Water Systems

Abbreviations

A Amp or amperage MCM Thousand Circular Mills
AWG American Wire Gauge mm Millimeter
BJT Bipolar Junction Transistor MOV Metal Oxide Varister
°C Degree Celsius NEC National Electrical Code
CB Control Box NEMA National Electrical Manufacturer Association
CRC Capacitor Run Control Nm Newton Meter
DI Deionized NPSH Net Positive Suction Head
Dv/dt Rise Time of the Voltage OD Outside Diameter
EFF Efficiency OL Overload
°F Degree Fahrenheit PF Power Factor
FDA Food & Drug Administration psi Pounds per Square Inch
FL Full Load PWM Pulse Width Modulation
ft Foot QD Quick Disconnect
ft-lb Foot Pound R Resistance
ft/s Feet per Second RMA Return Material Authorization
GFCI Ground Fault Circuit Interrupter RMS Root Mean Squared
gpm Gallon per Minute rpm Revolutions per Minute
HERO High Efficiency Reverse Osmosis SF Service Factor
hp Horsepower SFhp Service Factor Horsepower
Hz Hertz S/N Serial Number
ID Inside Diameter TDH Total Dynamic Head
IGBT Insulated Gate Bipolar Transistor UNF Fine Thread
in Inch V Voltage
kVA Kilovolt Amp VAC Voltage Alternating Current
kVAR Kilovolt Amp Rating VDC Voltage Direct Current
kW Kilowatt (1000 watts) VFD Variable Frequency Drive
L1, L2, L3 Line One, Line Two, Line Three W Watts
lb-ft Pound Feet XFMR Transformer
L/min Liter per Minute Y-D Wye-Delta
mA Millamp Ω ohms
max Maximum