3
n WARNING
On three phase pumps only “motor
protection” must be provided
by the installer. All three phase
pumps must be installed with
magnetic starters having three leg
overload protection in accordance
with the national electric code.
For installations with more than
one pump, each pump motor must
have separate overload protection.
n WARNING
Only qualified persons
shall conduct services and
installations of this pump.
The pump must be wired by a
qualified electrician, using an
approved starter box.
NOTICE: For use with maximum
104°F liquid. Acceptable for
indoor use only.
n WARNING
DO NOT exceed working load
limit of lifting rope or chain.
DO NOT use lifting rope or
chain where failure could result
in injury or loss of life. Examine
all lifting devices, rope or chain
for damage before and after
each lift.
n CAUTION
DO NOT exceed manufacturer’s
recommendation for maximum
performance, as this could cause
the motor to overheat.
n CAUTION
Secure the pump in its operating
position so it cannot tip over, fall
or slide.
n CAUTION
Keep hands and feet away from
impeller when power is connected.
For hazardous locations, use
pumps that are listed and classified
for such locations.
IMPORTANT: Hydromatic is
not responsible for losses, injury
or death resulting from failure to
observe these safety precautions,
misuse or abuse of pumps or
equipment.
Pump
Information
Pump Models:
These instructions cover the
installation and service of the
Hydromatic SPX50 and SPX50H
series submersible sump pumps.
Motor HP & Voltages:
The SPX50/SPX50H sump
pumps are offered in single and
three phase. Voltages will vary
according to power supplied.
Control Panels:
NOTE: Hydromatic built
control panels supply the correct
circuitry for moisture and heat
sensor connections. Failure to
install the correct circuitry with
proper connection would negate
warranty and CSA certification.
General Hazardous
Construction:
These pumps are to be used for
handling contaminated septic tank
effluent, sewage, and storm water
only. The SPX50/SPX50H motor
construction is designed to meet
CSA requirements for Group
1, Div. 1, Class D wastewater
applications. These models are
certified and nameplated with this
approval. Do not use in other
hazardous location environments
pumps are not rated for. A cross-
sectional view of the internal
workings of the pumps can be
seen on pages 12 & 13. The
motor chamber and seal chamber
are filled with a high dielectric
type oil for improved lubrication
and heat transfer of the bearings
and motor. The oil should not
require replacement under normal
operating conditions. An air space
above the oil level in both the seal
and motor chambers is provided to
allow for the expansion of the oil
when at operating temperature.
Internal connection wiring
diagrams are shown on page 6.
General Installation:
Various configurations and
methods of plumbing this series of
sump pumps may be used.
NOTE: If the SPX50 and
SPX50H hazardous location
pumps are used in conjunction
with a rail lift-out system, it
must be a UL or CSA approved
nonsparking, hazardous location
system.
Hydromatic recommends using
the rail lift-out system so that
no service is required inside the
basin.
IMPORTANT: If the following
guidelines are not followed,
the CSA hazardous location
approval is void.
Motor:
Each motor is provided with
heat sensor thermostats attached
directly to the motor windings.
The thermostats open if the motor
windings experience excessive
heat and, consequently, open the
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