Kohler K-18829 Assembly instructions

Installation and Care Guide
In-Wall Tank and Carriage
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-18829
1246750-2-B

Tools and Materials
Before You Begin
IMPORTANT! 2x4 framing is required for this product.
IMPORTANT! In areas with freezing temperatures, install on an
interior wall. If installed on an exterior wall, provide adequate
insulation to prevent the possibility of freezing.
NOTE: If 2x6 framing is used, the drain outlet may be angled 45
degrees in either direction.
NOTE: This device is not intended to be used as a retrofit device
for 1.28 gpf (4.8 lpf) water closets.
NOTE: Performance may vary. This product was tested with toilets
that are listed as compatible.
Only bowl numbers K-6299 and K-6300 are compatible with the
carriage.
During installation, make sure the inlet tube connections and
gaskets remain fully engaged to ensure a watertight seal.
Carefully inspect the carriage and tank for damage.
Observe all local plumbing and building codes.
For Installations with a Bidet Seat
CAUTION: Risk of personal injury. If the optional electrical
outlet will be installed, it must be connected to a GFCI or
RCD protected circuit.
Plus:
• Conventional woodworking
tools and materials
• 1/4" x 2" (51 mm) Min
Concrete Expansion Bolts
(for concrete subflooring)
Optional:
• Assorted electrical tools
5/8"
(16 mm)
1/2"
1/4 turn, 1/2" NPT
Supply Shut-off with
5/8" or Shorter Handle
1/4" x 2" (51 mm) Min
Lag Bolts
Silicone Plumbers
Grease
Assorted Drill Bits
1246750-2-B 2 Kohler Co.

Before You Begin (cont.)
If the optional electrical outlet will be installed, observe all local
electrical codes.
Kohler Co. 3 1246750-2-B

1. Install the Framing
IMPORTANT! Note the 1-3/4″(44 mm) or 3-1/4″(83 mm)
dimension from the front edge of the framing to the center of the
outlet pipe depending on your installation. This dimension is critical
for the installation.
NOTE: Refer to the specification sheet for more details and
dimensions for roughing-in.
NOTE: The waste outlet pipe may need to be relocated for this
installation.
NOTE: A PVC elbow is supplied with this product. A cast iron
elbow may be required by codes in some areas. The height of the
toilet drain pipe may need to be adjusted if the cast iron elbow is
used.
NOTE: Double studs must be used on either side of the stud
pocket.
Construct the stud pocket using the dimensions shown.
1-3/4" (44 mm) [2x4 Studs]
3-1/4" (83 mm) [2x6 Studs]
2x4 Studs or
2x6 Studs
8" (203 mm) [Plywood Subfloor]
9-1/8" (232 mm) [Concrete Subfloor]
Waste
Outlet
Pipe
23-1/4"
(591 mm)
PVC
Elbow
1-3/4" (44 mm) [2x4 Studs]
3-1/4" (83 mm) [2x6 Studs]
1246750-2-B 4 Kohler Co.

Install the Framing (cont.)
The center of the waste outlet should be 1-3/4″(44 mm) or 3-1/4″
(83 mm) from the front edge of the framing.
Kohler Co. 5 1246750-2-B

2. Prepare the Carriage
Install the Drain Clamp
Unpack and inspect the carriage.
NOTE: If using 2x6 studs, install the mounting frame reversed into
the back notches.
Install the mounting frame into the front notches on the bottom
of the carriage.
Insert the PVC elbow into the mounting frame.
Secure the elbow in place with the drain clamp. Push the clamp
into the frame until it locks into place.
Install the Electrical Box - Bidet Installations
NOTE: The 1201721 electrical box kit is required when the K-4744
bidet seat will be paired with the bowl. Skip this step for standard
installations.
Connect the electrical box to the carriage at the location shown.
Electrical
Box
Back View
Mounting
Frame
PVC
Elbow
Front View
Drain
Clamp
1246750-2-B 6 Kohler Co.

3. Adjust the Carriage Height
IMPORTANT! If the carriage is not correctly adjusted, the bowl rim
height may not be compliant with applicable codes. The finished
wall would need to be removed to make the correct adjustments if
the bowl height is not correct.
NOTE: For the K-6299 and K-6300 bowls, the minimum rim height
is 15″(381 mm) when the finished floor is even with the bottom of
the carriage legs. The maximum rim height is 23″(584 mm) when
the legs are fully raised. The carriage can be adjusted up to 8″(203
mm), with 6″(152 mm) or less of adjustment sufficient in most
installations.
Move the carriage into place in the stud pocket.
Temporarily secure the carriage in place so it will not fall.
Install the threaded rods several turns into the carriage.
Make a mark on the carriage 2-5/8″(67 mm) above the top of the
threaded rod.
Measure from the finished floor to the mark (A) to determine the
rim height of the bowl.
Leg
Nut
A
Finished
Floor
Mark the carriage.
2-5/8"
(67 mm)
Threaded
Rods
Kohler Co. 7 1246750-2-B

Adjust the Carriage Height (cont.)
Loosen the nuts securing the legs to the carriage.
NOTE: As the carriage is lowered, make sure the elbow aligns with
the toilet drain pipe.
NOTE: If applicable, confirm the gasket on the elbow stays
correctly positioned as it enters the toilet drain pipe.
Adjust the carriage until the desired height is reached. Securely
tighten the nuts using a wrench to secure the legs in place.
NOTE: If a cast iron elbow is required, make the connections
following all applicable codes.
1246750-2-B 8 Kohler Co.

4. Install the Carriage
Align the carriage flush with the front edge of the studs. The
front of the carriage should be flush with the front edge of the
studs or set back slightly for finished wall installation.
Check the front of the carriage for plumb.
Mark the hole locations for the six lag bolts, one for each foot and
two on either side of the carriage.
Drill pilot holes (remove the carriage if needed) to reduce the risk
of the lag bolts causing the studs to split or crack.
NOTE: If the carriage is installed onto a concrete sub-floor use
concrete expansion bolts (not supplied) when securing the feet of
the carriage.
Secure the carriage to the support studs using 2″(51 mm) long
(minimum) lag bolts (not supplied), one at each location.
Connect the Power - Bidet Seat Installations
WARNING: Risk of personal injury. Disconnect the power
before connecting the wires.
Lag Bolts
Kohler Co. 9 1246750-2-B

Install the Carriage (cont.)
CAUTION: Risk of personal injury. The electrical outlet
must be connected to a GFCI or RCD protected circuit or an
accessible Ground-Fault Circuit-Interrupter (GFCI) or
Residual-Current Device (RCD) must be installed.
NOTE: This step is only needed if the electrical box was installed in
the ″Prepare the Carriage″section.
Connect the power following all applicable codes.
1246750-2-B 10 Kohler Co.