HAYWARD IS2700 User Manual

P/N: IS2700

REV. B

__________________________________________________________________________________________

OWNER’S MANUAL

INSTALLATION, OPERATION, & PARTS

Max-Flo II

The Hayward Max-Flo II™ is a series of high technology self-priming pumps that combines performance, dependability and value
with durable corrosion-proof construction. Designed for pools of all types and sizes, Max-Flo II features a Tri-Lock cam and ramp
strainer cover with a extra leaf-holding capacity strainer basket. Max-Flo II also features 2-inch threaded ports, a heavy-duty motor
designed to operate in environments up to 122 degrees F, an elevated base for improved motor cooling and to prevent flooding. The
Max-Flo II is an ideal choice for both new construction or as a replacement pump.

To prevent potential injury and to avoid unnecessary service calls, read this manual carefully and completely.

™

WARNING – This product should be installed and serviced only by a qualified professional.
CAUTION – A licensed electrician MUST complete, in full, all electrical installations noted in this manual.

*50HZ Models are not UL Listed.

Pump Series

SAVE THIS INSTRUCTION MANUAL

Use of non-Hayward replacement parts voids warranty.

ATTENTION INSTALLER – THIS MANUAL CONTAINS IMPORTANT INFORMATION ABOUT THE
INSTALLATION, OPERATION, AND SAFE USE OF THIS PUMP THAT MUST BE FURNISHED TO THE END
USER OF THIS PRODUCT. FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS COULD RESULT IN
SERIOUS INJURY.

HAYWARD POOL PRODUCTS

620 DIVISION STREET ELIZABETH, NJ 07207 [phone]

www.haywardpool.com

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Max-Flo II ™ Series ____ ____ _____ _ Page 2 of 16

IMPORTANT SAFETY INSTRUCTIONS

Before installing or servicing this electrical equipment, turn power supply OFF.

Basic safety precautions should always be followed, including the following: Failure to follow instructions may
result in injury.

This is the safety-alert symbol. When you see this symbol on your pump or in this manual, look for one of the

following signal words and are 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.

WARNING – Read and follow all instructions in this

owner’s manual and on the equipment. Failure to follow
instructions can cause severe injury and/or death.

WARNING – This product should be installed and serviced only by a qualified professional.
CAUTION – All electrical wiring MUST be in conformance with all applicable local codes, regulations, and the

National Electric Code (NEC).

ATTENTION INSTALLER – THIS MANUAL CONTAINS IMPORTANT INFORMATION ABOUT THE
INSTALLATION, OPERATION, AND SAFE USE OF THIS PUMP THAT MUST BE FURNISHED TO THE END USER
OF THIS PRODUCT. FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS COULD RESULT IN SERIOUS
INJURY.

WARNING – To reduce risk of injury, do not permit children to use or climb on this product. Closely supervise children

at all times. Components such as the filtration system, pumps, and heaters must be positioned to prevent children from using them as a
means of access to the pool.

Use of non-Hayward replacement parts voids warranty.

CAUTION – This pump is intended for use on permanently installed swimming pools and may also be used with hot tubs

and spas if so marked. Do NOT use with storable pools. A permanently installed pool is constructed in or on the ground or in a
building such that it cannot be readily disassembled for storage. A storable pool is constructed so that it is capable of being readily
disassembled for storage and reassembled to its original integrity.

Though this product is designed for outdoor use, it is strongly advised to protect the electrical components from the weather. Select a
well-drained area, one that will not flood when it rains. It requires free circulation of air for cooling. Do not install in a damp or non­ventilated location. If installed within an outer enclosure or beneath the skirt of a hot tub or spa, adequate ventilation and free circulation
of air must be provided to prevent overheating of the motor.

WARNING – Pool and spa components have a finite life. All components should be inspected frequently and replaced at

least every ten years, or if found to be damaged, broken, cracked, missing, or not securely attached.

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Max-Flo II™ Series _____ _____ _____

_____

___________________Pag

e 3 of 16

WARNING – Risk of Electric Shock. All electrical wiring MUST be in conformance with all

applicable local codes, regulations, and the National Electric Code (NEC). Hazardous voltage can shock,
burn, and cause death or serious property damage. To reduce the risk of electric shock, do NOT use an
extension cord to connect unit to electric supply. Provide a properly located electrical receptacle. Before
working on pump or motor, turn off power supply to the pump.

WARNING – To reduce the risk of electric shock replace damaged wiring immediately. Locate conduit to prevent abuse

from lawn mowers, hedge trimmers and other equipment.

WARNING – It is recommended to install a Ground Fault Circuit Interrupter (GFCI) in the circuit, however, all

electrical wiring MUST be in conformance with all applicable local codes, regulations, and the National Electric Code (NEC).

WARNING – Failure to bond pump to pool structure will increase risk for electrocution and could result in injury or

death. To reduce the risk of electric shock, see installation instructions and consult a professional electrician on how to bond pump.
Also, contact a licensed electrician for information on local electrical codes for bonding requirements.

Notes to the electrician:

Use a solid copper conductor, size 8 or larger. Run a continuous wire from external bonding lug to reinforcing rod or mesh. Connect
a No. 8 AWG (8.4 mm
parts of swimming pool, spa, or hot tub, and to all electrical equipment, metal piping (except gas piping), and conduit within 5 ft. (1.5
m) of inside walls of swimming pool, spa, or hot tub. IMPORTANT - Reference NEC codes for all wiring standards including, but
not limited to, grounding, bonding and other general wiring procedures.

2

) solid copper bonding wire to the pressure wire connector provided on the motor housing and to all metal

WARNING – Suction Entrapment Hazard.

Suction in suction outlets and/or suction outlet covers, which are damaged, broken, cracked, missing, or
unsecured cause severe injury and/or death due to the following entrapment hazards:

Hair Entrapment- Hair can become entangled in suction outlet cover.
Limb Entrapment- A limb inserted into an opening of a suction outlet sump or suction outlet cover that is

damaged, broken, cracked, missing, or not securely attached can result in a mechanical bind or swelling of the
limb.

Body Suction Entrapment- A pressure applied to a large portion of the body or limbs can result in an entrapment.
Evisceration/ Disembowelment- A negative pressure applied directly to the intestines through an unprotected suction outlet

sump or suction outlet cover which is damaged, broken, cracked, missing, or unsecured can result in
evisceration/disembowelment.
Mechanical Entrapment- There is potential for jewelry, swimsuits, hair decorations, fingers, toes, or knuckles to be caught
in an opening of a suction outlet cover resulting in mechanical entrapment.

WARNING - To Reduce the risk of Entrapment Hazards:

- When outlets are small enough to be blocked by a person, a minimum of two functioning
suction outlets per pump must be installed. Suction outlets in the same plane (i.e. floor or wall),
must be installed a minimum of three feet (3’) [0.91 meter] apart, as measured from near point
to near point.

- Dual suction fittings shall be placed in such locations and distances to avoid “dual blockage”
by a user.

- Dual suction fittings shall not be located on seating areas or on the backrest for such seating

areas.

- The maximum system flow rate shall not exceed the values shown in the “Pipe Sizing Chart” found at the bottom of page 5
of this manual.

- Never use pool or spa if any suction outlet component is damaged, broken, cracked, missing, or not securely attached.

- Replace damaged, broken, cracked, missing, or not securely attached suction outlet components immediately.

- In addition to two or more suction outlets per pump installed in accordance with latest IAF (formerly NSPI) standards and
CPSC guidelines, follow all national, state, and local codes applicable.

- Installation of a vacuum release or vent system, which relieves entrapping suction, is recommended.

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Max-Flo II™ Pump Series __________ _____ ________________________ Page 4 of 16

WARNING – Hazardous Pressure. Pool and spa water circulation systems operate under

hazardous pressure during start-up, normal operation, and after pump shut-off. Stand clear of circulation
system equipment during pump start-up. Failure to follow safety and operation instructions could result in
violent separation of the pump housing and cover due to pressure in the system, which could cause property
damage, severe personal injury, or death. Before servicing pool and spa water circulation system, all
system and pump controls must be in off position and filter manual air relief valve must be in open
position. Before starting system pump, all system valves must be set in a position to allow system water to

return back to the pool. Do not change filter control valve position while system pump is running. Before
starting system pump, fully open filter manual air relief valve. Do not close filter manual air relief valve until a steady stream of water
(not air or air and water) is discharged. All suction and discharge valves MUST be OPEN when starting the circulation system.
Failure to do so could result in severe personal injury and/or property damage.

WARNING – Separation Hazard. Failure to follow safety and operation instructions could

result in violent separation of pump components. Strainer cover must be properly secured to pump housing

with strainer cover lock ring. Before servicing pool and spa circulation system, all system and pump

controls must be in off position and filter manual air relief valve must be in open position. Do not operate

pool and spa circulation system if a system component is not assembled properly, damaged, or missing. Do

not operate pool and spa circulation system unless filter air relief valve body is in locked position in filter

upper body. All suction and discharge valves MUST be OPEN when starting the circulation system.

Failure to do so could result in severe personal injury and/or property damage.

WARNING – Never operate or test the circulation system at more than 50 psi.

WARNING – Fire and burn hazard. Motors operate at high temperatures and if they are not properly isolated from

any flammable structures or foreign debris they can cause fires, which may cause severe personal injury or death. It is also necessary
to allow the motor to cool for at least 20 minutes prior to maintenance to minimize the risk for burns.

WARNING – Failure to install according to all defined instructions may result in severe personal injury or death.

General Information

Introduction

This manual contains information for the proper installation and operation of the Hayward Max-Flo IITM Series. The
instructions in this manual MUST be followed precisely. Failure to install according to defined instructions will void

warranty.

Product Features & Benefits

• Self-priming.

• Tri-Lock cam and ramp strainer cover are designed to seal with less than quarter turn.

• Clear strainer cover lets you see when the basket needs cleaning. Pressure testable to 50 psi

MAXIMUM.

• Large leaf holding capacity strainer basket extends time between cleanings.

• Heavy-duty, high performance motor is designed to operate in environments up to 122° F.

• Elevated base insures better air circulation for cooler running and prevents flooding.

• All components molded of corrosion-proof reinforced engineered plastic for extra durability and long

life.

• Service-Ease Design provides easy access to all internal components by just removing 4 bolts.

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Max-Flo II ™ Series__________ _____ ________________________ ______Page 5 of 16

Product Specifications

Single Speed

HP Dimension "A"

0.75 10.8"
1 11.3"

1.5 12.4"
2 12.5"

Dual Speed

HP Dimension "A"

1 12.0"

1.5 12.5"
2 13.0"

Installation Instructions

WARNING – This product should be installed and serviced only by a qualified professional.

Pump Location

Locate pump as close to pool as practical and run suction lines as direct as possible to reduce friction
loss. Suction lines should have continuous slope upward from lowest point in line. Joints must be tight
(but not over-tightened). Suction line diameter must equal or be larger than the discharge line diameter.

Though the pump is designed for outdoor use, it is strongly advised to protect the electrical components

from the weather. Select a well-drained area, one that will not flood when it rains. Do NOT install pump in a damp or

non-ventilated location. Keep motor clean. Pump motors require free circulation of air for cooling.

Pump Mounting

Install pump on a firm, level base or pad to meet all local and national codes. Fasten pump to base or pad with screws or
bolts to further reduce vibration and stress on pipe or hose joints. The base MUST be solid, level, rigid, and vibration free.

Pump mount must:

 Allow pump inlet height to be as close to water level as possible.
 Allow use of short, direct suction pipe (to reduce friction losses).
 Allow for gate valves in suction and discharge piping.
 Be protected from excess moisture and flooding.
 Allow adequate access for servicing pump and piping.

IMPORTANT NOTES – No system should allow any higher than 8-ft/sec [2.44 meters/sec]
water velocity. It is recommended that a minimum length of piping (L as shown to the right), equivalent
to 5 pipe diameters, be used between the pump suction inlet and any plumbing fittings.

Pipe Sizing Chart

MAXIMUM RECOMMENDED SYSTEM FLOW RATE BY PIPE SIZE

Pipe Size Flow rate Water Velocity Pipe Size Flow rate Water Velocity

[mm] GPM [Liter/Min] ft/sec [meters/sec] [mm] GPM [Liter/Min] ft/sec [meters/sec]

1 ½” 50.76 8 2 ½” 119.40 8

[50] [192] [2.44] [75] [452] [2.44]

2” 83.65 8 3” 184.32 8

[63] [317] [2.44] [90] [698] [2.44]

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