Kohler Digital Interface K-683 User manual

Installation Guide
Digital Interface
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-683, K-685 K-684, K-686
1043184-2-B

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 Earth-Leakage Circuit Breaker (ELCB). 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.
NOTICE: Follow all plumbing, electrical, and building codes.
Specifications
Pressures
Maximum Static Pressure 125 psi, 862 kPa, 8.6 bar
Supply Pressure Differential* Max 5 psi, 34.5 kPa, 0.34 bar (Equal pressures recommended.)
Minimum Flow Rate 1.6 gpm (Less than 72 psi dynamic pressure.)
6 lpm (Less than 500 kPa maintaining pressure.)
2.1 gpm (Greater than 72 psi dynamic pressure.)
8 lpm (Greater than 500 kPa maintaining pressure.)
Temperatures
Programmable Temperature Max 120°F (49°C) Min 79°F (26°C) Full cold may also be selected.
Default Temperature at Start-up 102°F (39°C)
Minimum Mixed Temperature
Differential from Hot Supply 3.6°F (2°C)
Optimum Thermostatic Control Range 86°F (30°C) to 120°F (49°C)
Temperature Stability at Recommended
Supply Conditions +/- 1.6°F (1°C)
Ambient Temperature Greater than 34°F (1°C), Max 104°F (40°C)
Maximum Relative Humidity 95% non-condensing
Electrical
Electrical Service 100-240 VAC, 50-60 Hz, 1.5 A
User Interface Cable Length (supplied) 30 ft (9.14 m)
* In commercial applications where there is a large difference in hot and cold supply pressures or frequent
fluctuation in either supply line is anticipated, it is strongly recommended that pressure regulators be
installed.
1043184-2-B 2 Kohler Co.

Thank You For Choosing Kohler Company
We appreciate your commitment to Kohler quality. Please take a few minutes to review this manual before
you start installation. If you encounter any installation or performance problems, please don’t hesitate to
contact us. Our phone numbers and website are listed on the back cover. Thanks again for choosing Kohler
Company.
Tools and Materials
Screwdrivers
Jigsaw/Saber
Saw
Sealant
LevelPencil
Drill
Plus:
• Shims
• Suction Cup (Provided)
Kohler Co. 3 1043184-2-B

Roughing-In
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.
A licensed electrician should install a 120 V GFCI electrical outlet, within the stud framing, in close
proximity to the electronic valve. The interface(s) is/are powered through the connection(s) with the
valve.
Install the valve prior to installing the interface(s).
Kohler Co. reserves the right to make revisions in the design of faucets without notice, as specified
in the Price Book.
7-5/8"
(19.4 cm)
3-5/8" (9.2 cm)
4-1/2" (11.4 cm)
30' (9.14 m)
30' (9.14 m)
8-Pin Interface Cable
4-Pin Auxiliary Interface Cable
Cutout
7-11/16"
(19.5 cm)
3-11/16" (9.4 cm)
Cutout Detail
1/2" (1.3 cm) Min Clamp
Arm Clearance
1/4" (6 mm) Min
Interface Lip
Clearance
Clamp Arm
8-1/2"
(21.6 cm)
3-5/8" (9.2 cm) –
4-5/8" (11.7 cm)
Wall Cavity
Depth
3/16" (5 mm) Min –
2" (5.1 cm) Max Depth
1043184-2-B 4 Kohler Co.

1. Preparation
If not already installed, install the digital valve at this time according to the instructions packed
with the product.
NOTE: The optional auxillary interface, with the 4-pin cable, is located outside the showering enclosure,
while the primary interface, with the 8-pin cable, is located inside the showering enclosure.
Determine all required components along with their installation locations before beginning this
installation.
Custom showering experiences other than the preprogrammed options must be programmed into
the interface prior to use. Refer to the ″Digital Interface Homeowners Guide.″
NOTE: The 8-pin cable is used for the primary interface and the 4-pin for the auxillary interface.
Verify that both the primary and auxillary interface are located so the interface cable easily spans
the distance between the valve and interface connection.
30' (9.14 m) 8-Pin Interface Cable
30' (9.14 m) 4-Pin Interface Cable
Connector
Drip Loop
Drip Loop
Drip Loop
Drip Loops
Power Supply
Outlet
Primary Interface
(Inside Shower)
Auxiliary Interface
(Outside Shower)
Kohler Co. 5 1043184-2-B

2. Prepare the Site
NOTE: Portrait interface shown, landscape interface also available.
NOTE: Allow for a 1/4″(6 mm) overlap for the lip of the wall sleeve and a minimum clearance of 1/2″
(1.3 cm) around the back of the opening to enable the clips to fully engage.
Refer to the rough-in information. With a pencil, mark the cut lines onto the finished wall.
Carefully cut out the opening in the finished wall following the penciled guidelines.
For thin finished wall materials of less than 3/16″(5 mm), shim around the back of the opening to
provide adequate support for mounting the interface wall sleeve.
1/4" (6 mm)
Interface lip
Cutout Wall Shim
Clamp Arm
7-11/16"
(19.5 cm)
3-11/16"
(9.4 cm)
Shim thin walls if
necessary.
52" (132.1 cm)
1/2" (1.3 cm) Min
Clamp Arm
Clearance
3/16" (5 mm) Min –
2" (5.1 cm) Max Depth
1043184-2-B 6 Kohler Co.

3. Install the Interface
CAUTION: Risk of product damage. Do not use power screwdrivers to install the interface.
NOTE: The clamp arms can be removed and turned upside down to allow installation to thicker walls.
Measure the finished wall thickness.
If appropriate, flip the clip arms to accommodate thicker wall materials. Refer to the above
illustration.
Secure the interface cable, from the valve, with a zip tie to the back of the wall sleeve allowing
approximately 18″(45.7 cm) of cable to hang free.
Insert the free end of the interface cable into the opening of the wall sleeve.
Tuck the clamp arms into the slots of the sleeve.
Apply a bead of silicone sealant into the groove around the backside of the sleeve lip.
Insert the sleeve into the cutout.
Turn the clamp arms so that they are perpendicular to the opening.
Handtighten the screws. Do not overtighten.
Wipe away any excess sealant from around the front of the sleeve. Use care not to get sealant on the
outer surface of the sleeve.
Remove the cap from the interface cables.
Connect the interface to the interface cable.
Carefully feed the connection through the hole in the wall sleeve and into the wall cavity. A drip
loop will automatically be formed in the cable.
Flip clamp arms for
thicker wall material,
1-1/4" (3.2 cm) – 2"
(5.1 cm).
Thinner Wall, 3/16" (5 mm) –
1-1/4" (3.2 cm)
Apply silicone
sealant.
Tuck clamp
arms into slots.
Do not use power
screwdriver.
Insert sleeve and
untuck clamp arms.
Sleeve
Cable
Drip Loop
Interface
Secure cable.
18"
(45.7 cm)
Min
Control
Knob
Kohler Co. 7 1043184-2-B

Install the Interface (cont.)
Verify the gasket is in place on the interface.
Slide the body of the interface into the sleeve.
Firmly press on the interface with the palms of your hands until it snaps into place.
Install the control knob.
1043184-2-B 8 Kohler Co.

4. Complete the Installation
IMPORTANT! Make drip loops in all cables and cords.
Press the clips to release and open the access door on the valve.
Slide the hinge side of the door in either direction until one side slips free.
Remove the door.
Connect the interface cable(s) to the valve.
Connect the power supply to the valve.
Verify all molded grommets are in place before closing the access cover.
Reinstall the access door.
To close the access door, press on the tabs until the clips snap into place.
Plug the power supply into the outlet.
5. Installation Checkout
Turn on the water supply to the valve.
Check all connections for leaks and make any adjustments as needed.
Turn on the main power supply. You should hear the valve power up and the power icon on the
user interface will be lit with a green pulsing light.
If not already completed, refer to the ″Digital Interface Homeowners Guide″to set up the interface.
Screws
Molded Grommets
Internal Interface Cable
Optional External
Interface Cable
Drip Loop
Drip Loop
Clip
Tab Door
Drip Loop
Power Supply
Power Supply
Kohler Co. 9 1043184-2-B

Installation Checkout (cont.)
NOTE: For more information about using the user interface and its menus, refer to the user interface
Homeowners Guide.
At the main menu of the interface select SHOWER > Options > All On. This will select all connected
components and purge the air from the system.
Check for leaks and make any adjustments as needed.
Verify that the water flow is sufficient for your showering needs.
6. Troubleshooting
CAUTION: Risk of personal injury. The valve may contain hot water; be careful when draining any
residual water.
IMPORTANT! Turn off the power and water supply to the valve before performing any maintenance.
It is recommended that any valve maintenance should be performed by an authorized Kohler service
representative.
This troubleshooting guide is for general aid only. For service and installation issues or concerns, call
1-800-4-KOHLER.
Troubleshooting Table
Symptoms Probable Cause Recommended Action
1. Control panel is not lit. A. Power supply is not plugged
into the outlet.
A. Plug the power supply into the
outlet.
B. Power supply connection to the
valve may be loose or
disconnected.
B. Check power supply connections to
the valve and reconnect if needed.
C. Interface cable connections may
be loose or disconnected.
C. Check all interface cable
connections, connect if needed.
D. Circuit breaker has been
tripped.
D. Reset the circuit breaker.
E. The valve memory may require
resetting.
E. Disconnect and reconnect the
power supply from the valve.
F. If none of the recommended
actions for the above issues
correct the symptom, the valve
or interface requires servicing.
F. Contact your Kohler Co. authorized
service representative.
2. The interface power
indicator pulses but does
not turn on.
A. Interface cable connections may
be loose or disconnected.
A. Check all interface cable
connections, connect if needed.
B. If the above recommended
action does not correct the
symptom, the interface or valve
requires servicing.
B. Contact your Kohler Co. authorized
service representative.
3. The interface functions
normally but no water
flows from the
components.
A. Inlet/outlet fittings may be
blocked.
A. Check the inlets and outlets for
blockage or debris. Clean the inlet
screens. Refer to the ″Clean the
Inlet Screens″section in the Valve
Homeowners Guide.
B. Hot and cold water supplies are
not turned on.
B. Turn on the water supply to the
valve.
C. The valve memory may require
resetting.
C. Disconnect and reconnect the
power supply from the valve.
D. System error. D. Check the user interface for an
error code. Refer to the
″Diagnostics″section in the Digital
Interface Homeowners Guide.
1043184-2-B 10 Kohler Co.