Lifting Of Pump; Optional Guide Rail Or Lift-Out System; Piping; Wiring And Grounding - Xylem Bell & Gossett WEHT0311M Installation, Operation And Maintenance Instructions

High temp sump pump
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The oil should be within ½" (13mm) of the top. If low, refill
with an ASTM 150 turbine oil. Replace the plug.
Oil is available in 5 gallon cans through our distributors. You
can also source oil locally at motor repair shops. Typical oil
brands are: Shell Turbo 32, Sunoco Sunvis 932, Texaco Regal
R&O 32, Exxon Nuto 32 and Mobil DTE Light.
Check the strain relief nut on power cable strain assemblies.
Power cables should be torqued to 75 in. lbs., cable supplied
is for high temp use.
Warranty does not cover damage caused by connecting
pumps and controls to an incorrect power source (voltage/
phase supply).
Record the model numbers and serial numbers from the
pumps and control panel on the front of this instruction
manual for future reference. Give it to the owner or affix it to
the control panel when finished with the installation.
FOR ALL SES PUMP INSTALLATIONS

LIFTING OF PUMP

DO NOT LIFT, CARRY OR HANG
WARNING
PUMP BY THE ELECTRICAL
DAMAGE TO THE
CABLES CAN CAUSE SHOCK, BURNS
OR DEATH.
Hazardous voltage
can shock, burn or
cause death.
Lift the pump with an adequately sized chain or cable at-
tached to the lifting eye bolt. DO NOT damage electrical
cables while raising and lowering unit.
OPTIONAL GUIDE RAIL
OR LIFT-OUT SYSTEM
In many effluent and sewage basins or lift stations it is advis-
able to install the pump on a guide rail system or on a lift-out
adapter to facilitate installation and removal for inspection
and/or service. Most codes do not allow personnel to enter a
wetwell without the correct protective equipment and train-
ing. Guide rails are designed to allow easy removal of the
pump without the need for entry into the wetwell or need
to disturb piping. The guide rail or lift-out adapter should
locate the pump opposite the influent opening preventing
stagnate areas where solids can settle. The basin or pit must
be capable of supporting the weight of the pump and guide
rail. The pit floor must be flat.
NOTICE: FOLLOW THE INSTRUCTIONS THAT ARE
PROVIDED WITH THE GUIDE RAIL ASSEMBLY.

PIPING

Discharge piping should be no smaller than the pump
discharge diameter and kept as short as possible, avoiding
unnecessary fittings to minimize friction losses. Piping should
be rated for high temperatures if used in high temperature
applications.
Install an adequately sized check valve matched to the solids
handling capability of the pump to prevent fluid backflow.
Backflow can allow the pump to "turbine" backwards and
may cause premature seal and/or bearing wear. If the pump
is turning backwards when it is called on to start the in-
creased torque may cause damage to the pump motor and/
or motor shaft and some single-phase pumps may actually
run backwards.
4
Install an adequately sized gate valve AFTER the check valve
for pump, plumbing and check valve maintenance.
Important – Before pump installation. Drill a
relief hole in the discharge pipe. It should be located within
the wetwell, 2" (51mm) above the pump discharge but be-
low the check valve. The relief hole allows any air to escape
from the casing. Allowing liquid into the casing will insure
that the pump can start when the liquid level rises. Unless a
relief hole is provided, a bottom intake pump could "air lock"
and will not pump water even though the impeller turns.
All piping must be adequately supported, so as not to impart
any piping strain or loads on the pump.
The pit access cover must be of sufficient size to allow for
inspection, maintenance and crane or hoist service.

WIRING AND GROUNDING

Important notice: Read Safety Instructions before
proceeding with any wiring.
CABLES.
ELECTRICAL
WARNING
Hazardous
voltage
SELECTING AND WIRING
PUMP CONTROL PANELS AND SWITCHES
FLOAT SWITCH TYPES
High Temp floats can be purchased for High Temp applica-
tions. They are normally open (NO) for pump down opera-
tions.
These wide-angle, pump down switches may be used as
direct connected pump switches or as control switches.
Use only stranded copper wire to pump/motor and
ground. The ground wire must be at least as large as
the power supply wires. Wires should be color coded
for ease of maintenance and troubleshooting.
Install wire and ground according to the National Elec-
trical Code (NEC), or the Canadian Electrical Code, as
well as all local, state and provincial codes.
Install an all leg disconnect switch where required by
code.
Disconnect and lockout electrical power before per-
forming any service or installation.
The electrical supply voltage and phase must match
all equipment requirements. Incorrect voltage or
phase can cause fire, motor and control damage, and
voids the warranty.
All splices must be waterproof. If using splice kits fol-
low manufacturer's instructions.
Select the correct type and NEMA grade
WARNING
junction box for the application and loca-
tion. The junction box must insure dry, safe
wiring connections.
Seal all controls from gases present which
WARNING
may damage electrical components.
FAILURE TO PERMANENTLY
THE PUMP, MOTOR AND CONTROLS
BEFORE CONNECTING
CAN CAUSE SHOCK, BURNS OR DEATH.
" (4.8mm)
3
1 6
GROUND
TO POWER

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Bell & gossett weht0312mBell & gossett weht0318m

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