Sta-Rite DC233110M Installation Manual

Individual *Switch Setting

Model Motor Full Branch Circuit Cord in inches (mm)

Number HP Load Amps Required (Amps) Length

On Off

DC233110T 1/3 9.8 15 10' 13" (330) 4" (102) DC233110V 1/3 9.8 15 10' 7" (178) 2" (51) DC233110M 1/3 9.8 15 10' – – DC233120T 1/3 9.8 15 20' 13" (330) 4" (102) DC233120V 1/3 9.8 15 20' 7" (178) 2" (51) DC233120M 1/3 9.8 15 20' – – DC233130T 1/3 9.8 15 30' 13" (330) 4" (102) EC240110M 4/10 12.5 15 10' – – EC240110T 4/10 12.5 15 10' 14" (356) 5" (127) EC240120M 4/10 12.5 15 20' – – EC240120T 4/10 12.5 15 20' 14" (356) 5" (127) DC250110T 1/2 12.5 15 10' 13" (330) 4" (102) DC250110V 1/2 12.5 15 10' 7" (178) 2" (51) DC250110M 1/2 12.5 15 10' – – DC250120T 1/2 12.5 15 20' 13" (330) 4" (102) DC250120V 1/2 12.5 15 20' 7" (178) 2" (51) DC250120M 1/2 12.5 15 20' – –

EC2 and DC2 Series

Submersible Sump/Effluent Pumps

INSTALLATION, OPERATION, & PARTS MANUAL

SAFETY INFORMATION

Carefully read and follow all safety instructions in this manual or on pump.

This is the safety alert symbol. When you see this

symbol on your pump or in this manual, look for one of the following signal words and be alert to the potential for personal injury!

warns about hazards that will cause serious

personal injury, death or major property damage if ignored.

warns about hazards that can cause serious

personal injury, death or major property damage if ignored.

warns about hazards that will or can cause

minor personal injury or property damage if ignored. The word NOTICE indicates special instructions which are

important but not related to hazards.

DESCRIPTION

These Submersible Sump Pumps are designed for home sumps. The unit is equipped with a 3-prong grounding-type power cord. The shaded-pole motor is oil filled and sealed for cooler running. Upper sleeve/lower ballbearing on the motor shaft never need lubrication. Automatic reset thermal protection.

SPECIFICATIONS

Power supply required........................................115V, 60 HZ.

Motor Duty ............................................................Continuous

Liquid Temp. Range ..........................32°F to 130°F (0°-54°C)

Individual Branch DC233 Series...........................15 Amps

Circuit Required: EC240 Series...........................15 Amps

DC250 Series...........................20 Amps

Discharge Adapter (DC and EC Series)................1-1/2" NPT

PERFORMANCE

293 Wright Street • Delavan, WI 53115

GPM (LPM) AT TOTAL FEET (m)

5101520

Model (1.5m) (3m) (4.6m) (6.1m)

CAPACITY GALLONS(L)/MINUTE

DC233 48 40 29 15 24 Ft. Series (182) (151) (110) (57) (7.3m)

EC240 62 53 46 38 32 Ft. Series (235) (201) (174) (144) (9.8m)

DC250 62 53 46 38 32 Ft. Series (235) (201) (174) (144) (9.8m)

No flow

at height

shown

below

MOTOR, SWITCH, & CORD SPECIFICATIONS

GENERAL SAFETY INFORMATION

Electrically powered sump pumps normally give many years of trouble-free service when correctly installed, maintained, and used. However, unusual circumstances (interruption of power to the pump, dirt/debris in the sump, flooding that exceeds the pump’s capacity, electrical or mechanical failure in the pump, etc.) may prevent your pump from functioning normally. To prevent possible water damage due to flooding, consult your dealer about installing a secondary sump pump, a DC backup sump pump, and/or a high water alarm. See the “Troubleshooting Chart” in this manual for information about common sump pump problems and remedies. For more information, see your dealer or call customer service at 1-888-782-7483.

1. Know the pump application, limitations, and potential hazards.

2. Disconnect the power before servicing.

3. Release all pressure within the system before servicing any component.

4. Drain all water from the system before servicing.

5. Secure the discharge line before starting the pump. An unsecured discharge line will whip, possibly causing personal injury and/or property damage.

6. Check the hoses for a weak or worn condition before each use. Make certain all connections are secure.

7. Periodically inspect the sump, pump and system components. Keep free of debris and foreign objects. Perform routine maintenance as required.

8. Provide a means of pressure relief for pumps whose discharge line can be shut-off or obstructed.

9. Personal Safety: a. Wear safety glasses at all times when working with

pumps.

b. Keep the work area clean, uncluttered and properly

lighted – replace all unused tools and equipment. c. Keep visitors at a safe distance from work area. d. Make the workshop child-proof – with padlocks, mas-

ter switches, and by removing starter keys.

10. When wiring an electrically driven pump, follow all electrical and safety codes that apply.

11. This equipment is only for use on 115 volt (single

phase) and is equipped with an approved 3-conductor cord and 3-prong, grounding-type plug.

Electrical shock hazard. Can burn or

kill. To reduce risk of electric shock, pull plug before ser-

vicing. Pump is supplied with a grounding conductor and grounding-type attachment plug. Be sure it is connected only to a properly grounded grounding-type receptacle.

Where a 2-prong wall receptacle is encountered, it must be replaced with a properly grounded 3-prong receptacle installed in accordance with codes and ordinances that apply.

This pump has not been investigated for use in swimming pool areas.

12. All wiring should be performed by a qualified electrician.

13. Make certain the power source conforms to the requirements of your equipment.

14. Protect the electrical cord from sharp objects, hot surfaces, oil, and chemicals. Avoid kinking the cord. Replace or repair damaged or worn cords immediately.

15. Do not touch an operating motor. Modern motors are designed to operate at high temperatures.

16. Do not handle the pump or pump motor with wet hands or when standing on wet or damp surface, or in water.

Electrical shock hazard. Can burn or kill. If

your basement has water or moisture on floor, do not walk on wet area until all power has been turned off. If shut-off box is in basement, call electric company or hydro authority to shut-

off service to house, or call your local fire department for instructions. Remove pump and repair or replace. Failure to follow this warning can result in fatal electrical shock.

17. Vent the sewage or septic tank according to the local codes.

18. Do not install the pump in any location classified as hazardous by the National Electric Code, ANSI/NFPA 70-1984 or the Canadian Electrical Code.

INSTALLATION

1. Install the pump in a sump pit with a minimum diameter of 10" (254mm) for models equipped with vertical switches and 14" (356mm) for tethered float switch models. The sump depth should be 15" minimum (381mm). Construct the sump pit of tile, concrete, steel or plastic. Check the local codes for approved materials.

2. NOTE: When installing the vertical switch, the rod stop (Key No. 1F, page 4) must not be pushed up farther than the bottom nib on the float rod. Pushing it any farther up the rod will cause the switch to hang up on the pump discharge and will damage the pump.

3. The pump should not be installed on clay, earth or sand surfaces. Clean the sump pit of small stones and gravel which could clog the pump. Keep the pump inlet screen clear.

4. Install the pump in the pit so that the switch operating mechanism has maximum possible clearance.

5. Install the discharge plumbing. When using rigid pipe, use plastic pipe. Wrap the threads with Teflon tape

Screw the pipe into the pump hand tight +1 – 1-1/2 turns. NOTICE: Do not use ordinary pipe joint compound on plastic pipe. Pipe joint compound can attack plastics and damage the pump.

Risk of flooding. If a flexible discharge

hose is used, make sure the pump is secure in the sump to prevent movement. Failure to secure the pump may allow pump movement, switch interference and prevent the pump from starting or stopping.

6. To reduce motor noise and vibrations, a short length of rubber hose (e.g. radiator hose) can be connected into the discharge line near the pump using suitable clamps.

7. Install an in-line check valve to prevent backward flow through the pump when the pump shuts off.

8. Power Supply: The pump is designed for 115 V., 60 Hz., operation and requires a minimum 15 amp individual branch circuit (refer to Motor, Switch and Cord Specifications chart, Page 1). Both the pump and switch are supplied with 3-wire cord sets with grounding-type plugs. The switch plug is inserted directly into the outlet and the pump plug inserts into the opposite end of the switch plug.

E.I. DuPont de Nemours and Company Corporation.

Figure 1

Hazardous voltage. Can shock, burn or

kill. The pump should always be electrically grounded to

a suitable electrical ground such as a grounded water pipe or a properly grounded metallic raceway, or ground wire system. Do not modify the cord or plug or cut off the round ground pin.

9. If the pump discharge line is exposed to an outside subfreezing atmosphere, the portion of the line exposed must be installed so any water remaining in the pipe will drain to the outfall by gravity. Failure to do this can cause the water trapped in the discharge to freeze which could result in damage to the pump.

10. After the piping and check valve have been installed, the unit is ready for operation.

11. Check the operation by filling the sump with water and observing pump operation through one complete cycle.

Risk of Flooding. Failure to make this

operational check may lead to improper operation, premature failure, and flooding.

OPERATION / MAINTENANCE

Risk of electrical shock. Can burn or cause

death. Do not handle a pump or pump motor with wet hands

or when standing on a wet or damp surface, or in water. Before attempting to check why unit has stopped operating,

disconnect power from unit.

Risk of fire and explosion. Can cause

severe injury, property damage or death. Do not use in

explosive atmospheres. Pump water only with this pump.

1. The shaft seal depends on water for lubrication and cooling. Do not operate the pump unless it is submerged in water as the seal may be damaged if allowed to run dry.

2. The motor is equipped with an automatic reset thermal protector. If the temperature in the motor should rise unduly, the switch will cut off all power before damage

can be done to the motor. When the motor has cooled sufficiently, the switch will reset automatically and restart the motor. If the protector trips repeatedly, the pump should be removed and checked as to cause of difficulty. Low voltage, long extension cords, clogged impeller, very low head or lift, etc., could cause cycling.

3. The pump will not remove all water. If a manually operated pump is operating and suddenly no water comes out of the discharge hose, shut the unit off immediately. The water level is probably very low and the unit has broken prime.

NOTICE: Do not change the tether length of the float switch. The float must be able to swing through its complete arc without interference.

AIRLOCKS

When a pump airlocks, it runs but does not move any water. An airlock will cause the pump to overheat and fail.This pump has a built in anti-airlock hole. See the exploded view on the repair parts page for the location of the hole. Leakage from the anti-airlock hole is normal.

If you suspect an airlock, unplug the pump, clean out the anti-airlock hole with a paper clip or a piece of wire, and restart the pump.

3-1/2"

(89 mm)

3649 0200

SYMPTOM PROBABLE CAUSE(S) CORRECTIVE ACTION

Pump won’t start Blown fuse. If blown, replace with a fuse of proper size. or run. Low line voltage. If the voltage is under the recommended minimum, check the size

of the wiring from the main switch on the property. If OK, contact

power company or hydro authority. Defective motor. Replace the pump. Defective float switch. Replace the float switch. Impeller. If the impeller won’t turn, remove the lower pump body and locate

the source of the binding. Float is obstructed. Remove the obstruction.

Pump starts and stops Backflow of water from Install or replace the check-valve. too often. piping.

Faulty float switch. Replace the float switch.

Pump won’t shut off. Defective float switch. Replace the float switch.

Restricted discharge Remove the pump and clean the pump and piping. (obstacle in piping).

Float obstructed. Remove the obstruction.

Pump operates but Low line voltage. If the voltage is under the recommended minimum, check the size delivers little or no of the wiring from the main switch on the property. If OK, contact water. power company or hydro authority.

Something is caught in Clean out the impeller. impeller.

Anti-airlock hole is plugged. Turn off the pump, clean out the anti-airlock hole, and restart pump.

TROUBLESHOOTING CHART

Figure 2 – Float Switch Tether Length, Models DC233110T, DC233120T, DC233130T, EC240110T, EC240120T, DC250110T and DC250120T.

DC233110T, DC233120T, DC233130T, DC233110V, DC233120V, DC233110M, DC233120M, EC240110T, EC240110M, EC240120T, EC240120M, DC250110T, DC250120T, DC250110V, DC250120V, DC250110M, DC250120M

2 3

4 5

7A 7B

12A 12B

anti-airlock hole

+ 8 hidden pages