Kohler K-8034 User manual

Installation Guide
Lighted Rain Panel
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-8034 K-8038
1078520-2-A

IMPORTANT INSTRUCTIONS
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). Grounding is required. The
unit should be installed and grounded by a qualified service
representative.
WARNING: Risk of electric shock. A licensed electrician
should route all electrical wiring.
WARNING: Risk of electric shock. Disconnect power before
servicing.
WARNING: Risk of injury or property damage. Please read
all instructions thoroughly before beginning installation.
CAUTION: Risk of electric shock or product damage. Make
sure the power cord is unplugged before removing the PDS
access cover.
NOTICE: Follow all plumbing, electrical, and building codes.
NOTICE: Provide generous, unrestricted service access to the
Power Data Supply (PDS). Provide access for servicing. This access
must be located immediately next to the PDS. Refer to the
roughing-in information.
1078520-2-A 2 Kohler Co.

Specifications
Shower Installation Application Ceiling-mount only
Ambient Temperature Max 104°F (40°C)
Maximum Relative Humidity 95% non-condensing
Power Data Supply (PDS) 100-240 VAC, 50-60 Hz, 1.7 A
PDS Power Cable Length 3 ft (0.91 m)
Chroma Data Cable Length 30 ft (9.14 m)
Chroma Power Cable Length 30 ft (9.14 m)
Tools and Materials
Sealant
Tape
• (4) 2-1/2" nipples
• Female fittings
• 1/2" copper tubing
• 2x4s and 2x6s
• Conventional woodworking
tools and materials
• #8 x 1-1/2" drywall screws
• Standard wood or drywall
screws
Phillips
Screwdriver
Plus:
Note: All nipples and fittings
are 1/2" NPT
5/64" and 5/32"
Hex Wrenches
Socket Wrench with
11 mm or 7/16" Socket
and Extension
Masking
Tape
Soldering
Supplies
Kohler Co. 3 1078520-2-A

Roughing-In
21"
(53.3 cm)
20-1/8"
(51.1 cm)
19-5/16"
(49 cm)
4-7/8" (12.4 cm)
Min Clearance
Bottom Face of
Ceiling Joist
3-11/16"
(9.3 cm)
9-5/8" (24.4 cm)
1/2" NPT
K-8038
4-13/16"
(12.2 cm)
3-5/16"
(8.4 cm)
K-8034
3-1/2" (8.9 cm)
Min Clearance
Bottom Face of
Template/Cradle
Sprayface Detail
Chroma Data Cable
30' (9.1 m)
30' (9.1 m)
Chroma Power Cable
2" (5.1 cm)
8-13/16"
(22.4 cm)
5/16"
(8 mm)
3-1/2"
(8.9 cm)
1/8" (3 mm)
8-1/4"
(21 cm)
5-1/2"
(14 cm)
1078520-2-A 4 Kohler Co.

Before You Begin
Observe all local plumbing, building, and electrical codes.
Read these instructions and determine all required components
along with their installation locations before beginning this
installation.
This product is designed for ceiling-mount installation only. Do
not install to a shower wall.
This manual covers vertical installation of the Power Data Supply
(PDS) in a service closet or 2x6 stud pocket. If the wall is
enclosed, an access panel must be provided for servicing.
The PDS may also be mounted under the floor joists. If mounting
under the floor, the unit must not be enclosed.
The PDS must be located within 25 ft (7.62 m) of the rain panel.
Inspect the supply piping for damage. Replace as necessary.
A licensed electrician should install a 15 A 120 V GFCI/RCD
electrical outlet within a service closet or 2x6 stud framing with
access panel, not more than 2 ft (0.61 m) from the intended
mounting location of the PDS.
The PDS may be hardwired. For optional hardwire installation of
the PDS, order Service Kit #1078031.
To reduce the risk of electric shock, locate the outlet, PDS, and
overhead rain panel within proximity to each other to allow for
each cable to have a drip loop.
Kohler Co. reserves the right to make revisions in the design of
products without notice, as specified in the Price Book.
Kohler Co. 5 1078520-2-A

1. Determine Components
Speakers
AC Power AC Power
Media Module
Router
Computer Internet
Audio
Source
If a steam generator
is not used, connect
the PDS directly to
the media box.
Incandescent
Lighting
AC Power
Power Data
Supply (PDS)
Steam
Adapter
Digital
Interfaces
Steam Generator
Digital
Mixing Valve
Lighted Rain Panel
1078520-2-A 6 Kohler Co.

Determine Components (cont.)
A 30 ft (9.14 m) power cable is supplied for connecting the
overhead rain panel to the PDS. A 30 ft (9.14 m) data cable is
supplied for connecting the PDS to the media module or steam
adapter.
Determine all required components along with their installation
locations before beginning the overhead rain panel installation.
Kohler Co. 7 1078520-2-A

2. Prepare the Site
The PDS is designed to fit within a service closet or 2x6 stud
cavity with access panel. The service closet or access panel must
be located less than 30 ft (9.14 m) from the overhead rain panel.
Recommended maximum distance is 25 ft (7.62 m).
If mounting boards are required, they should be positioned to
allow adequate surface area to attach the PDS via the existing
mounting holes on both ends of the PDS box.
Install a 120 V GFCI/RCD electrical outlet within the service
closet or 2x6 stud framing, within 24” (61 cm) of the PDS. Locate
the outlet in close proximity to the PDS to allow enough cable to
create a drip loop.
Note: For hardwire installations, order Service Kit #1078031.
Outlet
Drip Loop
2x6
Position
to far left.
Power Data Supply
Mounting Board
8-1/4" (21 cm)
2x6 Stud Cavity
6" (15.2 cm) Min
1078520-2-A 8 Kohler Co.

3. Install the Power Data Supply
Orient the PDS box within the service closet or access panel to
allow room for cover removal and connecting the cables. If
possible, connect the cables through the side holes rather than
those on the cover to avoid complicated cover removal for
servicing.
If installing the PDS within a 2x6 stud cavity, position it to the far
left of the cavity to allow room for connecting the cables to the
side holes.
Attach the PDS to structural framing or other secure surface using
standard wood or drywall screws (not supplied). Mounting
boards may need to be installed between stud framing.
Route the Chroma data cable from the PDS to the media module
or steam adapter.
Route the Chroma power cable from the PDS to the overhead rain
panel location.
Kohler Co. 9 1078520-2-A

4. Install the Supply Piping – Single Supply
Route the water supply lines.
Use the provided soldering template to construct a pressure
balancing loop; this will ensure proper alignment with the
product.
Assemble the pressure balancing loop with a tee positioned over
each of the four raised locations on the soldering template.
Solder the assembly while it is still attached to the soldering
template.
Remove the pressure balancing loop assembly from the soldering
template.
Connect the pressure balancing loop to the water supply.
Do not strap the pipes.
Temporarily install a nipple to each tee. Do not use any sealant.
Pressure
Balancing Loop
Soldering
Template
1/2" NPT Nipple
Pressure
Balancing
Loop
Clamp each tee
to template
during soldering.
6-3/4" (17.2 cm)
Soldering Template
6-3/4"
(17.2 cm)
9-5/8"
(24.4 cm) D.
1078520-2-A 10 Kohler Co.

5. Install the Supply Piping – Multiple Supplies
Route the water supply lines.
Use the provided soldering template to construct the pressure
balancing loops.
Assemble the pressure balancing loop with a tee positioned over
each of the four raised locations on the soldering template.
Solder the assembly while it is still attached to the soldering
template.
IMPORTANT! To maintain proper positioning of the tees and
ensure alignment with the product, the two pressure balancing loops
must be rigidly connected to each other while still on the soldering
template.
While still on the soldering template, rigidly connect the two
pressure balancing loops to each other.
Remove the pressure balancing loop assembly from the soldering
template.
Connect the pressure balancing loops to the water supplies.
6-3/4" (17.2 cm)
Soldering Template
6-3/4"
(17.2 cm)
Rigidly connect
to each other.
Soldering
Template
1/2" NPT Nipple
Pressure
Balancing
Loops
Clamp each tee
to template
during soldering.
9-5/8"
(24.4 cm) D.
Kohler Co. 11 1078520-2-A

Install the Supply Piping – Multiple Supplies (cont.)
Do not strap the pipes.
Temporarily install a nipple to each tee. Do not use any sealant.
1078520-2-A 12 Kohler Co.

6. Install the Support Framing
WARNING: Risk of injury or property damage.
Template/cradle must be properly secured to support the
weight of the rain panel. Secure the cradle to the framing
using a minimum of six #8 x 1-1/2″long drywall screws.
If installing the rain panel to a finished ceiling, remove drywall
from the installation location.
IMPORTANT! The soldering template must be secured to structural
framing.
Attach a mounting surface to structural framing of the ceiling
using #8 x 1-1/2″long drywall screws.
Construct the support framing using 2x4 studs as shown in the
illustration above. The face of each 2x4 should be installed flush
with the face of the ceiling joists.
Position the soldering template/cradle under the pressure
balancing loop(s), as illustrated. Attach the cradle to the support
framing.
Do not strap the pipes.
Pressure
Balancing Loop
Existing
Ceiling Joist
2x4
Bottom View
Soldering
Template/Cradle
Existing
Ceiling
Joist
Pressure
Balancing
Loop
2x4
12-1/4"
(31.1 cm)
14-1/2" (36.8 cm)
Kohler Co. 13 1078520-2-A

7. Install the Finished Ceiling
Build a 5″(12.7 cm) typical drop sill (including finished ceiling
material) around the mounting cradle using cut/modified 2x6
lumber.
Install the water-resistant wall board.
IMPORTANT! The rough opening (cutout) size must be within
specified limits (refer to cutout dimensions shown above). The seal
will not cover gaps greater than 1/4″(6 mm).
IMPORTANT! The balancing loop(s) must be centered within 1/8″
(3 mm) with the pipe nipples evenly spaced from the edges of
rough opening.
Cut out a 20-1/4″(51.4 cm) to 20-1/2″(52.1 cm) square at the
desired installation location.
Install the finished ceiling material (if using tile).
Double check that the finished drop sill is the proper height
relative to the cradle. The depth from the bottom of cradle to the
finished surface should be between 3-1/2″(8.9 cm) and 3-3/4″
(9.5 cm).
Cutout
Pressure
Balancing
Loop
Nipple
Cutout
Finished
Ceiling
2x4
Ceiling
Joist
2x6
Cut/Modified
Ceiling Joist
2x4
3-5/8" (9.2 cm) Typical
3-1/2" (8.9 cm) Min
Finished
Ceiling
5" (12.7 cm) Typical
4-7/8" (12.4 cm) Min
20-3/8" +/– 1/8"
(51.8 cm +/– 3 mm)
20-3/8"
+/– 1/8"
(51.8 cm
+/– 3 mm)
1078520-2-A 14 Kohler Co.

8. Install the Pipe Nipples and Light Panel
Remove the nipples.
Apply thread sealant to the threads of the nipples.
Reinstall the nipples to the tees/elbows.
Run water through the system to flush out any dirt or debris.
Attach the pre-routed chroma power cable to the light panel
assembly.
Insert the light panel into the rough opening of the finished
ceiling.
Pipe Nipple
Finished
Ceiling
Chroma
Power Cable
Light Panel
Assembly
Kohler Co. 15 1078520-2-A

9. Install the Waterway
IMPORTANT! This step requires two people.
Insert an escutcheon assembly into each of the four openings in
the light panel. Orient each assembly so the double ribs on the
inside of each leak shield are facing toward the center of the
panel.
While one installer holds the light panel in place in the rough
opening, the other installer threads all four adapters onto the pipe
nipples to hang the fixture. Once the adapters are installed, the
panel can be released and should not be tight to the ceiling.
IMPORTANT! Secure the adapter sufficiently to create a water-tight
seal for the pipe threads.
Secure the adapter using the 11 mm bit (provided) with the 11
mm or 7/16″socket extension, and socket wrench. Use masking
tape to hold the bit in place to prevent it from falling off and
causing damage to your shower. The light panel should still sit
loosely against the ceiling.
Install the waterway by aligning the notch in the waterway with
the double ribs on the inside of the leak shield.
Waterway
Screw
Adapter
Extension
Socket Wrench
With 11 mm Bit Double Ribs
Inside Leak
Shield
Escutcheon
Finished
Ceiling
Light Panel
Frame
Notch
1078520-2-A 16 Kohler Co.

Install the Waterway (cont.)
Press the waterway into place over the adapter. Secure the
waterway to the adapter with the screw provided. Do not
completely tighten at this time.
Repeat for the remaining waterways.
Tighten the screws evenly until the outer frame of the panel is
against the ceiling, and the sealing gasket is compressed.
IMPORTANT! If the light panel frame does not meet the ceiling
within 1/32″(1 mm), the pipe nipple is too long. Check the rough
depth. Try turning the threaded adapter further, or use a shorter
pipe nipple.
Kohler Co. 17 1078520-2-A

10. Install the Trim
Attach the Sprayhead
With the hinge ribs of the sprayhead facing up, attach the
sprayhead to the waterway.
Using a 5/32″hex wrench, secure the sprayhead to the waterway
with the two hex screws. Do not overtighten.
Check the sprayhead for upward and downward movement and
that it sits squarely within the escutcheon.
Place the nozzle membrane over the sprayhead.
Align the long edge of the membrane with the hinge ribs.
NOTE: For optimum performance, ensure that the membrane is
applied evenly.
Applying pressure evenly, press the membrane seal into the
sprayhead groove.
Attach the Sprayface
Tilt the sprayhead to expose the ribs on the end.
Position the grooves of the sprayface over the hinge ribs of the
sprayhead.
Rotate the loose end of the sprayface toward the sprayhead, as
illustrated. Press the sprayface into place to cover the sprayhead.
Tilt the sprayhead assembly to expose the setscrew holes on the
edge of the sprayhead.
Hinge Ribs
Setscrews
Hex Screws
Groove
Waterway
Sprayhead
Sprayface
Attach the Sprayhead Attach the Sprayface
Nozzle Membrane
Hinge
Ribs
Escutcheon
1078520-2-A 18 Kohler Co.

Install the Trim (cont.)
CAUTION: Risk of product damage. If the setscrews protrude
outside of the sprayface frame, they will scratch the finished
surfaces of the escutcheon. Install the setcrews flush with the edge
of the sprayface frame.
Using a 5/64″hex wrench, turn the setscrews counterclockwise
until they are flush with the edge of the sprayface frame.
Repeat for the remaining sprayfaces.
Kohler Co. 19 1078520-2-A

PDS Connection Key
To Rain Panel
Assemble terminator onto
"DATA OUT" connector.
RS485 Chain
(CSM, Steam Generator)
1/2" NPT
Power Cord
Fuse
Line: Black
Neutral: White
Connect power cord
conductors to supply
with wire nuts.
Chroma Data Cable
30' (9.14 m)
Chroma Power Cable
30' (9.14 m)
Ground: Green
Status
LED
1078520-2-A 20 Kohler Co.