
4 line/20 character display
Rotary/push button for menu navigation and editing
Left arrow button
ESC button
Green LED run indicator
Red LED fault indicator
 
Features:
 
Run Dry protection
High pressure protection
System fault log
Entire control system (panel and sensor) is UL Listed to meet and/or exceed industry safety standards
Dual safety certification for the United States and Canada
Standard package includes a 0-200 PSI pressure transducer
Five-Year Limited Warranty on control panel; one-year limited warranty on transducer
 
Specifications
 
ENCLOSURE:
24 x 20 x 8 inches (61 x 51 x 21 cm) fiberglass NEMA 3R for indoor or outdoor use with removable mounting feet and locking latch.
NOTE: Voltage and amp range selected may change component layout in enclosure.
 
POWER:
Available HP Range
(208V-240V) 1.5HP – 20HP
(480V) 7.5HP – 20HP
 
CONTROL:
PID Control
Adjustable electronic overload
Auto Start on pressure drop (adjustable)
Auto Stop on low Hz (No-Flow – sleep mode)
 
PRESSURE TRANSDUCER:
0-200 PSI (included) 1/4″ NPT Male, NEMA 4X rated with 20 ft. cable
 
ENVIRONMENTAL:
Operating temperature: 14°F to 104°F (-10°C to 40°C)
Storage temperature: -4°F to 131°F (-20°C to 55°C)
Altitude: Maximum of 3,280 ft. (1000m) above sea level