INITIALSTART-UP:

1.Relieve all system pressure and open all air bleeders on total hydraulic system prior to starting the pump. See filter owner's manual.

2.Ensure that all fittings, clamps, closures and couplings are tight and in accordance with equipment manufacturer's recommendations.

3.Open suction and discharge valving to allow free flow of water. On flooded suction pumps with strainer pot the water source is higher than the pump. The water will flow into the pump strainer pot and the pot will fill with water. On pumps without strainer pot the water will fill the pump housing.

4.On non-flooded suction systems the pot lid clamp will have to be removed by rotating the lid counter-clockwise to a stop and lifting the clamp.

5.The pump strainer pot should be filled with water up to suction opening on the pump.

6.It is good practice to lubricate the lid o-ring with silicone lubricant each time the lid is removed. The o-ring should be cleaned and inspected every time the strainer pot is opened.

7.The lid should be replaced on the pot by aligning the clamp ears with the slots on the strainer pot. Press the lid and clamp down and twist the clamp clockwise to engage.

8.The pump is now ready to prime. Turn the motor on and the pump will prime. The time to prime will depend on the suction lift and the distance and size of suction piping. Turn off power if the pump does not prime within five minutes and refer to the Troubleshooting Guide section of this manual.

NOTICE

Never run the pump dry. Running the pump dry may damage the seals and pump housing. This could allow water leakage and flooding.

SECTION III. PUMP OPERATION AND MAINTENANCE

WARNING

DO NOT open the strainer pot if pump fails to prime or if pump has been operating without water in the strainer pot. Pumps operated in these circumstances may experience a build up of vapor pressure and may contain scalding hot water. Opening the pump may cause serious personal injury. In order to avoid the possibility of personal injury, make sure the suction and discharge valves are open and strainer pot temperature is cool to touch, then open with extreme caution.

The strainer basket in the pump should be inspected and cleaned twice each week. Remove the clear lid and the basket, and clean debris from basket. Inspect the lid o-ring; if damaged, replace. The pump seal requires no lubrication. Refer to motor service centers for motor servicing.

SECTIONIV. DISASSEMBLY/ASSEMBLY PROCEDURE FOR SEAL REPLACEMENT

WARNING

Never work on pump while it is running or power is still connected. Hazardous voltage can cause severe or fatal injury.

1.Stop pump and relieve system pressure.

2.Disconnect motor power at Circuit Breaker.

3.Close suction and discharge valves.

P/N 350039 Rev. C 8-24-06

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Pentair 4HP-HD - 3' STD, 4HP-VD - 3' STD service manual Initialstart-Up, Section III. Pump Operation and Maintenance
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4HP-VD - 3' STD, 4HP-HD - 3' STD specifications

Pentair is a leading provider of innovative water solutions, and its 4HP-HD and 4HP-VD series submersible pumps showcase the company's commitment to efficiency and reliability in water management applications. These pumps are designed to deliver superior performance for a variety of needs, from residential to commercial applications.

The Pentair 4HP-HD - 3' STD and 4HP-VD - 3' STD pumps are engineered to operate effectively at higher head conditions. With a robust 4 horsepower motor, these pumps are capable of handling demanding tasks, delivering quick and effective water transfer. The standard model features an extensive set of capabilities that make it ideal for various water management functions, including dewatering, effluent transfer, and irrigation tasks.

One of the main features of the Pentair 4HP-HD and 4HP-VD series is their durable construction. These pumps are designed with high-quality materials that withstand the harshest conditions, ensuring a long operational lifespan. In addition, they are fitted with a silicon carbide mechanical seal to provide superior protection against wear and contamination, further enhancing their reliability.

The technology behind these pumps incorporates advanced hydraulic design. The impeller is constructed to optimize flow rates while minimizing turbulence, which effectively enhances efficiency and reduces energy consumption during operation. The pumps maintain a consistent performance level, thanks to their efficient cooling systems which prevent overheating even during prolonged use.

The Pentair 4HP-VD model introduces variable speed technology, allowing for greater control over flow rates and pressure. This feature is particularly beneficial in applications where demand fluctuates, providing operators the ability to adjust the pump’s performance according to specific requirements. Users can expect reduced energy costs and prolonged equipment life as a result of this advanced technology.

Both the HD and VD models include features such as automatic reset overload protection, ensuring safe operations and preventing damage to the pump in cases of power issues. The intuitive design also allows for easier installation and maintenance, with a user-friendly interface that ensures operators can quickly manage and monitor performance.

In summary, the Pentair 4HP-HD - 3' STD and 4HP-VD - 3' STD pumps exemplify Pentair’s dedication to delivering high-performance water solutions. With their robust construction, advanced hydraulic design, and innovative variable speed technology, these pumps are ideal choices for those seeking reliable and efficient water management solutions.
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