Master Spas Down east User manual

OWNER’S MANUAL

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. To check on updates or for other information,
please visit www.masterspas.com and follow the links to the customer service section.
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 in the filter area, on the spa system pack, or on the listing
plate on the skirting. It is a seven digit number. Ex. 1245900
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6927 Lincoln Parkway
Fort Wayne, Indiana 46804
800-860-7727
www.masterspas.com

TABLE OF CONTENTS
Important Safety Instructions
All Spa Models, Personal Safety.................................................................................................... 3-10
Glossary of Spa Terminology ............................................................................................................ 11-13
Installation
Electrical Installation Requirements ....................................................................................................... 14
Wiring Schematic............................................................................................................................. 15
Site Preparation / General Guidelines............................................................................................... 16
Installation Instructions .................................................................................................................... 17
Water Chemistry Terms .................................................................................................................... 18-19
Spa Water Maintenance ................................................................................................................... 20-22
Water Maintenance Trouble-Shooting Guide.......................................................................................... 23
Why Chemicals are Important in a Spa................................................................................................... 24
Maintenance Recommendations ............................................................................................................ 25
Winterizing Your Spa............................................................................................................................. 26
Down East Spas Specifications .............................................................................................................. 27
Down East
Controls ..................................................................................................................................... 28-43
Main Menu...................................................................................................................................... 28
Fill It Up........................................................................................................................................... 29
Spa Behavior.................................................................................................................................... 30
Temperature and Temp Range......................................................................................................... 31
Mode – Ready and Rest................................................................................................................... 32
Mode – Show and Set Time of Day ................................................................................................. 33
Flip (Invert Display)........................................................................................................................... 33
Restricting Operation....................................................................................................................... 34
Unlocking........................................................................................................................................ 34
Hold (Stand By)................................................................................................................................ 35
Adjusting Filtration .......................................................................................................................... 36
Preferences...................................................................................................................................... 37
General Messages............................................................................................................................ 38
Heater-Related Messages................................................................................................................. 39
Sensor-Related Messages................................................................................................................. 40
Miscellaneous Messages .................................................................................................................. 40
System-Related Messages ................................................................................................................ 41
Reminder Messages.................................................................................................................... 42-43
Spa Theater System STS ................................................................................................................... 44-45
Deluxe Fusion Audio System............................................................................................................. 46-47
Spa Trouble Shooting Guide ............................................................................................................. 48-49
Regular Maintenance Procedures...................................................................................................... 50-52
Spa Care and Maintenance Record.................................................................................................... 53-56
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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, Inc. 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 MasterSpas 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 locat-
ed 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 oper-
ate. 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 possi-
bility 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 conduc-
tor 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 40˚C (104˚F). Water temperatures
between 38˚C (100˚F) and 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 38˚C (100˚F).
c) Before entering a spa, the user should measure the water temperature 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.
HYPERTHERMIA
Hyperthermia occurs when the internal temperature of the body reaches a level
several degrees above the normal body temperature of 98.6° F.
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

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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 2 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 dis-
infected.
CAUTION – Safe temperatures for swimming or aquatic exercise is around 80˚F.
CAUTION – Risk of Electrical Shock. Do not leave audio compartment open.
Audio 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 3m of the 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 SPAS OR HOT TUBS WITHOUT ADULT SUPERVISION
AVERTISSEMENT: NE PAS LAISSER LES ENFANTS UTILISER UNE CUVE DE RELAXATION
SANS SURVEILLANCE
WARNING: DO NOT USE 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 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 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 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 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 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 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

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SAFETY INSTRUCTIONS
WARNING: DO NOT USE A SPA OR HOT TUB IMMEDIATELY FOLLOWING STRENUOUS EXERCISE
AVERTISSEMENT: NE PAS UTILISER UNE CUVE DE RELAXATION IMMÉDIATEMENT APRÉS
UN EXERCISE FATIGANT
WARNING: PROLONGED IMMERSION IN A SPA OR HOT TUB MAY BE INJUROUS TO YOUR
HEALTH
AVERTISSEMENT: L’UTILISATION PROLONGÉE D’UNE CUVE DE RELAXATION PEUT ÊTRE
DANGEREUSE POUR LA SANTÉ
WARNING: DO NOT PERMIT ELECTRIC APPLIANCES (SUCH AS LIGHT, TELEPHONE, RADIO, OR
TELEVISION) WITHIN 1.5 M OF THIS SPA OR HOT TUB
AVERTISSEMENT: NE PAS PLACER D’APPAREIL ÉLECTRIQUE (LUMINAIRE, TÉLÉPHONE,
RADIO, TÉLÉVISEUR, ETC) À MOINS DE 1.5 M DE CETTE CUVE DE RELAXATION
CAUTION: MAINTAIN WATER CHEMISTRY IN ACCORDANCE WITH MANUFACTURER’S
INSTRUCTION
ATTENTION: LA TENEUR DE L’EAU EN MATIÉRES DISSOUTES DOIT ÊTRE CONFORME AUX
DIRECTIVES DU FABRICANT
Hyperthermia occurs when the internal temperature of the body reaches a level several degrees above
the normal body temperature of 37˚C. The symtoms of hyperthermia include drowsiness, lethargy, and
an increase in the internal temperature of the body. The effects of hyperthermia include
(a) unawareness of impending hazard;
(b) failure to perceive heat;
(c) failure to recognize the need to exit spa;
(d) physical inability to exit spa;
(e) fetal damage in pregnant women; and
(f) unconsciousness and danger of drowning.
WARNING: THE USE OF ALCOHOL OR DRUGS CAN GREATLY INCREASE THE RISK OF FATAL
HYPERTHERMIA IN HOT TUBS AND SPAS
LA CONSOMMATION D’ALCOOL OU DE DROGUE AUGMENTE CONSIDÉRABLEMENT LES
RISQUES D’HYPERTHERMIE MORTELLE DANS UNE CUVE DE RELAXATION.

GLOSSARY OF SPA TERMINOLOGY
1. NECK JETS
2. SHOULDER JETS
3. THERAPY JETS
4. MASTER BLASTER
FOOT THERAPY JET
1. NECK JETS
2. SHOULDER JETS
3. THERAPY JETS
4. MASTER BLASTER
FOOT THERAPY JET
5. JET DIVERTER VALVE
Located on the topside of the spa, this valve physically diverts the flow
of water from one jet zone of the spa to another jet zone.
Be sure that no sand or particles are brought into the spa as they will
cause the diverter to seize up. It is best to turn the diverter valve only
when the pump is turned off.
6. AIR CONTROL VALVES
These are located around the top of your spa. You may increase or
decrease the force of your jets by opening or closing the air control
valves. Typically, one dial controls the air to water ratio and mix to one
group of jets. When not in use the air controls should be kept in the
closed position, as air bubbles tend to cool the water.
Your new Master Spa features a variety of jet styles. All jets,
regardless of style return the water to the spa. Air is mixed
with the water by using the air controls (if equipped) creating
a gentle to most vigorous massage. Water flow is adjusted
by simply turning the outer face of the jet. Your Master Spa
will have a combination of pulsating, rotating, dual pulsating
and directional adjustable jets.
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Neck, Shoulder, Therapy Jets Master Blaster (If so equipped)

GLOSSARY OF SPA TERMINOLOGY
7. TOPSIDE CONTROL PANEL
You may safely control spa functions from inside or outside your spa using the Topside Control
Panel. This Panel is used to control the water temperature, pumps, the spa light, automatic
filtration cycles and other advanced functions. The digital display will give you a constant
temperature readout and will notify you in case of certain malfunctions. Several user
programmable functions are also available.
8. EQUIPMENT ACCESS PANEL
Located behind the side panel below the Topside Control Panel, this area houses the major
components responsible for the spas operation. Those components include the pumps, heater,
control panel box, ozonator, and LED light system (if applicable).
9. ACCESS PANELS
These are located on all four sides of the spa. All of the panels are removable should service
be required.
10. DRAINING YOUR SPA
The drain is located behind a removable corner panel. This panel is on the
right side of the spa as you are facing the topside control panel. You can
access the drain by unscrewing the corner screws and removing the corner
panel. Grasp the drain cap, and pull the assembly out all the way. Unscrew
the cap, then push the assembly back in half way to start the flow of water.
Attach a garden hose, if desired. Draining times may vary by model using the
externa l hose bib. A sump pump may also be used to drain the spa quickly.
NOTE: When pushing or pulling the assembly in or out, water will drip from
the drain during the transition. This is normal.
11. FILTER LID
Your filter lid will serve to prevent major objects from entering your filter area and possibly
damaging your filter elements which are located under the filter lid. These filter elements
are designed to remove small debris and oils from your spa water.
12. WEIR GATE
The weir gate is the horizontal door located in front of the filters that trap debris in the filter area.
13. SPA LIGHT
Your spa lighting is designed for safety and is located on the interior wall of your spa. The on/off
switch is located on the topside control panel.
14. EQUIPMENT CONTROL SYSTEM
This houses the wiring and electrical components necessary to operate the spa.
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GLOSSARY OF SPA TERMINOLOGY
14. SPA HEATER
This element is an electric heater housed in a stainless steel tube. It is thermostatically controlled
and equipped with a high-limit temperature safety shut-off sensor. The high-limit sensor cannot
be reset until the temperature within the heater assembly drops several degrees below the shut-off
temperature of 108° - 110° F (varies by model). Should the high-limit switch trip repeatedly,
contact your dealer or qualified service representative to diagnose the problem.
15. SLICE VALVES
These valves are used by service personnel to shut off water to the
heater, main pump system and secondary pump system so that the
water does not need to be drained should the spa
require service (varies by model).
NOTE: Slice valves must be completely open during normal operations.
16. MAIN PUMP
These pumps produce water flow through the main spa jets. The pumps are activated by pressing
the “Jets” and “Aux” buttons.
17. CIRCULATION PUMP
This produces water flow through the heater in the spa and provides the water flow necessary to
actuate the ozone generator. This fractional HP pump runs 24 hours a day for efficient filtration
and heating. This pump is standard on all Down East models.
18. PUMP UNION
These are used by service personnel to easily service the pumps.
19. HEATER UNION
These are used by service personnel to easily service the heater.
20. OZONATOR
Your ozonator will operate in conjunction with your filtration system
and circulation pump (if applicable). It will deactivate when any other
control function is manually activated and will reactivate after one hour
of inactivity. The ozonator is standard on all spas.
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ELECTRICAL INSTALLATION REQUIREMENTS
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Permanently Connected Equipment Assembly with Pump(s), Heaters, Luminaine, Ozone, Spa Side
Control(s), Pump shut off device, and Audio/Video Components.
Note: Some of the above components may be optional or not available with every spa model.
ELECTRICAL INSTALLATION REQUIREMENTS
HAVE YOUR ELECTRICIAN READ THE FOLLOWING INFORMATION
BEFORE INSTALLATION BEGINS
Electrical connections made improperly, or the use of wire gauge sizes for incurring
power which are too small, may continually blow fuses in the electrical equipment box,
may damage the internal electrical controls and components, may be unsafe and in any
case will void your warranty.
It is the responsibility of the spa owner to ensure that electrical connections are made by
a qualified electrician in accordance with the National Electrical Code and any local and
state electrical codes in force at the time of installation.
These connections must be made in accordance with the wiring diagrams found
inside the control box. This equipment has been designed to operate on 60Hz.
alternating current only, 240 volts are required. Make sure that power is not applied
while performing any electrical installation. A copper bonding lug has been provided on
the electrical equipment pack to allow connection to local ground points. The ground
wire must be at least 8 AWG copper wire and must be connected securely to a grounded
metal structure such as a cold water pipe. All Master Spas equipment packs are wired
for 240 VAC only. The only electrical supply for your spa must include a 50 AMP
switch or circuit breaker to open all non-grounded supply conductors to comply
with section 422-20 of the National Electrical Code. The disconnect must be readily
accessible to the spa occupants, but installed at least five feet from the spa. A Ground-
Fault Circuit Interrupter (GFCI) must be used to comply with section 680-42 of the
National Electrical Code. A ground fault is a current leak from any one of the supply
conductors to ground. A GFCI is designed to automatically shut off power to a piece
of equipment when a ground fault is detected.
Power hook-up to the spa must be 240 volt 3 wire plus ground (6 AWG copper)
8 AWG copper ground.
Route the cable into the equipment area for final hook-up to terminals inside the
control panel. The spa must be hooked up to a “dedicated” 240 volt, 50 amp breaker
and GFCI. The term “dedicated” means the electrical circuit for the spa is not being
used for any other electrical items (patio lights, appliances, garage circuits, etc.). If the
spa is connected to a non-dedicated circuit, overloading will result in “nuisance
tripping” which requires resetting of the breaker switch at the house electrical panel.
Rev. 05/01/06

WIRING SCHEMATIC - 240 VOLT SPA HOOK-UP
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ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
50 5050
TEST
50
1
2
3
4
5
WHITE (NEUTRAL)
BLACK (HOT)
RED (HOT)
GREEN (GROUND)
Instruments
Balboa
Incorporated
Wire Key
House Breaker Box
G.F.C.I Breaker Box
Spa System Box
Green (Ground)
Red (Hot)
Black (Hot)
White (Neutral)
NOTE: For a 240 V
dedicated hook-up, the
white neutral wire is
not required between
the G.F.C.I. and the
system box.
GRN
GRN (GROUND)
RED (HOT)
BLK (HOT)
BLK (HOT)
RED (HOT)
RED (HOT)
WHT (NEUTRAL)
WHT
WHT
BLK (HOT)
GRN (GROUND)
TB1
IDF00007.mac 6/17/97
* Actual wiring of GFCI will vary by manufacturer of GFCI. The GFCI shown is a Square D. Improper
wiring of GFCI may result in permanent damage to spa system box. Repair / replacement of spa
system box is not covered under warranty when damage results from improper wiring.

SITE PREPARATION / GENERAL GUIDELINES
Portable spa installation is simple when properly planned. It is important that you read the following
information carefully and consult with your Master Spas dealer.
1) Access - The actual dimensions of your new spa will determine the amount of space that is needed in
moving the spa from curbside to its final installation area. Be sure to measure side yard dimensions,
gates or doors and vertical obstructions such as roof overhangs and overhead cables. Any other space
limiting obstacles such as trees or shrubs must be evaluated.
2) If the spa is being installed indoors, dimension limitations such as stairs, ceilings and walls must
be taken into consideration. Please have your Master Spas dealer or delivery service review site
or installation plans prior to delivery.
3) Surface/Pad Requirements - When your new spa is filled with water and bathers, it may weigh as
much as several tons. It is imperative that the base beneath the spa can support the entire weight.
The spa must be on a uniformly firm, continuous, and level surface. The recommended foundation
is a concrete pad with a minimum thickness of four (4) inches with steel reinforcement bars crossed
throughout the pad.
IMPORTANT
When installing your spa indoors, on a wood deck, or balcony, the same load requirements must
be met. Total load may be as much as 90 pounds per square foot. You should speak with a qualified
contractor or your local building department to confirm that your surface is adequate for supporting
a spa. Be sure to locate your spa so that equipment remains above grade and is not subject to
flooding.
The equipment side(s) of the spa must be accessible in the event that future service is needed.
Periodical maintenance checks require entry into the equipment bay. When possible, it is wise
planning for the future to leave 2 feet of access to all sides of the spa in the event your spas plumbing
requires maintenance. Your spa warranty does not cover the cost of providing access for service.
GENERAL CONSIDERATIONS FOR OUTDOOR INSTALLATION
Again, proper planning will increase your total enjoyment factor with your new spa. Listed below are
some additional items to consider when planning your installation.
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•Howspawillcomplementlandscaping
and vice versa
•Viewfrominsidespaandviewofspafrom
inside of home
•Exposuretosunlightandshadingfromtrees
•Privacy
•Gettingtospafromhouseandreturn
•Proximitytodressingroomsandbathrooms
•Storageforspachemicals
•Localbuildingcodes(ifapplicable)
•Powercable
GENERAL CONSIDERATIONS FOR INDOOR INSTALLATION
Installing your spa indoors creates an entirely different set of considerations. Here again, with proper
planning, no matter what room your spa goes in, it will be your favorite room.
•WorkwithyourMasterSpasdealerand
contractor to insure all local building, electrical
and plumbing codes are met
•Planforafloordraintodrainoffexcesswater
or for draining and cleaning your spa
•Aventilationfanmaybenecessarydue
to high humidity created by your spa
•Finishedmaterialinyoursparoomshouldalso
be capable of withstanding increased humidity

INSTALLATION INSTRUCTIONS
1. Put spa in final position that allows for access to equipment and spa components.
2. Remove front side panel (This is the side where the main topside control panel is located) so
electrical can be hooked up to the spa system pack. Panels are removed by unscrewing the screws
in the corner sections and then lifting up the panels out of the retaining tracks. NOTE: On some
models, you will need to remove the Phillips mounting screws instead of the corner screws.
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3. Be sure all pump and heater unions are secure. Each pump has
2 unions and the heater has 2 unions. A newly delivered spa may have
loose unions caused in transporting the spa. Check that all slice valves
are open, in the up position. The slice valves may become closed during
transportation of the spa.
4. Fill spa at least 1” above the filters. We recommend filling the spa through the filter area.
5. Turn the power on to the spa. Spa will go through its priming mode. This lasts approximately
5 minutes.
6. Be sure the jets in your spa are open by turning the face of the jet.
7. It may be necessary to bleed air from the pump(s) on your spa if, after start up, your spa pumps
do not operate.
Due to the nature of water flow and hydro-therapy pumps, please be advised that air locking of
pumps may occur. Master Spas has taken measures to reduce the possibility of this, but it still may
occur, especially after refilling a spa. This is not a service covered under warranty.
To relieve and airlock, loosen the union on the discharge of the pump (see arrow on picture of
pump below). Water should leak out. Tighten the union and test the pump for proper jet flow.
If needed repeat process.
Airlock
Pump Union
Slice Valve
8. Adjust water chemistry according to the instructions provided in the “Spa Water
Maintenance Section”.
9. Your spa water will heat approximately 4 -7 degrees per hour. This varies depending on the size
of the spa. Step into the soothing waters of your Master Spa!
Relax and enjoy.

WATER CHEMISTRY TERMS YOU SHOULD KNOW
Before jumping into the Spa Water Maintenance, here are some terms to help you.
1. Parts per million, or ppm: This is a form of measurement used in most pool or spa chemical
readings. Best described as any one million like items of equal size and make up, next to one
unlike item , but of equal size. This would be one part per million.
2. Average size spa: What is it? The national spa and pool institute (NSPI) states; 350 to 400 U.S.
gallons is average. As a general rule, chemical dosages are the same for any spa between 100
and 500 U.S. gallons. Spas over 500 U.S. gallons the dosage would be double. Under 100 U.S.
gallons would be on a case by case basis.
3. Total Alkalinity: This is a measurement of the ability of the water to resist changes in pH. Put
another way, it is the water’s ability to maintain proper pH. Total alkalinity is measured in parts per
million from 0 to 400 plus, with 80 to 150 ppm being the best range for spas. With low alkalinity,
the pH will flip, or change back and forth, and be hard to control. With high alkalinity it becomes
extremely difficult to change the pH.
4. pH or potential hydrogen: This is a measurement of the active acidity in the water, or it is
the measurement of the concentration of active hydrogen ions in the water. The greater the
concentration of active hydrogen ions, the lower the pH. pH is not measured in parts per million,
but on a scale from 0 to 14, with 7 being the neutral. In spas when ever possible, a measurement
between 7.2 and 7.8 is best. Whenever possible, it should be between 7.4 and 7.6. With low pH,
the results can be corroded metals, etched and stained plaster stained fiberglass or acrylic, eye /
skin irritation, rapid chlorine or bromine loss, and total alkalinity destruction. With high pH,
the results can be cloudy water, eye / skin irritation, scale formation and poor chlorine or
bromine efficiency.
5. Shocking: This is when you add either extra chlorine (superchlorinate) by raising the chlorine
level above 8 ppm, or add a non-chlorine shock (potassium monoperoxysulfate or potassium
monopersulfate) to burn off the chloramines or bromamines. A non-chlorine shock acts by
releasing oxygen in the water, which serves the same function as chlorine. The advantage to
using non-chlorine shock, is you can enter the water within 15 minutes after shocking. Using
chlorine, you must wait until the total chlorine reading is below 5 ppm. One thing to remember,
a non-chlorine shock will not kill bacteria or disinfect.
6. Sequestering: This can be defined as the ability to form a chemical complex which remains in
solution, despite the presence of a precipitating agent (i.e. calcium and metals). Common names
for sequestering chemicals are; minquest, stain and scale control, metal-x, spa defender, spa
metal gone, (etc.).
7. Filtration: Filters are necessary to remove particles of dust, dirt, algae, etc. that are continuously
entering the water. If the spa is not operated long enough each day for the filter to do a proper
job, this puts a burden on the chemicals, causing extra expense. Filtration time will depend on the
spa size, pump and filter size, and of course, bather load. A spare cartridge should be kept on
hand to make it easy to frequently clean the cartridge without the need for a long shut down. This
will also allow the cartridge to dry out between usages, which will increase the cartridge life span
as much as twice. Replace the cartridge when the pleats begin to deteriorate. Cartridge cleaning
should be done a minimum of once a month. More often with a heavy bather load.
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