This manual contains important
information for the safe use of
this product. Read this manual
completely before using this
product and refer to it often
for con tin ued safe product use.
DO NOT THROW AWAY OR
LOSE THIS MAN U AL. Keep
it in a safe place so that you
may refer to it often. Reasonable
care and safe meth ods should be
practiced. Check local codes and
requirements before installation.
Unpacking Pump:
Remove pump from carton.
When un pack ing unit, check for
con cealed damage. Claims for
damage must be made at the
receiving end through the delivery
carrier. Dam age cannot be
processed from the factory.
WARNING: Before handling
these pumps and controls,
always disconnect the power
first. Do not smoke or use
sparkable electrical devices or
flames in a septic (gaseous) or
possible septic sump.
CALIFORNIA PROPOSITION
65 WARNING:
This product
and related accessories contain
chemicals known to the State of
California to cause cancer, birth
defects or other reproductive harm.
Pumps with tungsten carbide seals
must have impellers manually
rotated (6 revolutions) after
setting non-operational for 3
weeks or longer and prior to
electrical start-up.
Seal Failure:
An electrode is installed in the
seal chamber so if any water
enters the chamber through
the first seal the electrode will
be energized and a signal will
be trans mit ted to the sen sing
unit at ground surface causing
a red light to turn on. The
elec trode probe is installed in
all units, but the sensing unit
is sup plied at extra cost and
must be ordered.
In operation the seal failure
unit in di cates only that there is
some water in the seal chamber.
The pump will con tin ue to
operate, but the seal should be
checked immedi ate ly after failure
is indicated.
The sensing unit is recommended
on all installations as good
insurance against motor failure.
Pump:
The submersible pumps in this
manual are supplied for 1 and 3
phase and for 200, 230, 460 or
575 volts. Power cable is supplied
with the green wire for ground. Be
sure green wire is connected to a
good ground such as water pipe or
ground stake.
Heat Sensors:
sensor opens. The motor starter is
equipped with overload heaters so
all normal over loads are protected
by the starter.
IMPORTANT: If Hydromatic®
electrical starting equip ment is
not supplied, the heat sensor
circuit must be connected in
series with the starter coil or
warranty is void.
Sump Level Control:
Sump level is controlled by
Hydromatic switch controls.
The float is held in position in
the sump by a weight attached
to the power cord above
the float. The cord supports the
float and is adjusted for height
from the surface.
Duplex systems use three
controls: one set at turn-off, one
set at turn-on for one pump, and
one set for turn-on for two pumps.
Pumps alternate op er a tion on each
successive cycle.
Two pumps operate together only
if sump level rises to the third
or over ride control. The override
control also brings on the second
pump in case of failure of the
first pump. Extra floats with
ap pro pri ate controls can be
supplied for alarm functions.
Triplex systems use four controls:
one set at turn-off, one set at
turn-on for one pump, one set
at turn-on for two pumps, and
one set at turn-on for three
pumps. Pumps alternate each
successive cycle.
Pumps Not Operating or in
Storage:
Pumps with carbon ceramic seals
must have impellers manually
rotated (6 revolutions) after
setting non-operational for
3 months or longer and prior to
electrical start-up.
2
All motors have heat sensor units
em bed ded in the motor winding
to detect ex ces sive heat. The
heat sen sors are set to trip at
130°C on the H3H. The sensors
au to matcally reset when motor
cools to safe tem per a ture.
The sensors are connected in
series with the motor starter coil
so that the starter is tripped if heat
Three pumps operate together
only if sump level rises to the
fourth control (second override).
This control also brings on the
third pump in case of failure
of either or both of the first
two pumps.
Page 3
Alarm Controls:
The alarm level is usually set
above the override level so the
alarm will signal only if the
override level is exceeded.
However, some engineers prefer
to have the alarm level set below
the override level as it is pos si ble
for one pump to fail and the other
pump to operate on the override
level with the sump level never
reach ing the alarm level. This is
par tic u lar ly true in cases of low
inflow capacity.
Electrical Control Panel:
It is recommended that the
Hydromatic
®
control panel be
used with all pumps as proper
starter heat ers and connections for
heat sensor wires are fur nished.
Hydromatic electrical equipment
is installed in a weatherproof
NEMA 3R enclosure. The
electrical equip ment includes
a main circuit breaker for
each pump, a magnetic starter
with overload protection for each
pump, an H-O-A switch and run
light for each pump, and an electric
alternator and a transformer to
provide appropriate control for
control circuit and alarms.
Overload Heater:
Starters with 3 leg overload
protection must be supplied if
the Hydromatic electrical panel
is not used. The heaters must
be sized in accordance with the
nameplate amps on the motor. The
amp draw on these submersible
motors is slightly higher than
a corresponding horsepower
surface motor, so heaters must be
sized by the nameplate rating.
IMPORTANT: Make certain
the heat sensor wires are
connected in series with the
starter coil circuit if other than
Hydromatic starters are used.
Installation
Instructions
Installing Pump in Sump:
Before installing pump in sump,
lay it on side and turn impeller
manually. Im pel ler may be
slightly stuck due to factory test
water, so it must be bro ken loose
with small bar or screwdriver
in edge of vanes. The impeller
should turn freely.
Clean all trash and sticks from
sump and connect pump to piping.
A check valve must be installed
on each pump. A gate or plug
valve in each pump discharge
line is also recommended. This
valve should be installed on the
discharge side of the check valve
so the line pressure can be cut
off if necessary to service the
check valve. Single pump systems
are sometimes installed without a
check valve where it is desirable
to self-drain the dis charge line to
prevent freezing. This can be done
only with short discharge lines.
Otherwise water will return to the
sump and cause short cycling of
the pump.
NEMA 4 Junction Box
(Optional):
A NEMA 4 junction box should
be used to make power and
control con nec tions if electrical
control panel is to be set remote
from the pump sump. The
Hydromatic NEMA 4 junction
box is provided with com pres sion
con nec tors for sealing all wires.
No sealing compound is need ed
to make con nec tions wa ter proof.
Wiring diagrams are provided
with the panel for making
connections. The size wire to use
from the panel to sump de pends
on motor size and distance in feet.
Be sure each wire is checked
out so that a wrong connection
will not be made. An ohm me ter
or Megger can be used to check
wire continuity.
Installing Switch Controls:
The controls are supported by a
mount ing bracket that is attached
to sump wall, cover, or to the
NEMA 4 junction box.
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 top
of volute, so that the volute will
always be submerged during
the pumping cycle. The sec ond,
or turn-on control, is set about
24 inches above the lower
turn-off con trol.
NUMBER OF CONDUCTORS REQUIRED BETWEEN CONTROL PANEL AND NEMA 4 JUNCTION BOX
POWER LINES AND CONTROL WIRES CAN BE CARRIED IN CONDUIT OR CAN BE UNDERGROUND BURIED CABLE
System Number of Number of Number of Type Control Wires Power Lines Ground Wires #8 Number of Number of
Sensor Wires Ground Wires
Simplex 4 3 1 3 1
Simplex with Alarm 6 3 1 3 1
Duplex 6 6 2 6 2
Duplex with Alarm 8 6 2 6 2
HEAT SENSOR & SEAL FAILURE
3
Page 4
More distance between turn-on
and turn-off controls can be used,
but sew age may become septic,
and excessive solids may collect
for the pump to handle. A frequent
pumping cycle is recommended
for best op er a tion.
If an alarm system is used, this
con trol is usually set about 6
inches above the override control.
Making Electrical Connections:
All electrical wiring must be in
ac cor dance with local codes, and
only competent electricians should
make the installations. Complete
wiring diagrams are glued to the
inside cover of the panel. All wires
should be checked for grounds
with an ohm me ter or Megger
after the connections are made.
THIS IS IMPORTANT, AS ONE
GROUNDED WIRE CAN CAUSE
CON SID ER ABLE TROU BLE.
IMPORTANT: If equipment
is not properly wired and
pro tect ed as recommended, the
warranty is void.
Heat Sensors and Seal
Failure Connections:
Be sure heat sensor wires are
con nect ed in series with the
starter coil. Connections are
provided on the terminal strip.
Pump Operations
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 sump.
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 to motor 3f only.
DO NOT INTERCHANGE
MAIN INCOMING LINES.
If duplex system, check
second pump in the
same manner.
4. Now set both H-O-A switches
to Auto position and allow
water to rise in sump until one
pump starts. Allow pump to
op er ate until the level drops
to turn-off point.
5. Allow sump level to rise to
start other pump. Notice run
lights on panel. Pumps should
alternate on each successive
cycle of op er a tion.
6. Turn both H-O-A switches
to Off position and allow
sump to ll to the override
control level.
7. Turn both switches to Auto
po si tion and both pumps
should start and operate
together until level drops to
turn-off point.
8. Repeat this operation cycle
sev er al times before leaving
the job.
9. Check voltage when pumps
are operating and check the
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 con sult ed.
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 on 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.
230V 3ø460V 3ø
45 6
78 9
12 3
BL
(L1)
4
W
(L2)
DUAL VOLTAGE
3 PHASE MOTOR WIRING
45 6
78 9
GREENGREEN
R
(L3)
12 3
W
BL
(L2)
(L1)
R
(L3)
HEAT SENSORS AND SEAL FAILURE CONNECTIONS
FOR ANY VOLTAGE MOTOR
ELECTRODE
HEAT SENSORS
IN MOTOR
WINDINGS
WHITEBLACK
HEAT SENSORSSEAL FAILURE
REDDARK
GREEN
Page 5
Pump Maintenance
Lubrication or other maintenance
is not required, as the motors are
oil filled.
Generally, these pumps give
very reliable service, and can
be expected to operate for many
years without failure under
normal operating con di tions.
Lightning:
In some areas where considerable
lightning occurs, it is
recommended that a lightning
arrestor be installed at the control
panel. Lightning arrestors are
good insurance against damage to
an expensive motor.
Field Service on Motor:
All submersible motors out of
warranty can be serviced in
the field by any reliable motor
service shop. Any pump, in
warranty, must be returned to the
factory for service or re paired
at an authorized Hydromatic
service center. Charges will not
be allowed if in warranty pump
is not taken to an authorized
Hydromatic service center.
When field service is performed
on a pump, these instructions
should be carefully followed.
Replacing Stator:
®
the seal failure con nect ing
wire must be dis con nect ed
before housing is com plete ly
removed.
4. Set assembly on bench and
re move connection box.
When box is lifted off,
connection wires to motor
will be exposed. These wires
will probably be burned, but
each wire is tagged with a
metal marker giving wire
number. Cut the wires.
If the leads to the connection
box are burned, a complete
new con nec tion box with new
wire must be used. The wires
are potted in with sealing
compound and a new
unit must be obtained from
the factory.
5. The stator is held in the
housing with a bolted-in
clamp ring.
6. After ring is removed, turn
hous ing upright and bump
on hard wood blocks. This
should jar the stator loose and
allow it to drop out.
7. Thoroughly clean housing
before replacing new
stator. Replace stator and
make all wire con nec tions
to connection box before
replacing housing on pump.
This is important as leads
must be tucked behind the
windings by using hands up
through rotor core.
IMPORTANT: Use only
com pres sion type insulated
connectors on the wires.
Do not tape leads as oil will
de te ri o rate the tape and cause
damage to stator and bear ings.
8. Check top bearing. If clean
and does not turn rough,
bearings can be reused and it
is not necessary to com plete ly
dismantle pump to change
bearings. If bearings are
damaged with dirt or heat, they
must be replaced. Remember
to reinstall the upper bearing
load spring.
9. Replace stator housing onto
seal chamber and bolt in
place. BE SURE SEAL
FAILURE WIRE IS
CONNECTED BEFORE
HOUS ING IS ASSEMBLED.
Be sure O-ring seal has been
replaced. If O-ring is nicked
or cut, replace with new one.
This ap plies to all O-rings
used in as sem bly.
1. If stator only is damaged,
it may not be necessary to
completely dismantle pump
as stator and housing can be
lifted from pump without
disturbing seals or bear ings.
2. To drain all oil from upper
hous ing, remove drain plug in
bot tom of stator housing and
remove plug in top of housing
to allow air to enter.
3. After chamber is drained,
remove hold-down bolts and
lift off. Use care in lifting as
WARNING
WARRANTY IS VOID IF HEAT SENSORS ARE NOT
CONNECTED AS SHOWN (IN SERIES WITH CONTACTOR OIL)
TWO WIRE CONTROL OFFERING AUTOMATIC RESET
BLACK
BLACK
THERMOSTATS
IN SERIES
THERMOSTATS
IN SERIES
L2
WHITE
L2
WHITE
L1
ON-OFF
SWITCH
THREE WIRE CONTROL OFFERING AUTOMATIC RESET
L1
IN CERTAIN APPLICATIONS THE NEC MAY REQUIRE THREE OVERLOAD RELAYS
COIL
COIL
OLOLSTART
5
Page 6
10. After all leads are reconnected
in the connection box, make
a high voltage ground test
on each wire. The only wire
that should show ground is
the green power lead and the
ground lead in the aux il ia ry
control cable.
11. For safety, complete pump
should be air checked under
water for leaks. Lay pump
on side for this oil lling
with oil ll hole upright. Do
not completely ll; leave
oil about 1 inch below plug
hole. Use only Hydromatic
®
sub mers ible oil in this
chamber or high grade
trans form er oil. Re place plug;
use Permatex on threads.
Install air valve in top plug
open ing of motor housing and
charge housing with about
10 psi of air. Be sure air is
dry. Do not use air line where
water may be trapped in the
line. Submerge complete
unit under water and check
for leaks.
12. Rell motor chamber with oil.
Use high grade transformer
oil or Hydromatic special
sub mers ible oil. Fill chamber
until oil covers top of the
windings. Leave air space
in top for expansion. Use
Permatex on plug threads.
Replacing Seals and Bearings:
1. Drain all oil from motor
chamber and seal chamber
as described.
2. Remove motor housing
as described.
3. Remove bolts that hold seal
cham ber to pump housing.
Use back-off screws to break
loose. With hardwood block,
tap end of impeller to loosen
from shaft. When free, remove impeller from shaft.
4. Lift rotating assembly (rotor,
shaft and impeller) from pump
case and place horizontally
on bench.
5. Impeller Removal
Hold rotor and remove bolt
and washer from impeller
end of shaft, then thread bolt
back into shaft. The impeller
is keyed to the shaft, so
by using a screwdriver on
opposite sides behind the
impeller, apply force, then tap
on the end of the bolt to break
impeller loose from taper
shaft. Remove impeller.
IMPORTANT: The impeller is
designed to be self- tightening
when running, so impeller may
be difficult to break loose. If this
is the case, use plastic or rubber
hammer on im pel ler tip to free.
Remove impeller.
6. Remove lower seal spring and
pry out seal with screwdriver.
7. To remove seal housing, take
out socket head bolts and
using bolts in back of holes,
pry plates loose. This will
force out lower seal if not
already removed.
8. Remove snap ring that holds
upper seal. Pull seal if it
is free. If not free, it can
be forced off when shaft
is removed.
9. Remove 4 bolts that hold
bearing housing in place. Set
assembly in upright position
and bump end of shaft on
hardwood block. This will
push the bearing from the
housing and will force upper
seal from shaft.
10. Use bearing puller to remove
bearings. Replace with new
bear ings. Press only on
inner face of bearing when
replacing. Pressing on outer
face can damage the bearing.
IMPORTANT: DO NOT USE
ANY OF THE OLD SEAL
PARTS. REPLACE WITH
ALL NEW SEALS.
11. Thoroughly clean all castings
before replacing seals. One
grain of dirt between the seal
faces can cause failure.
12. Examine all O-rings for nicks
before using.
13. Use Locktite
®
on socket head
locking screw in end of shaft.
Pump
Troubleshooting
Below is a list of common
problems and the probable causes:
Pump will not start.
1. No power to the motor.
Check for blown fuse or open
circuit break er.
2. Selector switch may be in the
Off position.
3. Control circuit transformer
fuse may be blown.
4. Overload heater on starter
may be tripped. Push to reset.
Pump will not start and
overload heaters trip.
1. Turn off power and check
motor leads with Megger
or ohmmeter for possible
ground.
2. Check resistance of motor
wind ings. All 3 phases should
show the same reading.
3. If no grounds exist and the
motor windings check OK,
remove pump from sump
and check for clogged or
blocked impeller.
6
Page 7
Pump operates with selector
switch in Hand position but will
not operate in Auto position.
1. This indicates trouble in
the oat level control or the
alternator relay.
2. Check control panel
for trouble.
Pump runs but will not shut off.
1. Pump may be air locked.
Turn pump off and let set for
several minutes, then restart.
2. Lower oat control may be
hung-up in the closed position.
Check in sump to be sure
con trol is free.
3. Selector switch may be in the
Hand position.
Pump does not deliver
proper capacity.
1. Discharge gate valve may
be partially closed or
partially clogged.
5. If pump has been in service
for some time and capacity
falls off, remove pump
and check for wear or
clogged impeller.
Motor stops and then restarts
after short period but overload
heaters in starter do not trip.
1. This indicates heat sensors in
the motor are tripping due to
ex ces sive heat. Impeller may
be par tial ly clogged giving
a sustained overload but not
high enough to trip overload
heat er switch.
2. Motor may be operating out
of liquid due to a failed level
control.
3. Pump may be operating on
a short cycle due to sump
being too small or from water
re turn ing to sump due to a
leaking check valve.
2. Check valve may be partially
clogged. Raise level up and
down to clear.
3. Pump may be running in
wrong direction. Low speed
pumps can operate in reverse
di rec tion with out much noise
or vibration.
4. Discharge head may be
too high. Check total head
with gauge when pump
is operating. Total head is
dis charge gauge pressure
converted to feet plus vertical
height from water level in
sump to center line of pressure gauge in discharge
line. Gauge should be installed
on pump side of all valves.
Multiply gauge pressure in
pounds by 2.31 to get head
in feet.
Pentair Hydromatic® warrants its products against defects in material and workmanship for a period of 12 months
from the date of shipment from Pentair Hydromatic or 18 months from the manufacturing date, whichever
occurs first – provided that such products are used in compliance with the requirements of the Pentair Hydromatic
catalog and technical manuals for use in pumping raw sewage, municipal wastewater or similar, abrasive-free,
noncorrosive liquids.
During the warranty period and subject to the conditions set forth, Pentair Hydromatic, at its discretion, will repair
or replace to the original user, the parts that prove defective in materials and workmanship. Pentair Hydromatic
reserves the right to change or improve its products or any portions thereof without being obligated to provide such
a change or improvement for prior sold and/or shipped units.
Start-up reports and electrical schematics may be required to support warranty claims. Submit at the time of start up
through the Pentair Hydromatic website: http://forms.pentairliterature.com/startupform/startupform.asp?type=h.
Warranty is effective only if Pentair Hydromatic authorized control panels are used. All seal fail and heat sensing
devices must be hooked up, functional and monitored or this warranty will be void. Pentair Hydromatic will cover
only the lower seal and labor thereof for all dual seal pumps. Under no circumstance will Pentair Hydromatic be
responsible for the cost of field labor, travel expenses, rented equipment, removal/reinstallation costs or freight
expenses to and from the factory or an authorized Pentair Hydromatic service facility.
This limited warranty will not apply: (a) to defects or malfunctions resulting from failure to properly install, operate or
maintain the unit in accordance 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 that
are not installed in accordance with applicable local codes, ordinances and good trade practices; (e) if the unit is
moved from its original installation location; (f) if unit is used for purposes other than for what it is designed and
manufactured; (g) to any unit that has been repaired or altered by anyone other than Pentair Hydromatic or an
authorized Pentair Hydromatic service provider; (h) to any unit that has been repaired using non factory specified/
OEM parts.
Warranty Exclusions: PENTAIR HYDROMATIC MAKES NO EXPRESS OR IMPLIED WARRANTIES THAT EXTEND
BEYOND THE DESCRIPTION ON THE FACE HEREOF. PENTAIR HYDROMATIC SPECIFICALLY DISCLAIMS THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ANY PARTICULAR PURPOSE.
Liability Limitation: IN NO EVENT SHALL PENTAIR HYDROMATIC BE LIABLE OR RESPONSIBLE FOR
CONSEQUENTIAL, INCIDENTAL OR SPECIAL DAMAGES RESULTING FROM OR RELATED IN ANY MANNER TO
ANY PENTAIR HYDROMATIC PRODUCT OR PARTS THEREOF. PERSONAL INJURY AND/OR PROPERTY DAMAGE
MAY RESULT FROM IMPROPER INSTALLATION. PENTAIR HYDROMATIC DISCLAIMS ALL LIABILITY, INCLUDING
LIABILITY UNDER THIS WARRANTY, FOR IMPROPER INSTALLATION. PENTAIR HYDROMATIC RECOMMENDS
INSTALLATION BY PROFESSIONALS.
Some states do not permit some or all of the above warranty limitations or the exclusion or limitation of incidental or
consequential damages and therefore such limitations may not apply to you. No warranties or representations at any
time made by any representatives of Pentair Hydromatic shall vary or expand the provision hereof.
740 EAST 9TH STREET 490 PINEBUSH ROAD, UNIT #4
ASHLAND, OHIO, USA 44805 CAMBRIDGE, ONTARIO, CANADA N1T 0A5
419-289-1144 800-363-PUMP
WWW.HYDROMATIC.COM
Warranty Rev. 12/13
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