Hayward Power-flo UN series Installation And Operating Instructions
Hayward Power-flo UN series Installation And Operating Instructions

Hayward Power-flo UN series Installation And Operating Instructions

Pool centrifugal pump

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FOR REFERENCE ONLY
HAYWARD HIGH PERFORMANCE PUMP
INSTALLATION AND OPERATING INSTRUCTIONS
Your Hayward centrifugal pump has been quality-built
and engineered to give you efficient, dependable service.
Additionally, it may be equipped with optional union
connectors to make installation and future service easier.
The advanced design permits use of either single or dual
speed motors and reduces operation and maintenance
to simple, common-sense procedures.

GENERAL TIPS ON PUMP INSTALLATION

The Power-Flo UN pump must be installed below
water level. For best pump performance, locate the
system below the pool water line as close to the tub
as possible. Make sure suction joints are tight.
Suction pipe should be as large or larger than
discharge pipe.
Damp, non-ventilated locations should be avoided.
Motors require free circulation of air to aid in cooling.
Insure that the electrical supply available agrees
with the motor's voltage, phase and cycle, and that
wire size is adequate for the HP (KW) rating and
distance from power source. Motor must always be
properly grounded. If cord is connected, use a
properly grounded outlet. Electrical circuits must be
protected by proper size ground fault circuit
interrupter (GFCI) as required by applicable
electrical codes. All electrical wiring must be
performed by qualified personnel, and must
conform to local codes and regulations.

MAINTENANCE

1.
Hayward pumps have self-lubricating motor
bearing and shaft seals. No lubrication is
necessary.
Keep motor clean. Insure air vents are free from
2.
obstruction.
Occasionally, shaft seals must be replaced, due
3.
to wear or damage. See instructions.
HAYWARD POOL PRODUCTS, INC.
900 FAIRMOUNT AVENUE, ELIZABETH, NEW JERSEY 07207

STARTING INSTRUCTIONS

Be sure water can move freely to and from the
pump inlet and outlet. Never operate the pump
without water. Water acts as a coolant and lubricant
for the mechanical shaft seal.
Turn on pump. If pump will not start, see TROUBLE
SHOOTING GUIDE on back page. Refer to tub
manufacturer's instructions.
NOTE: ANSI/NSPI-4 Article V, standard for
above-ground and on-ground pools, advises
that components such as the filtration system,
pumps and heater be positioned so as to
prevent their being used as a means of access
to the pool by young children.
CAUTION: All suction and discharge lines must
be open when starting the system. Failure to do
so could cause severe personal injury and/or
property damage.

STORAGE/WINTERIZING

Pump and motor must be protected from freezing. If
freezing temperatures are expected, be sure all
water has been drained from tub, piping and pump.
Shut off all electric power at circuit breaker or main
service panel.
IS1500UN-98

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Summary of Contents for Hayward Power-flo UN series

  • Page 1 FOR REFERENCE ONLY HAYWARD HIGH PERFORMANCE PUMP INSTALLATION AND OPERATING INSTRUCTIONS Your Hayward centrifugal pump has been quality-built and engineered to give you efficient, dependable service. Additionally, it may be equipped with optional union connectors to make installation and future service easier.
  • Page 2 UN Series pumps have externally threaded inlet and outlet to accommodate optional union connectors. PART NUMBER REF. DESCRIPTION REQ’D. MODEL MODEL MODEL SP1500UN SP1510UN SP1511UN SPX1500N2 SPX1500N2 SPX1500N2 Bolt, No. 10-24 Hex. Head SPX1501BT SPX1501BT SPX1501BT Housing Cover SPX1082Z5B SPX1082Z5B SPX1082Z5B Housing O-Ring SPX1500E...
  • Page 3 SEAL CHANGE INSTRUCTIONS SP1500UN SERIES GENERAL Exercise extreme care in handling and installing the new seal and ceramic seat assembly. The lapped and polished surfaces may easily be damaged by dirt or scratching. For safety, all service must be performed with all power shut off. Press the new spring portion of the assembly onto Remove pump and motor assembly from piping the impeller, black polished surface facing away...
  • Page 4: Trouble Shooting Guide

    3. Binding and overload. (Amperage reading) (4) Remove and replace shaft seal. E. LOW FLOW—Generally check for: NOTE: Your Hayward pump motor is equipped with Automatic Thermal Overload Protection. The 1. Clogged or restricted suction line; undersized motor will automatically shut off, under normal pool piping.

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