Hayward Perflex®, Extended-Cycle, Perflex EC50AC Owner's Manual

IS50C Rev C

PERFLEX

by

Owner’s Manual

™

MODEL: EC50AC

PERFLEX

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 or death.

WARNING Warns about hazards that could cause serious personal injury or, death, and 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.

®

Extended Cycle Filter

SAVE THIS INSTRUCTION MANUAL

Hayward Pool Products

One Hayward Industrial Drive, Clemmons, NC 27012

Phone: [phone]

www.haywardnet.com

READ, UNDERSTAND, AND FOLLOW ALL SAFETY AND OPERATION

INSTRUCTIONS.

SEVERE PERSONAL INJURY OR DEATH.

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

supervise children at all times. The ANSI/APSP-4 Standard (above-ground and on-ground pools)
advises that components such as the filtration system, pumps, and heaters be positioned to prevent
their being used as a means of access to the pool by young children

WARNING COMPONENT SEPARATION HAZARD

Pool and spa water circulation systems operate under hazardous pressure during start up, normal
operation, and possibly after pump shut off. Pressure in system can cause explosive component
separation of the upper filter body if safety and operation instructions are not followed. Severe
personal injury or death can result.

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

FAILURE TO FOLLOW SAFETY AND OPERATION INSTRUCTIONS CAN RESULT IN

.

TO AVOID COMPONENT SEPARATION

•

Follow all safety and operation instructions.

•

Do not operate water circulation system if a system component is assembled improperly, damaged,

missing, or not a genuine Hayward component.

• Before performing maintenance on the water circulation system, verify all system and pump controls
are in OFF position and filter manual air relief valve is in the OPEN position.

• Always tighten nut until spring coils touch each other, never only hand tighten.

• Before starting the system pump, verify that all system valves are set in a position to allow water from

the filter to return back to the pool.

• Before starting the system pump, the manual air relief valve must be in the OPEN position.

• When starting pump, do not stand over or near filter.

• Return to filter to close manual air relief valve only when a steady stream of water (Not air or air and

water mix) is discharged from the manual air relief valve.

WARNING EXCESS PRESSURE HAZARD

Pressure testing of the pump and filter system in excess of the 45 PSI can cause explosive separation of
the components. Component separation can result in severe personal injury or death.

WARNING ELECTROCUTION HAZARD

High Voltage electricity is present in the pool and spa equipment. High voltage electricity can cause shock
and electrocution. Shock and electrocution can result in severe personal injury or death.

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

• Before performing any service or maintenance on electrical equipment turn off all electrical power.

• Contact a licensed electrician or building inspector for information on local electrical codes for bonding

requirements.

• Verify water discharge from the filter manual air relief valve is directed away from electrical devices.

Do not locate pump controls over or near filter.

USE ONLY HAYWARD GENUINE REPLACEMENT PARTS

Page 2 of 12

PERFLEX

™ Filtration Series IS50C REV C

WARNING – SUCTION ENTRAPMENT HAZARD.

Suction in suction outlets and/or suction outlet covers that are, damaged, broken, cracked, missing, or
unsecured can 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 negative pressure applied to a large portion of the body or limbs can
result in an entrapment.
Evisceration/ Disembowelment Entrapment- A negative pressure applied directly to the intestines
through an unprotected suction outlet sump or suction outlet cover that is, damaged, broken, cracked,
missing, or unsecured can result in evisceration/ disembowelment entrapment.
Mechanical Entrapment- There is potential for jewelry, swimsuit, hair decorations, finger, toe or
knuckle to be caught in an opening of a suction outlet cover resulting in mechanical entrapment.

TO REDUCE THE RISK OF ENTRAPMENT HAZARDS:

• 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’) [1 meter] apart, as
measured from near point to near point.

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

• Dual suction outlets shall not be located on seating areas or on the backrest for such seating areas.

• The pool or spa circulation system shall be designed to comply with ANSI/APSP-7 2006.

• Suction outlet covers shall conform to ANSI/ASME A112.19.8

• Never use Pool or Spa if any suction outlet component (cover/grate) is damaged, broken, cracked,

missing, or not securely attached.

• Immediately replace damaged, broken, cracked, missing, or not securely attached suction outlet
components.

• The CPSP as well as the ICC
specifies the installation of a safety vacuum release system conforming to ASME A112.19.17, or an
approved gravity drain system.

• Failure to remove pressure test plugs and/or plugs used in winterization of the pool/spa from the
suction outlets can result in an increased potential for suction entrapment.

International Residential Code

Part IX, Appendix G, Section AG106

• Failure to keep suction outlet components clear of debris, such as leaves, dirt, hair, paper and other

material can result in an increased potential for suction entrapment.

Suction outlet covers and grates have a finite life. They should be inspected frequently and
replaced within specified life.

KEEP SAFETY LABELS IN GOOD CONDITION AND REPLACE IF MISSING OR DAMAGED.

USE ONLY HAYWARD GENUINE REPLACEMENT PARTS

Page 3 of 12

PERFLEX

™ Filtration Series IS50C REV C

The Hayward-Perflex is a high performance swimming pool filter with a filtration rating of 3,000 gallons (11 KL) per hour.
Manufactured from durable, corrosion-proof materials, it is designed for continuous operation, for installation above or below, the
pool water line. It may be used on fresh or salt water swimming pools.
The Perflex filter uses diatomite filter powder (commonly called D.E.). D.E. is the most efficient dirt remover known. It is normally fed
into the system through the skimmer when the filter is initially started; then drained from the filter when it can no longer efficiently
remove dirt from the water. Through the Perflex's exclusive "BUMP" action, the D.E. is periodically regenerated and the filter cycle
extended without changing the powder. When the filter powder is totally used, the "BUMP" action makes it possible to drain the used
diatomite without backwashing or dismantling the filter. The EC-50AC is equipped with a special, polished stainless steel clamp,
designed for easy access to the internals of the filter.

PUMP SELECTION

To power your Perflex filter, select a continuous duty
pump designed for swimming pool service. The filter may
be used with a variety of Hayward bases and plumbing
connections, or may be mounted on other suitable
surfaces.

It is important to determine whether the pump will be
located above or below the normal pool water line. If the
pump is going above the water line, a self-priming
centrifugal pump must be used. Self-priming pumps can
lift water from a lower level
and prime automatically.
There is another type of
pump simply called the
centrifugal. Unlike self­priming centrifugals which
can lift water from a lower
level, a centrifugal must be
located below the water
line for dependable

priming.

Select a pump with an output rating of between 30 and
65 GPM (114-246 LPM). Since 50 GPM (189 LPM) is the
desired maximum filter flow, a flow controller (part
number ECX1055) is furnished with each unit for use
with pumps rated between 40 and 65 GPM (150-246
LPM). Install the flow controller in the filter body as
illustrated with an elbow adapter, union connector, or
adapter. The adapter both secures the controller in its
proper position, and completes the hydraulic balance
of the system.

PLUMBING & INSTALLATION

1. To facilitate servicing of the filter system and to allow
for indoor storage during the winter months, installing
union connections at the suction and outlet ports is
recommended.

2. Use 1-1/4" or 1-1/2" I.D. flexible plastic pipe, or hose,
joined with insert fittings and stainless steel clamps.

3. All plumbing connections on the system are 1-1/2"

FILTER LOCATION

1. Though the filter is designed for outdoor use, it is
advisable to protect electrical components from the
weather. Select a well-drained area, one that will not
flood when it rains. Locate the filter as close to the pool
as practical, keeping the number of fittings to a
minimum.

2. Set the filter on a level mounting platform or base. Keep
the filter bump handle, drain outlet, and pressure gauge
accessible for convenient operation.

3. Position the system so that the filter tank can drain by
gravity.

USE ONLY HAYWARD GENUINE REPLACEMENT PARTS

Page 4 of 12

PERFLEX

N.P.T. When making connections, use plastic male-end
adapters. Apply three turns of Teflon tape or plastic
pipe sealant compatible with ABS to the male threads.
Screw the fitting into the thread hand tight; then, using
a wrench, tighten one more full turn. Additional
tightening is unnecessary-and-could result in damage
to components.

4. Refer to the diagrams for suggested valving. Ball-type
valves are recommended where needed.

™ Filtration Series IS50C REV C