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SAFETY WARNINGS
WARNING: Risk of electric shock. Pumps with a
single seal are supplied with a grounding conductor and
grounding-type attachment plug on the power cord.
To reduce the risk of electric shock, be certain that it is
connected only to a properly grounded, grounding-type
receptacle. DO NOT cut off ground pin or use an adapter
fitting. DO NOT use an extension cord with this pump.
Entire plug may be cut off if a control panel is used. All
double seal pumps, all duplex installations and all three
phase pumps require a control box.
When wiring this pump follow all local electrical and
safety codes and ordinances as well as the most recent
National Electric Code (NEC-ANSI/NFPA 70).
All pumps have a GROUND WIRE that is connected to
a screw in the metal motor housing. This wire goes to the
receptacle or control box which must be connected to
a good outside GROUND such as a metal water pipe or
GROUND STAKE driven at least 8 feet into the ground.
When overload current protection is provided by installer:
USE WITH APPROVED MOTOR CONTROL THAT
MATCHES MOTOR INPUT IN FULL LOAD AMPERES
WITH OVERLOAD ELEMENT(S) SELECTED OR
ADJUSTED IN ACCORDANCE WITH CONTROL
INSTRUCTIONS. (UTILISER UNDEMARREUR APPROUVE
CONVENANT AU COURANT A PLEINE CHARGE DU
MOTEUR ET DONT LES ELEMENTS THERMIQUES
SONT REGLES OU CHOISIS CONFORMEMENT AUX
INSTRUCTIONS QUI L'ACCOMPAGNENT).
When motor has built-in overload protection:
USE WITH APPROVED MOTOR CONTROL THAT
MATCHES MOTOR INPUT IN FULL LOAD AMPERES.
(UTILISER UN DEMARREUR APPROUVE CONVENANT
AU COURANT A PLEINE CHARGE DU MOTEUR).
INSTALLATION
WARNING: Basin or tank must be vented in accordance
with local plumbing codes. These pumps are not
designed for and CANNOT be installed in locations
classified as hazardous in accordance with the National
Electric Code ANSI/NFPA 70.
CAUTION: Never enter pump chamber after sewage
or effluent has been in basin. Sewage water can give off
methane, hydrogen sulfide and other gases which are
highly poisonous.
For this reason, Myers recommends installing the ME
series effluent pumps with a quick removal system.
The quick removal system may be a union or Cam-lok
coupling if the pipe or discharge hose is within reach
from the surface, or a rail system type quick disconnect
on deeper installations. See installation drawings for
suggested installation.
The dosing tank or pumping chamber must be
constructed of corrosion resistant materials and must
be capable of withstanding all anticipated internal
and external loads. It also must not allow infiltration
or exfiltration. The tank must have provisions for anti-
buoyancy. Access holes or covers must be of adequate
size and be accessible from the surface to allow for
installation and maintenance of the system. Access
covers must be lockable or heavy enough to prevent
easy access by unauthorized personnel. The pumping
chamber holding capacity should be selected to allow
for emergency conditions.
The discharge pipe must be the same size as the
pump discharge (2 inches) or larger. In order to insure
sufficient fluid velocity to prevent any residual solids
from collecting in the discharge pipe, it is recommended
that a minimum flow of 2 feet per second be maintained.
(21 GPM through 2" pipe and 46 GPM through 3" pipe).
It is recommended that PVC or equal pipe is used for
corrosion resistance. A full flow (ball or gate) shut off
valve must be installed to prevent back flow of effluent
if the pump must be removed for service. A check
valve must be installed on pressure sewer systems and
on other systems where conditions allow to prevent
backflow and to reduce wear on the pump system.
A high water alarm must be installed on a separate
circuit from the pump circuit. The alarm should have the
ability to be tested for proper operation.
SPECIAL INSTRUCTIONS FOR
THREE PHASE PUMPS
(1) F.E. Myers recommends three phase pumps to be
installed by qualified personnel. CAUTION: Risk of
electric shock. Do not remove cord and strain
relief. Do not connect conduit to pump.
(2) Three phase pumps are always installed with control
boxes having magnetic starters with 3 leg overload
protection. DO NOT TRY TO RUN THREE PHASE
PUMPS DIRECTLY ACROSS THE LINE.
(3) To Connect Pump: Run wire from pump to the bottom
of control box or appropriate junction box suitable
for enclosing splice connections. A hole must be cut
into the control box for the wires. With power to
control box off, connect green (ground) line to ground
lug. Connect black (power) wires to power lead
terminals.Note: for a typical CE style control box,
these terminals are marked M1, M2 and M3. Make
sure that all wires are inside control box and not in
a position to be pinched or shorted when the door
is closed.
(4) All three phase motors can run either direction.
ROTATION can be changed by interchanging any two
line leads at magnetic starter. BE SURE CIRCUIT
BREAKER IS OFF BEFORE MAKING THIS CHANGE.
7
23833A278
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