Roto Ops AR100 User manual

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UHS & HU2
Spa Owner’s Manual
Version française au verso
PN 378100 Rev I

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OWNER’S INFORMATION
DEALER
Company ___________________________________________________________________
Address ___________________________________________________________________
Phone ___________________________________________________________________
E-mail ___________________________________________________________________
INSTALLER
Company ___________________________________________________________________
Address ___________________________________________________________________
Phone ___________________________________________________________________
SPA
Model (see below) ______________________________________________________________
Serial Number (see below) ______________________________________________________
Color ___________________________________________________________________
Date of Delivery _________________________________________________________________
For the model and serial numbers, locate the white plate to the right or left of the access door, near
the floor.

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TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS…………………………………………………………………………………………………………………………………………………4-6
SELECT A LOCATION…………………………………………………………………………………………………………………………………………………………………………..7
FILLING YOUR SPA……………………………………………………………………………………………………………………………………………………………………………..8
DRAINING YOUR SPA…………………………………………………………………………………………………………………………………………………………………………8
UHS SYSTEM OPERATION…………………………………………………………………………………………………………………………………………………………………..9
HU2 SYSTEM OPERATION…………………………………………………………………………………………………………………………………………………………………10-12
HU2 DISPLAY MESSAGES…………………………………………………………………………………………………………………………………………………………………..12
HU2 CONVERSION FROM 120V TO 240V …………………………………………………………………………………………………………………………………………13-14
HU2 DIP SWITCH SETTINGS……………………………………………………………………………………………………………………………………………………………….15
EQUIPMENT OPERATION: AIR INJECTION VENTURI ADJESTMENT, SURFACE SKIM FILTER, & CLEANING THE FILTER CARTRIDGE…….16
WATER CHEMISTRY………………………………………………………………………………………………………………………………………………………………………….17-18
REPLACING THE LED LIGHT……………………………………………………………………………………………………………………………………………………………….18
FREEZE PROTECTION………………………………………………………………………………………………………………………………………………………………………..19
CLEANING YOU SPA, CARE FOR THE VINYL HARD COVER, AND SVERY DAY SOIL………………………………………………………………………………19
MOST FREQUENTLY ASKED QUESTIONS……………………………………………………………………………………………………………………………………………20
TROUBLESHOOTING GUIDE………………………………………………………………………………………………………………………………………………………………21
GLOSSARY OF TERMS……………………………………………………………………………………………………………………………………………………………………….22
WARRANTY……………………………………………………………………………………………………………………………………………………………………………………….23

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Im mp po or rt ta an nt t S Sa af fe et ty y I In ns st tr ru uc ct ti io on ns s
When installing and using this electrical equipment, basic safety precautions should always be followed, including the following:
READ AND FOLLOW ALL INSTRUCTIONS
1. WARNING: To reduce the risk of injury, do not permit children to use this product unless they are closely supervised at all
times.
2. WARNING: A wire connector is provided on this unit to connect a minimum 6 AWG (4.11 mm) 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.
3. DANGER RISK OF INJURY: (For cord and plug connected units):
a. Replace damaged cord immediately
b. Do not bury cord
c. Connect to a grounded, grounding type receptacle only.
4. WARNING: (For units with a Ground Fault Circuit Interrupter (GFCI): This product is provided with a Ground Fault Circuit
Interrupter GFCI on the end of the spa’s power cord. This GFCI must be tested before each use. With the product
operating depress the “test” button on the GFCI the spa should not operate. Depress the “reset” button on the GFCI. The
product should now operate normally. If the spa fails to operate in this manner, there is a ground current flowing
indicating a possible electric shock. Disconnect the power until the fault has been identified and corrected by a certified
licensed electrician.
5. WARNING: (For permanently installed units):
The electrical supply for this product must include a suitably rated switch or circuit breaker to open all ungrounded
supply conductors to comply with Section 442-20 of the National Electric Code. ANSI / NFPA 70-1987. In addition, all 230
volt installations must be protected by a 230 volt Ground Fault Circuit Interrupter GFCI. Any GFCI circuit breaker used in
the house panel must read current returning through the neutral conductor. 230 volt 2 conductor GFCI circuit breakers
will not operate correctly for your application.
6. 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. For
additional protection, select a cover which is classified by the Underwriters Laboratories Meeting ASTM F1346-91
requirements.
7. DANGER RISK OF INJURY: If your spa is equipped with suction fittings, 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 suction fittings are broken or missing. Never replace a suction
fitting with one less than the flow rate marked on the original suction fitting.
8. 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 (1.5m) of metal surfaces if each metal surface is permanently connected by a minimum 6 AWG
(4.11 mm) solid copper conductor to the wire connector on the terminal box that is provided for this purpose.
9. DANGER RISK OF ELECTRIC SHOCK: Do not permit any electric appliance, such as light, telephone, radio, or television,
within 5 feet (1.5m) of a spa.
10. 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 your children
and when spa use exceeds 10 minutes.
b. Since excessive water temperatures have high potential for 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 spa, the user should measure the water temperature with an accurate thermometer since the
tolerances of water temperature-regulating devices vary.
(Safety instructions continued on next page)

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d. The use of alcohol, drugs, or medication before or during spa use may lead to unconsciousness with the
possibility of drowning.
e. Persons suffering from obesity or with a medical 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.
11. WARNING:
a. People with infectious diseases should not use a spa or hot tub.
b. To avoid injury, exercise care when entering or exiting a spa or hot tub.
c. Do not use a spa or hot tub immediately following strenuous exercise.
d. Prolonged immersion in a spa or hot tub may be injurious to your health.
12. Caution: Maintain water chemistry in accordance to manufacturer’s instructions.
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Ad dd di it ti io on na al l I Im mp po or rt ta an nt t S Sa af fe et ty y P Pr re ec ca au ut ti io on ns s
Your spa can be a source of great pleasure. It offers healthful stimulating recreation and is a delightful fun center for you, your
family and friends. However, it contains large quantities of water and is deep enough to present inherent dangers to life and
health unless the following safety rules are strictly observed.
13. Never permit the spa to be used unless it is attended by at least one person other than the bather.
Someone should be present to lend assistance if the bather should be in trouble due to injuries, cramps, or drowning,
especially in case of children.
14. Always use care in and around your spa.
The spa has many rigid, unyielding parts and many areas that become wet and slippery; these are all potentially
dangerous when rough play is permitted or if care is not used, particularly when entering or leaving the spa.
15. Keep the water sanitary and healthful at all times.
Your filter system will remove suspended particles from the water. Regular application of spa chemicals in proper
quantities will destroy harmful bacteria and prevent formation of algae. Your surface skimmer will remove insects, leaves,
and other debris from the water surface. Unsanitary water is a serious health hazard.
16. The water in your spa must NOT be warmer than 100°- 104° F (38°-40°C).
Always keep an accurate thermometer in the water because your spa’s thermostat may be in error. Use a high quality,
shatterproof thermometer with increments of one degree or less.
The National Spa and Pool Institute consider a temperature of 100°F (38°C) safe and comfortable for a healthy adult.
Most healthy adults can enjoy this water temperature for as long as desired, although it may raise the body temperature
to the water temperature and eventually become uncomfortable (like a fever). At higher water temperatures the soaking
time should be shorter; never soak for more than 20 minutes when the water temperature is 102°F (39°C) or higher. If
you are planning a long rest in the spa, lower the water temperature closer to normal body temperature, about 99°F
(37.2°C). Some people find even lower water temperatures relaxing and pleasing. Try different water temperatures in the
98°-102°F (36.6°-39°C) range until you find what temperatures suit you best.
17. Hot water can raise the body temperature high enough to cause heat stroke.
This can be fatal even to healthy adults. If you have any questions about your own fitness or whether you should soak in
the spa, check with your physician.
18. Prolonged immersion in hot water may induce hyperthermia.
Hyperthermia occurs when internal body temperature reaches a level several degrees above the normal body
temperature of 98.6°F (36.6°C). The symptoms of hyperthermia include: (1) dizziness, (2) fainting, (3) drowsiness, (4)
lethargy, (5) increases in the internal body temperature. The effects of hyperthermia include: (1) unawareness of
impending hazard, (2) failure to perceive heat, (3) failure to recognize the need to exit spa, (4) physical inability to exit
spa, (5) unconsciousness resulting in danger of drowning.
(Safety instructions continued on next page)

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19. WARNING: The use of alcohol, drugs, or medication can greatly increase the risk of fatal hyperthermia in hot tubs or spas.
Despite the popular image of people in spas drinking wine or other alcoholic beverages, DO NOT use alcoholic beverages
before or during spa use. Alcohol is a depressant which causes slowed reflexes and drowsiness, especially in conjunction
with the relaxed soaking in hot water. This can lead to sleep or unconsciousness and possibly result in drowning. Using
your spa with other people who are also drinking is not a preventative measure since they are likely to become similarly
affected by the combinations of alcohol and hot water soaking.
Soaking in hot water causes changes in the circulatory system, such as enlargement of blood vessels near the skin.
Therefore, people with a medical history of heart disease, circulatory problems, diabetes, high or low blood pressure
should check with their physician before using spas. Additionally, people taking medications causing drowsiness, such as
tranquilizers, narcotics, antihistamines, or anticoagulants should not use spas without asking their physician.
20. If equipped, broken or missing drain covers should be replaced immediately.
Accidents can occur when long hair or a body part is trapped by suction from a drain or outlet whose cover is broken or
removed. Children are particularly vulnerable, and they should be warned against danger.
21. WARNING: Do not use electrical appliances in or around your spa. Do not use glass or other breakable items in or around
your spa. Do not remove spa cabinet panels and attempt to make repairs. Do not attempt electrical repairs. Retain a
certified licensed electrician.
22. This spa is for residential use only. It is not intended for commercial use.
SAVE THESE INSTRUCTIONS

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Selecting a location
Before proceeding, please read the Important Safety Instruction at the beginning of this manual.
Spa location check list (more details below checklist):
Is permitting required for construction, electrical, or barriers?
Is the support surface adequate to support the weight of the spa?
Is the support surface adequate to handle water overflow?
Is the support surface impervious to water?
Are there considerations for limiting access by children?
Are there overhead electrical lines?
Will you electrical cord reach an outlet?
Is there adequate room to access the service door, drain, and filter?
Is there any privacy considerations?
Most cities and counties require permits for exterior construction and electrical circuits. Some areas have codes requiring
barriers such as fencing and/or self-closing gates on property to prevent unsupervised access to the property by children.
Your local code enforcement department can provide information on which permits may be required and how to obtain
them before delivery of your spa.
Provide a solid flat level load-bearing surface. The surface must provide a solid foundation with a minimum load bearing
capacity of 75 pounds per square foot (34 kg per 929 sq. cm). Concrete slabs and decks must be designed to support this
weight. The surface must be suitable for a wet location and allow for adequate drainage for overflow water.
Do not locate your spa under overhead power lines or in near proximity to existing buried or exposed electrical circuits.
Childproof Your Spa. Plan for limiting access of children. Precautions such as self-closing, locking gates, access doors,
fencing and other child barriers, as dictated by the site.
Locate your spa so that the GFCI plug and cord will reach a dedicated 120 volt outlet, but not closer than 5 feet (1.5m). A
dedicated outlet is one that does not have other electrical devices operating on the same circuit. This can be checked by
turning off the circuit breaker that supplies the intended outlet and verifying the no other electrical devices no longer
work, such as a refrigerator, dishwasher, washing machine, coffee maker, hair dryer, etc. Do not use an extension cord. To
extend the power cord, find the GFCI plug located below the service door (fig 1). Cut the white strap and gently pull the
GFCI plug and cord to about 12 feet (3.6m). If the cord is tangled, remove the service door (fig 1) to feed the cord through
the hole. Do not c connect to the outlet until the spa is filled with water (see page 8) If your spa is convertible to 240 volts
and you have decided to have it converted, a certified licensed electrician is required for the electrical installation. In this
case, you may want to consult with your electrician before final positioning of your spa. Have your electrician see pages
13 - 14 for conversion instructions.
Allow for Service Access. If you are installing your spa near a wall or with any type of structure on the outside, such as a
gazebo, remember to allow access for service.
Access door. Your model
may vary.
Fig 1
GFCI plug

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
Filling Your Spa
Remove the access door (Fig 1) and assure the drain valve is closed and the cap is secure (fig 2).
Place a garden hose into filter area (Fig 3) and fill the spa with cold (never warm or hot) water 6 to 8 inches (150 to 200
mm) below the top edge of the spa. Do not overfill, as the spa’s water level will rise as each person enters the spa. Always
keep the spa water level above the jet openings.
Draining the spa
Draining your spa on a regular basis rids the spa of dissolved solids and protects your spa equipment from the effects of
residual calcium hardness and total alkalinity problems. Depending upon usage, it may be as often as every three months.
To drain the spa follow these steps:
1. Turn power off to the spa.
1. Remove the access door (Fig 1) and locate the drain valve (Fig 2). .
2. Assure that the drain valve is in the off position (as shown in figure 2). Remove the cap (Fig 2) and attach a
standard garden hose to the drain valve (Fig 4).
3. Route the garden hose to a sewer drain capable of safely assimilating 300 plus gallons of water which may contain
both unsanitary contaminants and chemical residue. Open the drain valve (as shown in Fig 4). The spa drains
slowly.
4. Before refilling your spa, assure that the drain valve is in the off position and the cap is secured (Fig 2).
Valve
Cap
Fig 2
Fig 4
Garden hose
Valve in open
position

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U
UH HS S S Sy ys st te em m O Op pe er ra at ti io on n
If not UHS please see next pages.
Initial Start-Up
From the moment your spa is plug in, it is automatically pre-set to operate until it reaches 100°F (38°C). This process could
take up to 20 hours depending on the initial water temperature. The spa is also preset to filter the water for 1 hour per
day (30) and the clock starts the second you plug it in.
Temperature Adjustment 60°F-104°F (15°C-40°C)
When either of the Accu-temp pads are pressed once, the LCD will display the temperature which has been set.
Each time either one of these pads are pressed again, the temperature will change by 1°. After 5 seconds, the LCD will
automatically display the current spa temperature.
Jets. Press the pad to run the pump on and off. If left running, the pump will automatically turn off after 15 minutes.
Light. Press the pad to turn the spa light on and off. If left on, the light will automatically turn off after 4 hours.
Spa Water Maintenance. This function enables you to program the amount of water filtration time.
Press or and then to enter the programming mode. Once in the programming mode press or to select
the filtration time.
00 In this mode there is no additional filtration.
30 In this mode the water will be filtered for 1 hour every day.
60 In this mode the water will be filtered for 2 hours every day.
To exit press
Standby Mode
This function allows you to disable the equipment when the filter needs to be serviced without disturbing the already
programmed filtration time. Press or and then to enter the standby mode. All spa functions are disabled except
for freeze control. To exit from standby press any button.
Display Messages:
OH “Overheat” (spa is deactivated)
DO NOT ENTER THE WATER. If the spa water has reached 108°F (44°C), remove the spa cover to cool the water. The spa
will remain shut down until the water and the heater sensor cools to 104°F (40°C). At that point press any button to reset
the spa. If the spa will not reset, shut off the power to the spa and call your dealer or service organization.
SN“Non Functional High Temp Sensor” (heater is deactivated)
Open sensor. Call your dealer or service center.
XXX-UHS-XX-X
1 0 2

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HU U2 2 S Sy ys st te em m O Op pe er ra at ti io on n
Initial Start-Up
When your Spa is first activated, it will perform a self diagnostics test showing a series of numbers followed by Pr, then by -
-along with the low speed pump for approximately 7 minutes total. Also the internal clock that keeps track of the filtration
cycles every 12 hours will start at that point. The system is preset to heat up to 100° F (37° C) and it is also preset to run on
low speed for two hours (F2).
Temperature Adjustment
70° F-104° F (21°C-40° C)
When either of the temperature pads or are pressed once, the LCD will display the temperature witch has been
set. Each time either one of this pads are pressed again, the temperature will change by 1°, After 5 seconds, the LCD will
automatically display the current spa temperature.
Jets
Press the pad to run the pump on and off. If left running, the high speed pump will automatically turn off after 30
minutes or low speed in two hours. Time out duration can be adjusted. See page 17 for details.
Light
Press the pad to turn the spa light on. To switch color modes, press the pad again immediately after turning it off. If
left on, the light will automatically turns off after four hours.
Spa Water Maintenance
This function enables you to program the amount of water filtration time.
Press or and to enter the programming mode.
Once in the programming mode press or to select the filtration time.
F2 In this mode the water will be filtered for 2 hours every 12 hours.
F4 In this mode the water will be filtered for 4 hours every 12 hours.
F6 In this mode the water will be filtered for 6 hours every 12 hours.
F8 In this mode the water will be filtered for 8 hours every 12 hours.
FC In this mode the water will be filtered continuously.
To exit press .
Standby Mode (SY)
This function allows you to disable the equipment when the filter requires service without disturbing programmed
filtration time.
Press repeatedly (or hold it down) until it gets to 70° F (21° C) then press it one more time (within a couple of
seconds) to enter the stand by mode. All spa functions are disabled except for freeze control. To exit from standby press
any button and re-enter desire set temperature.
For additional features and display messages, see next pages.
1 0 2
XXX-HU2-XX-X

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H
HU U2 2 A Ad dd di it ti io on na al l F Fu un nc ct ti io on ns s
Spa heating modes
The Heating Mode offers the ability to control your heater in special circumstances. Your spa is preset at the factory to
Standard Mode. However, the Standard Heating Mode can be changed to Economy or Sleep by pressing the or
then button. With each press of the buttons, the display will cycle through the three different modes described
below.
Standard Mode (ST): Your spa is preset to this mode. This mode operates the heater whenever needed to maintain the
programmed spa water temperature. (See Temperature Adjustment page 910).
Economy Mode (EC): This mode operates the heater only during programmed Filtering Cycles (See Spa Water Maintenance
page 1710). This mode is ideal for areas that charge a premium for electricity during peak hours. This mode will maintain
the thermostat setting. If it does not reach the thermostat setting, you may have to allow for more heating time by
increasing the Filtration Cycles.
Sleep Mode (SL): This mode works in the same manner as the Economy Mode except the thermostat setting is
automatically lowered by 20 degrees. This mode is best suited for extended leaves from home when it is not important to
maintain constant water temperature, such as vacations or business trips.
Summer Set Temperature
In hot weather, it is possible for water temperature to exceed the temperature setting. This is especially common when
your temperature setting is lower than air temperature. If the water temperature exceeds the temperature setting more
than 3°F (1°C), the pump will stop running automatically except during filter cycles. Normal operation will resume when
the water temperature cools to below the setting, or the setting is increased above the water temperature.

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HU U2 2 D Di is sp pl la ay y M Me es ss sa ag ge es s
MESSAGE
MEANING
ACTION REQUIRED
No message on display. Power
has been cut off to the spa.
The control panel will be disabled until power returns.
Spa settings will be preserved until next power up.
- -
Temperature unknown.
After the pump has been running for one
minutes, the temperature will be displayed.
H H
Overheat -The spa has shut
down. One of the sensors has
detected 47°C (118°F) at the
heater.
DO NOT ENTER THE WATER. Remove the spa cover and
allow water to cool. Once the heater has cooled, reset
by pushing any button. If spa does not reset, shut off the
power to the spa and call your dealer or service
organization.
O H
Overheat" -The spa has shut
down. One of the sensors has
detected that the spa water is
43°C (110°F).
DO NOT ENTER THE WATER. Remove the spa cover and
allow water to cool. At 41°C (107°F), the spa should
automatically reset. If spa does not reset, shut off the
power to the spa and call your dealer or service
organization
1 C
Ice -Potential freeze condition
detected.
No action required. The pump will automatically activate
regardless of spa status.
S A
Spa is shut down. The sensor
that is plugged into the "A" jack
is not working.
If the problem persists, contact your dealer or service
organization. (May appear temporarily in an overheat
situation and disappear when the heater cools.)
S b
Spa is shut down. The sensor
that is plugged into the "B" jack
is not working.
If the problem persists, contact your dealer or service
organization. (May appear temporarily in an overheat
situation and disappear when the heater cools.)
S N
Sensors are out of balance. If
alternating with spa
temperature, it may just be a
temporary condition. If flashing
by itself, spa is shut down.
If the problem persists, contact your dealer or service
organization.
H L
A significant difference between
temperature sensors has been
detected. This could indicate a
flow problem.
Check water level in spa. Refill if necessary. If the water
level is okay, make sure the pumps have been primed. If
problem persists, contact your dealer or service
organization.
L F
Persistent low flow problems.
(Displays on the fifth occurrence
of "HL" message within 24
hours.) Heater is shut down, but
other spa functions continue to
run normally.
Follow action required for "HL" message. Heating
capability of the spa will not reset automatically; you
may press any button to reset.
D R
Possible inadequate water, poor
flow, or air bubbles in the
heater. Spa is shut down for 15
minutes.
Water level in spa. Refill if necessary. If water level is
okay, make sure the pumps have been primed. Press any
button to reset, or this message automatically will reset
within 15 minutes. If problem persists, contact your
dealer or service organization.
D Y
Water detected in heater.
(Displays on third occurrence of
"DR" message.) Spa is shut
down.
Follow action required for "dr" message. Spa will not
automatically reset. Press any button to reset.

13
The conversion of the HU2 equipment package, from a
factory installed 120 volt system to a hardwired
120/240volt system, must be completed by a certified
licensed electrician. This procedure will convert the
heater from 120 volts (1000 watts) to 240 volts (4000
watts). All other electrical components will remain 120
volts, so it will be necessary to include a neutral wire in
the new electrical service. It will also be necessary to
select how the heater will operate, thereby dictating the
size of the new electrical service. If the heater will
operate only when the low-speed pump is running, then
a 30 amp service will be used and the #10 dip switch will
be set to the low amp position (page 17). If the heater
will operate when both high and low-speed pumps are
running, then a 50 amp service is required and the #10
dip switch will be set in the high amp position.
Regardless of your choice, the following will
also have to be done.
1. Remove and discard the 120 volt GFCI
power cord.
2. Remove and discard the white wire jumper between J28 and J57 (dotted line shown in above diagram.
3. On J11, install small black jumper block on the two pins.
4. Move #10 dip switch to proper position: low amp for a 30 amp service, or high amp for a 50 amp service.
5. When supplying the new 4 wire service, connect line 2 to the terminal indicated by the dotted line in the above
diagram.
Additional wiring information:
GFCI PROTECTION: The new service must be protected with by a GFCI and a disconnect switch. The National Electrical Code requires that spas connected to 240 volts
circuits be equipped with a GFCI and disconnect switch. See National Electric Code Articles 680-12 and 680-42. P1 series spas are not equipped with a 240 volt GFCI or
a disconnect switch. A GFCI must be installed by a certified licensed electrician.
OUTDOOR LOAD CENTER: The addition of an outdoor load center such as a Siemens W0408ML 1125 or equal must be added to the circuit. This type of load center
provides both a GFCI and Disconnect Switch in a convenient configuration as required by the National Electric Code. (See next page for suggested wiring configuration)
ISOLATED, DEDICATED 240 VOLT, 30 OR 50 AMP CIRCUITS ARE REQUIRED An isolated, dedicated 240 volt, 30 or 50 amp circuit is required to provide the power
necessary to properly operate the 240V equipment package.
PERMANENTLY HARD WIRED: All 240 volt operations wiring must be permanently hard wired, installed in grounded conduit and installed in compliance with the
National Electrical Code and all local codes.
WIRE SIZING MUST MEET ELECTRICAL CODES: All installations are different. Wire sizing must meet the National Electrical Code and all local code specifications.
See next pages for more conversion details
H
HU U2 2 C CO ON NV VE ER RS SI IO ON N F FR RO OM M 1 12 20 0V V T TO O 2 24 40 0V V

14
All wiring MUST be in accordance with the National Electrical Code and all local codes
ELECTRICAL DATA FOR THE USE OF CERTIFIED LICENSED ELECTRICIAN
WARNING: Shock Hazard! Under No Circumstances Should This Spa Be Installed By Anyone
Other Than A Certified Licensed Electrician!
REQUIRED WIRING FOR 240 VOLT INSTALLATION

15
DIP SETTINGS 56403-03 VERSION 03
MAIN POWER TO SYSTEM SHOULD BE TURNED OFF BEFORE ADJUSTING DIP
SWITCHES
TEST MODE OFF
1
TEST MODE ON
N/A
2
N/A
DUPLEX PANEL
3
MINI PANEL
N/A MUST BE OFF
4
N/A MUST BE OFF
SEE PUMP TABLE
5
SEE PUMP TABLE
60HZ OPERATION
6
50HZ OPERATION
STD, ECON, SLEEP ALLOWED
7
STANDARD MODE ONLY
DEGREES FAHRENHEIT
8
DEGREES CELSIUS
SEE PUMP TABLE
9
SEE PUMP TABLE
HIGH AMP –HEAT W/P1 HI
10
LOW AMP –NO HEAT W/P1 HI
PUMP TIMEOUTS TABLE
Switch 5
Switch 9
Low speed
High speed
Off
Off
2 Hours
15 Minutes
On
off
2 Hours
30 Minutes
Off
On
15 Minutes
15 Minutes
on
On
30 Minutes
30 Minutes
DIP
SETTINGS

16
E
Eq qu ui ip pm me en nt t O Op pe er ra at ti io on n
Air Injection Venturi Adjustment
Air injection into the massage jet water flow may be controlled by turning the venturi dials located on either side of
the spa.
Surface Skim Filter
The spa’s automatic surface skim filter is designed to remove floating debris and contaminants such as body lotions by
drawing water through a specially formulated filter cartridge. It is critical that this element
be routinely cleaned.
Cleaning the Filter Cartridge
To clean the filter cartridge follow these steps:
1. Turn off power to the spa.
2. Remove the end nut by turning it counter clockwise (Fig 5).
3. Pull up filter cartridge (Fig 5).
4. Remove the cartridge and thoroughly rinse with a garden hose until the cartridge is free of dirt and debris.
5. Return the clean cartridge to the filter well and turn the end nut clockwise until snug.
Fig 5

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Wa at te er r C Ch he em mi is st tr ry y
Spa water chemistry (or water balance) affects the safety of your equipment as well as the appearance of your spa
water. Water balance has five factors: pH, total alkalinity, calcium hardness, temperature and total dissolved solids.
pH is the most critical but total alkalinity and calcium hardness must also be watched closely. Low calcium hardness
can lead to corrosion of equipment, while high calcium hardness can lead to scaling, cloudy water and staining. Water
temperature should never exceed 40°C (104°F), and total dissolved solids should be kept below 1500 PPM.
Algicidal and sanitizing chemicals are either alkaline or acid. Sodium and calcium hyprochlorites are alkaline. Chlorine
gas and practically all other dry chlorine spa products are acid. On the market are a number of bromine sanitizers.
Bromines are usually preferred since they don’t emit a strong chlorine odor.
SEE YOUR SPA WATER EXPERT FOR ADDITIONAL INFORMATION
USE OF CALCIUM HYPOCHLORITES OR TRICHLORS WILL VOID WARRANTY
1. Check and adjust water conditions. You must maintain proper chemical balance to insure safe sanitary conditions
and to prevent your spa from becoming a breeding place for bacteria. This is done by:
A. Test daily and maintain pH between 7.2 and 7.8. Adjust if necessary, above 7.8 use pH decrease, if below 7.2 use
pH Increase. Improper pH can damage spa finish, equipment, cause eye irritation and chemical loss. Use dosage
according to manufacturer’s label.
B. Test alkalinity and maintain at 80 ppm to 140 ppm. Adjust if necessary, above 140 ppm use pH Decrease, if
below 80 ppm use Total Alkalinity Control. Use dosage according to manufacturer’s label.
C. Test daily and maintain proper sanitizer level. It’s recommended to use bromine sanitizer and maintain bromine
at 3.0
5.0 ppm. Typically two or three bathers relaxing in an average spa with 103°F (39°C) temperature will consume
all the bromine sanitizer in about twenty minutes. Therefore, prolonged or heavy use may require additional
bromine to maintain safe sanitary conditions.
D. “Shock” (with a non-chlorine shock) once a week and after each water change. Do not use spa until the bromine
residual has dropped to less than 5.0 ppm. NOTE: Improper pH will cause early corrosion to your pump.
Corrosion is not handled under any warranty.
SPA MAINTENANCE SCHEDULE
DAILY
Test and maintain pH: Ideal range 7.2 - 7.8b.
Test and maintain bromine: Ideal range 3.0 - 5.0 ppm.
WEEKLY
Test and maintain alkalinity 80 - 140 ppm. Shock with a non-chlorine shock.
Add Spa Clear.
MAINTENANCE
Add defoamer as needed.
Inspect filter cartridge every 2 weeks and clean when needed.

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Wa at te er r C Ch he em mi is st tr ry y ( (C Co on nt ti in nu ue ed d) )
It is recommended that the spa be drained regularly depending on its size, location and the frequency of use.
1. Clean filter and cartridge periodically according to manufacturer’s instructions.
2. Keep the spa covered when not in use to reduce the loss of heat and to keep our leaves, dirt, and other
foreign materials from settling in the water.
3. Since the water capacity of your spa is far less than that of a swimming pool, the chemical reaction caused by
the presence of one or more persons in the spa is more rapid and pronounced. For these reasons, it is
important to frequently check the bromine level, the pH level and total alkalinity of water then add the
prescribed chemicals as necessary to maintain the proper chemical balances.
4. If questions or doubts arise regarding quantities and timing or chemical applications to your spa, contact your
spa dealer who can assist you in prescribing the correct program for your spa.
5. Store all chemicals in a cool dry place and in such a manner as to prevent contact by children and pets.
6. When adding chemicals to your spa water, add to the center of the spa with the pump operating. Never add
chemicals to unheated water as this will affect chemical action.
Replacing the LED light.
1. Turn off power to the spa.
2. Using a Philips screwdriver, remove the access vent located on the outside of the spa, directly behind the
filter (Fig 7.1).
3. Reach in and turn the white holder counter clockwise and gently pull it, with the attached wires, out the
access hole (Fig 7.2).
4. Pull the LED light out of the light socket (Fig 7.3).
5. Install a new LED light, attach the white reflector turning clockwise and reattach the access vent with the
screws.

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Fr re ee ez ze e P Pr ro ot te ec ct ti io on n
DO NOT ALLOW THE SPA TO FREEZE
If the spa is to be stored or transported in temperatures of 32°F (0°C) or lower, it is critical that the unit be fully
winterized.
To winterize the spa follow these steps:
1The spa itself must be completely drained of water. See page 8 for draining instructions.
2The drain valve must be in the open position and the cap removed.
3Drain the pump.
HU2 models: remove the pump wet end drain plug (Fig 6.1). Leave this plug out until it is time to refill
the spa.
UHS models: completely loosen the lower pump union and allow water to drain from the plumping
(Fig 6.2). Leave this union loose until it is time to refill the spa.
4The filter cartridge must be removed, dried and stored. See page 16 for instructions for removing the filter
cartridge.
5The spa must be inverted (turned upside down) for at least five minutes to facilitate draining of the internal
plumbing.
CLEANING YOUR SPA
Do not use cleaners or compounds containing harsh abrasives. Also, avoid using heavy-duty rubbing or buffing
compounds. Use a soft liquid cleaner.
CARE OF VINYL HARD COVER
Vinyl coated fabrics are perhaps the most maintenance-free fabrics ever produced and certainly will provide
exceptional service life if given the proper care. Almost all vinyl manufacturers now provide information concerning
the necessary cleaning procedures for their products. In reality, all care maintenance instructions are the same for all
coated fabrics regardless of their manufacturing origin.
Products are now on the market which are manufactured to enhance the beauty and service life of all vinyl. However,
by using methods described below with minimal care and attention, you should enjoy years of satisfaction and pride
with any vinyl coated fabric.
EVERYDAY SOIL
A gentle mixture of any mild soap and warm water will generally dissipate most common soil from the surface. Using
a soft cloth, wash the area to be cleaned and rinse. If stubborn dirt remains, as a stain embedded in the grain of the
vinyl, use a soft brush, and if necessary, a touch of cleaning powder. In both situations, rinse and dry with a soft cloth

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Mo os st t F Fr re eq qu ue en nt tl ly y A As sk ke ed d Q Qu ue es st ti io on ns s
1. Why does my spa not shut off? Your spa is designed to run from the time you plug it in to run until it reaches
your desired temperature. Once desired temperature is reached then you can control the on/off with the
buttons on the top control. For example: On the initial startup the spa will run for approximately 18 hours to
reach 38°C (100°F). At that point the spa will shut off, and then the spa will maintain your desired temperature
settings. Keep in mind that anytime power is disrupted from the spa, the spa will reset itself and run until it
reaches the spa’s default settings.
2. Why does my spa turn on late at night? The spa is designed to filtrate every 12 hours. The clock starts the
second you plug it in. Recommend unplugging and plugging back in between 7 and 8. This means the spa will
come on every 12 hours at the designated time and filter the amount of time you have it set for.
3. Why is my spa hotter than it is set for? If your spa is set for 101°F (38°C) but it reads 103°F (39°C) most likely
your filter cycle is set too high. Adjust your filter cycle down to the next lower setting or F2. Remember, when
the spa is running to filtrate it is also heating.
4. Why is my spa not heating? All spas heat at approximately 1.5° F (1°C) per hour. If your water temperature is
70°F (21°C) when you first fill your spa it will take approx. 20 hours to reach 100°F (38°C). Remember, it is
imperative to keep your safety cover on and the air control valves turned off while heating.
5. How do I change the light bulb? See page 18.
6. How many gallons does my spa hold?
Model
First three characters on
rating plate
AR100
ESC
AR150
EZS
AR200
ECL
AR300
TRI
AR400
X4H
AR500
X5H
AR600
EZB
Gallons
200
200
210
185
200
220
250
7. I see water on the floor. What does this mean? The cover can accumulate condensation between the seams
and run down the sides of the spa. You can verify that water is coming from the cover by squeezing the seam,
or by repositioning the cover so that the seam is on a different side. This only occurs when the temperature
and humidity are at certain levels.
8. What do I do if I cannot fix a problem?
Contact the dealer from whom you purchased the spa.