Hydropool SERENITY User manual

SERENITY HOT TUBS OWNER’S MANUAL
Hydropool Inc.
335 Superior Blvd
Mississauga, ON, Canada L5T 2L6
Tel: [phone]
Toll Free: 1.800.465.2933
Fax: [phone]
Email: [e-mail]
www.hydropoolhottubs.com
Contents subject to change without notice
BJBA

2
TABLE OF
CONTENTS
Letter of introduction 3
Important User Safety Instructions 4
Warnings 4
Hyperthermia 5
Choosing the Right Location 6-7
Indoor Locations 6
Outdoor Locations 6
General Installation Considerations 7
Special Considerations 8
Indoor Installations 8
Outdoor Installations 8
Site Preparation 8-13
Above Ground Installations 8
In-ground & Partial In-ground Installations 9
Equipment Accessibility & Protection 10
Unloading / Handling Your Hot Tub 10
Important Electrical Safety Instructions 11
GFCI / RCD Application Guide & Wire Size 11
North American GFCI Installation Diagrams 12
European RCD Installation Diagrams 13
Filling, Checking and Starting your hot tub 15
Pump Priming / Releasing an Air Lock 16
Hydropool Serenity Control Systems
North America / Europe 17-23
4300 / 4500 / 6600 / SE4L & SE5L Controls 18
5900 / 6800 & 6900 Controls 19
Topside Control Panel Display Messages 22
Variable Air Therapy System Control 23
(Optional)
Hydroclear Pure Water System 24
(Optional)
Hot Tub Water Balance 25
General Overview 25
Initial Fill 26
Glossary of Water Maintenance Terms 27
Water Balance Summary Chart 28
Water Balance Troubleshooting 28
Routine Hot Tub Maintenance 30-34
Daily, Weekly, Monthly, Quarterly 30
Cleaning the Skimmer Basket 30
Cartridge Filter – Removal / Cleaning 31
Changing your Hot Tub Water 31
Serenity Filter Grill and Leaf Bag 32
Water Softeners 33
Each Time Before Filling the Hot Tub 33
Draining the Spa 33
Cleaning the Acrylic Surface 34
Safety Hard Cover 34
Protecting your Cabinet Finish 35
Soft Stride Floor System 35
Winterizing your Hydropool Hot Tub 36
What to do in the event of
Power Fluctuations 37
Cold Weather Power Failure 37
Wiring Diagrams 38-39
NOTE: Product specifications, warnings and labels are subject to change without notice.
This user’s manual should be used as a guide only. For further information, please contact
your independent Hydropool dealer.

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On behalf of everyone at the company, we thank you for your decision to purchase a Hydropool hot
tub.
Recognized for quality worldwide, we are confident that your new hot tub will provide you, your family
and friends, with years of enjoyment and fulfill your hydrotherapy needs.
Hydropool hot tubs are not only healthful and relaxing, they can even add value to your home.
Please take the time to carefully read and understand all the safety, installation and operating
instructions in this manual before electrically connecting your hot tub and adding water.
The following pages contain valuable information and pointers that will save you both time and
money, as well as help you to simplify upkeep and maintenance.
Since we manufactured our first hot tub in 1985, the Hydropool team has been dedicated to
producing a quality product catering to maximum hydrotherapy, comfort, energy efficiency and ease
of operation.
We are confident that as you become familiar with various safety and maintenance features of your
new hot tub you will be satisfied that you made the right decision in purchasing a Hydropool hot tub.
Happy hot tubbing…
David Jackson

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SAVE THESE INSTRUCTIONS
IMPORTANT SAVE THESE INSTRUCTION
Your physiological response to hot water is subjective and depends on your age, health, and medical
history. If you don’t know your tolerance to hot water, or if you get a headache, or become dizzy or
nauseous when using your hot tub, get out and cool off immediately.
1. CHILDREN SHOULD NOT USE SPAS OR HOT TUBS WITHOUT ADULT SUPERVISION.
2. DO NOT USE SPAS OR HOT TUBS UNLESS ALL SUCTION GUARDS ARE INSTALLED TO PREVENT BODY AND HAIR
ENTRAPMENT.
3. PEOPLE USING MEDICATIONS AND/OR HAVING ANY ADVERSE MEDICAL HISTORY SHOULD CONSULT A PHYSICIAN BEFORE
USING A SPA OR HOT TUB.
4. PEOPLE WITH INFECTIOUS DISEASES SHOULD NOT USE A SPA OR HOT TUB.
5. TO AVOID INJURY, EXERCISE CARE WHEN ENTERING OR EXITING THE SPA OR HOT TUB.
6. DO NOT USE DRUGS OR ALCOHOL BEFORE OR DURING THE USE OF A SPA OR HOT TUB, TO AVOID UNCONSCIOUSNESS AND
POSSIBLE DROWNING.
7. PREGNANT OR POSSIBLE PREGNANT WOMEN SHOULD CONSULT A PHYSICIAN BEFORE USING A SPA OR HOT TUB.
8. WATER TEMPERATURE IN EXCESS OF 38oC (100oF) MAY BE INJUROUS TO YOUR HEALTH.
9. BEFORE ENTERING THE SPA OR HOT TUB, MEASURE THE WATER TEMPERATURE WITH AN ACCURATE THERMOMETER.
10. DO NOT USE A SPA OR HOT TUB IMMEDIATELY FOLLOWING STRENUOUS EXERCISE.
11. PROLONGED IMMERSION IN A SPA OR HOT TUB MAY BE INJURIOUS TO YOUR HEALTH.
12. DO NOT PERMIT OR USE ELECTRIC APPLIANCES (SUCH AS LIGHT, TELEPHONE, RADIO OR TELEVISION) WITHIN 1.5M (5FT) OF
THIS SPA OR HOT TUB.
13. CHILDREN SHOULD NOT ENTER A HOT TUB WHERE THE WATER TEMPERATURE EXCEEDS BODY TEMPERATURE (37oC / 98.6oF).
14. DO NOT ALLOW CHILDREN TO SUBMERGE THEIR HEAD UNDER WATER.
15. NEVER OPERATE THE HOT TUB PUMP AT HIGH SPEED WITHOUT HAVING ALL SUCTION AND RETURN LINES OPEN.
16. ALWAYS KEEP THE HARDCOVER INSTALLED AND LOCKED WHEN THE HOT TUB IS NOT IN USE.
17. TEST THE GFCI (GROUND FAULT CIRCUIT INTERRUPTER) MONTHLY.
18. POST EMERGENCY PHONE NUMBERS FOR POLICE, FIRE DEPARTMENT, AND AMBULANCE AT THE NEAREST PHONE.
19. TO REDUCE THE RISK OF INJURY
THE WATER IS A SPA SHOULD NEVER EXCEED 40oC (104oF). WATER TEMPERATURES BETWEEN 38oC (100oF) AND 40oC
(104oF) ARE CONSIDERED SAFE FOR A HEALTHY ADULT. LOWER WATER TEMPERATURES ARE RECOMMENDED FOR
YOUNG CHILDREN AND WHEN SPA USE EXCEEDS 10 MINUTES.
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 38oC (100oF).
BEFORE ENTERING A SPA, THE USER SHALL MEASURE THE WATER TEMPERATURE SINCE THE TOLERANCE FOR
WATER TEMPERATURE-REGULATING DEVICES VARIES.
THE USE OF ALCOHOL, DRUGS, OR MEDICATION BEFORE OR DURING SPA USE MAY LEAD TO UNCONSCIOUSNESS,
WITH THE POSSIBILITY OF DROWNING.
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.
PERSONS USING MEDICATION SHOULD CONSULT A PHYSICIAN BEFORE USING A SPA SINC SOME MEDICATION MAY
INDUCE DROWSINESS WHILE OTHER MEDICATION MAY EFFECT HEART RATE, BLOOD PRESSURE AND CIRCULATION.
WARNING

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SAVE THESE INSTRUCTIONS
IMPORTANT SAVE THESE INSTRUCTION
Your physiological response to hot water is subjective and depends on your age, health, and medical
history. If you don’t know your tolerance to hot water, or if you get a headache, or become dizzy or
nauseous when using your hot tub, get out and cool off immediately.
1. MAINTAIN WATER CHEMISTRY IN ACCORDANCE WITH THE MANUFACTURER’S INSTRUCTIONS.
1. RISK OF ACCIDENTAL DROWNING, EXTREME CAUTION MUST BE EXERCISED TO PREVENT UNAUTHORIZED ACCESS BY
CHILDREN. TO AVOID ACCIDENTS, ENSURE THAT CHILDREN CAN’T USE THE SPA UNLESS THEY ARE SUPERVISED AT ALL
TIMES.
2. 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 FITTING OR THE PUMP, BE SURE THAT THE FLOW RATES ARE
COMPATIBLE. NEVER OPERATE THE 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.
3. RISK OF ELECTRIC SHOCK. INSTALL AT LEAST 1.5M (5FT) FROM ALL METAL SURFACES. AS AN ALTERNATIVE, A SPA MAYBE
INSTALLED WITHIN 1.5M (5FT) OF METAL SURFACES IF EACH METAL SURFACE IS PERMANENTLY CONNECTED BY A MINIMUM 8
AWG (8.4 mm2) SOLID COPPER CONDUCTOR TO THE WIRE CONNECTOR ON THE TERMINAL BOX THA IS PROVIDED FOR THIS
PURPOSE.
4. RISK OF ELECTRIC SHOCK. DO NOT PERMIT ANY APPLIANCE, SUCH AS A LIGHT, TELEPHONE, RADIO, OR TELEVISION, WITHIN
1.5M (5FT) OF THE SPA.
HYPERTHERMIA
CAUTION
DANGER
Since your hot tub can be set to reach temperatures of 40oC (104oF), users should
be aware that extended submersion in water that exceeds normal body temperature
can lead to hyperthermia.
The causes, symptoms and effects of hyperthermia may be described as follows:
Hyperthermia occurs when the internal temperature of the body reaches several
degrees above the normal body temperature of 37oC (98.6oF). The symptoms of
hyperthermia include drowsiness, lethargy, and an increase in the internal
temperature of the body. The effects of hyperthermia include:
Unawareness of impending hazard
Failure to perceive heat
Failure to recognize the need to exit the hot tub
Physical inability to exit the hot tub
Fetal damage in pregnant women
Unconsciousness resulting in danger of drowning.
If you sense any symptoms of hyperthermia, safely exit the hot tub
Immediately.
WARNING
THE USE OF ALCOHOL, DRUGS OR
MEDICATION CAN SIGNIFICANTLY
INCREASE THE RISK OF FATAL
HYPERTHERMIA.

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CHOOSING THE RIGHT LOCATION
Your Hydropool hot tub can be installed indoors or out, on the ground, in the ground or half-and-half. The following
information will assist you in choosing the right location for your individual needs. When making your decision, always
remember that hot tubs can be enjoyed year-round, indoors or out, regardless of the climate. Many Hydropool owners
report that their favourite time to use a hot tub is in the cooler fall and winter months, while others praise the enjoyment of
using their hot tub in warmer spring and summer months.
INDOOR LOCATIONS
If members of your family are not cold weather enthusiasts, or if your backyard or patio area is not suitable for a hot tub
installation, then an indoor location for you hot tub may be your best or only choice. You may wish to create an exercise /
spa area in your home, or install your hot tub in a glass solarium or four-season room adjoining your home. Indoor
installations not only add a unique look and appeal to your home, they provide the privacy and controlled climate to
ensure that use and enjoyment of your hot tub is maximized. If you should choose an indoor location, you will find further
information as outlined in the section “SPECIAL CONSIDERATIONS FOR INDOOR INSTALLATIONS”.
OUTDOOR LOCATIONS
For a variety of reasons, outdoor locations are a far more popular choice. Some of the reasons include:
Limited indoor space
Delivery complications due to door openings, stairwells, etc.
Limited budget (indoor installations usually also involve interior home renovations)
Desire for an outdoor entertainment center
Hot tub is being installed adjacent to an existing or planned swimming pool
Concerns over splashing water inside the home
For those who choose an outdoor location, hot tub operating temperatures can be adjusted to match the season. In colder
months, many owners will operate their hot tub in the range of 38-40oC (100-104oF). During warmer months, an
operating temperature of 36-37oC (97-99oF) will provide a refreshing retreat. If you should choose and outdoor location,
you will find further information as outlined in the section “SPECIAL CONSIDERATIONS FOR OUTDOOR
INSTALLATIONS”

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GENERAL INSTALLATION CONSIDERATIONS
1. Your HYDROPOOL hot tub is a self-contained pre-plumbed unit, so that no on-site plumbing
connections to the residential water supply or drain are required.
2. Ensure that your HYDROPOOL hot tub is properly supported by either a level concrete pad, or a
properly constructed deck capable of supporting 1220 kg/m2 (250 lbs/ft2). If there is a possibility that
the pad could shift by freezing / thawing ground movement (such as in clay regions, and/or areas with
high water tables) concrete footings extending below the frost line are recommended.
3. Decking should be chosen and constructed in a manner that minimizes the chance of slipping or falling.
4. If you do not have a factory installed insulated cabinet, it is assumed that you are building your own
custom cabinet, tiling or decking.
Please consider the following:
a. Your HYDROPOOL hot tub is self-supporting on its base. The cabinet should be decorative only, not
for support. Never suspend the hot tub from the deck or cabinet.
b. Where the hot tub is not equipped with a factory installed cabinet, it is the installer’s responsibility to
ensure all electrical equipment is completely weather protected and meets all of the regulatory
requirements.
c. Always provide adequate access for servicing the support equipment.
d. Decking must be constructed to allow repair access around the entire hot tub.
e. In remote equipment or no-cabinet installations, you may add extra insulation, but the equipment area
must have adequate cross-flow ventilation.
5. Installation of a safety grab rail or reachable support for use when entering or exiting the hot tub is
recommended.
6. A nearby garden hose connection is recommended for filling and “topping up” the hot tub.
The hot tub equipment and all electrical plugs, outlets and lights within 1.5m (5ft) of the hot tub must
be GFCI protected. Consult your electrician or local electrical authority for further details.
Access to the hot tub must always be secured:
Outdoors – in accordance with local property by-laws and/or via an approved fence with a self-closing
gate and a safety hardcover;
Indoors – by a lockable door and a safety hardcover.
WARNING

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SPECIAL CONSIDERATIONS
INDOOR INSTALLATIONS
It is beneficial to have the hot tub room located near a wash room and shower facilities
The hot tub room should have a floor drain to handle splash water, a window, outside exhaust fan or
humidistat controlled exhaust fan for ventilation and a humidifier.
Consider plumbing a water tap and drain location nearly to facilitate draining and top-up.
Always provide adequate ventilation for the support equipment.
Consult your local Hydropool retailer for further information.
OUTDOOR INSTALLATIONS
Contact your local building code department to determine if a building permit is necessary and for
information on applicable bylaws (distance from property lines, buildings, fencing requirements, etc.)
If you are doing excavating, contact your local gas, electric, and cable-company to ensure that there
are no underground lines.
Locate the hot tub, where practical, within close distance of a door to the house to maximize potential
winter use.
Ensure that all hot tub support equipment is easily accessible and protected from the elements.
The hot tub support equipment is designed for indoor (out of direct elements) use. When your
HYDROPOOL hot tub is equipped with a factory-installed cabinet, and installed as per the guidelines of
this manual, the equipment will be adequately protected. If the hot tub is shipped without a cabinet, your
custom cabinet or other structure must be designed to supply protection for the hot tub support
equipment from rain, snow, splash water, etc., bit still be designed in a manner to ensure adequate
ventilation.
SITE PREPARATION
ABOVE-GROUND INSTALLATIONS
Where the hot tub is a “stand alone” above-ground installation to be installed in regions where freeze/thaw
conditions may occur, a level patio stone or pre-formed paver type base may be sufficient if there is no abutting
deck(s) that could be damaged during potential seasonal movement of the ground. The potential drawback to
this type of base is that splash water could eventually de-stabilize the ground under the base, with the resultant
shift of the support base causing damage to the hot tub structure.
For best results, we commend the installation of a level concrete pad:
Dig out and level the ground 20-30 cm (8-12 inches) below your desired base level.
Install 10-15 cm (4-6 inches) of crushed stone.
Next, install 10-15 cm (4-6 inches) of poured concrete.
Level the concrete and apply a broom-type finish.
We recommend that the pad be made 15cm (6 inches) larger than the hot tub on three sides and
1m (3 feet) larger on the side where the access steps and/or planters will be installed.
Hot tub must be installed on a level pad.

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In regions where freeze/thaw occurs, or there will be custom decking abutting the hot tub we recommend the
installation of sono-tubes beneath the pad to prevent shifting.
IN-GROUND AND PARTIAL IN-GROUND INSTALLATIONS
For units being installed fully or partially in the ground, the type of support will again vary based on whether or
not the tub is being installed in an area with freeze/thaw conditions. Hydropool does not recommend back-
filling full in-ground or partial in-ground installations.
Non-freezing climates – it is sufficient to ensure that the base of the hole cavity created for the tub has
a dry, stable, compacted level base and proper drainage.
Climates where freeze/thaw occurs – it is necessary that a poured level reinforced concrete base,
complete with concrete footings be installed as outlined in the section ABOVE-GROUND
INSTALLATIONS.
Areas with a high ground water table – a level concrete base, as well as a concrete or wood retaining wall to
hold back the earth, is recommended. This forms a box or bunker, in which the hot tub is placed.
ALWAYS ensure that there is good drainage, via a properly designed French drain (gravel) system
and/or sump pump, to prevent ground water flooding damage to the support equipment or hot tub
structure.
Install protective waterproof conduit to house any cables that will be buried.
Access for future service must be considered at the time of design and installation. You must be able to
access all sides and areas of your hot tub. Difficult access will result in supplemental service labor
charges not covered by the factory warranty. Consider easily removable deck materials.
Make sure the hot tub is tested for 48 hours before you prepare the installation of the surrounding/finish
deck around your hot tub. Even though all units are tested in our plant, some transport/site handling
damage can occur and we suggest you make sure the tub is perfectly waterproof before finalizing your
installation.

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EQUIPMENT ACCESSIBILITY AND PROTECTION
The equipment must be located in an area where it will remain serviceable, dry and will not be exposed to rain,
snow or ground water.
UNLOADING / HANDLING YOUR HOT TUB
All Hydropool hot tubs are shipped with a protective layer of foam wrap, cardboard and plastic film. Each hot
tub is factory strapped to a wooden skid. If your hot tub is to be delivered by your local dealer, it will generally
arrive on a flat-bed truck or low profile trailer. Most dealers are equipped with the necessary equipment to
maneuver the hot tub from the truck to the dolly or cart that will be used to move your hot tub to the installation
location.
Should your hot tub arrive in a common closed box trailer, it may be necessary to arrange with a local towing
company for a tilt and load tow truck, with a pulley winch system, to pull the skid from the larger trailer to the
lower profile tow truck flat bed. The hot tub can be gently slid off the low profile trailer and positioned on its side
on a cart or dolly on its back side only.
Most Hydropool models require a clearance width of at least 100 cm (39 inches) to allow movement of the unit
on its side through alley-ways, fence openings, etc. Where this is not possible, the use of a crane to lift the hot
tub from the truck or trailer over the house to the patio or yard is often a simple and economical option.
Do not move or place the hot tub on the side where the equipment is located as damage could
occur.
Never roll or flip the hot tub over end as the cabinet could get damaged.
Never lift or handle the hot tub by the plumbing.
Make sure that there is sufficient assistance to gently slide the hot tub off the dolly or cart to the
support base without any damage.
Important Note: Damage caused during transportation of by improper handling is not covered by the
factory warranty.
WARNING

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IMPORTANT ELECTRICAL SAFETY INSTRUCTIONS
SAFETY COMES FIRST, WHEN INSTALLING AND USING THIS ELECTRICAL EQUIPMENT, BASIC
SAFETY PRECAUTIONS MUST ALWAYS BE FOLLOWED!
1. READ AND FOLLOW ALL INSTRUCTIONS
2. Electrical installation must be completed by a qualified electrician in accordance with all National,
Regional and local codes and regulations in effect at the time of installation.
3. Connect only to a dedicated circuit protected by a class “A” two-pole ground fault circuit interrupter
(GFCI).
4. USE COPPER CONDUCTORS ONLY!
5. The hot tub equipment and all electrical plugs, outlets and lights within 1.5m (5 feet) of the unit must be
GFCI protected. Consult your local electrician or local electrical authority for further details.
6. A green colored terminal or a terminal marked “G”, “GR”, “Ground” or “Grounding” 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 the equipment.
7. 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 hot tub to these terminals with an insulated or bare copper conductor not
smaller than No. 6 AWG (Canada / Europe) / No 8 AWG (USA).
8. All field installed metal components such as rails, ladders, drains or other similar hardware within 3m
(10 feet) of the hot tub shall be bonded to the equipment grounding bus with copper conductors not
smaller than No. 6 AWG.
IMPORTANT NOTE:
This guide is for standard installations where the wire run is 15m (50 feet) or less. For longer runs,
consult a qualified electrician.
GFCI/RCD APPLICATION GUIDE FOR HYDROPOOL SERENITY SERIES
FIGURE 1: ELECTRICAL CONDUIT LOCATION
NORTH AMERICA
SE4L / SE5L models 15A
4300 / 4500/ 6600 models 40A
5900 / 6800 / 6900 models 50A
EUROPE
All models 20A

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IMPORTANT NOTE: (FIGURE 1)
The following dimensions can be used to determine the proper location of submerged conduits in concrete slab
installations. The dimensions are made from the outside of the spa / hot tub frame with the access for panels
removed. The topside control panel is shown at the bottom of the diagram as a reference.
WIRE SIZE
NORTH AMERICA
The minimum wire size for systems that require a 40A GFCI is #8/3 c/w ground (also referred to as #8
gauge / 4 conductor).
The minimum wire size for systems that require a 50A GFCI is #8/3 c/w ground (also referred to as #8
gauge / 4 conductor).
EUROPE
Standards for amperage breakers may vary from country to country in the CE controlled area. Please consult
your local installer for advice on breaker level and wire specifications. Some examples are below:
Breaker of 13A – wire must be 1.5mm2
Breaker of 16A – wire must be 2.5mm2
Breaker of 20A – wire must be 4.0mm2
Breaker of 32A – wire must be 6.0mm2
NOTE: Please consult your applicable codes related to the size of conductors as they may vary from
what is stated above. Take consideration the length of cable as well and increase as required.

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NORTH AMERICA – GFCI INSTALLATION
Installation of the GFCI – Circuit Breaker, including ampere sizing and selection of conductor size and
type, must be performed by a qualified electrician in accordance with the National Electric Code, or the
Canadian Electrical Code, and all Federal, State/Provincial and local codes and regulations in effect at
the time of installation. Hydropool highly recommends the use of a new Siemens GFCI breaker for all
of its products. Other GFCI’s and older Siemens GFCI’s may have tripping issues.
NOTICE
SIEMENS – 240 VOLT TYPICAL
LEVITON – 120 VOLT TYPICAL

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EUROPE – RCD INSTALLATION
Important Note: Installation of the R.C.D. – Circuit Breaker, including ampere sizing and selection of
conductor size and type, must be performed by a qualified electrician in accordance with National,
Regional and Local Codes and Regulations in effect at the time of installation.
NOTICE
230 VOLT 50 HZ SINGLE PHASE RCD WIRING
230 VOLT 50 HZ DUAL PHASE RCD WIRING
230 VOLT 50 HZ THREE PHASE RCD WIRING

15
FILLING, CHECKING AND STARTING YOUR HOT TUB
FILLING
When adding water for the first time, the hot tub should
be filled through the skimmer opening (helps to prevent
air locks) using a standard garden hose, turning the tap
on slowly to prevent damage to the surface by a jerking
hose connection.
Ensure the handles on the intake and return gate valves
are pulled up and stem locks are in place.
Ensure the drain hose-bib is closed.
Ensure that all jets are open.
Fill the hot tub to the recommended level,
approximately 4 inches above the top of the skimmer
opening.
CHECKING
Although your hot tub was thoroughly water-tested in
the factory, some loosening of fittings can occur during
shipping. Before any decking, tiling or carpeting is
completed around the installation, fill and operate your
hot tub to test for leaks (this ensures easy access and
inexpensive correction). Check all union connections
and plumbing for minor leaks. In the event of a leak,
ensure all union connections and pump plugs are tight
and all o
-
rings / gaskets are in place.
STARTING
Before applying voltage to power up your hot tub, it is
very important that you understand the sequence of
events that occur when the system is activated in order
that the pump can be primed efficiently and damage to
the system can be avoided.
Turn the main power on at your electrical panel.
Follow the control instructions for your particular model
hot tub to put the pump into low speed see section
HYDROPOOL CONTROL SYSTEMS PUMP PRIMING
/ RELEASING AN AIR LOCK.
On some systems a message will appear on the display
indicating that the system is in PUMP PRIMING MODE
(“RUN PMPS PURG AIR”). This mode will last for 4
minutes before automatically entering the normal
operation mode. See complete details for your spa in
section HYDROPOOL CONTROL SYSTEMS.
Definition:
Priming a pump is a term used to describe the process in
which air trapped in the plumbing and pump wet end is
released
GATE VALVE UNIONS
PROPER WATER LEVEL AT SKIMMER OPENING

16
O-RING / GASKET AT THE UNION
RELEASING AN AIR LOCK THROUGH THE
PUMP UNION
STARTING (continued)
The water should start circulating immediately. If the
motor works but if you do not notice water circulating
within the first 15 seconds, the pump may require
priming due to trapped air (referred to as an ‘air lock’).
If the pumps have not self-primed after 2 minutes and
water is not flowing from the jets, DO NOT allow the
pumps to continue to run. Turn power off at the main
house panel (or GFCI) and try releasing the air by
loosening the union on the discharge side of the
pump(s) while the motor is not running. Turn the
power back on. If the pumps do not prime after 15
seconds, sometimes momentarily turning the pump(s)
off and on will help the system prime (Note: do not do
this more than 5 times). Repeat if necessary.
Important: Under NO circumstances should the
pump(s) be allowed to operate without priming beyond
5 minutes, as this may not cause unwarrantable
damage to the pump, it may also cause the control
system to into an overheat condition.
Turn the hydrotherapy pump(s) onto high speed and
recheck for leaks. The control system will
automatically return the pump to low speed after 15
minutes.
Adjust the hot tub heat control at the topside panel to
the desired water temperature.
Adjust water balance (pH, TA, calcium hardness) to
recommended levels and add sanitizer once the water
temperature reaches 20oC (68oF). See section HOT
TUB WATER BALANCE.
Keep insulated safety hard cover on the hot tub, and
the air controls closed during the entire heat up
process.
NOTE:
In order to prevent damage to your pillows caused by
the gassing effect of the chemicals, we do
recommend to remove them when the spa is not in
use. By removing them you will extend considerably
the life length of your pillows. We do design our
pillows to be removed easily in order to make sure
they will not remain in the spa when it’s not in use.

17
HYDROPOOL SERENITY SERIES CONTROL SYSTEMS NORTH AMERICA /
EUROPE GECKO IN.YE3
INITIAL START UP
Before applying voltage to power up your hot tub, it is
very important that you understand the sequence of
events that occur when the system is activated in order
that the pump(s) can be primed efficiently and damage
to the system can be avoided.
PROGRAM MENU
The program menu is accessible by holding down the
Light Key for 5 seconds. In the Program Menu, the
following parameters can be set: clock, filter or purge
cycles, economy mode and temperature units. While in
the program menu, use the Up and Down keys (or
Up/Down Key) to adjust the parameters and the Light
key to jump to the next parameter. The changes will be
saved after the confirmation of the last parameter only.
If there is no action taken for 10 seconds, the system
will exit the program menu without saving any changes.
SETTING THE CLOCK
Enter the program menu by holding down the Light key
for 5 seconds. The display will show the current clock
setting with the hour flashing. Use the arrow keys to
adjust the hour. Press the Light key to adjust the
minutes. Press the Light key to jump to the next
parameter or to the end of the parameters to save time.
TEMPERATURE CONTROL
FUNCTIONALITY AND
ADJUSTMENT
After you exit the programming mode your hot tub will
automatically heat to the factory preset default
temperature of 38oC (100oF).
The temperature shown on the screen is the current
water temperature. Use the UP and DOWN buttons to
set the desired temperature.
The set point icon will appear at the top of the screen.
After 3 seconds without any change to the set
temperature value, the keypad will resume the normal
display.
STANDBY MODE
Pressing the JET key for 5 seconds will enable the
Standby Mode. This mode allows you to stop all outputs
including automatic functions such as filter cycle, heat
request and smart winter mode for 30 minutes to
perform quick spa maintenance. When active, the
display will toggle between the “OFF” message, the
clock and water temperature.

18
HYDROPOOL SERENITY SERIES CONTROL SYSTEMS
NORTH AMERICA / EUROPE
4300, 4500, 6600, SE4L and SE5L MODELS
KEYPAD FUNCTIONS AND DISPLAY ICONS
JET KEY WHICH CONTROLS PUMP 1
ILLUM KEY WHICH CONTROLS THE
LIGHTING AND THE PROGRAMMING
FUNCTIONS
TEMPERATURE DOWN KEY
TEMPERATURE UP KEY

19
HYDROPOOL SERENITY SERIES CONTROL SYSTEMS
NORTH AMERICA / EUROPE
5900, 6800 and 6900 MODELS
KEYPAD FUNCTIONS AND DISPLAY ICONS
JET KEY WHICH CONTROLS PUMP 1
JET KEY WHICH CONTROLS PUMP 2
ILLUM KEY WHICH CONTROLS THE
LIGHTING AND THE PROGRAMMING
FUNCTIONS
TEMPERATURE UP AND DOWN KEY

20
HYDROPOOL SERENITY SERIES CONTROL SYSTEMS NORTH AMERICA /
EUROPE GECKO IN.YE3
PROGRAMMING THE FILTER / PURGE CYCLES
The filter cycle menu consists of the following parameters: The start time (FS), the duration (Fd) and the
frequency (FF)
NOTE: A filter cycle consists of starting all the pumps and blower (if equipped) in high speed for 1 minute
(purge step) then the pump associated with the filter cycle will run in low speed for the remaining duration of
the filter cycle (clean up step).
SETTING THE FILTER CYCLE
After you have programmed the clock, the next parameter is the filter cycle start time. The display will show
FSxx, with “xx” representing the starting hour of the cycle. Use the arrow keys to adjust the hours. Use the
Light Key to jump to the next parameter, filter duration (Fd).
The display will show Fdxx, with “xx” representing the duration in hours of the filter cycle. Use the arrow keys to
adjust the duration. Use the Light Key to jump to the next parameter, the filter frequency (FF).
The display will show FFxx, with “xx” representing the number of cycles per day. Use the arrow keys to adjust
the frequency. Use the Light Key to jump to the next parameter, economy mode (EP).
This mode allows you to lower the temperature set point of the spa by 20oF (11oC) during a certain period of
the day.
The display will show Epx, with “x” representing the state of programming (0 = disabled, 1 = enabled). Use the
arrow keys to enable or disable the economy mode. Use the Light Key to jump to the next parameter, economy
start time (ES).
When the Economy mode is ON, the display will toggle between the “Eco” message, the time and the water
temperature.
The display will show ESxx, with “xx” representing the hour at which the economy mode will become active.
Use the arrow keys to adjust the hour. Use the Light Key to jump to the next parameter, economy duration
(Ed).