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MaxFlo XL
The Hayward MaxFlo XL is a series of high technology self-priming pumps that combine
performance, dependability and value with durable construction. Designed for pools of all types
and sizes, MaxFlo XL features 1 1/2" x 2" union connections to match a variety of plumbing
configurations and a cam and ramp strainer cover that seals with less than a quarter turn. The
MaxFlo XL is an ideal choice for both new construction or as a replacement pump.
Basic safety precautions should always be followed, including the following: Failure to follow
This is the safety-alert symbol. When you see this symbol on your equipment or in this manual, look for
one of the following signal words and be alert to the potential for personal injury.
WARNING warns about hazards that could cause serious personal injury, death or major property
damage and if ignored presents a potential hazard.
CAUTION warns about hazards that will or can cause minor or moderate personal injury and/or property
damage and if ignored presents a potential hazard. It can also make consumers aware of actions that are
unpredictable and unsafe.
The NOTICE label indicates special instructions that are important but not related to hazards.
™
Owner's Manual
IMPORTANT SAFETY INSTRUCTIONS
instructions can cause severe injury and/or death.
Hayward Pool Products
620 Division Street, Elizabeth, NJ 07207
Phone: (908) 355-7995
www.hayward.com
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Pump Series
Contents
Full Table of Contents................2
General Product Warnings..........3
Installation and Wiring...............5
Start up and Operation..............9
Shaft Seal Replacement............10
Replacement Parts.....................13
Warrantee....................................15
Registration.................................16
IS2300 Rev D
1
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Table of Contents
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Summarization of Contents
Important Safety Instructions
Suction Entrapment Hazards
Hazards from damaged or unsecured suction outlet components can cause severe injury or death.
Reducing Entrapment Risk
Guidelines for installing multiple suction outlets and system flow rates to prevent entrapment.
Hazardous Pressure and Separation Warnings
Warnings about hazardous pressure and component separation due to improper operation or servicing.
Child Safety Precautions
Position components to prevent children from accessing the pool; supervise children.
Electrical and Hyperthermia Safety
Electrical Shock Prevention
Electrical wiring must conform to codes; hazardous voltage can shock, burn, or cause death.
Grounding and Bonding Requirements
Electrical grounding and bonding are critical to prevent serious or fatal shock hazards.
GFCI Protection
Electrical equipment must be connected to a GFCI-protected circuit for safety.
Pool Type Suitability
Hayward pumps are for permanently-installed pools; not for storable pools.
Hyperthermia Safety for Hot Tubs
Safety rules for hot tubs to avoid hyperthermia, including water temperature and immersion time limits.
General Information
Introduction
Overview of the manual's purpose for Hayward MaxFlo XL Series installation and operation.
Primary Features
Highlights key features of the MaxFlo XL pump, including hydraulics and union connections.
Product Dimensions
Provides key physical dimensions and specifications for different pump models.
Installation and Wiring
Pump Location
Guidelines for optimal pump placement, considering suction lift, friction loss, and environmental factors.
Pump Mounting
Instructions for securely mounting the pump on a level, rigid base to meet codes and reduce vibration.
Pipe Sizing Chart
Recommended system flow rates based on pipe size for optimal pump performance.
Plumbing
Guidance on using Teflon tape, avoiding pipe dope, and ensuring proper fitting installation for plumbing connections.
Electrical
General warnings and requirements for electrical wiring, conforming to local codes and NEC.
Electrical Specs
Table detailing electrical specifications (HP, Voltage, Amps) for various MaxFlo XL pump models.
Voltage
Guidelines on acceptable voltage ranges for pump operation to prevent overheating and component damage.
Grounding and Bonding
Critical procedures for grounding and bonding the pump to prevent electrical shock hazards.
Wiring
Instructions for wiring single-speed and dual-voltage motors, emphasizing safety precautions.
Wiring Dual-Voltage and Two-Speed Motors
Detailed instructions for wiring dual-voltage and two-speed motors according to diagrams.
Startup & Operation
Prior to Start-Up
Criteria for performing a water pressure test before initial pump use to ensure system integrity.
Starting/Priming the Pump
Step-by-step guide for priming the pump, including safety warnings and checks.
Maintenance
Routine Maintenance
Tasks include cleaning the strainer basket, inspecting the O-ring, and keeping the motor clean.
Storage / Winterization
Winterizing the Pump
Instructions for draining and preparing the pump for winter to prevent freeze damage and voiding warranty.
Shaft Seal Change Instructions
Removing the Motor Assembly
Steps to safely remove the motor assembly from the pump housing.
Removing the Impeller
Procedure for removing the impeller to access the shaft seal components.
Removing the Ceramic Seat
Steps to carefully remove the ceramic seat from the seal plate.
Seal Installation
Detailed instructions on cleaning and installing the new shaft seal components.
Replacing the Impeller and Diffuser
Instructions for reinstalling the diffuser and impeller onto the motor shaft.
Replacing the Motor Assembly
Steps for reattaching the motor assembly to the pump housing with proper torque.
Replacement Parts
Parts Diagram
Visual representation of the pump components with reference numbers.
Parts Listing
Detailed list of replacement parts with part numbers, descriptions, and quantities.
Troubleshooting
General Problems
Common issues like motor not starting, shutting off, humming, or pump not priming.
Low Flow Issues
Causes and solutions for low flow, including clogged baskets, undersized piping, or restricted filters.
Noisy Pump
Diagnosing and resolving pump noise issues such as air leaks, vibration, or bearing problems.
Warranty
Hayward Limited Warranty
Details the one-year limited warranty, exclusions, and procedures for obtaining service.
Product Registration
Warranty Card Registration
Information and form for registering the pump's warranty online or by mail.
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