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VPx Series – Variable Speed Electric Fire Pump Controllers (VFD)

Manufactured in Canada for all markets

VPx Series – Variable Speed Electric Fire Pump Controllers (VFD)

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  • Designed to maintain a constant pressure output from the fire pump
  • A variable frequency drive (VFD) is used to vary the speed of the fire pump’s electric motor, taking into consideration the constant pressure output required.
  • The variable speed drive will ramp up the electric motor speed to obtain the desired constant pressure output in maximum 10 seconds.
  • Designed to maintain a constant pressure output from the fire pump
  • A variable frequency drive (VFD) is used to vary the speed of the fire pump’s electric motor, taking into consideration the constant pressure output required.
  • The variable speed drive will ramp up the electric motor speed to obtain the desired constant pressure output in maximum 10 seconds.
  • Single operator for both isolating switch and circuit breaker
  • Surge arrestor
  • Locked rotor protector
  • Line reactor 5%
  • Mode Selector Switch
    • VFD
    • Bypass
  • VFD Fault and VFD Bypass visual indication
  • Start and stop pushbuttons
  • Run test push button
  • Emergency start handle
  • Phase reversal indication
  • Remote start / deluge valve start provision
  • Pressure transducers and run test solenoid valve externally mounted
  • Audible alarm
  • Alarm contacts for remote indication
  • Available with automatic transfer switch
  • Built to NFPA 20 (latest edition)
  • Underwriters Laboratory (UL)
    • UL218 – Fire pump controllers
  • FM Global – Class 1321/1323
  • ViZiTouch V2.1 operator interface
    • Voltage and amperage display
    • Constant pressure output set-point display
    • System pressure, cut-in and cut-out display
    • VFD Hertz display
    • Pressure and event recorder
  • NEMA 12 ventilated assembly
  • Conductor entry gland plates
  • Lifting lugs
  • Doors with keylock handle and quarter-turn latches
  • Red RAL3002
  • Powder coated / glossy textured finish
  • Surge suppression
  • Disconnecting means
    • Single operator for both isolating switch and circuit breaker
    • Door interlocked in the ON position
  • Locked rotor protector
  • Visual indications
    • Alternate (emergency) isolating switch in the OFF position
    • Alternate (emergency) voltage phase to phase
    • Transfer switch in normal position
    • Transfer switch in Alternate (emergency) position
  • Transfer switch test pushbutton
  • Bypass for re-transfer and generator shutdown
  • Electrically operated and mechanically held in the normal or alternate position
  • Provision for manual operation

Time delays:

  •  To override momentary normal power outages before transfer to the alternate (emergency) power source. Factory set at 3 seconds.
  • To retransfer to normal power. Instantaneous retransfer in case of alternate (emergency) power failure. (Factory set at 5 minutes.)
  • To allow engine generator cool-down after retransfer to normal source. Factory set at 5 minutes.

Voltage, frequency and phase reversal sensing:

  •  Voltage sensing on all phases of normal power, set at 85%. A voltage below this value or phase reversal initiates transfer to the alternate (emergency) power source.
  •  Alternate (emergency) power source voltage and frequency sensing set at 90%. A voltage or frequency above this value initiates transfer to the alternate (emergency) power source.
  •  Voltage sensing on all phases of normal power, set at 90%. A voltage above this value initiates retransfer to normal power.

Remote alarm contacts

  • Emergency power isolating switch in the OFF position
  • Transfer switch in normal position
  • Transfer switch in emergency position

Generator start connection

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Available Models
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