Xylem GSSERVICE R2 Service Manual Submersible Pumps & Jet Pumps - Manual (Page 5)

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Install wire and ground according to
the National Electrical 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.
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 follow manufacturer’s
instructions.
Select the correct type and NEMA grade
junction box for the application and
location. The junction box must insure dry, safe wiring
connections.
All motors require a minimum
5' submergence for proper refill check
valve operation.
Failure to permanently ground the pump,
motor and controls before connecting to
power can cause shock, burns or death.
All three phase (3Ø) controls for sub-
mersible pumps must provide Class 10,
quick-trip, overload protection.
4" motors ≥ 2 HP require a minimum
flow rate of .25 ft/sec. or 7.62 cm/sec.
past the motor for proper motor cooling. The following are
the minimum flows in GPM per well diameter required for
cooling: 1.2 GPM/4", 7 GPM/5", 13 GPM/6", 20 GPM/7",
30 GPM/8" or 50 GPM in a 10" well.
Pumps ≥ 2 HP installed in large tanks
should be installed in a flow inducer
sleeve to create the needed cooling flow or velocity past the
motor.
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ARNINGS