System Components - Flint & Walling Commander 3 Manual

DO NOT handle pump with wet hands or when
standing in water as fatal electrical shock could
occur. Disconnect main power supply before
handling pump for any reason.
Shut off power source when voltage drops below 210 on
230 volt installations.
Protect the power cable from coming in contact with sharp
objects, oil, grease, hot surfaces or chemicals. DO NOT kink
the power cable. If damaged replace immediately.
NEVER leave the control box, fused disconnect switch, or
covers open (either partially or completely) when not being
worked on by a competent electrician or repairman.
Always use caution when operating electrical
controls in damp areas. If possible, avoid all contact
with electrical equipment during thunderstorms or
extreme damp conditions.
Install all electrical equipment in protected area to prevent
mechanical damage which could produce serious electrical
shock and/or equipment failure.
Pump and controls must be securely and adequately
grounded as specified in section 250-43 item (A) of
the U.S.A. National Electric Code (NEC) and Section
26-954 Canadian Electrical Code. Failure to do so
could result in a fatal injury.
Do not use power factor correction capacitors with the drive
controller. Damage will result to both motor and drive.
NOTE: Units with the "CSA/CUS" mark are tested to UL standard
CSA standard C22 .2 No . 274 & UL61800-5-1.

SYSTEM COMPONENTS

Please be sure that you have all major system components
necessary to properly install the submersible pump system. Other
components may also be necessary depending on the application
requirements.
1. Submersible pump end
2. Submersible motor
3. Variable speed controller
4. Pressure tank
5. Pressure switch or transducer (included)
6. Pressure relief valve (purchased separately)
7. Pressure gauge (purchased separately)
PIPING
General Information
Discharge piping is recommended to be 1 .25" for installations
in which flows will exceed 12 GPM. The use of smaller pipe
will increase friction losses and can severely limit the maximum
capacity of the pump system.
Many submersible pumps are capable of pressures exceeding
325 PSI under maximum conditions, select pipe accordingly.
Consult your pipe supplier to determine the best pipe material for
the installation.
DO NOT use this pump to pump flammable liquids such as
gasoline, fuel oil, kerosene, etc. Failure to follow the above
warning could result in property damage and/or personal
injury.
motor connections.
This equipment should be installed by technically
qualified personnel. Failure to install it in compliance
with national and local electrical codes and within stated
recommendations may result in electrical shock hazard, fire
hazard, unsatisfactory performance, or equipment failure.
Pump Inspection
Prior to installation always check the pump, motor, controller, and
tank for damage.
Pressure Tank
Although a VFD system only needs a small tank to maintain
constant pressure a larger tank can be used. The pre-charge
setting of the tank should be set to 70% of the targeted pressure
of the system.
For best performance we recommend the following:
Submersible pump applications with PSC motors:
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2
The pump is intended for use in a well. Motor frame
must be connected to power supply ground or fatal
electrical shock may result. Do not use this pump in
swimming pools.
Capacitors inside the drive controller can still hold a
lethal voltage even after power has been removed.
Allow 10 minutes for dangerous internal voltage to
discharge before making changes to input power or
Do not use motor or system in swimming areas or in
fire suppression systems.
Minimum Tank
Pump Flow
Size
Rating
Up to 1 HP
Less than 12
gpm 2 Gal (7.6 liters)
(45.4 lpm)
12 gpm or
4 Gal (15.2
higher
liters)
(45.4 lpm)
Minimum Tank Size
Above 1 HP
4 Gal (15.2 liters)
8 Gal (30.3 liters)