MYERS SSM33 Serie Manual De Instalación Y Servicio página 5

NOTE: READ THESE INSTRUCTIONS
CAREFULLY BEFORE ATTEMPTING TO
INSTALL PUMP.
DESCRIPTION AND APPLICATION
SSM33, SSM33I and SRM4
Myers SSM33, SSM33I and SRM4 Series Pumps are single
seal units, available in automatic or manual. The SSM33 and
SSM33I series pumps are designed for normal sump and
dewatering, and can also be used in effluent applications.
When used in effluent dosing or S.T.E.P. applications,the
pump must be installed in a separate tank or compartment
at the discharge side of the septic tank. NEVER INSTALL
PUMP IN MAIN TANK WHERE SLUDGE COLLECTS. DO
NOT USE THE SSM33 OR SSM33I PUMP SERIES FOR
RAW SEWAGE. The SRM4 series pumps are designed for
residential sewage and dewatering applications where a
larger solid size is required.
General
The SSM33, SSM33I and SRM4 pumps use shaded pole,
1550 RPM motors. SSM33 and SSM33I are available in 115
volt only and the SRM4 is available in 115 or 230 volt and
all are single phase only. Both the manual and automatic
models come standard with a 10 ft. power cord. A 20 ft. cord
and switch length are optionally available. All automatic
models come with a mechanical (mercury free) piggy-
back float switch or a vertical float switch. The SSM33 and
SSM33I pumps are designed to handle 1/2" spherical solids
and have a 1-1/2" NPT discharge threading. The SRM4
pumps are designed to handle 2" spherical solids and have
a 2" NPT discharge threading. The SSM33, SSM33I and
the SRM4 use an engineered thermoplastic vortex impeller
designed to efficiently produce the required pressures and
flows.
WARNING! THESE PUMPS ARE NOT APPROVED FOR,
AND SHOULD NOT BE USED IN SWIMMING POOLS,
FOUNTAINS OR PUMPING POTABLE (DRINKING)
WATER.
AIR LOCKING
A pump is said to be air locked if water traps air in the
pump and it cannot get out, thus preventing the pump from
operating.
The SSM33, SSM33I and SRM4 sump pumps have a 1/16"
air vent hole in the impeller chamber to let out trapped
air. If this hole becomes plugged, pump may air lock. As a
secondary precaution a 1/8" hole should be drilled in the
discharge pipe below the check valve. The check valve
should be 12 to 18 inches above pump discharge. Do not put
check valve directly into pump discharge opening.
PACKAGING
Each pump is packaged separately in a carton marked with a
catalog number and Myers engineering number. The pumps
are carefully packaged to prevent damage in shipping.
However, occasionally damage may result due to rough
handling. Carefully go over the pump and check for damage
that could cause the pump to fail.
LEVEL CONTROLS
The automatic models come with 10' or 20' power cord and
mechanical (mercury free), piggy-back float switch. The 115
or 230 volt piggy-back switch is tethered directly to the pump.
The switch can optionally be mounted to the discharge pipe
using a minimum 3-5/8" tether length. The switch must float
free from pump and basin wall. Plug the switch cord plug
into a properly grounded, rated voltage receptacle. Plug the
power cord into the back of the switch cord and tape the
cords to the discharge pipe every 12". The power receptacle
must be located outside the wet sump or basin due to the
DANGER of current leakage.
On all duplex units or simplex installations with additional
options like high water alarm, the power cord plug must be
cut off and wired into a control panel or into a sealed junction
box if used in wet sump or basin. The AWS-1 control also
acts as a sealed junction box for connecting power cord to
pump cord.
DESIGN OF PRESSURE SEWER SYSTEMS
Myers has available complete computer SOFTWARE for
designing PRESSURE SEWER SYSTEMS. This gives pipe
sizes to use and gives exact flow from any pump or group of
pumps in the system when operating simultaneously.
This design DISK for IBM
available to engineers on request.
MOTOR TYPE
The motors used in these pumps are pressed into the cast
iron housings and surrounded by dielectric oil for superior
heat transfer. Both models use a shaded pole, 1550 RPM
motor. The SSM33 and SSM33I are rated at 1/3 HP and
the SRM4 is rated at 4/10 HP. All units have class A motor
insulation. SSM33 and SSM33I are available in 115 volt,
single phase only and SRM4 is available in 115 or 230
volt, single phase. All have overload protection, and use a
double sleeve bearing design. These pumps have no starting
switches and do not require a control panel for simplex
installation.
SAFETY WARNINGS
WARNING: Risk of electric shock. Pumps 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.
All pumps have a GROUND WIRE that is connected to the
motor. This wire goes to the receptacle or control panel
which must be connected to a good outside GROUND.
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).
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or COMPATIBLE computers is