3
HYDROMATIC
electrical
equipment is installed in a
weatherproof enclosure. The
electrical equipment includes a
main circuit breaker for each
pump, a magnetic starter with
overload protection for each
pump, a H-O-A switch and run
light for each pump, an electric
alternator and a transformer to
provide appropriate control for
control circuit and alarms.
Overload Heaters:
If a HYDROMATIC
control
panel is not used, on three phase
pumps all three phases must have
over load protection. The
overload should be ambient
compensated class 10. The
heaters full load amps on the
pump be sized in accordance with
the nameplate amps on the motor
housing. The amp draw on these
submersible motors is slightly
higher than a corresponding
horsepower surface motor so
heaters must be sized by the
nameplate full load amp rating.
Single phase pumps with
capacitor start Circuit must have
the overload protection on the
black pump lead.
NOTE: On single phase pumps
the white, black, and red pump
leads must be connected
properly for the pump to run.
Installing:
Before installing pump in sump,
lay it on side and turn impeller
with fingers. Impeller may be
slightly stuck due to factory test
water so it must be broken loose
with small bar or screw driver in
edge of vanes. The impeller
should turn freely.
Clean all trash and sticks from
sump and connect pump to piping.
A check valve must be installed
on each pump. A gate or plug
valve in each pump discharge line
is also recommended. This valve
should be installed on the
discharge side of the check valve
so if necessary to service the
check valve, the line pressure can
be cut off. Single pump systems
are sometimes installed without a
check valve where it is desirable
to self-drain the discharge line to
prevent freezing. This can be done
only with short discharge lines.
Otherwise water will return to the
sump and cause short cycling of
the pump.
Nema 4 Junction Box (Optional):
If electrical control panel is to be
set remote from the pump sump, a
NEMA 4 junction box should be
used to make power and control
connections. The HYDROMATIC
NEMA 4 junction box is provided
with compression connectors for
sealing all wires. No sealing
compound is needed to make
connections waterproof.
Wiring diagrams are provided
with panel for making
connections. An extra set of
diagrams are included so that one
set can be used during installation
when making connections. The
size of any additional wiring from
the pump cord to the panel is
based on the distance and pump
Pump
Installation
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