Kohler K-1913 User manual

Installation Guide
Rising Wall Bath
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-1913
1128532-2-G

Important Information
WARNING: Risk of injury or property damage. Please read all instructions thoroughly before
beginning installation, including the following requirements.
WARNING: When using electrical products, basic precautions should always be followed,
including the following:
DANGER: Risk of electric shock. Connect only to circuits protected by a Ground-Fault
Circuit-Interrupter (GFCI) or Residual Current Device (RCD).
WARNING: Unauthorized modification may cause unsafe operation and poor performance of
the product. Do not relocate the components, or make other modifications to the system other than
those specified in this document, as this could adversely affect the performance and safe operation.
Kohler Co. shall not be liable under its warranty or otherwise for personal injury or damage caused
by any such unauthorized modification.
Building materials and wiring should be routed away from heat-producing components.
Install to permit access for servicing.
Grounding is required. The unit should be installed by a qualified service representative, and grounded.
WARNING: Risk of electric shock. A licensed electrician should make all electrical connections.
1128532-2-G 2 Kohler Co.

Important Information (cont.)
WARNING: Risk of electric shock. Disconnect power before servicing.
NOTICE: Follow all local plumbing and electrical codes.
Table of Contents
Important Information .............................................................. 2
Tools and Materials ............................................................... 3
Before You Begin ................................................................. 4
Parts Identification ................................................................ 5
Construct the Framing ............................................................. 6
Confirm the Correct Cutout .......................................................... 8
Install the Drain Lines and Rough Plumbing ............................................. 9
Remove the Shipping Brackets ...................................................... 11
Remove the Door ................................................................ 12
Remove the Pulley Assemblies and Mounting Brackets .................................... 14
Remove the Receptor Tray ......................................................... 16
Disconnect the Components ........................................................ 17
Position the Bath ................................................................ 18
Level and Secure the Bath ......................................................... 20
Attach the Water Supply to the Accumulator ............................................ 21
Install the Receptor Tray, and Connect the Drains ........................................ 22
Install the Mounting Brackets and Pulley Assemblies ...................................... 24
Install the Door ................................................................. 26
Attach the Counterweights ......................................................... 27
Connect the Components .......................................................... 29
Adjust the Bath Door ............................................................. 30
Seal/Drain System Electrical Connections .............................................. 32
Heated Surface Electrical Connections (if equipped) ...................................... 34
Confirm Heated Surface Operation (if equipped) ......................................... 35
Install the Trim Caps and Access Panel ............................................... 36
Install the Finished Wall ........................................................... 38
Troubleshooting ................................................................. 38
Tools and Materials
Hex Wrenches
Removable
Bolt Adhesive 7/16", 9/16" and 7/8" Open-end wrenches
• Crowbar or small
pry bar
• Metal Shims
• Masking Tape
• Pencil
• Drop cloth or
protective material
• Standard wood working tools
and materials
Plus:
Silicone
Sealant
Kohler Co. 3 1128532-2-G

Before You Begin
NOTICE: Risk of personal injury. Handle the bath and frame carefully. Some edges may be sharp or
rough.
NOTICE: Risk of product damage. Handle the bath and frame carefully. The bath will break or
malfunction if handled carelessly.
NOTICE: Risk of product damage. Do not support the weight of the bath by the perimeter of the rim. To
avoid damage to the product, support the bath by its base or feet.
NOTICE: Risk of product damage and personal injury. Due to the weight and installation difficulty of
the product, Kohler Co. recommends that two people perform this installation. There are several
installation sequences that are very difficult if performed alone.
IMPORTANT! Use care when removing screws. All screws will be reused unless otherwise indicated. Do
not strip the heads.
IMPORTANT! Do not cut or remove any cable ties unless instructed. They are used to hold critical parts
in place, and are designed to stay in place throughout the installation.
IMPORTANT! If the installation site is in an area where frequent or prolonged power outages occur,
Kohler Co. recommends that a minimum 350 VA Uninterruptible Power Supply (UPS) be installed as a
backup power source to the bath controller. The UPS will ensure that door functionality is not
compromised in the event of a power outage.
Follow all local plumbing and electrical codes.
Depending on the installation, it may be necessary to disassemble parts of the bath to pass
through all doorways, hallways, and stairways between the staging area and the bathroom. There
will be several points in this installation where the installer will be asked if further disassembly
is required. All adjustments have been made at the factory. Installation time is less for jobs
requiring little or no disassembly.
IMPORTANT! Save all hardware. If disassembly is required, save and organize all hardware. Hardware
will be reused unless otherwise specified.
There are supplemental installation instructions located on the back of the access panel.
This bath requires three drains with separate P-traps. Allow for three drains connecting at the
stack in your installation.
The installation instructions outline the only parts that need to be removed or disassembled during
the installation process. Although many parts may appear to be removable, do not disassemble
anything unless instructed.
Unpack the bath in an open area.
Inspect the unit for damage and make sure parts such as counterweights, access panel, and trim
caps are accounted for. The unit shown in this manual has a left-hand drain and may appear
different than the unit you have purchased.
1128532-2-G 4 Kohler Co.

Parts Identification
Fill Spout/Accumulator
Trim Cap
Wall (RH)
Trim Cap
Wall (LH)
Roller Assembly (RH)
Pulley (LH)
Assembly
(includes limit
switch and
bumper)
Bumper
Mounting
Bracket
Access Panel
Support
Frame
Pulley Assembly (RH)
(includes limit switch and bumper)
Mounting Bracket
Power Connection for Door
(always opposite footwell drain side)
Receptor Tray
Bath
(Left Hand Drain shown)
Counterweight
Counterweight
Roller
Assembly
(LH)
Primary Footwell
Bath Drain
Second (Sidewall)
Drain Opening
Grab Bar
Controller
(Power Supply)
Door Assembly
(includes electronics
and brush seal)
Trim Cap Cover (LH)
Guide Tool
Trim Cap
Cover (RH)
Receptor Tray
Drain
Drain Valve for
Secondary Drain
Accumulator
Counterweight Guide
Product ID Label
Kohler Co. 5 1128532-2-G

1. Construct the Framing
All Installations
NOTICE: Measure your product for site preparation. Note the model number located on the blower
motor, then visit the product page at www.kohler.com for more information.
NOTICE: Adequate floor support must be provided.
NOTICE: Do not support the weight of the bath by the perimeter of the rim. To avoid damage to the
product, support the bath by its base or feet.
IMPORTANT! This product requires three 1-1/2″diameter drain outlets, three P-traps, and three separate
lines to the stack. In an ideal configuration, none of the drains should be combined, as performance may
suffer and the potential for backflow will increase. If required, the two bathing vessel drains (#1 and #2 in
diagram) may be combined downstream from the P-traps into a single 3″diameter drain line.
IMPORTANT! The drain for the receptor tray (#3) requires a dedicated P-trap and stack connection.
Follow all local plumbing and electrical codes.
Leave the stud pocket open and do not install the finished wall until after the bath has been
installed. This installation is best done with access from the backside of the studs, particularly from
each side.
NOTICE: Follow all local plumbing and electrical codes.
If the installation site is in an area where frequent or prolonged power outages occur, Kohler Co.
recommends that a minimum 350 VA Uninteruptable Power Source (UPS) be installed as a backup
power source for the bath controller. This will ensure the door will open in the event of a power
outage.
Construct 2x4 or 2x6 stud
framing according to
the roughing-in information.
Position the rough plumbing.
Verify that the subfloor offers adequate support, and is flat and level.
Drain Access
Plumbing configuration
may vary.
To Accumulator
To Handshower
Hot
Cold
Floor Plan for Left-Hand Drain Model
16"
(406 mm)
10" (254 mm)
24-1/2"
(622 mm)
3-1/2"
(89 mm)
(LH) Drain
Cutout
7-3/4" (197 mm)
3-7/8"
(98 mm)
10" (254 mm)
10" (254 mm)
Drain Cutout
Three Drain Cutouts (required)
Drain
Cutout
12
3
5-1/2" (140 mm)
30" (762 mm)
33-1/4"
(845 mm)
Front Edge of
Receptor Tray
GFCI Protected Outlet
(Opposite Side of
Accumulator Supply)
1
(RH) Drain Cutout
9-3/4"
(248 mm)
3-7/8" (98 mm
1128532-2-G 6 Kohler Co.

Construct the Framing (cont.)
Install a 120 V, 15 A, 60 Hz electrical outlet protected by a GFCI or RCD. The outlet must be located
on the side of the bath opposite the footwell drain outlet, within 24″(610 mm) of the controller).
Units with the heated surface feature will require a second electrical outlet within 24″(610 mm) of
the heated surface controller.
NOTE: Drain #1 is the sidewall drain/valve outlet. Drain #2 is the overflow and footwell drain outlet.
Drain #3 is the receptor tray drain outlet.
NOTE: Three drains are required for this product. Drains #1 and #2 require a 10″(254 mm) x 10″(254
mm) cutout.
NOTE: Drain #3, the receptor tray drain, requires a 10″(254 mm) x 10″(254 mm) cutout if access from
below is available. If above-the floor access is required to make the connections, a 10″(254 mm) x 16″(406
mm) cutout is required to allow access. The 10″(254 mm) wide cutout is critical to prevent subfloor
contact with the drain area of the receptor tray. If the subfloor and drain come into contact, enlarge the
cutout as needed or raise the bath using the adjustable feet. The receptor tray must be level and the drain
must rest comfortably through the subfloor.
Make sure the flooring offers adequate support for the bath, and verify that the subfloor is flat and
level.
The bath should be installed in an alcove installation. Construct a 2x4 or 2x6 frame.
Position the plumbing. Cap the supplies, and check for leaks.
Provide adequate ventilation and at least 15 cubic feet (.4 cubic meters) of open air space for cooling
the motor and supplying sufficient air to the blower. Do not install the blower motor closer than 1″
(25 mm) to the wall or other objects.
IMPORTANT! Use the chart below as a general guideline. Every installation varies. Hallways, corners,
stairways and other obstacles should be taken into account when determining how much disassembly is
required. Avoid unnecessary disassembly when possible.
Door Opening Recommended Installation Action
Larger than 33″(838 mm) No disassembly is required. Skip sections 4
through 8.
31″(787 mm) to 33″(838 mm) Remove the door from the bath and the
receptor from the support frame.
30″(762 mm) to 31″(787 mm) Full disassembly is likely. Follow all steps in
this manual.
Less than 30″(762 mm) The door open needs to be enlarged to a
minimum of 31″(762 mm).
Kohler Co. 7 1128532-2-G

2. Confirm the Correct Cutout
All Installations
NOTE: Drain #3, the receptor tray drain, requires a 10″(254 mm) x 10″(254 mm) cutout if access from
below is available. If above-the floor access is required to make the connections, a 10″(254 mm) x 16″(406
mm) cutout is required to allow access. The 10″(254 mm) wide cutout is critical to prevent subfloor
contact with the drain area of the receptor tray. If the subfloor and drain come into contact, enlarge the
cutout as needed or raise the bath using the adjustable feet. The receptor tray must be level and the drain
must rest comfortably through the subfloor.
Measure the cutout to confirm it is a minimum of 10″(254 mm) wide and 16″(406 mm) long.
Study the illustrations at the right. When the cutout is the correct size, the drain outlet on the
receptor tray and the surrounding material will not come in contact with the subfloor. The drain
outlet will protrude into the cutout when installed.
If the cutout is too small, the receptor tray will be too high. The counterweights will strike the
receptor tray when the door is raised and the door seals will not inflate.
16"
(406 mm)
10"
(254 mm)
Receptor Drain Cutout
Front Edge of
Receptor Tray
16" (406 mm)
10" (254 mm)
1/4" (6 mm)
Subfloor
1128532-2-G 8 Kohler Co.

3. Install the Drain Lines and Rough Plumbing
All Installations
Plumbing Access Considerations
Confirm adequate mounting and connection space exists for the faucet specified for your
installation.
Confirm adequate clearance for three P-traps.
If the unit is installed on a slab at a corner of the outside walls: Make connections to the
accessible end, or provide access to the plumbing connections if not able to do so through the front
access panel. Check the P-trap clearance for drains #1 and #2.
If the unit is installed on a slab back-to-back against the outside walls: Plan to provide adequate
access to the plumbing connections. Limited access is available through the access panel. Check the
P-trap clearance for drains #1 and #2.
When the unit is installed where the drain connections are accessible from below: Connections
can usually be made from underneath the unit.
Install the Rough Plumbing
IMPORTANT! This product requires three 1-1/2″diameter drain outlets, three P-traps, and three separate
lines to the stack. In an ideal configuration, none of the drains should be combined, as performance may
suffer and the potential for backflow will increase. If desired, the two bathing vessel drains (#1 and #2)
may be combined downstream from the P-traps into a single 3″or larger drain line.
Install the plumbing lines following the valve and trim manufacturer’s instructions. Recommended
supply fittings and locations are shown above.
Use 3/4″valves for optimal fill time.
Flush out the drains.
Receptor Tray Drain
Mixing Valve
Transfer Valve
To
Accumulator
To
Handshower
Install the drain lines.
Slotted
Overflow Drain
Install water accumulator line.
Accumulator
Fitting (supplied)
(not supplied)
3/4" NPT
Recommended Plumbing Configuration for Left-Hand Models
46" (1168 mm) From Subfloor Recommended
Sidewall
Bath Drain 3
2
1
Kohler Co. 9 1128532-2-G

Install the Drain Lines and Rough Plumbing (cont.)
Install the receptor tray drain line and P-trap.
Install the sidewall drain line and P-trap.
Install the slotted overflow drain line and P-trap.
Install the water supply line which will connect to the accumulator. Do not connect at this time.
1128532-2-G 10 Kohler Co.