Little Giant JP-050-C Manual Del Usuario página 7

6. Modify the existing plumbing as required to allow for installation of the pump system.
IMPORTANT: Never install a check valve between the pump and the tank.
• The pump suction is 1¼ inch and the discharge is 1 inch FNPT fittings. Install adapters as needed.
• Seal and tighten the threads of the suction and discharge openings on the pump with PTFE tape
or thread compound. Do not over-tighten the connections.
• Make sure all joints are airtight.
• Ensure the piping is as short and direct as possible.
• Refer to "Typical Installations" on page 3
IMPORTANT: Remove any burrs or shavings from cutting the pipes.
7. Install a pressure relief valve near the discharge rated to handle pump flow at 75 psi.
• Locate the relief valve near the discharge of the pump and in an area with adequate drainage.
• Orient the relief valve so that it will not spray toward the pump or other electrical devises.
IMPORTANT: For well point installations, also attach a restrictive valve prior to the tank.
8. Add piping and coupling to join up to the service line.
IMPORTANT: Ensure the friction loss will never exceed 20 ft (6 m) of head.
9. For systems with a tank, make sure the pre-charge pressure of the tank is 28 psi.
10. Add unions and valves to allow system service without disabling the complete water supply.
OPERATION
Risk of damage to pump or other equipment.
• Pumping sand or other abrasives can damage the pump and void the warranty.
• If pump is run dry, it may damage pump and void the warranty.
1. Open the discharge valve on the service line and nearby tap to monitor the water flow.
2. Remove the vent and priming plugs with a wrench.
3. Fully open the control valve.
4. Pour approximately 1 quart (1 liter) of clean water for every 3 feet (1 m) of suction line through the
priming plug opening until water flows out of the vent hole.
5. Insert and hand-tighten the vent plug.
6. Fill the pump until water flows out of the priming hole.
7. Insert and hand-tighten the priming plug.
8. Start the pump.
• If a tap is visible, you may see a short discharge of water for about 5 to 10 seconds.
9. Run the pump for 2 minutes and then shut it off.
10. Repeat steps 2 - 9 for every 5 feet (1.5 m) of suction line until the water is pumping continuously.
• For systems with an in-line check valve, priming will need to be repeated about 2 - 6 times.
• If the pump does not draw water within 8 tries, shut it off and check the suction line for leaks.
11. Firmly tighten the vent and priming plugs with a wrench.
for suggested routings.
OPERATION
7