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SubDrive
Constant Pressure Controller
By Franklin Electric
SubDrive Family
SubDrive
Constant Pressure Controller

The CP Water – SubDrive 75 uses state-ofthe-art electronics technology to provide
constant water pressure through variable
speed control of standard ¾, 1 or 1½ Hp
pump ends, adding significant value and
performance to Residential & Commercial
water systems.

Produce 1½ Hp performance with a ¾ Hp
pump end.
SubDrive
Constant Pressure Controller
CP Water – SubDrive 150 was the
second addition to the CP Water family of
SubDrives.
 The SubDrive 150 provides constant water
pressure through variable speed control of
a 1½ , 2 or 3 Hp pump ends to produce
the performance of a 3 Hp pump.
 The
SubDrive
Constant Pressure Controller
CP Water – SubDrive 300 is the latest
addition to the CP Water family of
SubDrives.
 The SubDrive 300 provides constant water
pressure through variable speed control of
a 3 or 5 Hp - 4”& 6” pump ends to produce
the performance of a 5 Hp pump curve.
 The
SubDrive Constant Pressure
System
SubDrive
SubDrive
 Application
Data
Application Data

CP Water – SubDrive 75 is designed for use
with a ¾ Hp pump mounted to a 1½ Hp 3 phase
Franklin Electric motor. 1 Hp and 1½ Hp pump
end may also be used.

This innovation variable speed controller is
designed for applications with a wide range of
flow demand, includes large homes, ground
source heat pumps, restaurants, bed & breakfast
and sprinkler systems.

CP Water SubDrive 75 is UL recognized for
U.S.A. and Canada.
Application Data

CP Water – SubDrive 150 is designed for use in
residential or light commercial applications with
a 1½ Hp pump mounted to a 3 Hp Franklin
Electric 3-phase motor. 2 Hp and 3 Hp pump
end may be used.

Ideal for multi home and irrigation applications.
Application Data

CP Water – SubDrive 300 is designed for use in
residential or light commercial applications with
a 3 Hp pump mounted to a 5 Hp Franklin Electric
3-phase motor. 5 Hp pump end may be used.

For flows of up to 90 gpm
SubDrive
 Application
Data
 Specifications
Specifications

Input (from power source)




Voltage
190 – 260V 1-phase
Frequency
60/50 Hz
Amps (RMS) SD75 11A, SD150 23A, SD300 36A
Output (to motor)



Voltage
Variable / 3-Phase
Frequency
Variable (30-80 Hz)
Amps (RMS) SD75 5.9A, SD150 10.9A, SD300 17.8A
Specifications
Model
Pump Rating
Motor Rating
SubDrive 75
¾, 1 or 1½ Hp
1½ Hp, 230 VAC
(Three-phase)
SubDrive 150
SubDrive 300
(Selectable)
1½ , 2 or 3 Hp
(Selectable)
3 or 5 Hp
(Selectable)
3 Hp, 230 VAC
(Three-phase)
5 Hp, 230 VAC
(Three-phase)
SubDrive
 Application
Data
 Specifications
 Features
& Benefits
Features & Benefits
 Constant
water pressure with a wide range
of settings (25 to 80 psi). Better than city
pressure. 50 psi factory setting.
 Soft
start feature prevents water hammer
and increases motor life.
 Less
stress & torque on riser pipe.
 Works
with small pressure tanks or with
larger tanks already in place.
Features & Benefits
 UL
recognized for U.S. and Canada.
 Smart
Reset technology allows well
recovery before restarting the pump.
 Single-phase
input power with three-phase
motor performance (SD75, SD150, SD300)
Features & Benefits
 Works
with a small pressure tank or larger
tanks already in place.


Minimum tank volume: 2 gallons.
With 3 phase motor, no need to pull the pump.
 Excellent
radio frequency interference
shielding.
 Less
inrush current = longer motor life.
Features & Benefits
 Less
operating cost
 Uses only the horse power required
 Reduced
wire size (SD75, 150, 300) due to
3-phase.
I.E. 350 Ft length:
• 3Hp 230V single phase #8
• 3Hp 230V three phase #12
Features & Benefits
 Wide
range of input voltages allowable
 Easy
to install
Standard System
SubDrive System
$2, 951.60
$2,875.96
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