HAYWARD IS-3000VHC-18 Super II Pump Owner’s Manual

HAYWARD IS-3000VHC-18 Super II Pump

Your Hayward self-priming centrifugal pump has been quality-built and engineered to give you many years of efficient, dependable, corrosion-free service. The advanced design reduces operation and maintenance to simple, common-sense procedures.

GENERAL TIPS ON PUMP INSTALLATION

Locate the pump as close to the pool as practical and run the suction line as direct as possible. This cuts down on friction loss through pipe and fittings. Never overtighten pipe connections – use only pipe sealants formulated specifically for Plastics, i.e. Teflon Tape, Permatex No. 2, etc.

The suction line should have a continuous slope from the lowest point in the line. Make sure the suction joints are tight. The suction pipe should be as large or larger than the discharge pipe. Damp, non-ventilated locations should be avoided. Motors require free circulation of air to aid in cooling.

Ensure the electrical supply agrees with motor voltage, phase, and cycle, and that wire size is adequate for the HP/KW rating and distance from the power source. The motor must always be properly grounded. Electrical circuits should be protected by proper size ground fault circuit interrupter (GFCI). Electrical wiring should be performed by qualified personnel and must conform to local codes and regulations.

STARTING AND PRIMING INSTRUCTIONS

• Fill the strainer/housing with water to the suction pipe level. Never operate the pump without water. Water acts as a coolant and lubricant for the mechanical shaft seal.
• Open all suction and discharge valves, as well as air bleed (if available) on the filter. (The air that is to be displaced from the suction line must have someplace to go.)
• Turn on the power and allow a reasonable time for priming. Five minutes is not unreasonable. (Priming time depends on the suction lift and horizontal length of suction piping). If the pump will not start, or will not prime, see TROUBLE SHOOTING GUIDE on the back page.

MAINTENANCE

1. Clean the strainer basket regularly. Do not strike the basket to clean. Inspect the strainer cover gasket regularly and replace as necessary.
2. Hayward pumps have self-lubricating motor bearings and shaft seals. No lubrication is necessary.
3. Keep motor housing clean. Ensure air vents are free from obstructions, debris, etc.
4. Occasionally, shaft seals must be replaced, due to wear or damage. See instructions

WINTERIZING/STORAGE

1. Drain pump by removing drain plugs) and store in a strainer basket.
2. Disconnect electrical wires and pipe connections, and store the pump in a dry, well-ventilated room. Or:

Disconnect electrical wires. Remove six (6) bolts holding the bracket and motor assembly to Strainer/Housing and store the assembly in a dry, well- ventilated room. Protect the remaining Strainer/Housing assembly from the elements by covering it.

NOTE:
Before Re-Activating the pump, thoroughly clean and remove the scale, dirt, etc.

Parts List

SEAL CHANGE INSTRUCTIONS

• SP-3000 SERIES

GENERAL
Exercise extreme care in handling and installing the new seal and seat assembly. The lapped and polished surfaces may easily be damaged by dirt or scratches. For safety, all services must be performed with all power shut off.

REMOVING THE MOTOR ASSEMBLY

1. Remove the (6) 3/8″ × 2″ hex head bolts which hold the motor assembly to the pump/strainer housing.

2. Slide the motor assembly out of the pump/strainer housing, exposing the diffuser. Pull the diffuser off of the seal plate, exposing the impeller. (The diffuser may remain in the pump/strainer housing. To remove it, pull it straight out of the strainer housing).
   REMOVING THE IMPELLER

3. Remove the motor end cover by removing the (2) screws.*

4. To hold the motor shaft from turning, carefully slide a 7/16″ wrench between the capacitor and the protector switch, and rotate the impeller so the wrench fits over the (2) flats on the motor shaft.

5. Rotate the impeller counter-clockwise and remove it. The spring portion of the seal assembly is now exposed. Note carefully the position of the spring seal, and remove it.
   NOTE: Replace the motor cover to protect delicate motor parts.
   REMOVING THE CERAMIC SEAT

6. Remove the seal plate. Note the notch on the top of the plate and the mating lug on the top of the motor mounting bracket.

7. Press the ceramic seat with the o-ring out of the seal plate. If tight, use a small screwdriver to tap the seat out.
   STOP – Clean all recesses and parts to be reassembled. Inspect gaskets and replace them if necessary.
   SEAL INSTALLATION

8. Clean and lightly lubricate the impeller hub and seal recess in the seal plate with silicone or Jack’s N° 327 o-ring lube.

9. Gently wipe the black, polished surface of the spring seal assembly with a clean, soft cotton cloth. Press the spring seal assembly onto the impeller hub – a black polished surface facing away from the impeller.

10. Gently wipe the polished face of the ceramic seat with a soft, cotton cloth. Lubricate the o-ring on the ceramic seat and press it firmly and evenly into the recess in the seal plate – the polished side facing out.

11. Place the seal plate onto the motor mounting bracket aligning the positioning lug and guide.
    REPLACING THE IMPELLER AND DIFFUSER

12. Screw the impeller onto the motor shaft in a clockwise direction. Tighten snugly by holding the motor shaft with a wrench.

13. Place the diffuser over the impeller onto the seal plate, fitting the positioning lug between the two guides.
    REPLACING THE MOTOR ASSEMBLY

14. Slide the motor assembly, with the diffuser in place, into the pump/strainer housing, being careful not to dislodge the diffuser.

15. Fasten assembly to the housing using the (6) 3/8″ × 2″ bolts. (Be sure the housing gasket is in place). Tighten alternately and evenly.

For motors without removable end covers – pry off the cap at the rear center of the motor. Place a large screwdriver in the slot at the end of the shaft to keep the shaft from turning.

NOTE:
For models equipped with Part No. SP-3005-R or SP-3021-R Impeller Ring – remove the impeller ring from the front hub of the impeller. When reassembling, be sure to replace it on the impeller hub, larger end facing diffuser, before placing diffuser over the impeller.

ELECTRICAL GUIDE

60 CYCLE MOTORS – SINGLE PHASE

TROUBLESHOOTING GUIDE

MOTOR WON’T START

1. Check for improper or loose connections, open switches or relays, blown circuit breakers or fuses.
2. Manually check the rotation of the motor shaft for free movement and lack of obstruction.

MOTOR CUTS OUT – Check for:

1. Wiring, loose connections, etc.
2. Low voltage at the motor (frequently caused by undersized wiring.
3. Binding and overload. (Amperage reading)
   NOTE: Your Hayward pump motor is equipped with Automatic Thermal Overload Protection. The motor will automatically shut off, under normal conditions, before heat damage build-up, due to an improper operating condition, can occur. The motor will auto-restart when a safe heat level is reached.

MOTOR HUMS BUT DOES NOT START

Check for:

1. Centrifugal switch stuck in the open position.
2. Binding of the motor shaft.

PUMP WON’T PRIME

1. Make sure the pump/strainer housing is filled with water, and that the cover O-Ring is clean and properly seated. Make sure the strainer cover is locked firmly in position.
2. Make sure all suction and discharge valves are open and unobstructed, and that pool water level is above all suction openings.
3. If the pump develops a vacuum, check for a blocked suction line or strainer, or air leak in the suction piping.
4. If the pump does not develop a vacuum and pump has sufficient “priming water”:
   • Tighten all bolts and fittings.
   • Check the voltage to make sure the pump is up to speed.
   • Open the pump and check for clogging and obstruction.
   • Remove and replace the shaft seal.

LOW FLOW – Generally, Check for:

1. Clogged or restricted strainer or suction line; undersized pool piping.
2. Plugged or restricted discharge line of filter (high discharge gauge reading).
3. Air leak in suction (bubbles issuing from return fittings).
4. Pump operating under speed (low voltage).
5. Plugged or restricted impeller.

NOISY PUMP – Check for:

1. Air leak in suction causing rumbling in the pump.
2. Cavitation due to restricted or undersized suction lines and unrestricted discharge lines. Correct suction condition or throttle discharge lines, if practical.
3. Vibration due to improper mounting, etc.
4. Foreign matter in the pump housing.
5. Motor bearings are made unserviceable by wear, rust, or continual overheating.

SERVICE AND REPAIRS

Consult your local authorized Hayward dealer or service center. No pumps or motors may be returned directly to the factory without the express written authorization of Hayward Pool Products Canada, Inc.
www.haywardpool.ca.

References

• Welcome to Hayward Canada

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