Pentair MYERS MS33PT10 Notice D'utilisation page 4

Operation
NOTICE If your check valve is not equipped with an
air bleed hole to prevent airlocking pump, drill a 1/8"
(3.2 mm) hole in discharge pipe just above where the
discharge pipe screws into the pump discharge. Be sure
the hole is below the waterline and the check valve to
prevent air locks.
7. Power Supply: Pump is designed for 115 V., 60 Hz.,
operation and requires a minimum 15 amp individual
branch circuit. Both pump and switch are supplied
with 3-wire cord sets with grounding-type plugs.
Switch plug is inserted directly into outlet and pump
plug inserts into opposite end of switch plug.
Risk of electric shock. Can shock, burn or
kill. Pump should always be electrically grounded to a
suitable electrical ground such as a grounded water pipe
or a properly grounded metallic raceway, or ground wire
system. Do not cut off round ground pin.
8. If pump discharge line is exposed to sub-freezing
weather conditions, portion of exposed pipe must
be installed so any water remaining will drain out or
down due to gravity. Failure to do this can cause water
trapped in discharge to freeze which could result in
damage to pump.
9. After piping, check valve and float switch have been
installed, the unit is ready for operation.
10. Check the pump operation by filling sump with water
and observing pump operation through one complete
cycle. For switch settings see the Electrical and Switch
Specifications chart on Page 2.
Risk of flooding. Can cause personal injury
and/or property damage. Failure to make this operational
check may lead to improper operation, premature failure,
and flooding.
Check valve
Air lock hole
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