Kohler K-3399 User manual

Installation Guide
One-Piece Toilet
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-3399
1021800-2-B

Tools and Materials
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 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.
Before You Begin
CAUTION: Risk of personal injury or product damage. Handle
with care. Vitreous china can break or chip if the product is
handled carelessly.
DANGER: Risk of electrical shock. Connect to a properly
grounded, grounding-type receptacle, protected by a
Ground-Fault Circuit-Interrupter (GFCI).
A dedicated 120 VAC, 15 A, 60 Hz circuit (protected by a Class A
GFCI) is required for installation.
NOTICE: The Canadian Electric Code requires receptacles installed
in bathrooms to be located at least 1 meter from a bathtub or
shower if practical, but in no case less than 500 mm. If the
installation is in Canada, install this unit in accordance with the
Canadian Electrical Code, Part 1.
Observe all local plumbing and building codes.
CAUTION: Risk of product or property damage. Do not use
rigid conduit to install this toilet. Rigid conduit may put
excessive stress on the toilet, which can cause damage to the
toilet tank or the installation site.
10" Adjustable
Wrench Supply
Shut-Off
Valve
Tape
Measure
Tubing Cutter Safety
Glasses
Plus:
• 5/16" T-Bolts w/ Nuts and Washers
• Putty Knife
• Screwdriver
• Electrical Tools and Supplies
• Hacksaw
• Level
• Sponge
• Pipe Wrench
• Metal File
• Liquid-Tight Conduit
Wax Seal
1021800-2-B 2 Kohler Co.

Before You Begin (cont.)
NOTICE: If local codes will not permit you to use a liquid-tight,
flexible conduit, do not attempt to install this toilet.
Carefully inspect the new toilet for damage.
If the existing toilet does not have a supply shut-off valve below
the tank, install one before installing the new toilet.
Kohler Co. 3 1021800-2-B

1. Remove the Existing Toilet
Turn off the water supply.
Flush the toilet, then sponge out all remaining water from the
tank.
Disconnect the supply shut-off valve (if present), and remove the
old tank and bowl.
Remove the old wax seal from the floor with a putty knife.
Replace the old T-bolts with the new 5/16″diameter T-bolts.
CAUTION: Risk of hazardous gases. If the new toilet is not
installed immediately, temporarily stuff a rag in the closet flange.
T-Bolt
Scrape off the old
wax seal
Closet
Flange
1021800-2-B 4 Kohler Co.

2. Install Electrical Service
DANGER: Risk of electrical shock. Connect only to a
properly-grounded, dedicated 120 VAC, 15 A, 60 Hz circuit
protected by a Class A Ground-Fault Circuit-Interrupter (GFCI)
A licensed electrician must install a properly-grounded, dedicated
120 VAC, 15 A, 60 Hz circuit. The circuit must be protected by a
Class A ground-fault circuit-interrupter (GFCI).
Locate the wall box for the flexible conduit to be used for this
circuit 6” (15.2cm) above the floor and 6” (15.2cm) to the right of
the toilet centerline.
6" (15.2cm)
Center Line
6" (15.2cm)
120 VAC, 15 A,
60 Hz Circuit
Kohler Co. 5 1021800-2-B

3. Install the Liquid-Tight Conduit
NOTICE: If local codes will not permit you to use a liquid-tight,
flexible conduit, do not attempt to install this toilet.
CAUTION: Risk of product or property damage. Do not use
rigid conduit to install this toilet. Rigid conduit may put
excessive stress on the toilet, which can cause damage to the
toilet tank or the installation site.
Cut a 36” (91.4cm) length of liquid-tight conduit. Use an
appropriate liquid-tight connector to connect the conduit to the
underside of the junction box located on the inside rear wall of
the toilet tank.
Liquid Tight Connector Junction Box
Liquid Tight Conduit
(36" (91.4cm))
1021800-2-B 6 Kohler Co.

4. Install the New Toilet
Install or relocate the supply and outlet as necessary to conform
to the roughing-in dimensions.
Install a supply shut-off valve.
Record the model number in the Homeowners Guide.
Lay the toilet down onto a padded surface.
From the bottom of the toilet, firmly press a new wax seal around
the toilet outlet.
Remove the temporary rag (if used) from the toilet flange hole.
Align and lower the toilet over the flange and T-bolts.
CAUTION: Risk of external leakage. Do not lift or rock the
bowl after placement. If you break the watertight seal, you must
install a new wax seal.
Apply your full body weight around the toilet to set the seal.
Place the plastic bolt cap bases over the T-bolts in the ″up″
position as marked.
Place the metal washers and nuts on the plastic bolt cap bases
and T-bolts.
CAUTION: Risk of product damage. Overtightening may cause
breakage or chipping of vitreous china.
Carefully tighten the nuts.
Bottom of Bowl
Wax Seal Bolt Cap
Nut
Washer
Bolt Cap Base
T-Bolt
T-Bolt
Closet Flange
Kohler Co. 7 1021800-2-B

Install the New Toilet (cont.)
NOTE: To achieve optimum performance, be sure the bowl is level.
CAUTION: Risk of product damage. Protect the vitreous china
from exposure to the saw blade when cutting off excess T-bolt
length.
If the T-bolts extend more than 1/4″(6mm) over the top of the
nuts, cut off the excess.
Attach the bolt caps.
1021800-2-B 8 Kohler Co.

5. Make the Final Electrical Connections
NOTICE: An electrician should make the final electrical connections
using wire nuts or other terminations as required by applicable local
codes. Connect the black wire to the line, the white wire to neutral,
and the green wire to ground.
Cut the liquid-tight, flexible conduit to a length suitable to make
a connection to the wall box.
Assemble the connectors on the conduit.
Pull the wall box wires through the conduit to the junction box
mounted on the rear inside wall of the toilet tank.
Connect the conduit at both ends.
Using the appropriate terminations, make the electrical
connections in the junction box on the toilet tank.
Install the junction box cover using the self-tapping screws
provided.
Liquid Tight Conduit
Junction Box Cover
Junction Box
Screw
Pull Wall Box Wires Through
Liquid Tight Conduit
Kohler Co. 9 1021800-2-B

6. Complete the Installation
Remove the Packing Material
NOTE: Do not remove the pump hose clamps.
Remove and discard the protective materials used in shipping.
Cut the wire tie holding the pump to the back wall of the toilet.
Discard the wire tie.
If the pump has shifted during shipping or installation, reposition
it so it is not touching the back or side wall of the toilet.
Complete Connections
Connect the supply shut-off valve to the toilet supply shank.
Open the supply shut-off valve slowly to check for leaks. If the
connections have been properly assembled, a slight tightening of
the nuts should stop any leakage.
Install the toilet seat according to the packed instructions.
Plug the toilet electrical cord into a Class A Ground-Fault
Circuit-Interrupter (GFCI).
Adjust the tank water level to the proper marked waterline by
rotating the threaded rod clockwise to raise the water level or
counterclockwise to lower the water level.
Carefully set the cover onto the tank.
Supply Shut-Off Valve
Connection
Tubing
Ferrule
Supply Shank
Seal Washer
Tubing
Ferrule
Fill Valve Nut
Coupling
Nut
Supply
Shut-Off
Valve
Comp. Nut
Coupling
Nut
Comp.
Washer
Comp.
Nut
Adjusting The Water Level
Float
Waterline
1021800-2-B 10 Kohler Co.