HotSpring LIMELIGHT COLLECTION Ace User manual

LIMELIGHT
®COLLECTION
ACE OWNER’S MANUAL

Contents
Important Safety Instructions
(Read, Follow, and Save all Instructions)
WARNING: Operate the ACE salt water sanitizing system only according to these instructions.
WARNING: To reduce the risk of electric shock, replace damaged cords or cell immediately.
WARNING: Remove power from the spa before performing any maintenance or troubleshooting.
CAUTION: To avoid damage DO NOT insert any objects into the cell.
CAUTION: Prior to using the spa, check water parameters and adjust if necessary.
When using the spa, the chlorine level must be maintained between 1-5 ppm.
Ozone, Granular Dichlor, MPS, and silver are compatible with the ACE system.
The ACE system is NOT compatible with bromine or BaquaSpa®/biguanide.
Disclaimer: This is not an automatic water care system. The system is sized for
the typical user. Heavy users may need to supplement sanitizer generation with
dichlor or MPS.
THE SPA OWNER IS ULTIMATELY RESPONSIBLE FOR MAINTAINING
PROPER SANITARY WATER CONDITIONS.
This Owner’s Manual will acquaint you with the operation of the ACE salt water
sanitizing system. We suggest that you carefully review the entire Owner’s Manual
before using the ACE system. Please keep this manual available for reference. If you
have any questions about any aspect of your ACE salt water sanitizing system’s
set-up, operation, or maintenance, contact your authorized Hot Spring® dealer.
Welcome..................................................1
Product Contents.....................................1
Overview of the ACE System..................1
Spa Owner Responsibilities ....................1
ACE System Status.................................2
Getting Started ........................................3
Ongoing Maintenance .............................4
System Operation....................................5
Features & Settings.................................6
Cell Cleaning ...........................................8
Troubleshooting.......................................9
Important Additional Information............13
Specifications ........................................13
Customer Service..................................13
ACE®Salt Water Sanitizing System
Warranty ................................................14

ACE Salt Water Sanitizing System Page 1
Welcome
Congratulations on your purchase of the ACE
®
salt water sanitizing system which
generates chlorine and powerful mixed oxidants naturally, making it easy to keep
spa water sparkling clean. With proper care, the ACE system allows spa water to
last much longer than traditional water care - up to 12 months.* By extending the life
of your spa water, you will drain and refill your spa less frequently - another way the
ACE system saves you time and helps conserve water.
Product Contents
Your ACE salt water sanitizing system kit also includes:
• Vanishing Act™Calcium Remover
• FreshWater
®Spa Salt
• Cell-cleaning Bottle
• 5-way FreshWater Test Strips
• FreshWater Salt Test Strips
Purchase these items separately from your local Hot Spring dealer. Not
included:
• Clean Screen™ Pre-Filter
• Additional Vanishing Act Calcium Removers (if necessary)
• Hot Spring Freshwater chemicals for balancing and start-up including
Concentrated Chlorinating Granules, pH Up, pH Down. Please note that pH
Lock, or similar products, are not recommended for use with ACE system.
Overview of the ACE System
The ACE salt water sanitizing system features a diamond electrode cell that auto-
matically generates chlorine and mixed oxidants. The ACE system does not contain
a chlorine sensor, so the amount of chlorine generated is based on the output level
you select. The system eliminates the need for daily or weekly maintenance, while
providing dramatically enhanced water quality. For more information, including
helpful videos, visit www.Hotspring.com/ACE.
Spa Owner Responsibilities
Maintain balanced spa water. Always maintain balanced spa water. The pH and
alkalinity levels must stay within the OK range. Use a test strip weekly to check.
Keep total hardness at or below 50 ppm. High levels of calcium in spa water will
lead to more frequent cell cleaning and replacement. Use a test strip to check hard-
ness after topping off spa water. Use the Vanishing Act calcium remover as needed.
Test for chlorine regularly. Use a test strip weekly to check for chlorine in the
water. The recommended chlorine level is 3 ppm. Add FreshWater Concentrated
Chlorinated Granules to supplement the system when needed.
*For more information visit www.hotspring.com/SaveWater

Adjust Output level as needed. To maximize cell life, keep the output level set as
low as possible to meet your needs. If your use pattern changes you will need to
adjust the output level up or down accordingly. The boost function or granular sodium
dichlor can be used on occasions when more chlorine is needed.
30-day check-up. Every 30 days test and balance spa water, confirm your output
setting, rinse filters, and shock with FreshWater
®Concentrated Chlorinating
Granules. A 30-day timer will remind you to perform this step.
Decrease chlorine level as needed. If the spa is not used for an extended amount
of time, and the output level is not adjusted down, the chlorine level may rise. You
can reduce the chlorine level in the spa water by adding hydrogen peroxide.
ACE System Status
The ACE system communicates via the spa's control system, so you can have peace
of mind that the system is functioning.
• Access the ACE menu to view and adjust the ACE system by pressing the
MODE▲ button until the ACE menu is reached. Press the ON ▲ button to enter
the ACE system menu on the control panel.
• The illuminated water care icon on the control panel indicates that the system is
functioning, and flashes when the system requires attention.
• The Hot Spring indicator light on the front of your spa will slowly flash green
when the system requires attention.
Water Care Icon
Hot Spring indicator light
Page 2 ACE Salt Water Sanitizing System

Getting Started
Fill your Spa
Fill your spa with water using the CleanScreen
®
pre-filter with the valve 50% closed
(45º angle). Once your spa has power and the ACE system is installed, follow these
five simple steps.
NOTE: If you are not filling your spa for the first time, clean your filters with Filter
Cleaner or replace with new filters, before refilling spa. Soft water or a water softener
can be used to fill the spa, ensure the hardness is a minimum of 25 ppm. If you are
filling with well water or have a known metal issue, see TREATING FOR METALS in
the troubleshooting section for additional instructions.
System Start-up
1. Test and balance spa water using a 5-way test strip. Measure pH, Total
Alkalinity, and Hardness levels, to determine if your water is in the "OK" ranges
specified for the ACE system (see table below) and adjust as needed.
ACE System
Parameter
Target Min - ”OK” Range - Max
Salt 1750 ppm 1000 ppm 1750 ppm
Hardness 50 ppm 25 ppm 75 ppm
Alkalinity 80 ppm 40 ppm 120 ppm
pH 7.4 7.2 7.6
Chlorine 3 ppm 1 ppm 5 ppm
2. Reduce Hardness to 50 ppm (if Hardness is above 50ppm) using the
Vanishing Act calcium remover, which may take 24 hours or longer. Rinse the
calcium remover before use, and follow instructions on the box. Continue the
start-up process while the calcium remover is working; be sure to reposition the
bag after jets are turned on/off.
Spa Model Salt
(cups) or (grams)
Estimated
Increase in ppm
per 1 cup/290g
Gleam 9.5 2750 170 ppm
Pulse 7 2030 210 ppm
Flair 6 1750 250 ppm
Bolt 5.5 1595 275 ppm
Glow 5 1450 310 ppm
3. Add Salt based on your spa model (see table above) one cup at a time to the
filter compartment with jets running. Run jets for 5 minutes to ensure salt is
ACE Salt Water Sanitizing System Page 3

dissolved. Verify salt level using salt test strips. Note: the water care icon and
On/Ready light may flash, and the System Status may read low until the water is
at or above 95º F.
4. Superchlorinate/Shock spa water by adding FreshWater
®
Concentrated
Chlorinated Granules as directed on the bottle to create an instant chlorine
residual of 5 ppm, allowing the ACE system to address impurities in fill water and
plumbing. Allow jets to run for 5 minutes per jet system, rotating diverter valves.
5. Enter Output level. Press the MODE ▲ button several times from the home
screen to reach the ACE menu. Press the ON ▲ button to enter the ACE system
menu. In the ACE menu, press the MODE ▲ button to scroll until OUTS is
displayed then scroll through Output Levels (0=system off, 10=maximum output)
by pressing the ON ▲ button. Press the OFF ▼button twice to select and
confirm the setting. The water care icon will flash to indicate that the setting has
been updated. The recommended Output Level at start-up is between 3 and 5
depending on the spa size.
24 Hours Later
Remove the Vanishing Act calcium remover and discard in your normal trash.
Using a test strip, test spa water and adjust alkalinity, pH, and hardness as
needed. If hardness is still above 50 ppm, use additional calcium removers at this
time.
Test for chlorine. The ACE system generates active oxygen that breaks down waste
in the water. The active oxygen removes waste before the ACE system will produce a
chlorine residual.
Important: If there is not a measurable amount of chlorine in the spa water after 24
hours, the ACE system is still cleaning the water. If there are contaminants in the fill
water or if you use the spa heavily initially, it may take the ACE system a few days to
clean the spa water and keep up with your chlorine demand.
Manually add FreshWater Concentrated Chlorinated Granules to the water to ac-
tivate a chlorine level of 3 ppm. Repeat this process each day until your test strip
shows that the ACE system is sustaining a 3 ppm residual of chlorine in the water. If
you start off using the spa at a very high frequency, then you may need to start at a
higher Output level in order to meet your needs for chlorine.
Ongoing Maintenance
Weekly: With each use, test spa water with a 5-way strip
- The pH level may increase during the first few weeks after start-up. Add pH
down if needed.
- Use the Vanishing Act calcium remover to reduce hardness to 50 ppm as
needed.
- Adjust output setting to maintain 1-5 ppm chlorine.
Page 4 ACE Salt Water Sanitizing System

Monthly: Test the water, shock & confirm output level
- Ensure water is balanced. Confirm/adjust output setting via the control
panel.
- Shock the water with granular chlorine to 5ppm and flush all jet systems.
- Inspect Cell.
Quarterly: Clean the ACE Cell
- Visually inspect the ACE cell for calcium scale between the plates (if fill water
has hardness over 50ppm inspect cell monthly).
- Clean the cell as needed, or at least once every three months following
instruction on the cell cleaning solution or cell cleaning bottle.
System Operation
Access the ACE menu by pressing the MODE ▲ button several times from the home
screen to reach the ACE menu. Press the ON ▲ button to enter the ACE system
menu on the Limelight collection main control panel. Within the ACE menu, shown
below, you can easily verify the System Status, adjust Output Setting, or activate a
System Boost.
Home Screen
ACE System Menu
System Status (1-9) Output Setting (0-10) System Boost (on/off)
ACE Salt Water Sanitizing System Page 5

Features & Settings
Output Level:
The ACE system cleans the water throughout the day. The output setting of 0 -10 de-
termines how long the cell runs each day. Observe your usage patterns and measure
the chlorine level before each use to guide your output setting. Adjust output up or
down to increase or decrease output. Keep your setting as low as possible to main-
tain 1-5 pm chlorine. Use Boost or add Freshwater Concentrated Chlorine Granules
for occasional high use situations.
Output Settings
0 No output/System off
1 Vacation/low output mode
2-7 Normal use settings (recommended)
8-9 High use settings
10 Maximum system output, equal to Boost (system runs constantly)
Turning the ACE System off
By setting Output to 0, the system will stop generating sanitizers. You will need to
manually maintain the sanitizer level using FreshWater Concentrated Chlorinated
Granules if the ACE system is off.
Vacation or limited use
When the spa is not going to be in use, shock the spa by increasing chlorine to 3-5
ppm and then run the automatic clean cycle. Clean or replace filters. Lower Output to
2. For extended vacations, lower Output to 1 for low output mode.
Boost:
The Boost feature temporarily increases the output setting to the maximum level for
24 hours. The system returns to the previous output setting once the Boost cycle is
over. Use the Boost function to gradually increase the chlorine level prior to a high
use situation, or anytime the chlorine level is below 1-5 ppm.
A Boost will have a greater impact when the output setting is set to a low level, and
less of an impact when the output setting is high. Freshwater Concentrated Chlorine
Granules can be added to create an immediate chlorine residual to remove bather
load and assist the ACE system in building a sanitizer residual.
To increase the chlorine level:
1. In the ACE Menu, press the ON▲ button to enter the BOOST menu.
2. Press the OFF▼ button twice to select and confirm the boost. The BOOST
icon will flash to indicate that the setting has been updated. The system
will automatically initiate a salt test before the boost cycle. Once the test is
complete (up to 20 seconds) the bOOST screen will flash to indicate that the
system is boosting.
Page 6 ACE Salt Water Sanitizing System

3. Press the MODE▲ button to reach EXIT+. Press ON▲ to return to the main
menu.
30 Day Reminder:
You must check your spa water at least once every 30 days. To remind you, the ACE
water care icon and OUT menu will flash.
1. Test and balance spa water using a 5-way test strip. Measure chlorine, pH,
Total Alkalinity, and Hardness levels, to determine if your water is in the “OK”
ranges specified for the ACE system. Adjust as needed. Reduce Hardness to 50
ppm using the Vanishing Act calcium remover if needed.
2. Confirm output setting. Press the MODE ▲ button several times from the
home screen to reach the ACE menu. Press the ON ▲ button to enter the ACE
system menu.To clear the 30 day reminder, press the MODE ▲ button until
OUTS appears. Press the ON ▲ button to change the output value. Press the
OFF▼ button twice to set and confirm new output value. Reset your Output
setting as needed to maintain a 1-5 ppm chlorine residual.
3. Superchlorinate/Shock spa water. Add granular sodium dichlor as directed on
the bottle to bring the spa water to 5ppm. Allow jets to run for 5 minutes per jet
system, rotating any diverter valves.
The 30-day timer resets any time the output setting is adjusted. If the output setting
is not confirmed at the 30 day reminder, the ACE system will automatically lower the
output setting.
Day 30: Maintenance reminder, reconfirm output level
Day 33: Output setting automatically lowered to 2
Day 40: Output setting automatically lowered to 1 (Vacation/Low Output Mode).
Status Test:
The status test measures how optimal the ACE system is performing. To ensure
optimal performance, keep the salt level in the OK range (use salt test strips to verify)
and clean the ACE cell a minimum of every three months.
A Status test can indicate when the cell needs to be clean, or if there is too much or
too little salt in the water. The Status reading updates every 6 hours, and prior to a
Boost. To refresh the Status, press the MODE ▲ button several times from the home
screen to reach the ACE menu. Press the ON ▲ button to enter the ACE system
menu, press the MODE ▲ button until STAT appears. Press the OFF▼ button twice
to set and confirm the Status test. STAT will flash while testing.
When the test is complete the menu will display one of the following:
OK RANGE: STAT 3-6
Your cell and water are working together to clean the water. Regularly check the cell
for calcium scale and test the salt level in the water.
ACE Salt Water Sanitizing System Page 7

LOW RANGE: STAT 1-2
Your system needs your attention and is NOT generating chlorine at this time. Your
cell may be dirty, or your salt level may be low. See TROUBLESHOOTING
HIGH RANGE: STAT 7-9
Your system needs your attention and is NOT generating chlorine at this time. Your
salt level is high. See TROUBLESHOOTING
In addition to the System Status test, a System Status message will also
appear on screen within the ACE menu.
Status Message On Screen Meaning or Action Required
Solid water care Icon Operating normally
Solid Icon - OUT 0 System Off Output setting 0
Solid Icon - OUT1 Low Output Output setting1
BOOSTashing Increasing Chlorine level
Output setting 10 for 24 hours
STATashing System test initiated/in progress
FlashingIconandOUTashing Test water, update Output Setting
Summer timer icon ACE®is disabled for 8 hours when
Summer Timer is active
Flashing Icon and STAT 1-2 Clean/Inspect cell for scale, clean
cell if needed. Test water with salt
test strips and add salt if needed
Flashing icon and STAT 8-9 Non-operational
High salt level detected -
Correct salt level; Clean/Inspect Cell
Flashing water care icon 4 times
per second
Contact Dealer For Service
Cell Cleaning
We recommend periodic cleaning of the ACE cell to maximize the life of your equip-
ment. To reduce frequency of cell cleaning, use of the Vanishing Act® calcium
remover to keep the hardness level of spa water at or below 50 ppm. The cell should
be cleaned a minimum of every 3 months. A dirty cell requires the ACE system to
work harder than necessary, and can shorten the life of the cell. A dirty cell can also
cause your System Status to register low, (in the yellow) and cause the system to go
off line.
The cell can be cleaned with the Freshwater ACE Cell Cleaner, as directed on the
bottle. If there is excessive scale build up a stronger cleaning solution, like a com-
mercial cell cleaner, or a solution of 1 part muriatic pool acid and 10 parts water, can
also be used.
Page 8 ACE Salt Water Sanitizing System

Prevent Cell Damage: NEVER insert anything into the cell or pressure wash it. This
will damage the electrodes.
1. Turn off the power to the spa. Open the spa cover and remove the filter lid.
2. Unscrew gray filter cap and gently pull the cell out of the filter.
3. Inspect the cell for scale by looking between the electrodes.
4. Unscrew the lid to the cleaning bottle included with the ACE® system and fill with
spa water to the fill-line indicated on the bottle. Add 3 tablespoons of pH down to
the cleaning bottle and secure lid. Shake bottle to create cleaning solution.
NOTE: A stronger cleaning solution of 1 pt muriatic pool acid & 10 pt water can be used
as well as a commercial cell cleaner - follow directions on bottle.
5. Remove the lid from the cleaning bottle. Place the cell in the bottle,
ensuring that the bottom of cell is floating.
6. Soak the cell for 10 minutes or until bubbles stop coming from the cell. If bubbles
are still releasing from the cell after 10 minutes, continue soaking until the cell is
clean and all scale is removed.
7. Rinse cell and inspect for cleaning completion.
8. Replace cell into the filter standpipe. Screw on the gray filter cap, replace the
filter lid, and power up the spa. Ensure that the cell is at the bottom of the filter
standpipe by feeling for the pull of the pump’s suction.
Troubleshooting
Treating for Metals:
High Metal content can cause staining and discolored water. It’s important that met-
als are removed before starting up the ACE system.
1. Fill the spa with the Clean Screen®pre-filter, ensuring that the valve is only 50%
open (45° angle).
2. Ensure that there is no ozone unit installed and that the ACE system is turned off
(Output level 0).
3. Add FreshWater Stain & Scale metal control according to the instructions on the
bottle.
4. Place a Vanishing Act Calcium remover over the low speed jet suction.
5. DO NOT add oxidizers (chlorine, ozone, ACE) for at least 24 hours.
Flashing On/Ready light and Water Care Icon
The green ON indicator light, in the Hot Spring logo on the front of your spa will
slowly flash when the ACE system requires attention. The water care icon on the
main control panel will also flash as an indication that some action is needed. Access
the ACE system menu by pressing the MODE ▲ button several times from the home
screen to reach the ACE menu. Press the ON ▲ button to enter the ACE system
menu and review systme status messages.
ACE Salt Water Sanitizing System Page 9

Page 10 ACE Salt Water Sanitizing System
NOTE: You may continue to use your spa as long as the chlorine level on the
FreshWater
®test strip is in the OK range. Add granular chlorine as needed.
System Status Low (1-2):
The system status reading can be affected by cell age, scale build-up (dirty cell), cold
water, high chlorine, dirty filters, or dirty water.
1. Verify water temperature
a. The status reading will read lower in cooler water. To get an accurate
status reading, ensure water is above 95° F
2. Verify salt level
a. Use a salt test strip to measure salt level. If the test strip shows salt
level is low:
b. Add (1) cup of salt to the water and circulate for 5 minutes.
c. Retest with a salt test strip, and repeat until salt level reads in the OK
range
d. Run a manual status test to refresh. If System Status still reads low,
check for other conditions noted above.
3. Verify chlorine level
a. Use a 5-way test strip to measure chlorine level. If the test strip shows
chlorine level is high (above 5 ppm):
b. Add 1 cup hydrogen peroxide with jets running. Check chlorine level
after 10 minutes
c. Retest with a test strip and repeat as needed
4. Visually inspect and clean the cell
a. Follow the cell cleaning process to ensure that scale has not
accumulated on the cell
b. Once the cell has been cleaned, replace the cell in the filter standpipe
c. Run a manual Status Test to refresh
5. Visually inspect and clean filters (refer to spa owner’s manual).
6. If the System Status message continues to read low, it may be an indication that
it is time to replace the cell.
System Status High (7-9):
If the Status indicator is in the red, this typically indicates that there is too much salt in
the water.
1. If the status reading is less than halfway in the red:
a. Use a salt test strip to measure salt level. If the test strip shows salt
level is high:

ACE Salt Water Sanitizing System Page 11
b. Drain 25% of the water from the spa and refill with clean, clear water
c. Retest with a salt test strip, and repeat until salt level reads in the OK
range
d. Run a manual Status Test to refresh.
2. If the salt indicator is more than halfway in the red part, drain completely and refill
following the Start-up and Refill Procedure.
Cloudy Water:
Cloudy water can be the result of number of issues.
• High pH. Use a 5-way FreshWater® test strip to check spa pH level. Add pH
down as needed.
• Low chlorine. Use a 5-way FreshWater test strip. If chlorine is low, manually
add granular dichlor as needed to shock spa for 24 – 48 hours.
• Dirty filter. Check filters and clean as needed (see your spa’s Owner’s
Manual).
No Chlorine Reading:
The ACE system cleans spa water differently than bottled chlorine. Since the water is
cleaned before the chlorine residual is established, only a small chlorine residual is
needed. If there appears to be no chlorine in the water:
• Check Output settings. If you are using the spa heavily, your use level may
require you to increase the Output setting to a higher number.
• Increase Salt Level. Keep the salt level near the high-end of the OK range
(1750 ppm) to ensure maximum chlorine generation.
It is very important that you shock the spa water with FreshWater®Concentrated
Chlorinated Granules at start-up. Skipping this step can prevent the ACE system from
establishing a chlorine residual.
If the ACE system is running at the maximum output setting and still not able to keep
up with your chlorine demands, manually add Chlorine granules.
High Chlorine Level:
The ACE system will continue to produce chlorine according to the selected Output
level, regardless of whether you use your spa or not. If you begin to use your hot tub
less frequently, it is important that you adjust the Output setting down. If the chlorine
level is too high:
• Check Output settings. Check settings. Your Output may require you to
decrease the setting to a lower number.
• Reduce chlorine level. Add 1 cup hydrogen peroxide with jets running.
Check chlorine level after 10 minutes and repeat as needed.

Page 12 ACE Salt Water Sanitizing System
Tips:
• Calcium Hardness: Use the Vanishing Act calcium remover to keep total
hardness levels low and minimize the need for anti-scalant & metal control.
• Heavy Use. Initiate a Boost a few hours prior. Periodically measure the chlo-
rine and add granular sodium dichlor as need.
• MPS use. Granular MPS (Potassium Peroxymonosulfate) can be used in
place of sodium dichlor to establish a sanitizer residual at start-up, and for
shocking the spa at each 30-day check-up. Use FreshWater® MPS test
strips to measure MPS levels in the spa water.
• Metal Treatment. If metals are present be sure to discuss this with your
Hot Spring dealer. Use a Vanishing Act and Stain and Scale control for 24
hours before adding oxidizer from granular chlorine, ozone, or turning the
ACE system on. Excessive use of phosphate anti-scalant will promote high
phosphate levels which can cause scale and weaken chlorine output.
• Mixed Oxidants. To clean the water, the ACE salt water sanitizing system
generates a variety of mixed oxidants, in addition to chlorine. The chlorine
reading on the test strip may not be indicative of total oxidizer level.
• Ozone. The ACE system should be capable of maintaining a sufficient
sanitizer level, and adding ozone is not recommended.
• Phosphates. High levels of phosphates (above 300 ppb) may cause re-
duced sanitizer output, ask your local Hot Spring ® dealer to help you test for
phosphates.
• Salt level. Salt is not consumed during sanitizer production. The salt level is
only reduced by adding water to the spa. Using the spa and adding chemi-
cals will increase the salt level over time.
• Salt buildup. Periodically hose off your spa and the deck or concrete
surrounding your spa after use to prevent salt buildup that can occur from
splash-out.
• Summer Timer. The Summer Timer will decrease the chlorine generation
time of the ACE system. If the spa’s Summer Timer is activated, the Output
will most likely need to be increased to compensate. If chlorine level is low,
adjust Output up by one each day until 1-5 ppm is maintained. Add granular
chlorine to compensate.
• Water Changes. Because the ACE salt water sanitizing system reduces the
amount of chemicals added to the spa water, it is possible to significantly
extend the life of the water. Test your water regularly to ensure safety.

ACE Salt Water Sanitizing System Page 13
Important Additional Information
WARNING: Operating ACE without water flow through the cell can cause a build
up of flammable gas.
WARNING: To reduce the risk of injury, do not permit children to operate this
device.
WARNING: Spa usage and higher temperatures may require higher chlorine
output to maintain proper free available chlorine residuals.
WARNING: Maintaining high salt and chlorine levels above recommended range
can contribute to corrosion of pool or spa equipment.
Check the expiration date of test strips as test results may be inaccurate if used
after that date.
The life expectancy of the electrolytic cell is 14,000 hours of operation under
normal use conditions.
When replacing the cell, only use replacement cells having a label the clearly
states that it is a replacement cell for the chlorine generating ACE device.
Follow all aspects of the local and National Electrical Code(s) when installing
ACE.
Maximum spa water usage temperature is 104º F (40º C). Bathing in spa water
at maximum temperature should not exceed 15 minutes.
Specifications
• System designed to treat 500 gallons (1890 liters).
• The maximum output of hypochlorous acid equivalent to 16 grams of free
available chlorine per day.
• Input:100-240VAC 0.55A 50/60Hz
• Output: 12VDC 1.67A
Customer Service
If you have any questions about your ACE salt water sanitizing system that have
not been answered by this manual, consult your authorized Hot Spring dealer.
Watkins Manufacturing Corporation can be reached at: 1-800-999-4688
(extension 8432) inside the USA or [phone] outside the USA Monday
through Friday, 8 a.m. to 5 p.m. Pacific Standard Time (PST) or e-mail
[email protected].
Watkins Manufacturing Corporation, 1280 Park Center Drive, Vista, CA 92081 USA.

Page 14 ACE Salt Water Sanitizing System
ACE®Salt Water Sanitizing System Warranty
One-Year Limited Warranty
Watkins warrants to you, the original consumer purchaser, that the components
of the ACE salt water sanitizing system will be free from defects in materials and
workmanship for one year.
Extent of Warranty
This warranty extends only to the original consumer purchaser of the ACE salt
water sanitizing system when purchased and originally installed within the
boundaries of the United States. If the ACE salt water sanitizing system is
purchased outside the United States other warranties may apply. See your local
Hot Spring dealer for details. This warranty begins upon installation of the spa.
This warranty terminates upon any transfer of ownership, or if the spa is installed
or relocated outside the boundaries of the United States by the original consumer
purchaser prior to the expiration of the warranty period.
Warranty Performance
To make a claim under this warranty, contact your dealer. In the event you are
unable to obtain service from the dealer, please contact Watkins Manufacturing
Corporation, 1280 Park Center Drive, Vista, California, 92081. Attn: Customer
Service Department [phone] inside the USA or [phone] outside
the USA or via e-mail, [email protected]. You must give Watkins and/or
your dealer written notice of any warranty claim, along with a copy of your original
purchase receipt indicating the date of the purchase, within ten (10) days of the
time you discover the claim. Watkins reserves the right to inspect the malfunction
or defect on location.
Watkins or its Authorized Service Agent will repair any defects covered by this
warranty. Except as described herein, you will not be charged for parts, labor or
the freight costs for parts necessary to repair the ACE system for defects covered
by this warranty. In some cases, the servicing dealer may charge you a reasona-
ble repairperson travel/service charge that is not covered by this warranty. Please
contact the dealer for information regarding any such charges.
Limitations
Except as described above, this warranty does not cover defects or damage due
to normal wear and tear, improper installation, alteration without Watkins’ prior
written consent, accident, acts of God, misuse, abuse, commercial or industrial
use, use of an accessory not approved by Watkins, failure to follow Watkins’
Owner’s manual, or repairs made or attempted by anyone other than an
authorized representative of Watkins. Alteration includes, but is not limited to, any
component change, or electrical conversion. Visit www.hotspring.com or contact
your dealer for a list of manufacturer approved accessories.

ACE Salt Water Sanitizing System Page 15
Disclaimers
TO THE EXTENT PERMITTED BY LAW, WATKINS SHALL NOT BE LIABLE
FOR LOSS OF USE OF THE SPA OR OTHER INCIDENTAL OR
CONSEQUENTIAL COSTS, EXPENSES OR DAMAGES, INCLUDING BUT
NOT LIMITED TO THE REMOVAL OF ANY DECK OR CUSTOM FIXTURE OR
ANY COST TO REMOVE OR REINSTALL THE SPA, IF NEEDED. Some states
do not allow limitation or exclusion of incidental or consequential damages, so
the above limitations or exclusions may not apply to you. ANY IMPLIED
WARRANTIES, INCLUDING THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
LIMITED TO THE DURATION OF THE APPLICABLE WARRANTY STATED
ABOVE. Some states do not allow limitations on how long an implied warranty
may last, so the above limitations may not apply to you.
Legal Remedies
This warranty gives you specific legal rights, and you may have other rights
which vary from state to state.

IMPORTANT: Watkins Manufacturing Corporation reserves the right to change
specifications or design without notification and without incurring any obligation.
Watkins Manufacturing Corporation
1280 Park Center Drive
Vista, California 92081
USA
Part #302647, REV. C (7/14)
©2014 Watkins Manufacturing Corporation. ACE, Hot Spring, Limelight, FreshWater, Clean Screen
and Vanishing Act are trademarks of Watkins Manufacturing Corporation.
EPA Establishment Number 73081-CA-001