
2
General Information
Attention:
This manual contains important
information for the safe use of this
product. Read completely and do not
throw away.
Reasonable care and safe methods
should be practiced. Check local codes
and requirements before installation.
Unpacking Pump:
When unpacking unit, check for damage.
Claims for damage must be made at
the receiving end through the delivery
carrier. Damage cannot be processed
from the factory.
WARNING: Before handling these
pumps and controls, always
disconnect the power first. Do not
smoke or use sparkable electrical
devices or flames in a septic
(gaseous) or possible septic sump.
CALIFORNIA PROPOSITION 65 WARNING:
This product and
related accessories contain
chemicals known to the State of
California to cause cancer, birth
defects or other reproductiveharm.
Pumps in Storage or Not Operating:
Pumps with silicon/carbide seals
must have impellers manually rotated
(6 revolutions) after setting non-
operational for 3 months or longer and
prior to electrical start-up.
Pumps with tungsten carbide seals
must have impellers manually rotated
(6 revolutions) after setting non-
operational for 3 weeks or longer and
prior to electrical start-up.
Seal Failure Probes:
All hazardous location submersible
pumps have two factory installed
moisture detectors (seal failure
probes). They are in a normally open
series circuit in the seal chamber.
Under normal operating conditions,
the circuit remains open. If the lower
seal leaks and moisture enters this
chamber, the moisture would settle to
the bottom of the chamber and will
complete the circuit between the
moisture detectors.
This circuit must be connected to a
sensing unit and signaling device. This
is supplied in a Hydromatic®built control
panel.
NOTE: Failure to install such a device
negates all warranties by Hydromatic.
Heat Sensors:
All motors in this family have heat
sensors on or embedded in the motor
winding to detect excessive heat.
This prevents damage to the motor.
If sensor trips due to excessive
winding temperature, the starter in
the panel breaks power to the pump.
Once the sensor resets, the starter is
automatically reset for FM for continued
operation of the pump. This circuitry is
supplied in a Hydromatic control panel.
The sensors are set to trip at 130°C.
NOTE: Failure to install such circuitry
would negate FM approvals and all
warranties by Hydromatic.
Power Cords:
The power cord and heat sensor seal
failure cord are potted into the cord
cap. The cords must not be spliced.
NOTE: Each cable has a green lead.
This is the ground wire and must
be grounded properly per NEC and/
or local codes. Cords should be
inspected for abnormal wear and
replaced accordingly.
Overload Heaters:
If the Hydromatic electrical panel is not
used, starters with 3 leg overload relay
must be supplied on 3 phase pumps.
Each leg is to have an identical heater
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 rating.
Capacitor start single phase pumps
have a run and start winding that draws
different currents. To adequately
protect these windings with the
appropriate heaters, consult the
factory.
NOTE: The red lead is always the
start winding of a pump using single
phase.
Pump Installation
Installing Sump Level Controls Float
Controls:
In either simplex, duplex or triplex
systems the lower or turn-off control
is to be set to maintain a minimum level
in the sump. This level shall be no more
than 3-1/4" from the top of the motor
housing down to the surface of the
sewage.
The second or turn-on control is set
above the lower turn-off control. The
exact distance between the two floats
must be a compromise between a
frequent pumping cycle (10 starts per
hour max.) to control septicity, solids
and a slower cycle for energy economy.
This distance should be determined by
the engineer or consulting engineer,
depending on the conditions of
the application.
Installing Pump in Sump:
Before installing the pump in the
sump, lay it on its side and rotate
impeller. Impeller may be slightly
stuck due to factory test water.
The impeller should turn freely.
Do not connect the power until
after this test.
Clean all debris 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 is
highly 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.
Making Electrical Connections:
All electrical wiring must be in
accordance with local codes, and only
competent electricians should make
the installations. Complete wiring
diagrams are glued to the inside
cover of the panel. All wires should be
checked for grounds with an ohmmeter
or Megger® after the connections are
made.