Kohler K-3900 Installation Guide

JOBNAME: No Job Name PAGE: 1 SESS: 17 OUTPUT: Wed Jun 23 13:46:00 2010

This is the latest version of the Installation Guide.
The through-the-floor information is accurate and complete, however,

we understand it unnecessary for the Chinese market.
Please modify as necessary to the meet your market.
We can supply you with the original art files if changes are needed.

Installation Guide

Toilet

K-3900

M product numbers are for Mexico (i.e. K-12345M)
Los números de productos seguidos de M corresponden a México
(Ej. K-12345M)
Français, page “Français-1”
Español, página “Español-1”

1132336-2-A

JOBNAME: No Job Name PAGE: 2 SESS: 17 OUTPUT: Wed Jun 23 13:46:00 2010

Confirm electrical needs, change as
required.

Important Information

NOTE: This product is designed for installation with the electrical and water supplies located through
either the wall or the floor.

Grounding Instructions

•

This product should be grounded. In the event of an electrical short circuit, grounding reduces the
risk of electric shock by providing an escape wire for the electric current. This product is equipped
with a cord having a grounding wire with a grounding plug. The plug must be plugged into an
outlet that is properly installed and grounded.

DANGER: Risk of electric shock. Improper use of the grounding plug can result in a risk of
electric shock.

•

If repair or replacement of the cord or plug is necessary, do not connect the grounding wire to either
flat blade terminal. The wire with insulation having an outer surface that is green with or without
yellow stripes is the grounding wire.

•

Check with a qualified electrician or service personnel if the grounding instructions are not
completely understood, or if in doubt as to whether the product is properly grounded.

•

This product is factory equipped with a specific electric cord and plug to permit connection to a
proper electric circuit. Make sure that the product is connected to an outlet having the same
configuration as the plug. No adapter should be used with this product. Do not modify the plug
provided — if it will not fit the outlet, have the proper outlet installed by a qualified electrician. If
the product must be reconnected for use on a different type of electric circuit, the reconnection
should be made by qualified service personnel.

Tools and Materials

Drill with assorted Bits Screwdrivers

Adjustable Wrench

Wax Ring

Before You Begin

DANGER: Risk of electric shock. Disconnect power before servicing.

DANGER: Risk of electric shock. For plug-in installations/wall-mounted electrical supply:

Connect only to a properly-grounded, grounding-type receptacle which is protected by a 120 V, 15
A, 60 Hz Ground-Fault Circuit-Interrupter (GFCI) or Residual Current Device (RCD). Do not
remove the grounding pin or use a grounding adapter.

Plus:

• Rug or Protective Material

• Tape

CAUTION: Risk of personal injury. This toilet weighs approximately 100 lbs (45 kg). Lift the toilet
with two people, employing proper lifting technique.

1132336-2-A 2 Kohler Co.

JOBNAME: No Job Name PAGE: 3 SESS: 17 OUTPUT: Wed Jun 23 13:46:00 2010

Before You Begin (cont.)

CAUTION: Risk of hazardous gases. If a new toilet is not installed immediately, temporarily place
a rag in the floor flange opening.

NOTICE: Follow all local plumbing and electrical codes.

IMPORTANT! For ease of installation, install the docking station power cord before the sub wall and

finished wall are installed.

Observe all local plumbing and building codes.

Carefully inspect the new toilet for damage.

Consult the online users guide at kohler.com for more information.

Kohler Co. reserves the right to make revisions in the design of products without notice, as specified
in the Price Book.

Kohler Co. 3 1132336-2-A

JOBNAME: No Job Name PAGE: 4 SESS: 17 OUTPUT: Wed Jun 23 13:46:00 2010

Confirm location of electrical and
water supplies, adjust as
needed.

1-3/4"
(4.4 cm)

36-1/4"
(92.1 cm)

29-1/2" (74.9 cm)

3-3/4" (9.5 cm)

14-1/2"
(36.8 cm)

25-3/4" (65.4 cm)

38" (96.5 cm) - 66" (167.6 cm)

5-15/16"
(15.1 cm)

4-1/16"
(10.4 cm)

15-5/8"
(39.7 cm)

Remote Dock

41" (104.1 cm) ­66" (167.6 cm)

2-1/4"
(5.7 cm)

13-5/8"
(34.6 cm)

1/2" NPS
Supply

6"
(15.2 cm)

Front of Bowl

10-13/16" (27.5 cm)

4-3/4" (12.1 cm)

2-5/8"
(6.7 cm) D.

12"
(30.5 cm)

25-1/4"
(64.1 cm)

Finished Wall

Power Cord
Reaches
56" (142.2 cm)

17-7/8"
(45.4 cm)

Outlet

12" (30.5 cm)

C

L Of Outlet

8" (20.3 cm)

2" (5.1 cm)

Rough-in - Wall Mount Electrical and Water Supply

DANGER: Risk of electric shock. Disconnect power before servicing.

NOTICE: The locations for the supply shut-off, electrical outlet, and docking station cord are suggested

locations. Make sure all installations adhere to applicable codes and standards.

IMPORTANT! If the supply shut-off is installed directly behind the toilet, the back panel cannot be
removed for servicing. Removing the back panel would then require the entire toilet be removed.

IMPORTANT! Do not install any items behind the toilet that will interfere with the seat when it is raised.
All decorative items should be at least 37″ high to allow clearance for the seat.

The remote docking station is equipped with a 15’ (4.5 M) power cord. The station mounting
location shown for the docking station is ADA compliant.

The supplied power cord is 56″ (142.2 cm) in length. The cord should be installed before the
finished wall are installed if possible.

The toilet is equipped with a motion sensor to automatically open the seat when movement is
sensed. This sensor has a maximum range of 51-1/2″ (130 cm). Sensitivity can be adjusted using the
User Interface.

The toilet is equipped with a motion sensor seat actuator, located on the right side of the toilet. This
sensor has a maximum range of 8″ (20.3 cm). Keep this area free of obstructions.

Supply stop inlet should be 1/2″ NPT. Supply stop outlet needs to be 1/2″ NPSM.

1132336-2-A 4 Kohler Co.

JOBNAME: No Job Name PAGE: 5 SESS: 17 OUTPUT: Wed Jun 23 13:46:00 2010

1-1/4" (3.2 cm) D.
Power Supply Hole

1-1/2" (3.8 cm) D.
Water Supply Hole

1-3/4"
(4.4 cm)

36-1/4"
(92.1 cm)

29-1/2" (74.9 cm)

3-3/4" (9.5 cm)

14-1/2"
(36.8 cm)

25-3/4" (65.4 cm)

38" (96.5 cm) - 66" (167.6 cm)

5-15/16"
(15.1 cm)

4-1/16"
(10.4 cm)

15-5/8"
(39.7 cm)

12"
(30.5 cm)

C

L Of Outlet

Remote Dock

41" (104.1 cm) ­66" (167.6 cm)

2-1/4"
(5.7 cm)

13-5/8"
(34.6 cm)

Front of Bowl

10-13/16" (27.5 cm)

4-3/4" (12.1 cm)

2-5/8"
(6.7 cm) D.

25-1/4"
(64.1 cm)

12"
(30.5 cm)

Finished Wall

17-7/8"
(45.4 cm)

Roughing-in - Through-The-Floor Water and Electrical

NOTICE: The locations for the supply shut-off, electrical outlet, and docking station cord are suggested
locations. Make sure all installations adhere to applicable codes and standards.

IMPORTANT! If the supply shut-off is installed directly behind the toilet, the back panel cannot be
removed for servicing. Removing the back panel would then require the entire toilet be removed.

IMPORTANT! Do not install any items behind the toilet that will interfere with the seat when it is raised.
All decorative items should be at least 37″ high to allow clearance for the seat.

The remote docking station is equipped with a 15’ (4.5 M) power cord. The station mounting
location shown for the docking station is ADA compliant.

The supplied power cord is 56″ (142.2 cm) in length. The cord should be installed before the
finished wall are installed if possible.

The toilet is equipped with a motion sensor to automatically open the seat when movement is
sensed. This sensor has a maximum range of 51-1/2″ (130 cm). Sensitivity can be adjusted using the
User Interface.

The toilet is equipped with a motion sensor seat actuator, located on the right side of the toilet. This
sensor has a maximum range of 8″ (20.3 cm). Keep this area free of obstructions.

Supply stop inlet should be 1/2″ NPT. Supply stop outlet needs to be 1/2″ NPSM.

Kohler Co. 5 1132336-2-A

JOBNAME: No Job Name PAGE: 6 SESS: 17 OUTPUT: Wed Jun 23 13:46:00 2010

Confirm wall mounted water supply and
electrical locations.

Adjust as needed for the Chinese
market.

Required for through the floor
installations only, remove these for
Chinese market.

GFCI-
Protected

2" (5.1 cm)

Receptacle

8" (20.3 cm)

6" (15.2 cm)

Dock
Power
Cord

Supply Stop

3" (7.6 cm)

Prepare the Site

DANGER: Risk of electric shock. Disconnect power before installation or servicing.

2-5/8"
(6.7 cm)

1-1/2" (3.8 cm) D.
Water Supply Hole

4" (10.2 cm)

12" (30.5 cm)

1-1/4" (3.2 cm) D.
Power Supply Hole

1-1/4"
(3.2 cm)

1-5/8"
(4.1 cm)

Floor Flange

DANGER: Risk of electric shock. Connect only to a properly-grounded, grounding-type receptacle
which is protected by a 120 V, 15 A, 60 Hz Ground-Fault Circuit-Interrupter (GFCI) or Residual
Current Device (RCD). Do not remove the grounding pin or use a grounding adapter.

DANGER: Risk of electrical shock. For hardwire installations/through-floor electrical supply:

Connect only to a properly-grounded, dedicated circuit protected by an Earth-Leakage
Circuit-Breaker (ELCB) or Residual Current Device (RCD).

NOTE: The electrical outlet and water supply may also be located behind the toilet. If it is located behind
the toilet, the water supply stop must extend no more than 3″ (7.6 cm) beyond the finished wall. If located
behind the back wall, the supply stop must be a model that connects at a 90° angle. The handle should be
easily accessible.

NOTE: Locating the supply stop behind the toilet will make it difficult to remove the back panel. It may
be necessary to remove the toilet to service items behind the back panel.

Install the Dock Power Cord

If the finished wall has not been installed, route the docking station power cord. Drill a 3/8″ (1 cm)
hole in the wall behind the toilet location for the dock cable.

If the finished wall is installed, drill a 3/8″ (1 cm) hole in the wall behind the toilet location for the
docking station power cord. Route the cord to the docking station location.

Install the Water Supply

1132336-2-A 6 Kohler Co.