Hydromatic DRY PIT Скачать руководство пользователя страница 6

NOTE:    The  cooling  fins  must
be  intact  to  ensure  the  pump
operates  within  the  factory
specified temperature.

Water Jacket (Optional):

When  additional  cooling  is
necessary,  a  water  jacket  is
supplied  from  the  factory.  All
necessary  plumbing  of  the  water
jacket is supplied from the factory
connecting to the suction and the
discharge  piping.  The  plumbing
includes  ball  valves  allowing  for
removal  of  the  water  jacket  for
periodic cleaning without shutting
the system down.

The  water  jacket  is  held  in  place
by  clamps  and  is  sealed  both  top
and  bottom  by  O-rings.  Upon
removal  of  the  water  jacket  for
cleaning, care should be taken not
to damage the O-rings and replace
if necessary.

NOTE:    Clean  fresh  water
supplied to the water jacket will
reduce the necessity of frequent
periodic  cleaning  of  the  water
jacket.    This  does  not  preclude
that the water jacket should not
periodically be cleaned.

Starting System:

1.  Turn  H-O-A  switch  to  Off

position and then turn on main
circuit breakers.

2.  Open  all  discharge  valves  and

allow water to rise in wet well.

3.  Turn  H-O-A  switch  to  Hand

position  on  one  pump  and
notice  operation.  If  pump  is
noisy  and  vibrates,  rotation  is
wrong.  To  change  rotation,
interchange any two line leads

6

to  a  three  phase  motor  only.
DO  NOT  INTERCHANGE
MAIN INCOMING LINES. If
duplex  system,  check  second
pump in the same manner.

4.  Now set H-O-A switch to Auto

position  and  allow  water  to
rise  in  the  wet  well  until  the
pump  starts.  Allow  pump  to
operate  until  the  level  drops
to turn-off point.

5.  Allow wet well level to rise to

start  the  other  pump.  Notice
run lights on the panel. Pumps
should  alternate  on  each
successive cycle of operation.

6.  Turn  both  H-O-A  switches  to

Off  position  and  allow  wet
well  to  fill  to  the  override
control level.

7.  Turn  both  switches  to  Auto

position  and  both  pumps
should  start  and  operate
together  until  level  drops  to
turn-off point.

8.  Repeat  this  operation  cycle

several  times  before  leaving
job site.

9.  Check  voltage  when  pumps

are  operating  and  check  amp
draw  of  each  pump.  Check
amps  on  each  wire,  as
sometimes  a  high  leg  will
exist.  One  leg  can  be
somewhat  higher  (5  to  10%)
without  causing  trouble.  For
excessive  amp  draw  on  one
leg,  the  power  company
should be consulted.

Phase Converters:

Phase converters are generally not
recommended, but in cases where
only  single  phase  current  is
available, phase converters can be
used.    Be  sure  to  size  the  phase
converter  large  enough  for  the
amp draw specified on the motor
nameplate,  not  necessarily  by
motor  horsepower.  The  warranty
of  all  three  phase  submersible

motors  is  void  if  operated  with
single  phase  power  through  a
phase converter and 3 leg ambient
compensated  extra-quick  trip
overload protectors are not used.

Lubrication  or  other  maintenance
is not required, as the motors are
oil filled.
If  a  seal  failure  unit  is  used,  no
attention  is  necessary  as  long  as
the  seal  shows  satisfactory
operation.
If  seal  failure  is  not  used,  the
pump should have the oil drained
from the seal chamber once every
two years and inspected for water.
Generally, these pumps give very
reliable  service,  and  can  be
expected  to  operate  for  many
years  without  failure  under
normal operating conditions.

Lightning:

In some areas where considerable
lightning  occurs,  we  recommend
that  a  lightning  arrestor  be
installed  at  the  control  panel.
Lightning  arrestors  are  good
insurance  against  damage  to  an
expensive motor.

Servicing Instructions:

IMPORTANT:    Read  all
instructions  prior  to  replacing
any parts.

WARNING:    Before  handling
these  pumps  and  controls,
always  isolate  and  disconnect
power first.
Do  not  smoke  or  use  any
sparkable  electrical  devices  or

Pump
Operation

Pump
Maintenance

Содержание DRY PIT

Страница 1: ...NOTE To the installer Please make sure you provide this manual to the owner of the equipment or to the responsible party who maintains the system Installation and Service Manual Wastewater Lift Statio...

Страница 2: ...rature The sensors are connected in series with the motor starter coil so that the starter is tripped if heat sensor opens The motor starter is equipped with overload heaters so all normal overloads a...

Страница 3: ...ng Pump Stand The pump will ship from the factory on a dry pit pump stand The suction and discharge of the pump will be oriented at the factory per the prescribed customer order The dry pit pump must...

Страница 4: ...p to assist in troubleshooting potential performance problems NEMA 4 Junction Box Optional A NEMA 4 junction box should be used to make power and control connections if electrical control panel is to...

Страница 5: ...ace Control level can be changed at any time by loosening the snubber and readjusting cord length In either a simplex or duplex system the lower or turn off control is set just above the drywell inlet...

Страница 6: ...the override control level 7 Turn both switches to Auto position and both pumps should start and operate together until level drops to turn off point 8 Repeat this operation cycle several times befor...

Страница 7: ...lted in clamp ring 7 After ring is removed turn housing upright and bump on hardwood blocks This should jar the stator loose and allow it to drop out 8 Thoroughly clean housing before replacing new st...

Страница 8: ...n inner face of the bearing when replacing Pressing on the outer face can damage the bearing Bearings are standard size that can be obtained from any bearing supply house or can be obtained from the f...

Страница 9: ...mp is operating 5 If pump has been in service for some time and capacity falls off remove pump and inspect impeller for wear Motor stops and then restarts after short period but overload heaters in st...

Страница 10: ...dance with the printed instructions provided b to failures resulting from abuse accident or negligence c to normal maintenance services and parts used in connection with such service d to units which...

Страница 11: ......

Страница 12: ...Line Voltage _________________________________Actual ___________________________________ Voltage to Pumps _____________________________________Actual ___________________________________ Type of Junct...

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