Wilo SP Series User manual

Wilo SP Series
Submersible Sump Pumps ECC
ECC22-15.33
ECC29-15.50
Installation and operating instructions

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1. PREINSTALLATION CHECK
Inspect this pump before it is used. Occasionally, pumps can be damaged during shipping. If the pump or
components are deformed, cracked, or there is an leakage, call us Toll Free at: 866-945-6872, or e-mail:
[e-mail]. Monday – Friday between 8 a.m. – 6 p.m., EST. Do not return the pump to the store.
ATTEMPTING TO USE A DAMAGED PUMP can result in personal injury or death!
2. DESCRIPTION
This Wilo submersible sump pump is designed for home sump applications. The pump is built with overload
thermal protections and auto reset. The pump is equipped with a 10’ 3-prong grounding-type power cord and
tethered float switch. This pump operates automatically. Ball bearings on motor shafts never need lubrication.
Pump only water with this pump. This pump has not been tested or approved for use in swimming pools or in salt-
water marine areas. It is also not engineered to be run continuously as a “fountain” or “waterfall” pump.
Do not pump flammable or explosive liquids such as oil, gasoline, kerosene, ethanol, etc. Do not use in
the presence of flammable or explosive vapors. Using this pump with or near flammable liquids can
cause explosion or fire, resulting in serious personal injury and/or property damage.
3. SPECIFICATIONS
Power supply required ……………………………………………………………115V, 60 HZ
Water temperature range …………………………………………………………Max.77°F (25°C)
Individual branch circuit required ……………………………………………… 15 Amp minimum
Discharge Connection ……………………………………………1-1/2” FNPT / 1-1/4” FNPT (with adaptor)
Motor duty ………………………………………………………………………Continuous
Power cord………………………………………………………………………SJTW, 18AWG/3C, 10ft
NOTICE: This unit is not designed to be used to pump salt water or brine! Use with salt water or brine will
void warranty.
RNING WARNING
4. CONSTRUCTION
Motor housing ……………………………………………………………………… Cast Iron
Motor cap …………………………………………………………………………… Cast Iron
Volute ………………………………………………………………………………...Cast Iron
Impeller ………………………………………………………………………………Reinforced thermoplastic
5. PERFORMANCE
Model
HP
GPM of Water @ Total Feet of Head
Max. Head
0
5ft.(1.5m)
10ft.(3m)
15ft.(4.6m)
20ft.(6.1m)
ECC22-15.33
1/3
53
47
39
27
8
22ft.
ECC29-15.50
1/2
60
53
47
37
25
26ft.
6. GENERAL SAFETY INFORMATION
This pump is made of high-strength, corrosion-resistant materials. It will provide trouble-free service for a long
time when properly installed, maintained, and used. However, inadequate electrical power to the pump, dirt, or
debris may cause the pump to fail. Please carefully read the manual and follow the instructions regarding common
pump problems and remedies.

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The following are the general safety requirements. Failure to follow them could cause serious personal injury
and/or property damage.
For your protection and safety, always follow these general rules with pumps:
Always disconnect the pump from its power source before installing, inspecting, maintaining,
or repairing.
Do not stand in water when the pump is connected
Do not touch the pump housing while it is operating, as the pump may be HOT and can cause
serious skin burns.
Do not disassemble the motor housing. The motor has NO repairable internal parts, and
disassembling may cause water leakage or dangerous electrical wiring issues.
Do not lift pump by power cord or switch cord.
Additional Safety Precautions
1. Know the pump applications, limitations, and potential hazards.
2. Make certain the electrical power source is adequate for the requirements of the pump.
3. ALWAYS disconnect the power to the pump before servicing.
4. Release all pressure within system before servicing any component.
5. Drain all water from system before servicing.
6. Secure discharge line before starting pump. An unsecured discharge line will whip, possibly causing
personal injury and/or property damage.
7. Secure the pump on a solid base to keep the pump vertical and above mud and sand during operation to
maximize pumping efficiency and prevent clogging and premature pump failure.
8. Check that all pipe connections are tight to minimize leaks.
9. Connect the pump DIRECTLY to a grounded, GFCI outlet.
10. Extension cords may not deliver sufficient voltage to the pump motor. Extension cords present a life
threatening safety hazard if the insulation becomes damaged or the connection ends fall into water.
11. Make certain the electrical circuit to the pump is protected by a 15 Amp or larger fuse or circuit breaker.
12. Periodically inspect the pump and system components to be sure the pump inlets are free of mud, sand,
and debris. DISCONNECT THE PUMP FROM THE POWER SUPPLY BEFORE INSPECTING.
13. Do not handle pump or pump motor with wet hands or when standing on wet or damp surface, or in water.
Wear safety glasses at all times when working with pumps.
14. Follow all electrical and safety codes, particularly the National Electrical Code (NEC) and in the workplace,
the Occupational Safety and Health Act (OSHA).
15. This unit is designed only for use on 115 volts (single phase), 60 Hz, and is equipped with an approved 3-
conductor cord and 3-prong grounded plug. DO NOT REMOVE THE GROUND PIN UNDER ANY
CIRCUMSTANCES. The 3-prong plug must be directly inserted into a properly installed and grounded 3-
prong, grounding-type receptacle. Do not use this pump with a 2-prong wall outlet. Replace the 2-prong
outlet with a properly grounded 3-prong receptacle (a GFCI outlet) installed in accordance with the
National Electrical Code and local codes and ordinances. All wiring should be performed by a qualified
electrician.
16. Protect the electrical cord from sharp objects, hot surfaces, oil, and chemicals. Avoid kinking the cord. Do
not use damaged or worn cords.

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7. INSTALLATION
Always use the handle to lift the pump. Never use the power cord to lift the pump. To avoid skin burns,
unplug the pump and allow time for it to cool after periods of extended use.
1. Install the pump in sump pit with minimum diameter of 18" (46cm).Sump pit depth should be 30" (76cm).
Construct sump pit of tile, concrete, steel, or plastic. Check local codes for approved materials and for proper
installation.
2. Clean sump pit of small stones, gravel, or mud. Secure the pump on a level, solid base. Do not suspend the
pump by the discharge pipe, hose, or power cord.
3. Install discharge plumbing and a check valve in the vertical pipe to prevent flow backwards through the
pump when it shuts off. Use rigid plastic pipe and wrap threads with Teflon tape, NOT pipe joint compound.
Screw pipe into pump hand tight plus 1-1/2 turns.
4. Drill a 1/8” hole in discharge pipe about 1"-2” (2.5 - 5.1cm) above pump discharge connection (but below
check valve) to prevent air-locking the pump.
5. To reduce motor noise and vibrations, a short length of rubber hose can be connected into discharge line
near pump using suitable clamps.。
6. After the installation of the necessary plumbing, check valve, and rubber hose, follow the glue
manufacturer’s instructions for safety precautions and curing time. The pump is ready for operation.
7. Pump is designed for 115 V., 60Hz, operation and requires a minimum 15 amp individual branch circuit.
8. Check the pump by filling the sump pit with water and observe the pump’s operation through one
complete cycle. Make sure the pump cannot move in the sump pit and the float switch moves freely up
and down.
8. OPERATION
Do not handle this pump or plug in or unplug this pump with wet hands or while standing in water,
unless you are certain all power has been turned off to the pump. Remember, the pump should be
connected only to a properly grounded, GFCI outlet.

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Running the pump without sufficient water will damage the pump and void the pump’s warranty.
1. Make certain the pump is submerged in water. Running the pump dry can damage the shaft seal.
2. Plug the pump power cord plug into the piggyback switch plug outlet, and then plug the switch plug into a
115V GFCI power outlet. When the float switch moves up over the pump top the pump will start operating.
The water will be pumped out. When the water lowers to a certain level, the float switch will turn off the
pump. This pump also can operate manually if the switch fails. Directly plug the power cord plug into a
115V GFCI power outlet. The pump will pump water out.。
3. The motor is equipped with an automatically resetting thermal overload protector. If the motor gets too
hot, the overload protector will shut off the pump before it is damaged. When the motor has cooled
sufficiently, the overload protector will reset, and the motor will restart.
NOTICE: If the overload protector stops the pump repeatedly, disconnect the power from the pump and
allow the pump cool to the safety temperature then check to find the problem. Low voltage, a long
extension cord, clogged impeller, screen blocked by debris, or water that is too hot can cause motor
overheating.
9. Maintenance
•Periodically unplug the pump, making certain your hands are dry, and you are not standing in water. When the
power is disconnected, inspect the pump inlets and remove all debris, then plug pump back into the grounded
(GFCI) outlet.
•To clear a pump clogged with debris, first, UNPLUG PUMP from electrical power. Then referring to Picture 2
below, unscrew the stainless screws #5, then the diffuser #4, and the seal gasket #3. Use a flathead
screwdriver to hold the shaft #1 then turn the impeller #2 counter-clockwise to release the impeller. Remove
debris from around the shaft and on and under the impeller. Then reassemble the impeller, gasket, volute, See
Picture 2.

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10. TROUBLESHOOTING
Do not disassemble the motor housing. This pump has NO repairable internal parts, and disassembly may cause an oil
leak or dangerous electrical wiring conditions.
Table2 Troubleshooting Common Pump Problems
Problem
Possible Cause
Corrective Action
Pump does not start
or run
1. Blown fuse
2. Tripped breaker
3. Plug disconnected
4. Corroded plug
5. Thermal overload
6. Float switch failed
7. Motor failed
1. Replace fuse
2. Reset breaker
3. Secure plug
4. Clean plug prongs
5. Unplug for 30 minutes, then plug in
6. Directly plug the power cord into the power source
outlet. If the pump works, the switch must be
faulty. Replace switch.
7. Directly plug the power cord (skip switch) into the
power source outlet. If the pump doesn’t work or
motor is humming, the motor must be faulty.
Replace pump.
Pump operates but
pumps little or no
water
1. Screen blocked
2. Debris caught in the impeller or
discharge
3. Impeller broken
1. Clean screen
2. Remove debris
3. Replace impeller
Pump starts and
stops too often
1. Backflow of water from piping or
check valve leaking
2. Tangled switch
3. Float Switch failed
1. Install a check valve or replace the check valve
2. Reposition the pump and make sure the switch
moves freely
3. Replace switch
Pump will not shut
off
1. Tangled switch
2. Faulty float switch
3. Float obstructed
1. Reposition the pump and make sure the switch
moves freely
2. Replace switch
3. Remove obstruction
No.
Description
Qty.
1
Shaft
1
2
Impeller
1
3
Gasket
1
4
Diffuser
1
5
Screw M5X12
10
6
Screw M5X16
2
7
Tether float switch
1
8
Hose adaptor
1

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WILO USA LLC
Tel: [phone]
Fax: [phone]
Email: [e-mail]
Web: www.wilo-usa.com
Wilo Canada Inc.
Tel: [phone]
Fax: [phone]
Email: [e-mail]
Web: www.wilo-canada.com
Wilo Mexico
Tel: + 52 55 5586 3209
Fax: + 52 55 5586 3209
Email: [e-mail]
Web: www.wilo-mexico.com