Pentair STA-RITE SILENTFLO SF550100 User manual

1
SILENTFLO™ Pool Pump Owner’s Manual
OWNER’S MANUAL
POOL PUMP
SILENTFLO™
IMPORTANT
The pump must be supplied from a circuit protected by a residual current device (RCD)
with a maximum rated residual current of 30mA. Should the installer or owner be
unfamiliar with the correct installation or operation of this type of equipment you should
contact the distributor/manufacturer for the correct advice before proceeding with the
installation or operation of this product.

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SILENTFLO™Pool Pump Owner’s Manual SILENTFLO™ Pool Pump Owner’s Manual
TABLE OF CONTENTS MODEL DATA
Page
Model Data 3
Installation 4 - 6
Pressure Testing 7
Pump Mount 8
Plumbing 9 - 11
Piping 9
Fittings 9
Pool Outlets 9
Entrapment Protection 10
Testing and Certication 10
Outlets Per Pump 10
Water Velocity 10
Electrical 12
Operation 13
Priming Pump 13
Service and Maintenance 14
Pump Service 14
Troubleshooting 15 - 16
Parts Breakdown 17 - 18
* dB@ 1 metre
Model Data
Part
Pump Power (W) Supply
Voltage
(V 50Hz)
Nominal
Motor
Power (hp)
Sound
Pressure
Level (dBA*)
Full Load
(A)
Locked
Rotor
Current
Capacitor
(µF)
P1 P2
SF550100
600 450 230-240V 0.75 56 2.6 14 30
SF750100 740 550 230-240V 1.0 56 3.3 14 30
SF1100100 1050 790 230-240V 1.5 59 5.0 22 25
SF1500100 1590 1190 230-240V 2.0 61 6.7 28 35
Motor
Type
TEFC, 2-Pole, Continuous Duty, IPX5, Internal
Auto Reset Thermal Overload, Deep Groove Ball
Bearings with Double-Contact Lip Seal
(NSK or SKF only).
Operating Conditions
Water (Swim Pool) Temperature 5°C-40°C.
Max. Ambient Temperature 55°C.
Construction Materials
Component Material
Pump Casing Dura-Glas composite resin
Pump internals and base Glass reinforced polypropylene
Motor Shaft Stainless Steel 303
Motor Cast Aluminium
Strainer Basket High Impact Polystyrene
O-rings Low Friction Nitrile
Strainer Pot Lid Polycarbonate
Barrel Unions ABS
Mechanical Seal 3/4" Carbon Ceramic Nitrile bellows
316 SS spring

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SILENTFLO™Pool Pump Owner’s Manual SILENTFLO™ Pool Pump Owner’s Manual
INSTALLATION INSTALLATION
SilentFlo is electrically connected. Ensure that it is isolated from
electrical supply during installation and any subsequent service
work.
The pump should be installed and serviced by a suitably qualied
person in order to avoid hazard.
These instructions are a guide only. Should you the installer or owner
of the product be unfamiliar with the correct installation or operation
of this product you should contact a suitably qualifed person for
advice.
Freezing conditions will damage the unit, as water expands as it
freezes. Ensure that Silento is located so that it is not prone to
freezing, or ensure that the product is disconnected and dried of
water during cold conditions.
This appliance is not intended for use by persons (including children)
with reduced physical, sensory or mental capabilities, or lack of
experience and knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a person
responsible for their safety.
Children should be supervised to ensure that they do not play with
the appliance.
If the supply cord is damaged, it must be replaced by the
manufacturer, its service agent or similarly qualied persons in order
to avoid a hazard.
The pump operator or owner must be provided with this owner’s
manual. This must be read before operation, and followed during
operation.
NEVER run pump dry. Running pump dry may damage seals, causing
leakage and ooding. Fill pump with water before starting motor.
If pump has been pressure tested, ensure pressure has been
released before removing trap lid. Do not block pump suction. To do
so with body may cause severe or fatal injury.
Small children using pool must ALWAYS have close adult supervision.
Pump suction is hazardous and can trap and drown or disembowel
bathers. Do not use or operate pump, pool/spas if a suction outlet
cover is missing, broken, or loose. Follow the guidelines below for a
pump installation which minimises risk to users of pool and spas.
Fire and burn hazard. Modern motors run at high temperatures. To
reduce the risk of re, do not allow leaves, debris, or foreign matter
to collect around the pump motor. To avoid burns when handling the
motor, let it cool for at least 20 minutes before trying to work on it.

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SILENTFLO™Pool Pump Owner’s Manual SILENTFLO™ Pool Pump Owner’s Manual
PRESSURE TESTING
INSTALLATION
(Have a trained pool professional perform all pressure tests). Before pressure
testing, make the following safety checks:
1. Check all clamps, bolts, lids, and system accessories prior to testing.
2. Release all air in system before testing.
3. Tighten trap lid to 4.1kg-m torque for testing.
4. Water pressure for test must be less than 170kPa (25 PSI).
5. Water tempertaure for test must be less than 38°C.
6. Limit test to 24 hours. After test, visually check system to be sure it is ready for
operation. Remove trap lid and retighten hand tight only.
Fire and burn hazard. Modern motors run at high temperatures. To reduce risk of re,
do not allow leaves, debris, or foreign matter to collect around the pump motor. To
avoid burns when handling the motor, let it cool for at least 20 minutes before trying
to work on it. A thermal overload switch protects the motor from heat damage during
operation.
Only qualied, licensed personnel should install pump. The electrical installation shall
be in accordance with the national wiring rules (AS/NZS 3000) for class I, IP55 rated
products. Refer to page 10 for Electrical Installation.
Hazardous pressure! Do not run
pump against closed discharge.
Release all pressure on
system before working on any
component.
Read the following instructions in this owner’s
manual when installing and operating equipment.
Have a trained pool professional perform all
pressure tests.
1. Do not connect system to high pressure or
mains water system.
2. Use equipment only in a swimming pool or spa
pool installation.
3. Install pump with at least 2 hydraulically
balanced main drains equipped with correctly
installed, screw - fastened, antientrapment
certied covers according to local regulations.
4. Trapped air in system can cause explosion.
Ensure all air is out of the system before
operating or testing equipment.
Incorrectly installed or tested equipment may fail, causing severe injury or property
damage.
Hazardous voltage. Can
shock, burn, or cause death.

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SILENTFLO™Pool Pump Owner’s Manual SILENTFLO™ Pool Pump Owner’s Manual
PLUMBING
DO NOT use sealants which are incompatible with pipe ttings.
Support all piping connected to the pump.
∙ Use at least 2” (50mm) PVC pipe. Increase size if a long run is needed.
∙ To avoid stress on the pump, support both suction and discharge pipes
independently.
∙ Place these supports as close to the pump as possible.
∙ To avoid a strain left by a gap at the last connection, start all piping at the pump and
run pipe away from the pump.
• Never use a suction pipe smaller than pump suction connections (2”/50mm).
• To avoid airlocking, slope suction pipe slightly upward toward the pump.
• Do not use an elbow near the suction port of the pump. Use a straight length of pipe
into the suction port.
∙ Use only new or clean PVC pipe ttings.
To prevent flooding when removing pump for service, all flooded suction systems must
have shut-off valves in suction and discharge pipes.
Fittings
Fittings restrict flow; for best efficiency use fewest possible fittings. Avoid fittings
which could cause an air trap.
Pool Outlets
Use only non-entrapping suction fitting or double suction conforming with the
AS1926.3 2010 (R2016) standard.
Piping
Pump mount must:
1. Be located away from corrosive or ammable chemicals. Have enough ventilation
to maintain air tempertaure at less than the maximum ambient temperture rating.
If this pump is installed in an enclosure/pump house, the enclosure must have
adequate ventilation (200sq.cm min, inlet & outlet) and air circulation to keep the
temperature in the enclosure at or below the motor’s rated ambient temperature
whenever the pump is running. Keep rear of motor clear (150mm).
2. Be solid, level, rigid and ribration free. (To reduce vibration and pipe stress, bolt
pump to mount). Fixing holes accept 12mm fasteners.
3. Allow pump suction inlet height to be as far below water level as possible.
4. Allow use of short, direct suction pipe (to reduce friction losses).
5. Allow for shut-off valves in suction and discharge piping.
6. Have adequate oor drainage to prevent ooding.
7. Be protected from excess moisture
8. Allow adequate access for servicing pump and piping.
PUMP MOUNT
If making connections to the internal threaded ports, use Teon tape
do not use glue as this will cause stress fractures in the pump ∙ Wrap
male pipe threads with a sucient number of layers of Teon tape.
Cover entire thread portion. Do not overtighten or tighten past thread
stop in pump port.
If leaks occur, remove pipe, clean off old tape, wrap as previously
with one to two additional layers of tape and remake the connection.
We recommend mounting the pump on a concrete platform for quietest performance.
385
B
B
A
386
279
249
385
Pump Model SF550 SF750 SF1100 SF1500
A (mm) 616 616 637 677
B (mm) 173 173 179 179

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SILENTFLO™Pool Pump Owner’s Manual SILENTFLO™ Pool Pump Owner’s Manual
PLUMBING
800mm
Certified Anti-entrapment
Cover or Suction Fitting,
screw fastened to Main
Drain Sump
Suction Outlet
(Main Drain)
Valves OK between
pump and Tee
Pump
Certified Anti-entrapment
Cover or Suction Fitting,
screw fastened to Main
Drain Sump
Suction Outlet
(Main Drain)
No valves between Tee
and Main Drains
PLUMBING
Pump suctions are hazardous and can trap and drown or disembowel bathers. Do not
use or operate pump, pool or spa if a suction outlet cover is missing, broken, or loose.
Follow the guidelines below for a pump installation which minimises risk to users or
pools and spas.
Entrapment Protection
The pump suction system must provide protection against hazard of suction
entrapment or hair entrapment/entanglement.
Testing and Certification
Suction outlet covers must have been tested by a nationally recognised testing
laboratory and found to comply with the latest AS1926.3 standard or ASME/ANSI
specification for Suction Fittings For Use in Swimming Pools, Spas, Hot Tubs, and
Whirlpool Bathtub Applications.
Outlets Per Pump
Provide at least two hydraulically balanced main drains, with covers, for each
swimming pool pump suction line. The centres of the main drains (suction fittings)
must be at least 800mm apart.
The system must be built so that it cannot operate with the pump drawing water from
only one main drain (that is, there must be at least two main drains connected to the
pump whenever it is running). However, if two main drains run into a single suction
line, the single suction line may be equipped with a valve which will shut off both main
drains from the pump.
More than one pump can be connected to a single suction line as long as the
requirements above are met.
Water Velocity
The maximum water velocity through any suction outlet must comply with the
latest AS1926.3 Standard or ASME/ANSI Specification for Suction Fittings For Use in
Swimming Pools, Spas, Hot Tubs, and Whirlpool Bathtub Applications.
Hazardous suction.
Can trap hair or body
parts, causing severe
injury or death.
DO NOT BLOCK
SUCTION.

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SILENTFLO™Pool Pump Owner’s Manual SILENTFLO™ Pool Pump Owner’s Manual
Before removing trap lid:
1. SWITCH OFF POWER SUPPLY to pump and unplug from outlet before proceeding.
2. CLOSE SHUT-OFF VALVES in suction and discharge pipes.
3. RELEASE ALL PRESSURE from pump and piping system.
4. NEVER tighten or loosen trap lid while pump is operating.
ELECTRICAL
Voltage at pump must not be more than 6% above or
10% below motor nameplate rated voltage or pump
may overheat, causing overload tripping and reduced
component life. If voltage is less than 90% or more than
106% of rated voltage when pump is running at full load,
consult the power company.
To avoid dangerous or fatal electrical shock, turn OFF
power to pump and remove plug from outlet before
working on electrical connections.
WARNING
Hazardous voltage.
Can shock, burn,
or cause death.
An automatic internal thermal overload switch protects the
motor from heat damage during operation and if operated
can restart without notice.
Maximum ambient temperature for motor operation must not exceed maximum
ambient temperature range (See page 4). Switch the pump off at the controller or
power point while ambient temperature exceeds maximum.
Priming Pump
Release all air from lter, pump and piping system: refer lter owner’s manual. In a
ooded suction system (water source higher than pump), pump will prime itself when
suction and discharge valves are opened.
If pump is not in a ooded suction system, disconnect power supply to pump follow
above instructions for removing trap lid; ll trap and pump with water.
Do not lubricate the trap lid o-ring. The original equipment O’ring contains a permanent
internal lubricant.
If the o-ring needs replacement insist on genuine ONGA service parts. Clean and
inspect o-ring; reinstall on trap. Replace trap lid turn clockwise to tighten by hand only
- no wrenches!
Pump should prime now. Priming time will depend on vertical height of suction lift and
horizontal length of suction piping. The self-priming time range is 1 to 3 minutes for a
height difference of 2 to 3 metres, under normal installation conditions. Normal
conditions are understood to be: with suction having an internal diameter of DN
50mm, water temperature at 20°C, and 50Hz mains power supply.
Should the pump not prime, ensure that all valves are open, lint trap is clear of debris
and suctions and suction pipe end is submersed in water, and that there are no leaks in
suction pipe. See troubleshooting guide.
OPERATION
Electrical installation shall be in accordance with the national wiring rules (AS/NZS
3000) taking into account its ratings (Class I, IPX5). The pump is supplied with a
standard Australian 10 amp plug and 2 metres of cord. Select the correct Pool Zone for
installation.
Using the tapped hole terminal and tin plated copper lug connect the equipotential
bonding conductor to the pump if required. The terminal is on the motor side of the
ange. Remove paint from the terminal surface and use M5x12 zinc plated screw with
lock washer or similar to secure the termination.
An RCD with maximum rated residual current of 30mA is required for the power supply
to the pump. Additionally, if a suitable socket outlet is not available a weatherproof
socket must be installed by an electrician in a suitable location. RCD tripping indicates
an electrical problem. If RCD trips and will not reset have a qualied electrician inspect
and repair electrical system.
Do not use extension leads as they are unsafe in and around the Pool Zone. Incorrect
voltage can cause re or seriously damage pump and voids warranty.

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SILENTFLO™Pool Pump Owner’s Manual SILENTFLO™ Pool Pump Owner’s Manual
SERVICE & MAINTENANCE
To avoid dangerous or fatal electrical shock hazard, turn OFF power
to motor and remove plug from power outlet before working on
pump or motor.
Routine Maintenance requires regular checking of the pump to ensure no water is
leaking from joints whilst pump is operating and inspection/cleaning of trap basket.
Debris or trash that collects in basket will choke off water ow through the pump.
Do not operate pump with trap basket missing or damaged.
Follow instructions below to clean trap:
1. Switch off power to pump, close valves in suction and discharge, and release all
pressure from system before proceeding.
2. Remove trap cover (turn clockwise). If necessary, tap handles gently with a rubber
mallet or use a board as a lever.
3. Remove strainer basket and clean. Ensure all holes in basket are clear, ush basket
with water and replace in trap with large opening at pipe connection port (between
ribs provided). If basket is replaced backwards, the cover will not t on trap body.
To clean tranparent cover, use water and neutral soap only. Do not use solvents.
4. Clean and inspect lid o-ring; reinstall on trap.
5. Clean O’ring groove on trap body and replace cover. To help keep cover from
sticking, tighten hand tight only.
6. Prime pump (refer priming instructions).
Pump Service
Pump should only be serviced by qualied personel. For best results, use only genuine
ONGA service parts. Be sure to prime pump before starting.
Before removing clamp or trap cover:
1. SWITCH OFF POWER to pump before proceeding.
2. CLOSE SHUT-OFF VALVES in suction and discharge pipes.
3. RELEASE ALL PRESSURE from pump and piping system.
4. NEVER tighten or loosen covers, valves, nuts or bolts while pump is operating!
TROUBLESHOOTING
No lubrication or regular maintenance is needed beyond reasonable care and periodic
cleaning of strainer basket. When pump is not in use and there is a risk of frost, empty
it completely through the drain plug. If shaft seal is worn or damaged consult your
Pentair Water authorised service agent.
Symptom Cause Remedy
Low water pressure, low ow
from pump.
Suction leaks / lost prime.
Pump must be primed; make
sure that the pump casing and
strainer are full of water.
Refer priming instructions.
Make sure there are no leaks in
suction piping.
Make sure suctions pipe inlet
is well below the water level to
prevent pump from sucking air.
Suction lift of 3 to 6 metres
will reduce performance.
Suction lift of more than 6
metres will prevent pumping
and cause pump to lose prime.
In either instance, move the
pump closer (vertically) to
water source. Ensure that the
suction pipe diameter is
large enough.
Low voltage.
Check voltage at motor
terminals and at meter while
pump is running - this check
should be performed by a
qualied electrician only.
If voltage is low check for loose
connections or consult your
power company.
Clogged pipe / strainer /
impeller / lter system.
Ensure trap is not clogged with
debris; clean basket
and/or lter.

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SILENTFLO™Pool Pump Owner’s Manual SILENTFLO™ Pool Pump Owner’s Manual
TROUBLESHOOTING
Should problems persist, contact your nearest Pentair Water Service Agent.
Symptom Cause Remedy
Low water pressure, low ow
from pump.
Clogged pipe / strainer /
impeller / lter system.
Make sure that the impeller ius
not clogged. This should be
checked by qualied
personnel only.
Pump may be trying to push
too high a column of water.
If so, a higher pressure pump
is required.
No water coming from pump
(Pump is working). Air ingress to system.
Prime the pump. Check that
there are no air leaks in the
suction piping or ttings.
Ensure the strainer lid is
airtight and tted securely.
Pump does not work.
Motor termal overload tripped.
Check for required ventilation
and cooling. If temperature is
above the pump’s maximum
ambient, turn off pump until it
cools down.
No power at outlet.
Use another electricial
appliance that is known to
work to check power outlet.
Blown fuse / Circuit breaker. Check and call electrician
if necessary.
Motor burnt out due to voltage
spike or ooded by water. The motor may need replacing.
Pump running too slow. Motor capacitor may be
damaged.
Check line voltage; if less
that 90% or more that 106%
of rated voltage consult a
licensed electrician.
Water leaking from between
the casing and motor.
Casing bolts are not tightened
suciently; worn mechanical
seal requires replacing.
Switch off the power to the
pump. Tighten the casing bolts
or replace the mechanical
seal as required.
PARTS BREAKDOWN
11
12
13
19b
19c
19a
19
18
9
10
20
21
22
8
6
7
5
4
1
3
15
17
16
14

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SILENTFLO™Pool Pump Owner’s Manual SILENTFLO™ Pool Pump Owner’s Manual
Model and serial number of pumps must be given when ordering spare parts
PARTS BREAKDOWN
PURCHASED FROM:
PURCHASE DATE:
SERIAL NO:
MODEL NO:
IMPORTANT
Please attach your sales invoice/docket here as proof of purchase should warranty service be
required. Please do not return warranty form to Pentair Australia - Retain for your records.
Item Description Part No. Part No. Part No. Part No.
SF550100 SF750103 SF1100100 SF1500100
1MOTOR 801418 801418 801419 801420
2SLINGER 801429
3SCREW 3/8"UNC x 1" HEX SS See Motor Fasteners Kit
MOTOR FASTENERS KIT (INCLUDES ITEM 3 x4, 17x4) 801279 801279 801279 801279
4SEAL PLATE C3-184P C3-184P C3-184P C3-184P
5MECHANICAL SEAL 801428 801428 801428 801428
MECHANICAL SEAL (25 PACK) 800900 800900 800900 800900
6O-RING PUMP CASING U9-373 U9-373 U9-373 U9-373
7IMPELLER 801424 801425 801426 801427
8DIFFUSER See Diffuser and O-Ring Kit
9O-RING DIFFUSER See Diffuser and O-Ring Kit
10 SCREW 8/32" x 22mm SS PHILLIPS HEAD See Diffuser and O-Ring Kit
DIFFUSER & O-RING KIT (INCLUDES ITEM 8,9&10 x7) 801421 801422 801423 801423
11 LID (Before July 2010) C3-185P C3-185P C3-185P C3-185P
11 LID (After July 2010) 17307-0111S 17307-0111S 17307-0111S 17307-0111S
12 O-RING LID 35505-1440 35505-1440 35505-1440 35505-1440
13 BASKET C8-58P C8-58P C8-58P C8-58P
14 DRAIN PLUG & O-RING U178-920P U178-920P U178-920P U178-920P
15 NUT 3/8" SS See Pump Fasteners Kit
16 WASHER SPRING M10 SS See Pump Fasteners Kit
PUMP FASTENERS KIT See Pump Fasteners Kit
17 FLAT WASHER 3/8" x 3/4"x 18G See Pump Fasteners Kit or Motor Fasteners Kit
18 PUMP CASING See Pump Casing Assembly
PUMP CASING ASSEMBLY C176-71P C176-71P C176-71P C176-71P
19 BARREL UNION KIT (INCLUDES 19a, 19b & 19c) x2 required 801245K 801245K 801245K 801245K
19a Collar - Barrel Union 2" SLIP U11-196PS
19b NUT Barrel Union U11-200PS
19c ORING - Barrel Union 702192
20 BASE See Pump Base Kit
21 SCREW 5/16-14" x 1" See Pump Base Kit
22 MOTOR PAD See Pump Base Kit
BASE KIT (INCLUDES 20,21& 22) 801281 801281 801281 801281

L300115 B - 0320
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