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Explains the safety alert symbol and different hazard warning levels like DANGER, WARNING, and CAUTION.
Details about electrical hazards, capacitor voltage warnings, and proper wiring practices.
Steps for installing a new pump when replacing an old one, including compatibility checks.
Instructions and notes for deep well piping configurations, including pipe types and ejector placement.
Specific guidance for installing plastic pipes in double pipe systems, emphasizing Teflon tape use.
Guidelines for installing ejectors in single pipe deep well systems, including pipe material and coupling types.
Information regarding correct discharge pipe sizing for pumps based on run length.
Guidance on installing pressure tanks to maintain water pressure and prevent hammering.
Instructions for ensuring airtight and watertight seals on suction pipe joints using Teflon tape.
Explains correct wiring practices, voltage conversion, and grounding requirements for motors.
Step-by-step guide for connecting the pump's electrical system, including grounding and power supply.
Step-by-step instructions on how to properly prime the pump before operation to ensure water flow.
Methods for dealing with wells that produce gaseous water to ensure delivery of gas-free water.
Addresses air control issues in flowing wells and recommends pre-charged tanks for better operation.
Detailed steps for taking apart and reassembling the pump for service, including impeller removal.
Step-by-step instructions for cleaning and installing a new shaft seal, ensuring proper seating.
Specific procedures for disassembling and assembling single-stage pump models, including capacitor removal.
Guide to installing a new seal, ensuring proper seating and alignment of the sealing surfaces.
Addresses common motor problems like not running, overheating, or tripping overload.
Diagnoses issues with no water delivery, low capacity, or pump not shutting off.
Identifies causes for frequent pump cycling, such as leaks or low air charge.
Explains reasons for air spurts, including priming issues, suction leaks, or gaseous wells.
The Teel One, Two, and Three Stage Vertical Jet Pumps, including Model Nos. 3P740A, 4P037, 4P038, 4P039, and 4RJ96A, are designed for deep well installations. These pumps are capable of operating in wells with water levels up to 300 feet deep, depending on the specific pump and ejector package used. Each pump is equipped with a capacitor start motor and a pressure switch preset to a 30-50 psi range, with the motor operating at 3450 RPM.
The primary function of these vertical jet pumps is to draw water from deep wells. In a deep well installation, an ejector package is installed within the well, which works in conjunction with the pump to lift water from significant depths. The pump's capacitor start motor provides the necessary power, and the pressure switch automatically controls pump operation to maintain water pressure within the specified range.
Proper installation is crucial for optimal performance. The pump must be matched to the correct ejector and well depth, as detailed in the performance charts. Long pipe runs and numerous fittings should be avoided to minimize friction and maximize flow; therefore, the pump should be located as close to the well as possible. The well must be clear of sand, as sand can plug the pump and void the warranty. Protection against freezing is essential, as freezing can damage pipes and the pump, also voiding the warranty. All pipes and the foot valve must be clean and in good condition, and there should be no air pockets or leaks in the suction pipe. Teflon tape or Plasto-Joint Stik should be used to seal pipe joints. The flow into the well must at least equal the flow out through the pump. Unions installed near the pump and well facilitate servicing.
In double pipe installations, the larger pipe serves as the suction pipe, and the smaller pipe is the drive pipe. Plastic pipe is recommended for its light weight and ease of handling during installation and removal. Teflon tape should be used on all male threads to prevent air leaks. The ejector's nozzle and venturi openings must be clean. The casing adapter uses a gasket between itself and the pump flange. The well casing acts as the drive pipe, and the suction pipe draws water from the well. The ejector should be set 10 to 20 feet below the lowest water level with the pump running, if possible, but always at least five feet from the bottom of the well. Locating lugs on the adapter flange and pump base must be aligned to ensure proper piping alignment.
Single pipe installations require galvanized steel pipe, a leather packer-type ejector with a built-in foot valve, turned couplings, and a well casing adapter. The ejector is connected to the first length of pipe using pipe joint compound sparingly on male threads. Special turned couplings are used to increase water flow. The pipe should be filled with water as each length is added to check for leaks. The ejector should be positioned at the proper depth, similar to double pipe installations. To properly seat the cup seals, the assembly should be moved up and down slightly after positioning, allowing water pressure to soak the seals, which typically seal within 2-3 hours.
If the discharge pipe size is increased, a reducer should be installed in the pump discharge port. The pipe size should not be increased in stages. For runs up to 100 feet, use the same size as the pump discharge port. For runs between 100 and 300 feet, increase the pipe size by one. For runs between 300 and 600 feet, increase the pipe size by two.
The pressure tank provides a water reservoir and maintains air pressure to prevent pipe hammering.
Hazardous voltage is present, so disconnect power before working on the pump, motor, pressure switch, or wiring. The motor terminal board and pressure switch connections must match the line voltage. Dual-voltage motors are factory-wired for 230 volts but can be reconnected for 115 volts if necessary. All wiring must comply with the National Electrical Code, Canadian Electrical Code, and local codes. A solid copper ground wire, at least as large as the power supply wires, must be connected first, linking the pressure switch to the motor and then to a grounded lead in a service panel, an underground water pipe, a well casing, or a ground electrode.
Never run the pump dry, as this can cause overheating, damage the seal, and lead to burns. Open water system faucets before priming. Remove the pressure gauge, close the regulator valve (turn clockwise), and fill the pump and suction pipe with water. Replace and tighten the pressure gauge. If a priming tee and plug are present for a long horizontal run, fill the suction pipe through it. Start the pump; pressure should build rapidly to 50 psi or more. If no pressure or water, repeat priming two or three times. If still no water, check that the suction pipe is in the water and has no leaks. Air leaks can occur even where water doesn't leak out, so ensure all joints are tight.
Once the unit has primed and pressure stabilized, slowly open the regulator valve (turn counterclockwise) until the pressure falters (gauge needle flutters, pump becomes noisy). Then, close the regulator valve slightly until pressure stabilizes; this setting provides maximum flow. The pump may draw the well down, potentially losing prime; if so, close the regulator valve until pressure is stable throughout the pumping cycle, then close faucets and allow the pump to pressurize and shut off. Check the system by alternately opening and closing faucets. In some deep well operations, the regulator valve may be completely open without pressure faltering.
For wells with gases, suspend a pipe, closed at the bottom and open at the top, around the suction pipe inlet. This allows gases to rise in the well casing, ensuring gas-free water is drawn into the pump. The well must be vented to the outside.
For flowing wells or wells with little drawdown, a pre-charged tank (which does not need air control) is recommended for air control.
General| Model | 3P740A |
|---|---|
| Category | Water Pump |
| Inlet Size | 1 inch |
| Outlet Size | 1 inch |
| Frequency | 50 Hz |
| Power | 750W |
