KOHLER K-527, K-527-E, K-558, K-558-E Installation Manual

Installation Guide

Digital Interface

K-527, K-527-E, K-558,

K-558-E

M product numbers are for Mexico (i.e. K-12345M)
Los números de productos seguidos de
M corresponden a México (Ej.
K-12345M)
Français, page ″Français-1″
Español, página ″Español-1″

1143086-2-E

IMPORTANT INSTRUCTIONS

WARNING: When using electrical products, basic
precautions should always be followed, including the
following:

WARNING: Risk of electric shock. Connect only to a circuit

protected by a Ground-Fault Circuit-Interrupter (GFCI)*.
Grounding is required. The unit should be installed and
grounded by a qualified service representative.

WARNING: Risk of electric shock. A qualified 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.

*Outside North America, this device may be known as a Residual
Current Device (RCD).

Specifications

Interface

Ambient Temperature Max 125°F (51.5°C)
Maximum Relative Humidity 100% condensing (External surface only)
User Interface Cable Length 20’ (6.1 m)

Valve

Ambient Temperature Greater than 34°F (1°C), Max 104°F

Maximum Relative Humidity 95% non-condensing
Electrical Service 120 V, 15 A, 60 Hz

1143086-2-E 2 Kohler Co.

(40°C)

Tools and Materials

Pencil Level

Phillips
Screwdriver

Tape Measure

Drill and 1/4" Drill Bit

Silicone Sealant

1-3/8" or 35 mm
Hole Saw

Kohler Co. 3 1143086-2-E

2-11/16"
(68 mm)

7-3/4"
(197 mm)

Roughing-In

3/4"
(19 mm)

Cable

20' (6.1 m)

18" (457 mm)

Ø 1-3/8"
(35 mm)

Recommended
58" (1473 mm)
To Floor

1143086-2-E 4 Kohler Co.

Outlet

Power
Cord

Interface

Drip
Loop

Interface

Coupler

Drip Loop

Outlets

Supply Inlets

20' (6.1 m)
Cables

1. Preparation

NOTE: Your system can be set up to use two user interfaces. One
interface, installed inside the shower, is required.

If not already installed, install the two- or three-port digital valve
according to the instructions packed with the product.

Determine the locations of all required components before
beginning installation.

Allow enough slack in the cables for drip loops.
Route the interface cable(s) to the interface installation location.
Complete the finished wall.

Kohler Co. 5 1143086-2-E

Tabs

Apply
sealant.

1-3/8"
(35 mm)
Hole

Anchor

2. Install the Mounting Bracket

Refer to the ″Roughing-In″ section for recommended mounting
bracket location.

Hold the bracket at the installation location. Mark the center hole
and two mounting holes on the wall.

Using a hole saw, cut a 1-3/8″ (35 mm) hole at the marked
location.

Using a 1/4″ drill bit, drill holes at the two mounting hole
locations. Install the anchors

Generously apply sealant in the groove on the back of the
mounting bracket.

Pull the cable through the center hole of the bracket.
Position the bracket with the tabs up. Secure to the wall with the

screws.
Cover the screws with sealant.

Apply
sealant.

1143086-2-E 6 Kohler Co.

Apply grease
in both ends.

Hook onto
the bracket.

Coupler

Connect

click in place.

the cables.

3. Install the Interface

Apply grease (provided) into both ends of the coupler.
Connect the cable from the wall and the interface to the coupler.

Ensure the cables fully click into the coupler.
Feed the cable and coupler into the hole in the wall. Ensure a

drip loop is made.
Hook the top of the interface onto the mounting bracket, then

press the bottom until it clicks in place.

Press to

Kohler Co. 7 1143086-2-E

Solid
Boot

Slide the split boot onto

Split
Boot

the interface cable.

4. Complete the Installation

IMPORTANT! Make drip loops in all cables.

Press a split boot onto each interface cable.
Connect the interface cable to the valve. Ensure the cable fully

clicks into the valve socket.
Press the boot over the connector and into the valve socket to seal

the connection.
If only one interface is installed, insert a solid boot into the

unused socket.

5. Installation Checkout

Turn on the water supply to the valve.
Check all connections for leaks and make any adjustments as

needed.
Plug in the valve. You should hear the valve power up and the

power icon on the user interface will be lit.
If not already completed, refer to the ″Digital Interface

Homeowners Guide″ to set up the user interface.

NOTE: For more information about using the user interface and its
menus, refer to the ″Digital Interface Homeowners Guide.″

Press the power icon to turn on the shower.
Check for leaks and make any adjustments as needed.

1143086-2-E 8 Kohler Co.

Installation Checkout (cont.)

Verify that the water flow is sufficient for your showering needs.

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.

NOTICE: Valve maintenance should be performed by a KOHLER
Authorized Service Representative.

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. Control panel

is not lit.

A. Valve is not

plugged into the
outlet.

B. Interface cable

connections may
be loose or
disconnected.

C. Circuit breaker has

been tripped.

D. The valve memory

may require
resetting.

E. A ″straight-

through″ cable or
coupler was used
to connect the
interface to the
valve.

F. If none of the

recommended
actions for the
above issues
correct the
symptom, the
valve or interface
requires servicing.

A. Plug the valve into

an outlet.

B. Check all interface

cable connections,
connect if needed.

C. Reset the circuit

breaker.

D. Disconnect and

reconnect the valve
power cord from the
electrical outlet.

E. Connect the interface

to the valve using a
″cross-over″ cable or
coupler.

F. Contact your Kohler

Co. Authorized
Service
Representative.

Kohler Co. 9 1143086-2-E

Troubleshooting (cont.)

Troubleshooting Table
Symptoms Probable Cause Recommended Action

2. The interface

power
indicator is lit,
but the system
will not turn
on.

3. The interface

functions
normally but
no water flows
from the
components.

A. Interface cable

connections may
be loose.

B. If the above

recommended
action does not
correct the
symptom, the
interface or valve
requires servicing.

A. Valve outlets may

be blocked.

B. Fittings/Spray

faces may be
blocked.

C. Hot and cold water

supplies are not
turned on.

D. The valve memory

may require
resetting.

E. System error. E. Check the user

F. If none of the

recommended
actions for the
above issues
correct the
symptom, the
valve requires
servicing.

A. Check all interface

cable connections,
connect if needed.

B. Contact your Kohler

Co. Authorized
Service
Representative.

A. Check the valve

outlets for blockage
or debris. Clean the
outlet screens.

B. Clean the spray faces

and any screens in
your fittings.

C. Turn on the water

supply to the valve.

D. Disconnect and

reconnect the valve
power cord from the
electrical outlet.

interface for an error
code. Refer to the
″Error Code
Diagnosis″ section in
the Digital Interface
Homeowners Guide.

F. Contact your Kohler

Co. Authorized
Service
Representative.

1143086-2-E 10 Kohler Co.

Troubleshooting (cont.)

Troubleshooting Table
Symptoms Probable Cause Recommended Action

4. Maximum

blend
temperature
too hot or too
cold.

5. Continuous

flow.

6. Only cold

water flows
from the
outlets.

A. Incorrect maximum

temperature
setting.

B. If the above

recommended
action does not
correct the
symptom, the
interface or valve
requires servicing.

A. System will not

switch off.

A. Hot water supply

is either not turned
on or not
connected to the
valve inlet.

B. Hot water inlet is

blocked.

C. The hot water

supply is
exhausted.

D. If none of the

recommended
actions for the
above issues
correct the
symptom, the
valve requires
servicing.

A. Refer to the

″Temperature – Set
the Maximum″
section in the Digital
Interface
Homeowners Guide.

B. Contact your Kohler

Co. Authorized
Service
Representative.

A. Turn off the water

and power supply
and contact your
Kohler Co.
Authorized Service
Representative.

A. Check if the hot

water supply is
turned on and
connected to the
valve inlet.

B. Check the hot water

inlet screen for
blockage. Clean or
replace the inlet
screen. Refer to the
Valve Homeowners
Guide.

C. Allow time for the

water heater to come
up to temperature.

D. Contact your Kohler

Co. Authorized
Service
Representative.

Kohler Co. 11 1143086-2-E

Troubleshooting (cont.)

Troubleshooting Table
Symptoms Probable Cause Recommended Action

7. Fluctuating or

reduced flow
rate. Valve is
functioning
properly.

8. Blend

temperature
drift or
temperature
cycling.

A. Valve inlets may be

blocked.

B. Fittings/Spray

faces may be
blocked.

C. Water outlet

pressure is low.

D. Fluctuating supply

pressure.

E. Water supply

temperatures are
not within the
recommended
range.

A. Fluctuating water

supply
temperature.

B. Pressure difference

greater than 5 psi
(34.5 kPa) between
the hot and cold
supply lines.

A. Check the valve

inlets for blockage or
debris. Clean the
inlet screens. Refer to
the ″Clean the Inlet
Screens″ section in
the Valve
Homeowners Guide.

B. Clean the spray faces

and any screens in
your fittings.

C. Check that the flow

rate is at or above
the minimum rate
required. Refer to
″Specifications″
section in the Valve
Homeowners Guide.

D. Verify that the

dynamic inlet
pressures are within
specifications. Refer
to ″Specifications″
section in the Valve
Homeowners Guide.

E. Check if inlet water

temperatures are
within the
recommended range.

A. Check the inlet

temperature
differentials and
verify they are
sufficient. Refer to
″Specifications″
section in the Valve
Homeowners Guide.

B. Install pressure

regulators to bring
the supplies within 5
psi (34.5 kPa) of each
other.

1143086-2-E 12 Kohler Co.

Troubleshooting (cont.)

Troubleshooting Table
Symptoms Probable Cause Recommended Action

C. If none of the

recommended
actions for the
above issues

C. Contact your Kohler

Co. Authorized
Service

Representative.
correct the
symptom, the
valve requires
servicing.

9. Water leaking

from the valve.

CAUTION: Risk
of personal injury
or product
damage. Turn off

the main power
and water supply.

A. Connections are

not secure.

A. Check all

connections. Make

adjustments as

needed.

B. Seals are worn or

damaged.

B. Order a seal service

pack and replace all

seals.

C. Internal leak. C. Unit requires

overhaul. Contact

your Kohler Co.

Authorized Service

Representative.

10. Hot water only,

the valve shuts
down.

A. Hot and cold lines

are reversed.

A. Switch hot and cold

water supply

connections. Verify

the hot water supply

is connected to the

″Hot″ inlet and the

cold water supply is

connected to the

″Cold″ inlet.

Kohler Co. 13 1143086-2-E

Guide d’installation

Interface numérique

INSTRUCTIONS IMPORTANTES

AVERTISSEMENT: Lors de l’utilisation de produits
électriques, toujours observer les précautions de base,
notamment:

AVERTISSEMENT: Risque de choc électrique. Raccorder

uniquement à un circuit protégé par un disjoncteur de fuite
de terre (GFCI)*. Une mise à la terre est requise. L’appareil
doit être installé et mis à la terre par un représentant
technique qualifié.

AVERTISSEMENT: Risque de choc électrique. Tout le
câblage électrique doit être réalisé par un électricien qualifié.

AVERTISSEMENT: Risque de choc électrique. Déconnecter
l’alimentation électrique avant d’effectuer un entretien.

AVERTISSEMENT: Risque de blessures ou
d’endommagement du matériel. Lire toutes les instructions

avec attention avant de commencer l’installation.

AVIS: Respecter tous les codes de plomberie, d’électricité et de
construction.

*Hors de l’Amérique du Nord, ce dispositif peut être connu sous le
nom de dispositif à courant résiduel (RCD).

Caractéristiques

Interface

Température ambiante Max 125°F (51,5°C)
Humidité relative maximale 100% avec condensation (surface externe

Longueur de câble de
l’interface utilisateur

Vanne

Température ambiante Plus de 34°F (1°C), Max 104°F (40°C)

Kohler Co. Français-1 1143086-2-E

seulement)
20’ (6,1 m)