Location Of The Pump; Details And Function Of Parts; Motor; Electrical Installation - Franklin Electric RM2 Series Owner's Manual

INTRODUCTION
A jet pump has many advantages other types of water
systems do not have. There are no working parts in the
well except for the injector on the deep well system. All
mechanical parts, motor, impeller, electrical controls,
etc., are above ground within easy reach. If service is
ever necessary, simple hand tools will do the job. This
jet pump installs easily and quickly without the need
for special tools or pump rigs. You can install it yourself
provided you closely follow the instructions contained
in this manual.
When the pump is received, examine it closely to make
sure there is no damage or broken parts that may have
occurred in shipping. If damage is evident report it
immediately to your dealer. Check the pump shaft to
make sure it turns freely by hand.

LOCATION OF THE PUMP

Decide on the area for the pump installation. Select a
pump location with adequate space for future pump
maintenance. It can be located in the basement or utility
room of your house, at the well, or between the house
and the well. If installed outside of the house, it should be
protected by a pump house with auxiliary heat to prevent
possible freezing. The well also should be protected for
sanitary reasons. We recommend the ceiling be 3 to 4
feet from the floor.
PIPING THE WELL
Suction tapping on the pump is 1-1/4", (FNPT) in size.
Suction pipe diameter should never be smaller than the
suction tapping. For deep well installation the drive line is
1". A jet pump performs best when installed close to the
well because suction lift and friction losses are kept to a
minimum. The tank should also be located as close to the
pump as possible to avoid excessive pressure and friction
losses. Do not reduce the sizes of pipe between the
pump and the water source; it will result in considerable
performance loss.

DETAILS AND FUNCTION OF PARTS

A jet pump is comprised of a centrifugal pump and an
injector. When the pump is filled with water and the motor
turned on, the impeller inside the pump case whirls the
water away from its center by centrifugal force, creating
a partial vacuum within the pump case. Water rushes into
this vacuum causing a pumping action, much the same
as when you drink liquid through a straw. Part of this
water flows at high speed through a restricted injector
contained in the pump case or if a deep well installation,
the injector is in the well. Water flowing through the
injector creates another partial vacuum which also
causes a pumping action. These two pumping actions,
centrifugal and jet, are the reason for the jet pump's
ability for creating water pressure and volume for
today's water systems.
Convertible Jet Pump
A Shallow Well Jet Pump is equipped with an injector
mounted in the pump case and can operate up to 25 feet.
A Convertible Jet Pump will operate the same as a
shallow jet pump but can easily convert to deep well
operation by removing the shallow well injector and
inserting a bypass plug in its place and putting a deep
well injector in the well.
INSTALLATION RECORDS
To keep an accurate record of your installation, be sure to
fill out the data.
Date of Installation_________Model No.___________
Depth of Well (ft) ________Depth of Water (ft)________
Inside Diameter of Well ________________________
Suction Pipe Size _______Disch. Pipe Size_________
Motor____________HP_______Voltage__________
Power Supply_____________Wire Size___________

MOTOR

A motor operating under normal conditions maintains its
rated performance indefinitely. This implies a clean, dry
motor with proper ventilation. To prevent overheating,
keep the motor clean and do not cover it preventing air
flow around the motor.
PRESSURE SWITCHES
Switches are pre-set for proper performance at the
factory and do not usually require adjustment. If
adjustment is necessary, switch should be regulated
according to the manufacturer's chart located in
the switch.

ELECTRICAL INSTALLATION

Improper wiring can result in permanent
C A U T I O N
damage to the motor. All electrical wiring should meet
the local electrical code.
W
HP
1φ
1/2 1490
3/4 1970
115/230 V
1 2650
1.5 3400
Check motor terminal cover or nameplate for wiring
instructions. The essential facts about your pump are:
1. 3450 rpm
2. Single-Phase
3. Heavy-Duty
4. All motors are wired for 230 Volts.
Consult your local voltage supply to make
Thermal Protection
W
5