Kohler K-3607 Assembly instructions

Homeowners Guide
Toilet and Bidet Seat
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-3607
1092035-5-A

Thank You For Choosing Kohler Company
Thank you for choosing Kohler Company. Your Kohler Company
product reflects the true passion for design, craftsmanship, artistry, and
innovation Kohler Company stands for. We are confident its
dependability and beauty will surpass your highest expectations,
satisfying you for years to come.
All information in this guide is based upon the latest product
information available at the time of publication. At Kohler Company,
we strive to fulfill our mission of improving the level of gracious living
for each person who is touched by our products and services. We
reserve the right to make changes in product characteristics, packaging,
or availability at any time without notice.
Please take a few minutes to review this guide. Pay special attention to
the care and cleaning instructions.
1092035-5-A 2 Kohler Co.

Theory of Operation
Operating Features
Your Kohler toilet is a one-piece toilet that flushes completely and
efficiently using only a small quantity of water. The operating system
uses an electric, motorized pump to create a thorough flush. The long
trip button selects a trip time that is adequate for heavy loads. An even
shorter flush, and less quantity of water is used when the short trip
button is used for light loads.
The operating system consists of the following basic component
groups:
The vitreous china bowl and tank, which directs the flushing
water flow and houses the system.
The pump, which houses the motor, electronic controls, and
impeller.
The fill valve, which refills the tank to the correct water line and
sends water to the bowl to establish proper trap seal depth after
each flush.
The trip button which initiates the flush and refill process. The
selected button determines how much water is flushed through
the bowl.
Long Flush
Water Flow
Float
Water Line
Fill Valve
Water Flow
Rim Supply
Hose
Bowl Supply
Hose
Pump Flush
Assembly
Fill Valve
Assembly
Short Flush
Trip
Button
Refill Tube Water Flow
Trip Button
Kohler Co. 3 1092035-5-A

Theory of Operation (cont.)
Flush Cycle
The flush cycle consists of the following steps:
When either trip button is pressed, an electronic signal is sent to
the circuit board (which is safely housed within the pump).
This triggers a timing sequence that turns on the pump motor for
a specific length of time. The length of time depends upon which
trip button was pressed. The pump runs longer for a long flush.
The pump sends pressurized water to the front jet and rim
through the connecting hoses.
This initiates the siphon action in the bowl, and thoroughly
flushes the side walls.
As the water in the tank lowers during the pumping action, the
fill valve float drops.
This turns on the fill valve to refill the tank.
While the tank is filling, water is also sent through the refill tube
to return the bowl to the proper trap seal level.
After the pump turns off, the fill valve continues sending water to
both the tank and bowl (through the refill tube).
The fill valve turns off when water reaches the proper water line
in the tank.
Safety Features
Your Kohler toilet combines outstanding function, comfort, and
performance with remarkable style and class. It contains the following
specific safety features:
Your toilet exceeds ASME performance standards for
low-consumption toilets.
It was designed with a large glazed trapway to keep waste
moving without blockage.
Your Kohler toilet is scratch and abrasion-resistant. It is crafted
from a clay mixture that is fired at an intense heat to vitrify the
clay and fuse the glaze. Its surface won’t stain, discolor, rust, or
fade. Every component in your Kohler toilet is specifically
designed to increase the toilet’s useful life.
1092035-5-A 4 Kohler Co.

Safety Features (cont.)
The pump and toilets are listed by Underwriter’s Laboratory (UL)
for safety. The fill valve is approved by International Association
of Plumbing and Mechanical Officials (IAPMO) for use in this
system.
The pump motor and circuit board are sealed in a housing
separate from the impeller (which propels the water). The motor
turns the impeller by a magnetic coupling. This ensures a
separation between the impeller and the motor with electronic
controls. There are no gaskets or O-rings that can wear out and
allow water to leak into the motor compartment.
Your new toilet is designed to be flushed once every 70 seconds.
This feature assures adequate time for the tank to fill with water
and provides consistent operation of the motor. However, a
second flush can be made 35 seconds after the first flush. If you
activate the second flush at this interval, you must wait 105
seconds to activate a third flush. If you attempt a third flush
before the 105 seconds have elapsed, the toilet will not flush. This
is normal operation.
An overflow slot between the tank and bowl allows water to
drain into the bowl and out the trapway if the water level in the
tank becomes too high.
Care and Cleaning
WARNING: Risk of property or product damage. Do not use
in-tank cleaners in your toilet. Products containing chlorine
(calcium hypochlorite) can seriously damage fittings in the
tank. This damage can cause leakage and property damage.
Kohler Co. shall not be responsible or liable for any tank fitting
damage caused by the use of cleaners containing chlorine (calcium
hypochlorite).
For best results, keep the following in mind when caring for your
KOHLER product:
•Use a mild detergent such as liquid dishwashing soap and warm
water for cleaning. Do not use abrasive cleaners that may scratch
or dull the surface.
•Carefully read the cleaner product label to ensure the cleaner is
safe for use on the material.
•Always test your cleaning solution on an inconspicuous area
before applying to the entire surface.
Kohler Co. 5 1092035-5-A

Care and Cleaning (cont.)
•Do not allow cleaners to sit or soak on the surface.
•Wipe surfaces clean and rinse completely with water immediately
after cleaner application. Rinse and dry any overspray that lands
on nearby surfaces.
•Use a soft, dampened sponge or cloth. Never use an abrasive
material such as a brush or scouring pad to clean surfaces.
•For Artist Edition Toilets: Gold and Platinum used on decorative
products are like fine jewelry. Use only warm water to clean, and
dry with a soft cloth.
For detailed cleaning information and products to consider, visit
www.kohler.com/clean. To order Care & Cleaning information, call
1-800-456-4537.
1092035-5-A 6 Kohler Co.

Unplugging the Fill Valve
Shut off the water supply.
Unplug the electrical plug for the toilet from the outlet.
Remove the tank cover.
Remove the fill valve arm assembly by rotating it 1/8 turn
counterclockwise.
NOTE: Hold the cup firmly as the water pressure may be high.
Cover the uncapped fill valve body opening with an inverted cup
in order to prevent water spray.
Turn the water supply on and off a few times in order to flush
out any blockage.
Shut off the water supply.
Use a damp cloth or sponge to remove any residue on the seal
diaphragm.
Replace the fill valve arm assembly and engage the lugs.
Rotate 1/8 turn clockwise.
Replace the tank cover.
Turn the water on.
Plug the electrical cord for the toilet into the outlet.
Test the toilet for proper operation.
SealDiaphragm
Fill Valve Body
Float
Lug
Float
Elevation
Screw
Fill Valve Arm
Assembly
Cover here to
prevent overspray.
Kohler Co. 7 1092035-5-A

Removing Fill Valve Components
Remove the Fill Valve Assembly Leaving Fill Valve Riser in Place
Perform the following steps in order to remove only the fill valve
assembly:
Shut off the water supply.
Unplug the electrical plug for the toilet from the outlet.
Remove the tank cover.
Remove the refill tube from the fill valve assembly.
Grasp the blue coupling at the riser and turn it counterclockwise
1/8 turn.
Gently pull the fill valve assembly clear of the coupling.
Remove the Fill Valve Assembly Including the Fill Valve Riser
Perform the following steps to remove the fill valve including the riser:
Shut off the water supply.
Unplug the electrical plug for the toilet from the outlet.
Remove the tank cover.
Remove the refill tube from the fill valve assembly.
Remove the supply tubing, supply nut, washer, and locknut from
below the tank.
Tube
Coupling
Fill Valve
Assembly
Refill
Tube
Fill Valve
Riser
Tube
Fill Valve
Assembly
Refill
Tube
Fill Valve
Riser
Coupling
1092035-5-A 8 Kohler Co.

Removing Fill Valve Components (cont.)
Gently remove the fill valve and fill valve riser assembly.
If required, remove the washer from the bottom of the tank.
Kohler Co. 9 1092035-5-A

Replacing Fill Valve Components
Install the Fill Valve Assembly on the Riser
Perform the following steps in order to reassemble the fill valve
assembly on the fill valve body:
Carefully align the fill valve assembly with the coupling on the
riser.
Rotate the fill valve assembly clockwise 1/8 turn to fully engage
it.
Connect the refill tube to the fill valve assembly.
Replace the tank cover.
Turn the water on.
Plug the electrical cord for the toilet into the outlet.
Test the toilet for proper operation.
Install the Fill Valve Assembly and Fill Valve Riser Assembly
Perform the following steps to install the fill valve assembly in the
toilet:
If required, install or replace the washer at the bottom of the tank.
Insert the fill valve riser assembly into the hole in the tank.
Assemble the locknut, washer, and supply nut below the tank.
Tube
Coupling
Fill Valve
Assembly
Refill
Tube
Fill Valve
Riser
Tube
Fill Valve
Assembly
Refill
Tube
Fill Valve
Riser
Coupling
1092035-5-A 10 Kohler Co.