Master Spas MP Force User manual

OWNER’S MANUAL
& LIMITED WARRANTY

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MASTER SPAS OWNER’S MANUAL
Welcome to the Ultimate in Relaxation!
Thank you for choosing your new swim spa built by Master Spas. For how-to videos and helpful
tips on operating and maintaining your swim spa, please visit www.masterspas.com/resources.
Please read the entire Owner’s Manual before installing and using your swim spa. The goal of this
manual is to provide you with safety and operational information plus some tips that will help you
enjoy your swim 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.
REGISTER YOUR SWIM SPA
Please be sure to register your swim spa so we can efficiently assist with any questions you may
have. Until your swim spa has been registered, Master Spas will not have record of your ownership.
To register your swim spa, visit www.masterspas.com/resources and click on Spa Registration.
SERIAL NUMBER LOCATION
The serial number for your swim spa is located near the filter area, on the swim spa system pack,
or on the listing plate on the skirting. It will start with “H” followed by a 6 digit number. For
example, H191234.
RECORD OF OWNERSHIP
Name��������������������������������������������������������������������������������
Address������������������������������������������������������������������������������
City ��������������������������������������������������������� State ������ Zip ���������
Phone Number (������) ��������-����������� Date Purchased �������� /�������� /�����������
Model ��������������������������������� Serial #���������������������������������������
Dealer Name �������������������������������������������������������������������������
Service Tech Rep ����������������������������������������������������������������������
6927 Lincoln Parkway
Fort Wayne, IN 46804
masterspas.com
WATCH HOW-TO VIDEOS:
masterspas.com/video-tutorials

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TABLE OF CONTENTS
Safety Instructions.................................................................................................................... 2-9
Compliance................................................................................................................................. 10
VGB Suction Safety & Maintenance Instructions ............................................................... 11-12
Glossary of Swim Spa Terminology .................................................................................... 13-15
The Advantages of EcoPur®Charge .................................................................................... 16-17
Water Chemistry Terms You Should Know........................................................................ 18-19
Why Are Chemicals Important in a Swim Spa ........................................................................ 20
Water Maintenance .............................................................................................................. 21-24
Start-Up ............................................................................................................................... 21
Schedule.......................................................................................................................... 22-23
Troubleshooting Guide.......................................................................................................... 24
Regular Maintenance Procedures........................................................................................ 25-31
Swim Spa Troubleshooting Guide....................................................................................... 32-33
Winterizing & Storing Your Swim Spa .................................................................................... 34
Model Specifications ................................................................................................................. 35
Installation Instructions........................................................................................................ 36-46
Site Preparation / General Guidelines ................................................................................ 36-38
Electrical Requirements .................................................................................................... 39-46
Configuration 3........................................................................................................ 39-40
Configuration 5........................................................................................................ 41-42
Configuration 7........................................................................................................ 43-44
Initial Spa Setup ............................................................................................................... 45-46
Operating Instructions ......................................................................................................... 47-98
Spa Controls - Icon Spa Touch ......................................................................................... 47-77
Spa Controls - Pump Diagrams ........................................................................................ 78-80
Propulsion System Controls.............................................................................................. 81-91
Propulsion System Technical Information............................................................................... 92
Fusion Air Sound System (if equipped) ............................................................................. 93-97
Wave Lighting (if equipped) .................................................................................................. 98
Mast3rPurTM (if equipped) .................................................................................................. 99-101
SoftTreadTM Floor System by SwimDek®(if equipped) ......................................................... 102
Limited Warranty.............................................................................................................. 103-106
Swim Spa Care & Maintenance Record........................................................................... 107-113

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SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
Included with your new swim 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 swim 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 swim 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 swim 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 swim spa unless they are supervised at all times.
DANGER – Risk of Injury. The suction fittings in this swim 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 swim 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 swim 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 swim spa.
WARNING – To reduce the risk of injury:
a) The water in a swim 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 swim 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 water temperatures to 100˚F (38˚C).
c) Before entering a swim 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 swim 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 swim spa.
f) Persons using medication should consult a physician before using a swim
spa since some medication may induce drowsiness while other medication
may affect heart rate, blood pressure, and circulation.
(For swim spas with a gas heater)
WARNING – Risk of Suffocation. This swim 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 Swim Spa • Physical Inability to Exit Swim Spa •
Fetal Damage in Pregnant Women • Unconsciousness Resulting in a Danger
of Drowning

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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 swim 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
swim
spa immediately. As a precaution, long hair should not be allowed to float in the
swim spa.
WARNING – Install the swim spa so that water can be easily drained out of the
compartment containing electrical components so as not to damage equipment.
When installing the swim 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 swim spa to provide enough room to access for
servicing. Contact your local dealer for their specific requirements.
WARNING – The swim 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 swim 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 swim 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 the 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 swim spa 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 swim 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 swim spa shall be bonded to the equipment
grounding bus with copper conductors not smaller than 8AWG.
SAVE THESE INSTRUCTIONS

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SAFETY INSTRUCTIONS
WARNING: CHILDREN SHOULD NOT USE SWIM SPAS OR HOT TUBS WITHOUT ADULT
SUPERVISION.
AVERTISSEMENT: NE PAS LAISSER LES ENFANTS UTILISER UNE CUVE DE RELAXATION
SANS SURVEILLANCE.
WARNING: DO NOT USE SWIM SPAS OR HOT TUBS UNLESS ALL SUCTION GUARDS ARE
INSTALLED TO PREVENT BODY AND HAIR ENTRAPMENT.
AVERTISSEMENT: POUR ÉVITER QUE LES CHEVEUX OU UNE PARTIE DU CORPS
PUISSENT ÊTRE ASPIRES, NE PAS UTILISER UNE CUVE DE RELAXATION SI LES GRILLES DI PRISE
D’ASPIRATION NE SONT PAS TOUTES EN PLACE.
WARNING: PEOPLE USING MEDICATIONS AND/OR HAVING AN ADVERSE MEDICAL
HISTORY SHOULD CONSULT A PHYSICIAN BEFORE USING A SWIM SPA OR HOT TUB.
AVERTISSEMENT: LES PERSONNES QUI PRENNENT DES MÉDICAMENTS OU ONT
DES PROBLÉMES DE SANTÉ DEVRAIENT CONSULTER UN MÉDECIN AVANT D’UTILISER UNE CUVE
DE RELAXATION.
WARNING: PEOPLE WITH INFECTIOUS DISEASES SHOULD NOT USE A SWIM SPA OR HOT TUB.
AVERTISSEMENT: LES PERSONNES ATTEINTES DE MALADIES INFECTIEUSES NE
DEVRAIENT PAS UTILISER UNE CUVE DE RELAXATION.
WARNING: TO AVOID INJURY EXERCISE CARE WHEN ENTERING OR EXITING THE SWIM
SPA OR HOT TUB.
AVERTISSEMENT: POUR ÉVITER DES BLESSURES, USER DE PRUDENCE EN ENTRANT
DANS UNE CUVE DE RELAXATION ET EN SORTANT.
WARNING: DO NOT USE DRUGS OR ALCOHOL BEFORE OR DURING THE USE OF A SWIM
SPA OR HOT TUB TO AVOID UNCONSCIOUSNESS AND POSSIBLE DROWNING.
AVERTISSEMENT: POUR ÉVITER L’ÉVANOUISSEMENT ET LA NOYADE ÉVENTUELLE, NE
PRENDE NI DROGUE NI ALCOOL AVANT D’UTILISER UNE CUVE DE RELAXATION NI QUAND ON S’Y
TROUVE.
WARNING: PREGNANT OR POSSIBLY PREGNANT WOMEN SHOULD CONSULT A
PHYSICIAN BEFORE USING A SWIM SPA OR HOT TUB.
AVERTISSEMENT: LES FEMMES ENCEINTES, QUE LEUR GROSSESSE SOIT CONFIRMÉE
OU NON, DEVRAIENT CONSULTER UN MÉDECIN AVANT D’UTILISER UNE CUVE DE RELAXATION.
WARNING: WATER TEMPERATURE IN EXCESS OF 38˚C MAY BE INJURIOUS TO YOUR
HEALTH.
AVERTISSEMENT: IL PEUT ÊTRE DANGEREUX POUR LA SANTÉ DE SE PLONGER DANS
DE L’EAU A PLUS DE 38˚C.
WARNING: BEFORE ENTERING THE SWIM SPA OR HOT TUB MEASURE THE WATER
TEMPERATURE WITH AN ACCURATE THERMOMETER.
AVERTISSEMENT: AVANT D’UTILISER UNE CUVE DE RELAXATION MESURER LA
TEMPÉRATURE DE L’EAU À L’AIDE D’UN THERMOMÉTRE PRÉCIS.