Pentair Starting Pump S33A Automatic, Using the S33M Sump Pump for Manual Operation

STARTING PUMP - S33A (AUTOMATIC)

1.These pumps have an integral mechanical (mercury-free) ball float switch as shown on installation drawing. “Vertical switch” models have a vertical actuated cylinder float.

2.Plug cord into a 115 volt GROUNDED RECEPTACLE.

3.Run water into sump until pump starts.

4.Allow pump to operate through several on-off cycles to be sure operation is satisfactory.

5.If shut-off valve is used in discharge line, be sure valve is open.

6.If pump does not operate properly, see trouble service chart for remedy. NOTE: TETHER LENGTH OF SWITCH CORD ON BALL FLOAT MUST BE MINIMUM OF 3-5/8" AS NOTED IN INSTALLATION STEP 1, PAGE 4.

USING THE S33M SUMP PUMP FOR MANUAL OPERATION

The pump cord for these units can be plugged directly into proper GROUNDED RECEPTACLE for continuous pump operation.

CAUTION: THIS TYPE OF OPERATION SHOULD BE USED ONLY FOR EMERGENCY USE OR WHERE A LARGE VOLUME OF WATER IS TO BE PUMPED, SUCH AS FLOODED BASEMENT.

PUMP MUST NOT BE RUN CONTINUOUSLY OUT OF WATER. NOTE: RUNNING PUMP CONTINUOUSLY WILL VOID WARRANTY.

DO NOT USE WITH EXTENSION CORD.

AUTOMATIC/MANUAL MODEL

The Model S33 sump pump can be changed from one style, Automatic or Manual, to the other by interchanging only the plug ends of the float control with the manual plug. The ball floats must be tethered with a cable clamp, as shown. DO NOT REMOVE THE MOTOR CAP.

HOW MECHANICAL SWITCH FLOAT OPERATES

This level control uses a mechanical switch sealed in a polypropylene float cylinder. The switch is not position sensitive; that is, it will operate regardless of position.

When level rises in the sump, the cylinder floats up with the level. When the cylinder position is at an angle of about 45º, the steel ball rolls over a detent and actuates the switch. This starts the pump motor.

As the sump level draws down, the cylinder floats down and when it is again at an angle of about 45º, the steel ball drops away, deactivating the switch and the motor stops.

BE SURE CYLINDER FLOATS FREELY IN SUMP BASIN WITHOUT TOUCHING THE BASIN WALLS. ADJUST PUMP POSITION IN SUMP IF NECESSARY.

PUMP MOTOR

NEVER REMOVE MOTOR HOUSING OR UNSCREW PUMP IMPELLER. Warranty on pump is void if motor housing, impeller or seal have been removed. Any repair on motor must be done by an authorized Myers service center.

MAINTENANCE AND SERVICE

If pump does not operate properly, follow steps shown on servicing chart. If trouble cannot be located with these steps shown, call Myers service dealer, or take pump to Myers authorized service center.

CAUTION: FOR ANY WORK ON PUMP OR SWITCH, ALWAYS UNPLUG POWER CORD.

CLEANING FLOAT

If pump becomes inoperative because of accumulation of trash on the float, remove from sump and clean float.

1.Wipe all water and dirt from pump and float and also the vertical rod on vertical models.

2.Be sure float operates freely after cleaning.

CLEANING IMPELLER AND VOLUTE CASE

1.Remove (3) screws that hold bottom plate to volute case.

2.Remove (4) screws that hold volute case to metal motor housing.

3.Use screwdriver to pry plastic case from metal housing. Use care not to gouge groove in the plastic. Pry in several spots to loosen.

4.Remove volute case and clean impeller and volute passage.

5.Be sure impeller turns freely after cleaning.

6.Clean out holes in plastic pump base and wash thoroughly before replacing.

7.DO NOT UNSCREW IMPELLER.

23833A587 P. 5 Bag #18812A108