Kohler K-1151 User manual

Installation Guide
Bath with Airjets with Integral Apron
Mproduct numbers are for Mexico (i.e. K-12345M)
Los números de productos seguidos de Mcorresponden a México
(Ej. K-12345M)
Français, page“ Français-1”
Español, página“ Español-1”
K-1151 K-1257 K-1357
K-1244
1040292-2-C

Important Information
DANGER: Risk of electric shock. Connect only to a circuit protected by a Ground-Fault
Circuit-Interrupter (GFCI).
WARNING: When using electrical products, basic precautions should always be followed, including
the following:
WARNING: Risk of electric shock. A licensed electrician should make all electrical connections.
WARNING: Risk of electric shock. Disconnect power before servicing.
WARNING: Risk of injury or property damage. Please read all instructions thoroughly before
beginning installation, including the following requirements.
NOTICE: Follow all local plumbing and electrical codes.
Grounding is required. The unit should be installed by a qualified service representative, and grounded.
Building materials and wiring should be routed away from the blower motor body and other heat-producing
components of the unit.
Install to permit access for servicing.
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 with airjets.
NOTE: If the pump 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
WARNING: Unauthorized modification may cause unsafe operation or affect performance of the
bath with airjets. Do not relocate the blower motor, or make other modifications to the system in the
absence of kit instructions, as this could adversely affect the performance and safe operation of the
bath with airjets. Kohler Co. shall not be liable under its warranty or otherwise for personal injury or
damage caused by any such unauthorized modification.
WARNING: Keep the area around the blower motor clean and free of debris. Ensure that the area
around the blower motor is free of sawdust, insulation, dirt, or other small loose debris. Such material
could clog the blower motor air ducts and reduce the air flow through the blower.
Factory-Assembled Features
Factory installed components include blower motor with power supply cord, check valve, air piping, user
keypad, and keypad cable. Other than power wiring and plumbing, no assembly is needed.
Connections and Service Access
NOTICE: Provide unrestricted service access to the blower motor. You must provide access for servicing
the blower motor and check valve. The access must be located immediately next to the blower motor.
Study the roughing-in information packed with the bath.
Before installation, ensure that there is proper access to the blower motor and final connections. If the blower
motor is installed in an enclosed area, an access panel is required at the blower motor. This panel should be
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Product Information (cont.)
18″(45.7 cm) wide and 14″(35.6 cm) high minimum.
Table of Contents
Important Information .............................................................. 2
Product Information ............................................................... 2
Electrical Requirements .......................................................... 2
Product Notices ................................................................ 2
Factory-Assembled Features ...................................................... 2
Connections and Service Access ................................................... 2
Thank You For Choosing Kohler Company .............................................. 4
Tools and Materials ............................................................... 4
Before You Begin ................................................................. 4
Prepare the Site ................................................................. 5
Prepare the Site - Concrete Construction ............................................... 6
Prepare the Bath with Airjets ........................................................ 6
Secure the Unit .................................................................. 7
Option Using a Cement or Mortar Bed ............................................... 7
Option Using Construction Adhesive ................................................. 7
Secure the Whirlpool .............................................................. 8
Install the Plumbing ............................................................... 8
Make Electrical Connections ......................................................... 9
Test Run the Bath with Airjets ....................................................... 10
Complete the Finished Wall ........................................................ 11
Removing the Apron Panel ......................................................... 11
Clean-Up After Installation ......................................................... 11
Confirm Proper Operation .......................................................... 12
Fill the Bath .................................................................. 12
Troubleshooting Procedure ......................................................... 14
Troubleshooting Guide .......................................................... 14
Kohler Co. 3 1040292-2-C

Thank You For Choosing Kohler Company
We appreciate your commitment to Kohler quality. Please take a few minutes to review this manual before
you start your installation. If you encounter any installation or performance problems, please don’t hesitate
to contact us. Our phone numbers and website are listed on the back cover. Thanks again for choosing
Kohler Company.
Tools and Materials
Before You Begin
CAUTION: Risk of product damage. Do not lift the bath with airjets by the piping or blower motor, or
use the piping or blower motor for structural support of the bath.
CAUTION: Risk of product damage. Do not lift the bath with airjets by the integral apron.
We recommend this bath with airjets for alcove installation.
Please read these instructions carefully to familiarize yourself with the required tools, material, and
installation sequences. Follow the sections that pertain to your particular installation. This will help
you avoid costly mistakes. In addition to installation instructions, read all operating and safety
instructions.
Inspect the bath with airjets for damage before you begin installation.
You must install this bath to an adequately supported, level subfloor.
Confirm adequate mounting and connection space for the faucet specified for your installation.
An optional accessories kit is available for relocating the blower motor. Refer to the back cover for
contact information if this kit is desired but was not ordered. If relocating the blower motor, follow
the instructions that came with the kit while performing this installation.
Pencil
Safety Glasses Level
Silicone Sealant Measuring Tape
Pipe Wrench
Plus:
• Conventional woodworking tools
and materials
• Drop Cloth
• Construction adhesive (optional)
• Cement or mortar (optional)
• #6 Large-head Galvanized Nails
• 2x4's or 2x6's
Claw
Hammer
Blade
Screwdriver
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1. Prepare the Site
CAUTION: Risk of product damage. Do not support the bath by the rim.
NOTICE: Unless otherwise specified, floor support under the bath must provide for a minimum of 80
lbs./square foot (390 kg./square meter) loading.
NOTICE: Provide adequate ventilation and a minimum of 15 cubic feet (.4 cubic meters) in the installed
location for cooling the motor and to supply sufficient air for the blower. Do not install the blower motor
closer than 1″(2.5 cm) from the wall or other objects.
Make sure the floor offers adequate support for your bath, and verify that the subfloor is flat and
level.
Construct 2x4 or 2x6 stud framing designed for your particular installation.
Install an access panel to allow the blower motor to be serviced.
Position the plumbing according to the roughing-in information packed. Cap the supplies, and
check for leaks.
Showerhead
Blocking
Supply
Valves
Spout
Header
Over
Opening
Remove
Bottom
Plate
Kohler Co. 5 1040292-2-C

2. Prepare the Site - Concrete Construction
CAUTION: Risk of product damage. Do not support the bath by the rim.
NOTICE: Unless otherwise specified, floor support under the bath must provide for a minimum of 80
lbs./square foot (390 kg./square meter) loading.
NOTICE: Provide adequate ventilation and a minimum of 15 cubic feet (.4 cubic meters) in the installed
location for cooling the motor and to supply sufficient air for the blower. Do not install the blower motor
closer than 1″(2.5 cm) from the wall or other objects.
Make sure the flooring offers adequate support for your bath, and verify that the subfloor is flat and
level.
Construct brick or concrete supports.
Provide a 1/16″(2 mm) gap between the bath rim and the concrete or brick framing. Frame the
floor, or construct a frame for a raised installation, in accordance with the roughing-in information
packed with the bath.
Position the plumbing according to the roughing-in information packed. Cap the supplies, and
check for leaks.
3. Prepare the Bath with Airjets
Install the drain to the bath according to the drain manufacturer’s instructions. Do not connect the
trap at this time.
Position a clean drop cloth or similar material in the bottom of the bath to protect the finish. Be
careful not to scratch the surface of the bath.
Brick
Bath
1/16"
(2 mm)
Tile
Approved Tile Backing
Tile
Approved Tile Backing
Apron Side
Brick
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4. Secure the Unit
CAUTION: Risk of product damage. Do not lift the bath with airjets by the air channels or blower
motor, or use the air channels or blower motor for structural support of the bath.
CAUTION: Risk of product damage. Do not support the bath by the rim.
Choose the installation option that best applies to your particular installation. Follow the
appropriate instructions.
If the subfloor is not level, shim the bath support blocks as necessary.
Option 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.
Spread a 2″(5 cm) thick layer of cement or mortar on the subfloor where the bath will be set. This
will help secure, level, and support the unit. Clear all the material away from the support block
locations.
Position a piece of plastic drop cloth material on top of the cement or mortar bed.
With help, carefully lift the bath into place, and make sure the support blocks do not rest in the bed
material.
Insert the drain tailpiece into the trap. Make sure the bath is level and resting on all support blocks.
Remove the protective tape from the rim. Apply a continuous bead of high-quality silicone sealant
around the entire rim of the bath.
Allow the sealant to cure according to the manufacturer’s instructions.
Option Using Construction Adhesive
Apply a generous amount of high-quality construction adhesive to the bottom of the support blocks.
With help, carefully lift the bath into position.
Insert the drain tailpiece into the trap. Make sure the bath is level and resting on all support blocks.
Remove the protective tape from the rim. Apply a continuous bead of high-quality silicone sealant
around the entire rim of the bath.
Allow the sealant to cure according to the manufacturer’s instructions.
Clear spaces
for support
blocks.
Apply construction
adhesive to the
support blocks.
Spread a 2" (5.1 cm)
layer of cement or
mortar bed material.
Kohler Co. 7 1040292-2-C

5. Secure the Whirlpool
Wood Construction
Drill a small pilot hole through the nailing-in flange at each stud. Add shims between the nailing-in
flange and the studs as needed to eliminate gaps.
Nail 1/4” (6 mm) thick furring strips to the studs to shim out to the edge of the nailing-in flange.
Use #6 large-head galvanized nails to secure the nailing-in flange to the studs.
Concrete Construction
NOTE: We recommend that the flange be secured to the wall for support.
Drill pilot holes through the nailing-in flange so they are about 16” (40.6 cm) apart.
Install concrete wall anchors to the wall at the pilot hole locations.
Secure the nailing-in flange to the wall anchors with screws.
6. Install the Plumbing
CAUTION: Risk of property damage. Ensure a watertight seal on the bath drain.
Connect the drain to the trap according to the drain manufacturer’s instructions.
NOTICE: An access panel will simplify future maintenance.
Install the faucet valving according to the faucet manufacturer’s instructions. Do not install the
faucet trim until instructed. Open the hot and cold water supplies, and check the supply
connections for leakage.
Run water into the bath, and check the drain connections for leakage.
Stud
Nail 1/4" (6 mm)
thick furring strips
to the studs. Drill a small hole
through the nailing-in
flange at each stud.
Use #6 large-head
galvanized nails to secure
the nailing-in flange to the
studs.
1040292-2-C 8 Kohler Co.

7. Make Electrical Connections
WARNING: Risk of electric shock. To reduce the risk of electrical shock, connect the blower motor to
a properly grounded, grounding-type receptacle protected by Ground-Fault Circuit-Interrupters
(GFCI’s). Do not remove the plug grounding pins. Do not use grounding adapters.
NOTE: The bath with airjets model number is printed on a label near the blower motor. This label also
identifies the electrical rating.
Your Kohler bath with airjets is equipped with a cord and plug. The blower motor has been wired
at the factory. A licensed electrician must install a dedicated GFCI-protected, 120 V, 15 A, grounded
outlet. Locate the outlet behind the bath, and within 24″(61 cm) of the blower motor.
Plug the blower motor into this outlet.
Clean the area of all dust and debris.
Blower Motor
GFCI-Protected
Receptacle
Kohler Co. 9 1040292-2-C

8. Test Run the Bath with Airjets
For information on unit operation, refer to the ″Confirm Proper Operation″section.
Check all electrical connections, and make sure the electrical power to the bath with airjets is on.
Make sure all piping connections in the air harness are secure.
Verify that the blower motor is secure.
Temporarily remove the plastic drop cloth or other protective sheeting from the bath.
Fill the bath to a level at least 2″(5 cm) above the top of the highest airjet.
Check the drain piping for leaks. Repair any leaks.
Operate the bath and check for air flow through the airjets. Check the air piping for air leaks.
Stop the bath and drain the water.
Return the plastic drop cloth or other protective sheeting to the bath.
Purge Mode
On/Off
Increases Flow
Decreases Flow
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