Pentair Pool Products HYDROMATIC SP50 Manual

Submersible Sewage
Ejector Pump
SP50/SP50AB Now Includes
SP50AB
Information
NOTE! To the installer: Please make sure you provide
this manual to the owner of the pumping equipment or to
the responsible party who maintains the system.
Pump Installation and Service Manual

2
Thank you for purchasing your
Hydromatic®pump. To help
ensure years of trouble-free
operation, please read the
following manual carefully.
Before Operation:
Read the following instructions
carefully. Reasonable care and
safe methods should be practiced.
Check local codes and
requirements before installation.
Attention:
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
continued safe product use.
DO NOT THROW AWAY OR
LOSE THIS MANUAL. Keep it
in a safe place so that you may
refer to it often.
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.
To reduce risk of electrical shock:
1. Risk of Electrical Shock:
This pump has not been
investigated for use in
swimming pool areas.
2. Risk of Electrical Shock:
Connect only to a properly
grounded receptacle.
Septic tank is to be vented
in accordance with local
plumbing codes.
Do not smoke or use sparkable
electrical devices or flame in a
septic (gaseous) or possible
septic sump.
If a septic sump condition
exists and if entry into sump is
necessary, then (1) provide
proper safety precautions per
OSHA requirements and (2)
do not enter sump until
these precautions are strictly
adhered to.
Do not install pump in location
classified as hazardous per
N.E.C., ANSI/NFPA 70 - 2001.
Failure to heed above cautions
could result in injury or death.
General
Information
Pump
Warning
NOTE: Some city regulations
do not allow installing a
pump with plastic pipe. Check
local regulations.
5. In applications where the
pump may sit idle for months
at a time, it is recommended
that the pump(s) be cycled
every month to ensure the
pumping system is working
properly when needed.
6. Hydromatic check valve
should be installed in
discharge pipe.
7. An audible alarm system for
high water conditions should
be installed in every pump for
greater protection, such as the
Q Alert for indoor use, rated
NEMA I. For additional
control panels contact your
Hydromatic distributor.
8. Connect to power source
using 3-prong grounded AC
receptacle. Do not remove
ground pin from electrical
plug. Do not use an
extension cord.
9. Use pump partially or
completely submerged for
pumping waterlike liquids
(temperature to 140° F). The
SP50 will pump solid materials
up to 1-1⁄2" (spherical) in
diameter. This pump has not
been investigated for use in
swimming pool areas.
10.Caution: Do not pump
flammable liquids, strong
chemicals or salt water.
Installation
Instructions
These important instructions must
be followed for satisfactory
performance of your pump.
Before installation, check
your local electrical and
plumbing codes.
1. Provide proper sump.
Recommended minimum sump
diameter is 18".
2. Make sure sump is free of
string, cloth, nails, gravel, etc.
before installing pump.
3. Do not set pump directly on
the bottom of sump if it is not
solid. Raise the pump by using
bricks or concrete blocks
underneath it.
4. Use steel or plastic pipe for all
connecting lines between
pump and sewer outlet.

3
Pump
Installation

Pump
Servicing
Read the following instructions
carefully before replacing any
parts. Reasonable care and safe
methods should be practiced.
Check local codes and
requirements before installation.
Only competent electrician
should make the installations.
Servicing should be performed
only by knowledgeable pump
service contractor or authorized
service station.
Remove from power source.
WARNING: Shock hazard.
1. Checking power cord. To be
sure wires are not burned off or
broken in cord, use ohmmeter
to check. Set ohmmeter scale
pointer to R X 1 scale and
attach one meter lead to white
cord wire and one meter lead
to black cord lead, then place
screwdriver blade across blade
terminals of plug. If cord is
OK, meter needle will go to
zero and stay there. If meter
needle does not move, this will
indicate an open wire and cord
must be replaced.
2. Checking motor operation.
When switch cap is off and
switch is removed, connect
two terminals that were
connected to switch together
and tape. Plug power cord in
power receptacle to check
motor operation. Motor should
start and run smoothly. If
motor does not start, pump
must be dismantled and
motor checked.
CAUTION: Be sure to
unplug cord before continuing
or reassembly if pump
is functional.
3. Checking motor stator. If
motor does not run when tested
as described above, the stator
must be removed from the
housing and checked. Remove
plug (12) from top of housing,
and pour oil in container,
preferably glass, so that oil can
be observed.
If oil is clear it will indicate
motor is not burned and there
has been no water leaking into
the motor. If oil is cloudy or
black, it will indicate water in
the motor or a burned stator.
After draining oil, remove
bolts (10) and remove cord nut
(25) from motor cord (21).
Remove rubber seal ring from
around cord. Turn cord and lift
up until seal ring (26) is
removed. Pry between ears of
housing (24) to remove from
base. Disconnect motor cord
from stator and remove bolts
(2) and plate. Lift stator from
base. If stator is visibly burned,
it must be replaced. If stator is
not burned but the oil shows
signs of water, stator can
be checked with the ohmmeter
to see if it can be reused.
4. Ground check. Set ohmmeter
scale pointer to R X 100K
scale and check meter by
putting both meter leads
together and adjusting the
needle knob until meter reads
zero. If meter cannot be
adjusted to zero it will indicate
that batteries in meter must be
replaced.
Check meter to zero and adjust
if necessary before making
any checks on motor.
Now connect one meter lead
to one blade terminal of stator
and touch other meter lead to
motor stator shell. If needle
reads below 5 (500,000 ohms)
stator must be dried out before
rechecking. To dry out, place
motor in 220 degree oven for
four hours. Recheck after
motor cools. If motor is new
or thoroughly dry, needle of
ohmmeter will not move on
the ground check: This
indicates a reading of 50
megohms or higher. One
megohm is one million ohms.
4
Performance Curve

When making the ground
check, if the needle goes to
zero the motor in all
probability has a wire touching
the stator shell at some point
and the stator will have to
be replaced.
5. Winding resistance test. If
motor shows a satisfactory
ground check then the winding
resistance must be checked.
Use ohmmeter with scale
pointer set on R X 1 scale. On
this scale, meter reads directly
on ohms. Always check the
meter with leads together
as described above, under
ground check, before making
a reading on the winding.
Connect one meter lead to
the terminal with the brown
wire connected underneath the
terminal board. Connect the
other lead to the terminal
housing with the blue wire.
Meter should read 1.2 to 1.4
ohms; this is the resistance of
the main winding for a 115 volt
stator. This reading for a 230
volt stator should be 4.8 to 5.9
ohms. Now connect one meter
lead to the brown wire terminal
and the other meter lead to the
red wire beneath the terminal
board. The meter should read
3.8 to 5.4 ohms for a 110 volt
stator. For a 230 volt stator this
reading should be 16 to 21
ohms. This is the resistance of
the start winding. Now connect
one meter lead to the red wire
and one to the blue wire. The
meter reading should be the
sum of the other two readings
or 5.0 to 6.8 ohms for a 115
volt stator or 20.8 to 26.9 ohms
for a 230 volt stator. If the
readings obtained do not agree
with those given, the stator is
defective and must be replaced.
6. Replacing seal. If water is
found in motor, seal must
be replaced. Remove bottom
casting (5). Place screwdriver
in shaft slot and tap impeller
(6) lightly with hammer to
unscrew. Use cloth on impeller
to prevent cutting hand. Tap on
end of shaft with a plastic or
rubber hammer. This will push
seal (8,9) from shaft. Clean
case thoroughly; all sand and
dirt must be removed. Remove
stationary ceramic seat of seal
from housing. Push new
ceramic seat into housing. Use
Parker O-ring lube on rubber
ring. Replace rotor in housing.
Use care in putting shaft
through ceramic seat to be sure
it is not chipped. Inspect seal
after shaft is in place. If seal
has been chipped it must be
replaced. Do not replace
rotating part of seal until
the balance of the pump
is assembled.
7. Bearings. When the pump
rotor has been removed, check
bearings before replacing. If
bearings are rusted or rough
when turned, they must be
replaced. Pull bearings with a
bearing puller. If puller cannot
be replaced over lower
bearing, remove the outer face
by cracking in a vise. After
outer face is cracked, it can be
removed and the balls can be
removed. This will allow inner
face to be pulled.
When replacing bearings push
only on inner face. If a press is
not available, bearings can be
tapped on, using a sleeve that
bears only on the inner face.
Never pound on the outer face
or bearing will be ruined.
8. Reassembly of stator and
housing. Replace stator (20)
with terminal block turned
toward switch pocket as shown
by drawing. Replace plate and
bolts (2). Be sure ears on plate
are in place inside of shell of
stator.
Replace cord (21) with push on
terminals in place on terminal
block. Bend tabs of push on
connectors down so that they
cannot touch plate or housing.
Place wire in straight up
position so that housing (24)
can be replaced over wire. Be
sure bearing load springs are
in place in housing before
replacing housing. Hold
springs in place in housing
with O-ring lube, or other
heavy grease. Be sure rubber
ring (3) is in place on case
when lowering housing into
place. Tap down on top of
housing with plastic or rubber
hammer to seat over bearing.
Replace screws (10) and
tighten evenly from one side to
the other until housing is
firmly in place. At this point
turn shaft to be sure rotor
is free. If rotor binds, it
indicates screws are not
tightened evenly.
Push rubber seal ring (26)
around cord and replace cord
nut (25). Tighten cord nut
tight. Nut must be tight enough
so that cord cannot be pulled
up. Put cord into switch cap
and secure with rubber ring
and nut. Replace switch as
described earlier.
Now replace rotating part of
seal (8). Use tapered installing
sleeve furnished with seal to
push over shaft threads. Screw
impeller (6) onto shaft. Hold
shaft with screwdriver in slot
to tighten on impeller. Replace
bottom casting (5).
5

6
11.Manual pumps. All general
instructions for automatic
pumps apply to manual pumps
except the level switch is not
used and the power cord does
not have a vent tube.
Manual models have the plug
(12) in switch cap for installing
a fitting to air test the pump for
leaks. Replace all plugs with
Permatex on threads. The
switch housing seat is tapped
and plugged with pipe plug.
Hydromatic pumps have a small
air vent hole in the impeller cavity
to let out trapped air. If this hole
becomes plugged, pump may air
lock. To break the air lock, use a
small screwdriver to clear hole in
the impeller cavity.
As a secondary precaution in
installations of this type, 1 ⁄ 16"
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.
NOTE: In sumps where the
pump is operating daily, air
locking rarely occurs.
Pump is now ready for check
run before air testing and
filling with oil. Plug cord
(21) into power receptacle and
push up on switch chamber
diaphragm (23) to start motor.
Motor should start and run
smoothly. When pressure is
released on diaphragm, motor
should stop. Repeat operation
2 to 3 times to be sure
operation is satisfactory and
not binding.
9. Air test. To air test unit, put air
fitting in plug opening (12) and
charge motor housing with air
to 7 psi. Do not use higher
pressure or seal will be blown
open. Charge switch cap with
air through nylon vent tube as
described earlier and place
complete unit under water.
No air bubbles should show on
this test. If leak shows,
unit must be dismantled to
correct leak.
10.Oil fill. After air test is
satisfactory, remove from
water and wipe or blow off any
excess water.
Do not put oil in motor with
any water present that could
get into motor.
Fill to 1 ⁄ 8" over motor plate
through opening. Use oil fill
tube that will go into holes so
that air can escape. Replace
plug (12) and pump is ready
for operation. Use only high
grade transformer oil or special
Hydromatic submersible oil in
motor.
Pump
Servicing
Performance Curve

7
SP50
Parts List
Ref. No. Part No. Description Qty.
1 60-000-5 Handle – Pump 1
3 77-003-1 O-Ring Sq. cut 1
4 202-000-2 Volute 1
5 203-000-2 Bottom Plate 1
6 614-001-2 Impeller 1
7 19109A070 Jam Nut 1
9 14525A010 Seal Assy. 1
10 19100A012 Screw 4
11 24709110000 Oil – Paraffinic .54 gal.
12 14981-001-1 Plug – Pipe 1/4" 1
13 19099A029 Screw – 1/4 - 20 2
14 — —
15 30-021-1 Bolt 1
16 5502-005-1 Bracket – Switch 1
17 208-000-2 Flange – Discharge 1
18 324-001-1 Gasket – Discharge Flange 1
19 19103A052 Bolt 2
20 13349-000-1 Motor – 115 V. single phase 1
20 13592-000-1 Motor – 200 or 230 V. single phase 1
21 14623-010-1 Power Cord 10' 1
21 14623-020-1 Power Cord 20' 1
22 13425-069-1 Nameplate 1
23 14974-008-5 Switch/Pressure Ass'y Pg 1
24 56-036-2 Motor Housing 1
25 75-005-1 Cord Nut 1
26 139-014-1 Ring – Seal 1
27 6000-053-1 Ground Wire 1
28 6000-061-1 Black Wire 2
1 60-000-5 Handle – Pump 1
3 77-003-1 O-Ring Sq. cut 1
4 202-000-2 Volute 1
5 203-000-2 Bottom Plate 1
6 614-001-2 Impeller 1
7 19109A070 Jam Nut 1
9 14525A010 Seal-Assy. 1
10 19100A012 Screw 4
11 24709110000 Oil – Paraffinic 1
12 14981-001-1 Plug – Pipe 1/4" 1
13 19099A029 Screw – 1/4 - 20 2
14 — —
17 208-000-2 Flange – Discharge 1
18 324-001-1 Gasket – Discharge Flange 1
19 19103A052 Bolt 2
20 13594-000-1 Motor – 200 V. three phase 1
20 13595-000-1 Motor – 230 or 460 V. three phase 1
20 13596-000-1 Motor – 575 V. three phase 1
21 11644-089-5 Power Cord 20' 1
22 13425-070-1 Nameplate 1
24 56-023-2 Motor Housing 1
Ref. No. Part No. Description Qty.
22
12
1
24
20
3
21
25
11
10
16
15
19
17
23
18
4
14
5
96
13
27
28
7
26
SP50A x SP50M x Single Phase SP50A x SP50M x Three Phase
NOTE: Use Loctite on Impeller threads

8
SP50AB1
Parts List
Ref. No. Part No. Description Qty.
1 60-000-5 Handle – Pump 1
3 77-003-1 O-Ring Sq. cut 1
4 202-010-2 Volute 1
5 203-010-2 Bottom Plate 1
6 614-010-2 Impeller 1
7 19109A070 Jam Nut 1
9 14525A010 Seal Assy. 1
10 19100A012 Screw 4
11 — Oil – Paraffinic 1
12 05022A088 Plug – Pipe 1/4" 1
13 19099A029 Screw – 1/4 - 20 2
14 —
—
15 30-021-1 Screw 1
16 5502-005-1 Bracket – Switch 1
17 208-010-2 Flange – Discharge 1
18 324-001-1 Gasket – Discharge Flange 1
19 19103A052 Bolt 2
20 13349-000-1 Motor – 115 V. single phase 1
21 14623-020-1 Power Cord 20' 1
22 13425-069-1 Nameplate 1
23 14974-309-5 Switch/Pressure Ass'y Pg 1
24 56-013-2 Motor Housing 1
25 75-007-1 Cord Nut 1
26 139-014-1 Ring – Seal 1
22 12
1
24
20
3
21
25
11
10
16
15
19
17
23
18
4
14
5
96
13
27
28
7
26
SP50AB1
NOTE: Use Loctite on Impeller threads

9
Pump
Notes
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________

10
Pump
Notes
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________

11
Pump
Notes
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________

Item # W-03-232 9/07Part # 5625-232-1
WARRANTY
Hydromatic®warrants to the original purchaser of each Hydromatic product(s) that any part
thereof that proves to be defective in material or workmanship within one year from date of installation or
18 months from manufacture date, whichever comes first, will be replaced at no charge with a new or
remanufactured part, F.O.B. factory. Purchaser shall assume all responsibility and expense from removal,
reinstallation and freight. Any item(s) designated as manufactured by others shall be covered only by the
express warranty of the manufacturer thereof. This warranty does not apply to damage resulting from
accident, alteration, design, misuse or abuse. The pump must be installed, operated and maintained in
accordance with the published instructions of the appropriate Installation & Service Manual.
All dual seal non-clogs and 3–5 HP grinders must have seal failure and heat sensors attached and functional
for Warranty to be in effect. If a seal failure should occur, Hydromatic will cover only the lower seal and labor
thereof. Labor is based on Authorized Service Center contract allowance. If the heat sensor is not attached
and functional, Warranty is void. If the seal failure sensor is not attached and functional, Warranty is void.
If the material furnished to the Buyer shall fail to conform to this contract or to any of the terms of this
written warranty, Hydromatic shall replace such nonconforming material at the original point
of delivery and shall furnish instruction for its disposition. Any transportation charges involved in such
disposition shall be for the Buyer’s account. The Buyer’s exclusive and sole remedy on account or in respect
of the furnishing of material that does not conform to this contract or to this written warranty, shall be to
secure replacement thereof as aforesaid. Hydromatic shall not in any event be liable for the cost of any labor
expended on any such material or for any incidental or consequential damages to anyone by
reason of the fact that such material does not conform to this contract or to this written warranty.
ALL IMPLIED WARRANTIES, INCLUDING THE IMPLIED WARRANTY OF MERCHANTABILITY
AND THE IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED
TO THE SAME EXTENT AS THE EXPRESS WARRANTY CONTAINED HEREIN. Some states do not
allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.
MANUFACTURER EXPRESSLY DISCLAIMS AND EXCLUDES ANY LIABILITY FOR
CONSEQUENTIAL OR INCIDENTAL DAMAGES FOR BREACH OF ANY EXPRESS OR IMPLIED
WARRANTY ARISING IN CONNECTION WITH THIS PRODUCT, INCLUDING WITHOUT
LIMITATION, WHETHER IN TORT, NEGLIGENCE, STRICT LIABILITY CONTRACT OR
OTHERWISE. Some states do not allow the exclusion or limitation of incidental or consequential damages,
so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and
you may also have other rights which vary from state to state.
– Your Authorized Local Distributor –
USA
740 East 9th Street, Ashland, Ohio 44805
Tel: [phone] Fax: [phone] www.hydromatic.com
CANADA
269 Trillium Drive, Kitchener, Ontario, Canada N2G 4W5
Tel: [phone] Fax: [phone]
© 2007 Hydromatic®Ashland, Ohio. All Rights Reserved.