Legacy Whirlpool LW 524 User manual

A HERITAGE OF QUALITY.
OWNER’S MANUAL

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MASTER SPAS OWNER’S MANUAL
Welcome To Ultimate Relaxation!
Thank you for choosing your new spa built by Master Spas. Please read the entire Owner’s Manual
before installing and using your spa. The goal of this manual is to provide you with safety and
operational information plus some tips that will help you enjoy your spa to its fullest.
At the time of print, this manual is accurate in its information. Master Spas reserves the
right to change or improve its product without prior notice. Please visit www.masterspas.com
to check for product information updates and click the Resources link on the page to review
support information.
Record Of Ownership
Name��������������������������������������������������������������������������������
Address������������������������������������������������������������������������������
City ��������������������������������������������������������� State ������ Zip ���������
Phone # (������)��������-���������� Date Purchased ������ /������ /�������
Model ��������������������������������� Serial #���������������������������������������
Dealer Name �������������������������������������������������������������������������
Service Tech Rep ����������������������������������������������������������������������
Serial Number Location
The serial number for your spa is located near the filter area, on the spa system pack, or on the
listing plate on the spa frame behind the front skirt panel. It is a seven digit number on most
models with the exception of Getaway Hot Tub models. Getaway Hot Tub models start with “R”
followed by 6 digits. Ex. 1812345 or R181234
Register Your Spa
Please be sure to register your spa so we can efficiently assist with any questions you may have.
Until your spa has been registered, Master Spas will not have record of your ownership.
To register your spa, visit www.MasterSpas.com and click the Resources link on the page.
This area will offer Spa Registration capability along with other support information.
6927 Lincoln Parkway
Fort Wayne, Indiana 46804
www.masterspas.com

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TABLE OF CONTENTS
Record of Ownership.............................................................................................................. 1
Table of Contents................................................................................................................... 2
Safety Instructions ............................................................................................................ 3-10
Compliance .......................................................................................................................... 11
VGB Suction Safety & Maintenance Instructions............................................................... 12-13
Glossary of Spa Terminology ........................................................................................... 14-16
The Advantages of EcoPur®Filtration.................................................................................... 17
Water Chemistry Terms You Should Know ....................................................................... 18-19
Why Are Chemicals Important in a Spa ................................................................................. 20
Water Maintenance......................................................................................................... 21-24
Start-Up........................................................................................................................ 21
Schedule.................................................................................................................. 22-23
Troubleshooting Guide.................................................................................................. 24
Regular Maintenance Procedures..................................................................................... 25-30
Spa Troubleshooting Guide ............................................................................................. 31-32
Winterizing & Storing Your Spa ............................................................................................ 33
Model Specifications ............................................................................................................ 34
Installation Instructions................................................................................................... 35-43
Site Preparation / General Guidelines....................................................................... 35-37
Electrical Requirements............................................................................................ 38-41
Configuration 1................................................................................................ 38-39
Configuration 2................................................................................................ 40-41
Initial Spa Setup ...................................................................................................... 42-43
Operating Instructions..................................................................................................... 44-68
Spa Controls - 120V Models ..................................................................................... 44-47
Spa Controls - MP30 Models .................................................................................... 48-57
Spa Controls - Pump Control Diagrams..................................................................... 58-63
Fusion Air Sound System (if equipped) ..................................................................... 64-68
Wi-Fi Module (if equipped) ................................................................................................... 69
Spa Care & Maintenance Record...................................................................................... 70-72

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SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
Included with your new spa is a safety sign. The sign is for you and your guest’s protection
and is suitable for outdoor use in wet locations. The sign should be placed in a location visible
to all users of the spa.
Please take time to point out the physical location of the safety sign and the importance of
the safety precautions displayed on the safety sign to all of your guests. Remember, your safety
and the safety of anyone who enjoys the use of your spa is our utmost concern.
The sign should be mounted with screws or another type of permanent fastener. Additional
or replacement signs can be obtained from your dealer or direct from the factory.
INTRODUCTION
It’s time to relax! You now have your very own portable spa by Master Spas. By fully understanding
the operation of each of the features of your new Master Spa, you will be assured of many years
of hassle-free, hot water therapy and fun.
Your safety is of paramount importance to the Master Spas family. We urge you to read and
become thoroughly familiar with all safety aspects addressed in this manual.
Through reading and totally understanding the important information in your owner’s manual, you
will realize that you now own THE ULTIMATE RELAXATION MACHINE!

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SAFETY INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
When installing and using this electrical equipment, basic safety precautions should
be observed including the following:
READ AND FOLLOW ALL
INSTRUCTIONS
WARNING – To reduce the risk of injury, do not permit children to use this product
unless they are closely supervised at all times.
A wire conductor is provided on this unit to connect a minimum 6 AWG
(13.302mm2) solid copper conductor between this unit and any metal equipment,
metal enclosures of electrical equipment, metal water pipe, or conduit within 5 feet
(1.5m) of the unit.
(For cord-connected/convertible units)
DANGER – Risk of injury.
a) Replace damaged cord immediately.
b) Do not bury cord.
c) Connect to a grounded, grounding type receptacle only.
(For units intended for indoor use only)
WARNING – For indoor use only. This unit is not intended for outdoor use.
(For units intended for outdoor use only)
WARNING – For outdoor use only. This unit is not intended for indoor use.

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SAFETY INSTRUCTIONS
IMPORTANT SAFETY
INSTRUCTIONS (CONT.)
(For units with GFCI)
WARNING – This product is provided with a ground-fault circuit interrupter
located on the front panel of selected swim spas and on the power cord of
120 volt convertible spas. The GFCI must be tested before each use. With
the product operating, open the service door. When the product stops
operating, this merely indicates that the door is equipped with an electrical
interlock. Next, push the test button on the GFCI and close the service door.
The product should not operate. Now open the service door, push the reset
button on the GFCI and close the service door. The product should now
operate normally. When the product fails to operate in this manner, there
is a ground current flowing indicating the possibility of an electric shock.
Disconnect the power until the fault has been identified and corrected.
DANGER – Risk of Accidental Drowning. Extreme caution must be exercised to
prevent unauthorized access by children. To avoid accidents, ensure that children
cannot use this spa unless they are supervised at all times.
DANGER – Risk of Injury. The suction fittings in this spa are sized to match the
specific water flow created by the pump. Should the need arise to replace the
suction fittings or the pump, be sure that the flow rates are compatible.
Never operate spa if the suction fittings are broken or missing. Never replace a
suction fitting with one rated less than the flow rate marked on the original suction
fitting.
DANGER – Risk of Electric Shock. Install at least 5 feet (1.5m) from all metal
surfaces. As an alternative, a spa may be installed within 5 feet of metal surfaces if
each metal surface is permanently connected by a minimum 8AWG (8.4mm2) solid
copper conductor to the wire connector on the terminal box that is provided for
this purpose.
DANGER – Risk of Electric Shock. Do not permit any electric appliance, such as a
light, telephone, radio, or television, within 5 feet (1.5 m) of a spa.
WARNING – To reduce the risk of injury:
a) The water in a spa should never exceed 104˚F (40˚C). Water temperatures
between 100˚F (38˚C) and 104˚F (40˚C) are considered safe for a healthy
adult. Lower water temperatures are recommended for young children and
when spa use exceeds 10 minutes.

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SAFETY INSTRUCTIONS
IMPORTANT SAFETY
INSTRUCTIONS (CONT.)
b) Since excessive water temperatures have a high potential for causing
fetal damage during the early months of pregnancy, pregnant or possibly
pregnant women should limit spa water temperatures to 100˚F (38˚C).
c) Before entering a spa, the user should measure the water temperature
with an accurate thermometer since the tolerance of water temperature-
regulating devices varies.
d) The use of alcohol, drugs, or medication before or during spa use may lead
to unconsciousness with the possibility of drowning.
e) Obese persons and persons with a history of heart disease, low or high
blood pressure, circulatory system problems, or diabetes should consult a
physician before using a spa.
f) Persons using medication should consult a physician before using a spa
since some medication may induce drowsiness while other medication may
affect heart rate, blood pressure, and circulation.
(For spas with a gas heater)
WARNING – Risk of Suffocation. This spa is equipped with a gas heater and
is intended for outdoor use only unless proper ventilation can be provided for
an indoor installation.
SAVE THESE INSTRUCTIONS
HYPERTHERMIA
Hyperthermia occurs when the internal temperature of the body reaches a
level several degrees above the normal body temperature of 98.6°F (37˚C).
Prolonged immersion in hot water may induce hyperthermia.
THE SYMPTOMS OF HYPERTHERMIA INCLUDE:
• Dizziness • Fainting • Drowsiness • Lethargy
• Increase in Internal Body Temperature
THE EFFECTS OF HYPERTHERMIA INCLUDE:
Unawareness of Impending Hazard • Failure to Perceive Heat • Failure to
Recognize the Need to Exit Spa • Physical Inability to Exit Spa • Fetal Damage
in Pregnant Women • Unconsciousness Resulting in a Danger of Drowning
WARNING – The use of alcohol, drugs, or medication can greatly increase the
risk of hyperthermia.

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SAFETY INSTRUCTIONS
IMPORTANT SAFETY
INSTRUCTIONS (CONT.)
DANGER – To reduce the risk of injury to persons, do not remove the suction
grate. Suction through drains and skimmers is powerful when the jets in the spa
are in use. Damaged covers can be hazardous to small children and adults with
long hair. Should any part of the body be drawn into these fittings, turn off the
spa immediately. As a precaution, long hair should not be allowed to float in the spa.
WARNING – Install the spa so that water can be easily drained out of the
compartment containing electrical components so as not to damage equipment.
When installing the spa make sure to allow for an adequate drainage system to
deal with any overflow water. Please allow for at least 3 feet of clearance around
the perimeter of the spa to provide enough room to access for servicing. Contact
your local dealer for their specific requirements.
WARNING – The spa should be covered with an approved locking cover when not
in use, to prevent unauthorized entry and injuries.
WARNING – People with infections, sores or the like should not use the spa. Warm
and hot water temperatures may allow the growth of infectious bacteria if not
properly disinfected.
CAUTION – Safe temperatures for swimming or aquatic exercise is around 80˚F
(26.7˚C).
CAUTION – Risk of Electrical Shock. Do not leave audio compartment open.
Audio CD controls are not to be operated while inside the spa.
CAUTION – Replace components only with identical components.
WARNING – Risk of Electric Shock. Do not connect any auxiliary components (for
example, additional speakers, headphones, additional audio/ video components
etc.) to the system. These units are not provided with an outdoor antenna.
Do not service this product yourself as opening or removing covers may expose
you to dangerous voltage or other hazards. Refer all servicing to qualified service
personnel.
If the power supply cord(s) are damaged, water is entering the speaker, audio
compartment, or any other component in the electrical equipment compartment
area, the protective shield is showing signs of deterioration, or there are signs of
other potentially hazardous damage to the unit, turn off the circuit breaker from
the wall and refer servicing to qualified personnel.

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SAFETY INSTRUCTIONS
IMPORTANT SAFETY
INSTRUCTIONS (CONT.)
The unit should be subjected to periodic routine maintenance once every quarter to
make sure that the it is operating properly.
DANGER – Risk of Electric Shock. A green colored terminal or a terminal marked G,
GR, Ground, Grounding or the symbol shown in Figure 14.1 of UL 1563 is located
inside the supply terminal box or compartment. To reduce the risk of electric shock,
this terminal must be connected to the grounding means provided in the electric
supply service panel with a continuous copper wire equivalent in size to the circuit
conductors supplying this equipment.
At least two lugs marked “Bonding Lugs” are provided on the external surface
or on the inside of the supply terminal box or compartment. To reduce the risk
of electric shock, connect the local common bonding grid in the area of the spa
to these terminals with an insulated or bare copper conductor not smaller than
8AWG.
All field installed metal components such as rails, ladders, drains, or other similar
hardware within 10 feet (3m) of the spa shall be bonded to the equipment
grounding bus with copper conductors not smaller than 8AWG.
SAVE THESE INSTRUCTIONS