Kohler K1122GRANY, K1122GRAK4, K1122GRA96, K1122GRAG9, K1122GRA95 Installation Manual
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Installation and Care Guide
Bath with Airjets
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1198326-2-D
Installation Instructions
WARNING: When using electrical products, basic precautions should always be followed,
including the following:
DANGER: Risk of electric shock. Connect only to a circuit protected by a Ground-Fault
Circuit-Interrupter (GFCI)*.
Building materials and wiring should be routed away from the blower body and other heat-producing
components of the unit.
Install to permit access for servicing.
A pressure wire connector marked ″Earth/Ground″ is provided within the wiring compartment. To reduce
the risk of electric shock, connect this connector to the grounding terminal of your electric service or supply
panel with copper wire equivalent in size to the circuit conductor supplying this equipment.
A pressure wire connector is provided on the exterior of the pump or control within this unit to permit
connection of a bonding conductor between this unit and all the other exposed metal in the vicinity, as
needed to comply with local requirements.
Grounding is required. The unit should be installed by a qualified service representative, and grounded.
WARNING: Risk of injury or property damage. Please read all instructions thoroughly before
beginning installation, including the following requirements.
WARNING: Risk of electric shock. A qualified electrician should make all electrical connections.
WARNING: Risk of electric shock. Disconnect power before servicing.
NOTICE: Follow all local plumbing and electrical codes. In Canada, install this unit in accordance with
the Canadian Electrical Code, Part 1.
*Outside North America, this device may be known as a Residual Current Device (RCD).
Product Information
Electrical Requirements
The installation must have a Class A Ground-Fault Circuit-Interrupter (GFCI). The GFCI protects against
line-to-ground shock hazard. Use a 120 V, 15 A, 60 Hz dedicated service for the bath.
If the blower supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly
qualified persons in order to avoid a hazard.
Product Notices
NOTICE: Keep the area around the blower clean and free of debris. Ensure that the area around the
blower is free of sawdust, insulation, dirt, and other small loose debris. Such material can block the blower
air ducts and reduce the air flow through the blower.
NOTICE: This product contains an automatic water purge mode that turns the blower on for 2 minutes
about 30 minutes after the unit is turned off and drained.
Features
Factory-installed components include a blower motor with power supply cord, air piping, and user keypad.
-G2M models also include transducers, an amplifier, and a power supply cord. Other than electrical wiring
and plumbing, no assembly is needed.
1198326-2-D 2 Kohler Co.
Tools and Materials
Plus:
• Conventional Woodworking
Tools and Materials
• Drop Cloth
• Construction Adhesive (Optional)
• Cement* or Mortar (Optional)
• 2x4s
* Do not use gypsum cement.
100% Silicone Sealant
Kohler Co. 3 1198326-2-D
Alcove Drop-In
Position the
rough plumbing.
Construct 2x4
stud framing
according to the
Position the
rough plumbing.
product dimensions.
Construct according
to the product dimensions.
Access
Panel
Verify that the subfloor
offers adequate support,
and is flat and level.
Verify that the subfloor
offers adequate support,
and is flat and level.
1. Prepare the Site
NOTICE: Measure your actual product for site preparation. Note the model number located on the bath
blower, then visit the product page at www.kohler.com for additional information.
NOTICE: Remote blower installation kit K-1446 is available for relocating the blower.
NOTICE: Provide generous, unrestricted access to the blower. You must provide access for servicing the
blower. The access must be located immediately next to the blower.
NOTICE: Do not lift the bath by the piping or blower, or use the piping or blower for structural support
of the bath. To avoid damage to the bath, lift by the rim at the sides of the bath.
NOTICE: Do not support the weight of the bath by the rim.
NOTICE: Drop-in models are not intended for alcove installation. Use a flanged model for alcove
installations.
NOTE: Drop-in, alcove, or corner installation is possible, depending on the product chosen.
Carefully unpack and inspect the new bath for damage before installation. If there is damage do not
install the bath; contact your dealer.
Make sure the flooring offers adequate support for your bath, and verify that the subfloor is flat and
level.
NOTE: For remote blower installations, refer to the installation instructions included with the remote
blower installation kit before proceeding.
Provide adequate ventilation and at least 15 cubic feet (.4 cubic meters) of open air space for cooling
the motor and supplying sufficient air to the blower. Do not position the blower motor closer than
1″ (25 mm) to the wall or other objects.
Construct 2x4 stud framing.
Install an access panel for future blower servicing. The access panel must be at least 20″ (508 mm)
wide by 15″ (381 mm) high.
Install the rough plumbing.
Install the drain to the bath according to the drain manufacturer’s instructions.
Protect the bath surface by positioning a clean drop cloth in the basin bottom.
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Option 1
Apply construction
adhesive.
Option 2
Clear a space
for the pump
and blower.
Alcove Installations
Stud
Furring
Strip
Cement or
Mortar Bed
Drill a small hole
through the nailing-in
flange at each stud.
Support Blocks
Nail
2. Install the Bath
NOTICE: Do not lift the bath by the piping or blower, or use the piping or blower for structural support
of the bath. To avoid damage to the bath, lift by the rim at the sides of the bath.
If the subfloor is not level, shim the bath support blocks or molded supports as necessary.
Option 1: Install Using Construction Adhesive
NOTE: Some models come with support blocks; some models have molded supports.
Apply a generous amount of high-quality construction adhesive to the bottom of the support blocks
or molded supports. With help, carefully lift the bath into position.
Option 2: Using a Cement or Mortar Bed
NOTE: Do not use gypsum cement or drywall compound for this application, as they will not provide an
acceptable, durable bond.
Set the basin area in 1″ (25 mm) to 2″ (51 mm) of mortar cement.
NOTE: The blower must rest directly on the subfloor. The blower should not be in contact with mortar.
Secure the Nailing-in Flanges (Alcove Units)
Drill a small pilot hole through the nailing-in flange at each stud. Add shims as needed.
Use large-head galvanized nails to secure the nailing-in flange to the studs.
Nail furring strips to the studs.
Install the Plumbing
Insert the drain tailpiece into the trap. Secure the drain tailpiece to the trap.
Install the faucet valve.
Check the drain connections for leakage.
Kohler Co. 5 1198326-2-D
24" (610 mm) Max. Distance
Between Blower and Outlet
Bond in accordance
with applicable codes.
Install a GFCI-protected
120 V, 15 A grounded outlet.
Air Intake
3. Make the Electrical Connections
WARNING: Risk of electric shock. Make sure the power has been disconnected before performing
the following procedures.
WARNING: Risk of electric shock. Connect the blower motor to a properly grounded,
grounding-type receptacle protected by a Ground-Fault Circuit-Interrupter (GFCI) or Residual
Current Device (RCD). Do not remove the grounding pin from the plug. Do not use a grounding
adapter.
NOTICE: The blower motor is equipped with a cord and plug. A qualified electrician must install a GFCIor RCD-protected, 120 V, 15 A, grounded outlet for the blower. No other load should be on this circuit.
Install an electrical outlet behind the bath, at least 1-1/2″ (38 mm) above the subfloor, and within
reach of the 24″ (610 mm) power cord.
Plug the blower into this outlet.
4. Complete the Installation
Test Run the Bath
Fill the bath to a level at least 4″ (102 mm) above the top of the highest airjet.
Turn off the bath and let sit for five minutes. Check all bath piping connections for leaks. Check for
leakage along the front, sides, and back of the bath.
Turn on the blower and run for 5 minutes. Check for proper operation and function.
For additional information on bath operation, see the ″Operating Instructions″ section.
Finish the Installation
Install water-resistant wallboard and all finished wall, deck, and floor materials.
Apply silicone sealant to seal all areas where the bath and finished wall or deck meet.
Install the faucet trim.
Clean-up After Installation
When cleaning up after installation, do not use abrasive cleansers, as they may scratch and dull the
bath surface. Use warm water and a liquid detergent to clean the surface of the bath.
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Complete the Installation (cont.)
Remove stubborn stains or paint with turpentine or paint thinner. Do not allow cleaners containing
petroleum distillates to remain in contact with any bath surface for long periods of time. Remove
plaster by carefully scraping with a wood edge. Do not use metal scrapers, wire brushes, or other
metal tools. Use a powder-type detergent on a damp cloth to provide mild abrasive action to any
residual plaster.
Important Safety Instructions
READ AND FOLLOW ALL INSTRUCTIONS
SAVE THESE INSTRUCTIONS
INSTRUCTIONS PERTAINING TO A RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS
WARNING: When using electrical products, basic precautions should always be followed,
including the following:
DANGER: Risk of accidental injury or drowning. To reduce the risk of injury, do not permit
children to use this unit unless they are closely supervised at all times.
WARNING: Risk of personal injury. To avoid injury, exercise care when entering or exiting the
bath.
WARNING: Risk of electric shock. Do not permit electric appliances (such as a hair dryer, lamp,
telephone, radio, or television) within 5’ (1.5 m) of this bath.
WARNING: The use of alcohol, drugs, or medication can greatly increase the risk of fatal
hyperthermia. Prolonged immersion in hot water may induce hyperthermia. Hyperthermia occurs
when the internal temperature of the body reaches a level several degrees above the normal body
temperature of 98.6°F (37°C). The symptoms of hyperthermia include an increase in the internal
temperature of the body, dizziness, lethargy, drowsiness, and fainting. The effects of hyperthermia
include: (a) failure to perceive heat, (b) failure to recognize the need to exit the bath, (c)
unawareness of impending hazard, (d) fetal damage in pregnant women, (e) physical inability to
exit the bath, and (f) unconsciousness resulting in the danger of drowning.
WARNING: Risk of fetal injury. Pregnant or possibly pregnant women should consult a physician
before using the bath.
WARNING: Risk of hyperthermia or drowning. Do not use the bath immediately following
strenuous exercise.
WARNING: Risk of hyperthermia or drowning. Water temperature in excess of 100°F (38°C) may
cause injury. Test and adjust the water temperature before use.
WARNING: Risk of personal injury. Never drop or insert any object into any opening.
Use this bath only for its intended purpose as described in this guide. Do not use attachments not
recommended by Kohler Co.
The bath must be connected only to a supply circuit that is protected by a Ground-Fault Circuit-Interrupter
(GFCI)*. Such a GFCI should be provided by the installer and should be tested on a routine basis. To test the
GFCI, press the test button. The GFCI should interrupt power. Press the reset button. Power should be
restored. If the GFCI fails to operate in this manner, the GFCI is defective. If the GFCI interrupts power to
the bath without the test button being pressed, a ground current is flowing, indicating the possibility of an
electric shock. Do not use this bath. Disconnect the bath and have the problem corrected by a qualified
service representative before using.
Kohler Co. 7 1198326-2-D
Important Safety Instructions (cont.)
Flush your whirlpool system twice a month or more depending upon usage, as described in the ″Flush the
System″ section of this guide.
Repeated use of personal care products containing oils can damage plastic whirlpool components. Avoid
using bath oils.
Whirlpool hydro-massage action can cause even a small amount of bubble bath, bath soap, shampoo, or bath
oil to foam excessively. For this reason, please do not use these products during whirlpool operation.
*Outside North America, this device may be known as a Residual Current Device (RCD).
1198326-2-D 8 Kohler Co.
Purge Mode
Increases Flow
On/Off
Decreases Flow
Operating Instructions
IMPORTANT! This product contains an automatic water purge mode that turns the blower on for 2
minutes approximately 30 minutes after the unit is turned off and drained.
NOTE: The water temperature in the bath should never exceed 104°F (40°C).
Close the drain, then fill the bath at least 4” (102 mm) above the top of the highest airjet.
Use your hand to test the water temperature for comfort and safety, then carefully enter the bath.
Press the [On/Off] icon to turn the blower on at medium speed.
Press the [Up] or [Down] arrow icons to increase or decrease the air flow.
NOTE: The blower will turn off automatically following 20 minutes of operation, and can be immediately
restarted if desired.
Press the [On/Off] icon a second time to turn off the blower.
Carefully exit and drain the bath.
Press the [Purge Mode] icon to blow remaining water from the air channels. The blower will turn
on for 2 minutes and then turn off automatically.
NOTE: About 30 minutes after the blower motor stops, a 2 minute purge mode will automatically start.
NOTE: If the bath does not function properly, refer to the ″Troubleshooting″ section.
Care and Cleaning
Do not use powdered cleaners unless the cleaner is fully dissolved in water. Solid substances
could block the airjets.
Do not use full strength bleach or ammonia cleaning solutions. Chemically active cleaning
solutions can damage the bath surface.
Do not use abrasive cleansers or solvents on acrylic surfaces. Abrasive cleaners and solvents can
damage the bath surface.
Wipe out your acrylic bath with a soft cloth after each use.
Avoid detergents, disinfectants, or cleaning products in aerosol cans.
NOTE: To restore dull or scratched units: Apply white automotive polishing compound with a clean rag.
Rub scratches and dull areas vigorously. Wipe off residue. Follow with a coat of white automotive paste
wax. Do not wax areas where you walk or stand.
Kohler Co. 9 1198326-2-D
Care and Cleaning (cont.)
Cleaning Your User Keypad and Remote Control
Use a soft cloth to wipe the keypad and remote control after each use. If the surface becomes dirty,
use a non-abrasive soap and warm water to clean.
Maintaining the Airjets
If cleaning the airjets is required due to hard water deposits, use a small between-the-teeth dental
brush and white vinegar. Dip the brush in the vinegar, brush the hole, rinse the brush in clean
water, and then use the wet rinsed brush to rinse the hole.
Fill the bath with water to the top row of airjets. Drain the bath and press the purge button.
For detailed cleaning information and products to consider, visit www.kohler.com/clean. To order Care &
Cleaning information, call 1-800-456-4537.
Troubleshooting
NOTICE: This section is for general aid only. A Kohler Co. Authorized Service Representative or
qualified electrician should correct any electrical problems. For warranty service, call 1-800-4KOHLER
from within the USA and Canada, or 001-800-456-4537 from within Mexico.
For service parts information, visit your product page at www.kohler.com/serviceparts.
Symptoms Probable Causes Recommended Action
1. Blower turns on by itself
after the bath has been
drained.
2. Blower turns off by itself
after running for 2
minutes.
3. Blower motor will not
start.
4. Blower motor stops
running and will not
immediately restart.
5. Blower motor starts, some
but not all airjets are
working.
A. Normal operation. Automatic
purge mode is working as
designed.
A. The Purge Mode icon was
pressed instead of the On/Off
icon.
A. Power cord from blower motor
is loose, disconnected, or
damaged.
B. User keypad cable loose or
damaged.
C. User keypad does not work. C. Replace user keypad.
D. Blower motor does not work. D. Replace the blower motor.
A. Blower motor overheated and
protection device activated.
A. Blower motor speed is too low. A. Increase speed.
B. Blower motor inlet is blocked. B. Clean blower motor inlet.
C. Blower motor does not work. C. Replace the blower motor.
D. Blower motor discharge is
blocked.
E. Airjets are clogged. E. Use a small between-the-teeth
A. No action is required. Automatic
purge mode runs for 2 minutes 30
minutes after the bath is drained.
A. Press the On/Off icon on the
keypad. See the ″Operating
Instructions″ section.
A. Check wiring for proper
connections.
B. Check wire connections. If
necessary, replace user keypad
cable.
A. Check for blockage at blower air
intake. Remove blockage and allow
motor to cool.
D. Clear blockage.
dental brush and white vinegar.
Dip the brush in the vinegar, brush
the hole, rinse the brush in clean
water, and then use the wet rinsed
brush to rinse the hole.
1198326-2-D 10 Kohler Co.
Troubleshooting (cont.)
Symptoms Probable Causes Recommended Action
6. Blower motor runs but no
air bubbles are observed.
7. Blower motor operates,
air bubbles are observed,
but speed feature does
not work.
8. Blower motor does not
turn off when the On/Off
button is pressed.
9. Purge mode does not
work.
10. Bath does not purge
automatically.
A. Blower motor inlet is blocked. A. Clean blower motor inlet.
B. Airjets are clogged. B. Use a small between-the-teeth
C. Blower motor does not work. C. Replace the blower motor.
A. Blower motor inlet is blocked. A. Clean blower motor inlet.
B. Loose, disconnected, or
damaged wiring harness.
C. User keypad does not work. C. Replace the user keypad.
D. Blower motor does not work. D. Replace the blower motor.
A. User keypad does not work. A. Replace the user keypad.
B. Loose, disconnected, or
damaged wiring harness.
C. Control does not work. C. Replace the control.
A. User keypad does not work. A. Replace the user keypad.
B. Control does not work. B. Replace the control.
A. Blower does not work. A. Replace the blower.
dental brush and white vinegar.
Dip the brush in the vinegar, brush
the hole, rinse the brush in clean
water, and then use the wet rinsed
brush to rinse the hole.
B. Check wiring for proper
connections. Replace the wiring
harness if necessary.
B. Check wiring for proper
connections. Replace the wiring
harness if necessary.
Warranty
ONE-YEAR LIMITED WARRANTY
KOHLER plumbing products are warranted to be free of defects in material and workmanship for one year
from date of installation.
Kohler Co. will, at its election, repair, replace or make appropriate adjustment where Kohler Co. inspection
discloses any such defects occurring in normal usage within one (1) year after installation. Kohler Co. is not
responsible for removal or installation costs. Use of in-tank toilet cleaners will void the warranty.
To obtain warranty service contact Kohler Co. either through your Dealer, Plumbing Contractor, Home
Center or E-tailer, or by writing Kohler Co., Attn.: Customer Care Center, 444 Highland Drive, Kohler, WI
53044, USA, or by calling 1-800-4-KOHLER (1-800-456-4537) from within the USA and Canada, and
001-800-456-4537 from within Mexico, or visit www.kohler.com within the USA, www.ca.kohler.com from
within Canada, or www.mx.kohler.com in Mexico.
IMPLIED WARRANTIES INCLUDING THAT OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE EXPRESSLY LIMITED IN DURATION TO THE DURATION OF THIS
WARRANTY. KOHLER CO. AND/OR SELLER DISCLAIM ANY LIABILITY FOR SPECIAL,
INCIDENTAL OR CONSEQUENTIAL DAMAGES. Some states/provinces do not allow limitations on how
long an implied warranty lasts, or the exclusion or limitation of special, incidental or consequential damages,
so these limitations and exclusions may not apply to you. This warranty gives you specific legal rights. You
may also have other rights which vary from state/province to state/province.
This is Kohler Co.’s exclusive written warranty.
Kohler Co. 11 1198326-2-D
Warranty
For Mexico
KOHLER CO.
It is recommended that at the time of purchase, you verify that all accessories and components are complete
in this package.
This Kohler product is warranted to be free of defects in material and workmanship for one (1) year from the
date of purchase as shown on the invoice or receipt.
1. Kohler Co. will only service its commercialized products through its authorized distributors.
2. To obtain warranty service, please present the invoice and corresponding warranty.
3. Through its authorized distributors, Kohler Co. promises to repair the defective product or provide a new
replacement or an equivalent model (in those cases that the model has been discontinued) when the product
is beyond repair, without any charge to the consumer.
4. The time of repair will not exceed six (6) weeks commencing on the date the product is received.
5. It is recommended that the consumer save the invoice or receipt as additional protection, as it may
substitute the warranty in the case that there is a discrepancy in the validity of the warranty.
EXCEPTIONS AND RESTRICTIONS
The Warranty will not be valid in the following cases:
1. When the product is not operated in accordance with the instructions concerning use and operation set
forth in the owner’s manual or installation instructions, and when the recommendations and warnings
included are not observed.
2. When the product has been modified or dismantled partially or totally; or has been used in a negligent
fashion and as a consequence has suffered damages attributable to the consumer, individual, or hardware not
authorized by Kohler Co.
3. This warranty does not cover the damages as a result of disaster such as fire or acts of God, including
flooding, earthquake, or electric storms, etc. To obtain a list of distributors in your area where you can
exercise your rights under this warranty, please call 001-800-456-4537.
KOHLER CO., KOHLER, WI 53044 U.S.A.
IMPORTER:
COMERCIALIZADORA INTERCERAMIC, S.A. DE C.V.
AV. CARLOS PACHECO NO. 7200, COL. MADERA 65
CHIHUAHUA, CHIH., MEXICO C.P. 31060
R.F.C. CIN141022IE9
TEL: 52 (614) 429-11-11
IMPORTER:
GAMA MATERIALES Y ACEROS, S.A. DE C.V.
AVE LOS ANGELES NO. 1800
COL VALLE DEL NOGALAR, SAN NICOLAS DE LOS GARZA
N.L. MEXICO
R.F.C. GMA901220U11
TEL: 81-1160-5500
1198326-2-D 12 Kohler Co.
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