Installation Guide
Real Rain Showerhead
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1386786-2-A
Tools and Materials
Pipe Cutter
3/16"
3/8"
Plus:
• 2x4s
• Drop ear elbow
• Conventional woodworking and
plumbing tools and materials
1386786-2-A 2 Kohler Co.
5" (127 mm)
14" (356 mm)
16" (406 mm)
18" (457 mm)
7"
(178 mm)
3-7/8"
(98 mm)
19"
(483 mm)
Roughing-In
Kohler Co. 3 1386786-2-A
Before You Begin
WARNING: Risk of scalding. High water temperature can
cause severe burns. Set the water temperature at or below
120°F (49°C) following the adjustment procedure in the valve
Installation Guide.
CAUTION: Risk of personal injury. If the rain panel is not
securely held in place during installation, the product may
fall causing personal injury. Get help when installing the
panel assembly and waterways.
Observe all local plumbing and building codes.
Read these instructions and determine all required components
along with their installation locations before beginning this
installation.
A shower valve must be installed upstream for temperature and
shut off control.
IMPORTANT! Install the shower valve, push button, or digital
interface to be within arm’s reach when under the Real Rain panel.
1386786-2-A 4 Kohler Co.
Before You Begin (cont.)
Refer to the Specification Sheet on your product page at
kohler.com for required panel trim and push button or digital
valve.
A dropped ceiling (not shown) is required in the shower area
where this product is to be installed.
IMPORTANT! Risk of product damage. Ensure cutout and framed
opening of dropped ceiling meet the required dimensions listed. If
the finished ceiling thickness exceeds 4-1/2″ (114 mm), shim behind
the mounting bracket.
This product is designed for ceiling-mount installation only. Do
not install to a shower wall.
For service parts information, visit your product page at
www.kohler.com/serviceparts.
Kohler Co. 5 1386786-2-A
Inlet Pipe
Hole
1. Install the Support Framing and Bracket
NOTE: These instructions show one possible ceiling configuration.
Adapt to fit your application.
Using 2x4s, construct support framing to mount the bracket. The
face of each 2x4 should be installed flush with the face of the
ceiling joists.
Ensure that each corner of the bracket can be mounted to the
support framing with at least two screws.
CAUTION: Risk of personal injury. If the bracket is not
securely held in place during installation, the product may
fall causing personal injury.
Align the bracket so that its edges are parallel to the shower
walls. Orient the inlet pipe hole for the easiest connection to the
water supply.
Install the bracket with at least two #8 1-1/2″ screws per corner.
Screws may be installed in any two of the four holes per corner.
1386786-2-A 6 Kohler Co.
Inlet Pipe
Hole
Inlet Pipe
Hole
Water
Supply
2. Install the Water Supply
Install the push button or digital valve using the separate
instructions provided.
Route the water supply to the ceiling where the shower is to be
installed.
Water
Supply
Kohler Co. 7 1386786-2-A
Drop Ear Elbow
Inlet
Pipe
Water
Supply
3. Install the Waterway
Connect the inlet pipe to the drop ear elbow.
Install the drop ear elbow so that the inlet pipe drops through the
inlet pipe hole in the bracket. Add support as necessary.
Connect the water supply to the drop ear elbow.
1386786-2-A 8 Kohler Co.
4"
(102 mm)
Inlet Pipe
Finished
Ceiling
Finished
Ceiling
Cutout
Ceiling
Joist
18-1/8"
(460 mm)
Cutout
1-1/4"
(32 mm)
18-1/8"
(460 mm)
4. Install the Dropped Ceiling
Construct a 4″ (102 mm) minimum to 4-1/2″ (114 mm) maximum
dropped ceiling in the shower area. The framed cutout should be
centered around the bracket, with the framing 18-1/8″ (460 mm)
+/- 1/8″ (3 mm) apart in both directions.
IMPORTANT! Risk of product damage. Ensure cutout and framed
opening of dropped ceiling meet the required dimensions listed. If
the finished ceiling thickness exceeds 4-1/2″ (114 mm), shim behind
the mounting bracket.
Trim the inlet pipe to 1-1/4″ (32 mm) above the plane of the
finished ceiling opening.
De-burr, clean, and lubricate the inlet pipe to prevent damage to
the water inlet gasket when the shower unit is installed.
Kohler Co. 9 1386786-2-A
Leveling
Nut
Sealing
Washer
5. Install the Shower Unit
CAUTION: Risk of personal injury. If the shower unit is
not securely held in place during installation, the product
may fall causing personal injury.
Thread a leveling nut onto each stud on the bracket.
Install the shower unit to the bracket. Each leveling nut should
stick through the shower unit. The copper inlet pipe should stick
through the water inlet gasket. Loosely install four sealing
washers (metal side down) and nuts on the leveling nuts.
Place a level across the shower unit and level by adjusting the
leveling nuts.
Hold the leveling nuts and tighten the nuts.
Ensure the foam gasket is compressed between the shower unit
and the ceiling. Fill any gaps with 100% silicone sealant.
Stud
Nut
1386786-2-A 10 Kohler Co.
6. Final Water Connections
Turn on the water to flush debris from the system.
Turn off the water and install the quick-connect elbow to the inlet
pipe.
Connect the manifold hose to the manifold.
Kohler Co. 11 1386786-2-A
Locked
Unlocked
7. Install the Rain Panel Assembly
Install the rain panel trim using the Installation Guide for the
trim.
Secure the rain panel assembly to the back panel by pushing the
corner fasteners upwards until a ″click″ is heard from each corner.
Ensure each corner fastener is in the locked position as shown.
Install the center fastener with a 3/16″ hex wrench.
Install the logo cap over the center fastener.
Fold the covers onto the four corner fasteners.
1386786-2-A 12 Kohler Co.
Drips
Drips
Stream
8. Operation
When the shower is turned on, rain droplets will gradually drip
from the rain nozzles and water will briefly stream from the
deluge nozzles until the panel reaches full flow.
Activate the deluge function by pressing the push button valve or
the icon on the digital valve user interface. Water will stream
from the centermost deluge nozzles for about 8 seconds.
NOTE: For optimal deluge performance, wait about 30 seconds
between activations of the deluge function. Activating the deluge
function more frequently may reduce the amount of water streaming
from the deluge nozzles and dripping from the rain nozzles.
NOTE: When the water is turned off, the deluge function will
activate automatically. Water will continue to drip until no water is
retained in the showerhead.
Care and Cleaning
For best results, keep the following in mind when caring for your
KOHLER product:
Kohler Co. 13 1386786-2-A
Care and Cleaning (cont.)
•
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.
•
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 detailed cleaning information and products to consider, visit
www.kohler.com/clean. To order Care & Cleaning information, call
1-800-456-4537.
1386786-2-A 14 Kohler Co.
Corner
Fastener
Cover
Logo Cap
Center Fastener
Filter Replacement
Remove the Rain Panel
Remove the logo cap. Remove the center fastener with a 3/16″
hex wrench.
Gently pry the corner fastener covers off to reveal the corner
fasteners.
Locked
Unlocked
IMPORTANT! Risk of product damage. The corner fasteners are of
a quick connect type. Only use hand tools on these fasteners.
While supporting the panel, turn each corner fastener 90 degrees
to the unlocked position. Remove the rain panel.
Kohler Co. 15 1386786-2-A
Felt Filter
Screen Filter
Filter Cap
9. Filter Replacement, cont.
Unscrew the filter cap to remove.
Rinse the screen filter and filter cap.
Replace the felt filter.
Reinstall the filter assembly and rain panel.
Troubleshooting
This troubleshooting guide is for general aid only. For service and
installation issues or concerns, call 1-800-4KOHLER.
Troubleshooting Table
Symptoms Probable Cause Recommended Action
1. Incomplete rain
coverage.
A. Nozzles are
clogged.
A. Rub nozzles clean
with a finger or soft
brush. Clean panel
per care and cleaning
guide.
1386786-2-A 16 Kohler Co.
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