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STA-RITE 400S Series Owner's Manual page 2

Submersible solids handling pump

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INSTALLATION
NOTICE: Install pump on a hard, level surface (cement,
asphalt, etc.). Never place pump directly on earth, clay or
gravel surfaces.
Piping
When installed in a sewage system, pipe must be capable of
handling semi-solids of at least 51mm (2
The rate of flow in the discharge pipe must keep any solids
present in suspension in the fluid. To meet minimum flow
requirements [61 cm (2 feet) per second in discharge line],
size pipe as follows:
A Pipe Size Of:
(
38 mm
1-1/2")
51 mm (2")
63.5 mm (2-1/2")
76 mm (3")
In a sewage system use a 51mm (2
discharge to prevent backflow of liquid into sump basin.
The check valve should be a free flow valve that will easily
pass solids. Be sure check valve installation complies with
local codes.
NOTICE: For best performance of check valve when han-
dling solids, do not install it with discharge more than 45°
above the horizontal. Do not install check valve in a vertical
position as solids may settle in valve and prevent opening
on startup.
Drill a 5mm (3/16
hole in discharge pipe about 25-51mm
")
(1-2
above pump discharge connection (but below check
")
valve) to prevent airlocking the pump.
Electrical
Hazardous voltage. Can shock, burn,
or cause death. When installing, operating, or servicing
this pump, follow safety instructions listed below.
1. DO NOT splice the electrical power cord.
2. DO NOT allow electrical cord plug to be submerged.
3. DO NOT use extension cords. They are a fire hazard and
can reduce voltage sufficiently to prevent pumping
and/or damage motor.
4. DO NOT handle or service pump while it is connected to
power supply.
5. DO NOT remove grounding prong from plug or modify
plug.To protect against electrical shock, the power cord
is a three-wire conductor and includes a 3-prong ground-
ed plug. Plug pump into a 3-wire, grounded, grounding-
type receptacle. Connect pump according to local codes.
A non-automatic pump will run continuously when connect-
ed to a power supply. An automatic pump will start and stop
dependent upon water level.
Connect or wire pump to its own circuit with no other out-
lets or equipment in the circuit. Size fuses or circuit break-
ers according to chart above, right.
diameter.
")
Will Handle a Flow Rate Of:
45 LPM (12 GPM)
79 LPM (21 GPM)
113 LPM (30 GPM)
181 LPM (48 GPM)
check valve in pump
")
Risk of electrical shock and fire. Be
sure that power supply information (Voltage/
Hertz/Phase) on pump motor nameplate matches
incoming power supply exactly. Install pump
according to all electrical codes that apply.
Fuse or Circuit
HP
Voltage
Breaker Amps
5PWS4CO7
4/10
220-240
5PWS4CO7A
4/10
220-240
Operation and Installation
NOTICE: Do not allow pump to run in a dry sump. It will
void the warranty and may damage the pump.
An automatic overload protector in the motor will protect
motor from burning out due to overheating/overloading.
When motor cools down, overload protector will automati-
cally reset and start motor.
If overload trips frequently, check for cause. It could be a
stuck impeller, wrong/low voltage, or electrical failure in
motor. If an electrical failure in the motor is suspected,
replace pump.
Pump is permanently lubricated. No oiling or greasing is
required.
SERVICE
General
Hazardous voltage. Can shock, burn,
or cause death. Before removing pump from basin for
service, always disconnect electrical power to pump and
control switch.
Risk of electrical shock. Can burn or
kill. Do not lift pump by power cord. See "Cord Lift
Warning" on Page 3.
Submerge complete pump in a disinfectant solution (chlorox
or chlorine) for at least one hour before disassembling
pump.
Impeller Replacement
1. Unplug cord from power source.
2. Remove screws from lower volute housing (Key #1) and
separate volute halves.
3. Hold shaft with screwdriver in slot in end of shaft;
unscrew impeller (Key #2) counter clockwise from shaft.
4. Thread new impeller onto shaft. Hold shaft with screw-
driver and tighten impeller firmly hand tight.
5. Remount lower volute housing (Key #1).
6. Plug in unit.
7. Pump is ready for operation. To avoid flooding, test
pump before operating by filling sump and running pump
through one complete cycle to be sure that switch works.
2
Dual Element Time
Delay Fuse Amps
15
10
15
10

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