Installation 7
Initial Start-Up
NOTICE NEVER operate pump with discharge
valve completely closed. Pump can destroy itself if
run with discharge shut off (“deadheaded”).
NOTICE To avoid sand-locking pump, follow
procedure below when starting pump for the
first time. NEVER start a pump with discharge
completely open unless you have done this
procedure first.
1. Connect a pipe elbow, a short length of pipe
and a gate valve to pump discharge at well
head (see Figure 10).
2. Mount fused disconnect switch, motor control
box (3-wire pump), or magnetic starter
(1-1/2HP 3-wire pump) in a permanently
weather proofed place. Make sure that controls
will not be subjected to extreme heat or
excess moisture.
3. Make sure controls are in OFF position.
4. Connect motor leads and power supply to
fused disconnect switch, motor control box,
or magnetic starter (see Figure 1). Do not start
pump yet.
5. Set gate valve on discharge 1/3 open; start
pump (see Figure 10).
6. Keep gate valve at this setting while water
pumps out on ground. Let it run until water is
clear of sand or silt. To check solids in water, fill
a glass from pump and let solids settle out.
7. When water is completely clear at 1/3 setting,
open gate valve to approximately 2/3 open and
repeat process.
8. When water is completely clear at 2/3 setting,
open gate valve completely and run pump until
water is completely clear.
9. Remove gate valve for permanent installation
near tank (see Figures 11 and 12).
10. Install sanitary well seal or pitless adapter unit,
well unit, electrical conduit and surface piping
according to local code requirements.
C onnecting to Tank /
Water System
Risk of explosion . Submersible
pumps can develop very high pressure in some
situations. To prevent tank failure, install a
pressure relief valve able to pass full pump flow
at 75 PSI (517 kPa) when using an air over water
pressure tank. Install a pressure relief valve
capable of passing entire pump flow at 100 PSI
(690 kPa) when using a pre-charged pressure
tank. Install this relief valve between pump
and tank.
NOTICE Allowing pump or piping system to
freeze may severely damage pump and will void
warranty. Protect pump and entire piping system
(including pressure tank) from freezing.
Standard Tank Hookup:
See Figure 11 for piping connections to standard
pressure tank and for correct distance of bleeder
orifices from pressure tank.
Pre-charged Pressure Tank Hookup:
See Figure 12 for piping connections to pre-
charged pressure tank.
NOTICE Check air pre-charge in tank before
starting pump. Adjust pre-charge to 2 PSI
(13.8 kPa) below pump cut-in setting. (For
example, a pre-charge tank used with a 30-50
switch should be pre-charged with air to 28 PSI
(193 kPa)). Adjust pre-charge by either adding or
bleeding air through air pressure valve located
on top of tank. Check pre-charge annually and
adjust as needed.
Electrical Grounding Information
Risk of electric shock . Can shock,
burn or kill. To reduce the risk of electrical
shock during pump operation, ground and bond
the pump and motor as follows:
•
To reduce risk of electrical shock from metal
parts of the assembly other than the pump, bond
together all metal parts accessible at the well
head (including metal discharge pipe, metal
well casing, and the like). Use a metal bonding
conductor at least as large as the power cable
conductors running down the well to the pump’s
motor.
• Clamp or weld this bonding conductor to the
grounding means provided with the pump, which
will be the equipment-grounding terminal, the
grounding conductor on the pump housing, or an
equipment-grounding lead (the conductor having
green insulation).
• Ground the pump, motor, and any metallic
conduit that carries power cable conductors.
Ground these back to the service by connecting
a copper conductor from the pump, motor, and
conduit to the grounding screw provided within
the supply-connection box wiring compartment.
This conductor must be at least as large as the
circuit conductors supplying the pump.
Figure 10 - Typical pump start-up
Control
box
or
electrical
disconnect
box
Temporary wiring
to control box or
electrical disconnect box
Temporary piping
Gate valve
Pump in well
6470 1111
Pump installation
for developing a well
Summary of Contents for 102890199
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