Kohler K-8423A-0 Assembly instructions

Homeowners Guide
1274372-A05-C May 2018
Veil Intelligent Toilet
Wall Hung: K-5402A-0
Wall Faced: K-8423A-0
Veil Wall Hung Veil Wall Faced

Kohler Co.21274372-A05-C May 2018
CAUTIONS AND WARNINGS
SAVE THESE INSTRUCTIONS
WARNING – To reduce the risk of low-grade burns electric shock, fire or injury to persons:
Close supervision is necessary when this appliance is used by or near the very young, the elderly, or invalids.
Children should not be permitted to use to touch this appliance. Do not leave children unattended in any room
where this product is installed.
Adjust the temperature, spray temperature and air temperature of the toilet seat to proper dials for the elderly, those
who are incapacitated, or persons with sensitive skin.
Use this appliance only for its intended purpose as described in the manual. Do not use
attachments not recommended by Kohler Co.
To prevent product from damage, do not lean on cover when using this appliance.
Never operate this appliance if it is not working properly or if it has been dropped into water.
Install this product properly by following the installation procedure.
DANGER – To reduce the risk of electric shock
WARNING: Risk of electric shock, fire, or personal injury. This product must be grounded. Connect only to a dedicated
220V-240V~, 50/60Hz,10A or higher circuit protected by a minimum 10A Ground-Fault Circuit Interrupter (GFCI) or
Earth-Leakage Circuit-Breaker (ELCB). Require 1mm - 2.5mm hard cord as power input, flexible cord is not allowed.
2 2
WARNING: Risk of electric shock or product damage. Do not immerse product within water.
IMPORTANT! Risk of product damage. Do not install seat in a location where water might be splashed on the product.
IMPORTANT! Risk of product damage. Do not install this seat in a location exposed to excessive moisture
where condensation might form on the product surface. Provide adequate ventilation to avoid damage to
the electronic components due to high humidity levels.
IMPORTANT! Risk of product or property damage. Pushing or pulling on the water connection may cause water leakage.
IMPORTANT! Risk of product damage. Do not apply excessive force to the spray wands. Product may break.
IMPORTANT! Risk of product damage. In areas where water may freeze in the pipes, make arrangements to keep
the pipes warm. Any water remaining in the seat may freeze during the winter, allow the unit to warm to room
temperature before reinstalling or using.
IMPORTANT! Risk of product damage. Do not supply electrical power to the unit until the plumbing installation
work has been completed; it could cause product to malfunction.
NOTE: The thermal protectors may trip during storage or transportation in warm weather causing the unit not to operate.
Allow the unit to cool to room temperature before installation or operation.
When using electrical products, especially when children are present, basic safety precautions should always be
followed, including the following:
Do not place or store this appliance where it can fall or be pulled into a bath or sink.
Do not place in or drop into water or other liquid.
Do not reach for a product that has fallen into water. Turn off the power.

Kohler Co.31274372-A05-C May 2018
CAUTIONS AND WARNINGS (cont.)
Only authorized persons may install or repair the unit. Do not attempt to repair this appliance yourself; doing
so could void the warranty.
Keep the cord away from heated surfaces.
Never drop or insert any objects into hose.
Do not use outdoors or where aerosol spray product is being used or where oxygen is administrated.
Always follow the grounding instructions in this manual before plugging in the unit.
Keep the cord away from splash water.
Avoid low-grade burn from exposed skin contact heating seat for a long time.
Only authorized persons from manufacture, maintenance or similar departments may repair or replace UV
sterilization device.
In case the power line is damaged; to avoid danger, product should be replaced by the manufacturer or
professionals from its maintenance department or similar departments, to avoid the occurrence of danger.
Please use the water supply hose assemblies and tee valve components accompanying the new product.
The old hose assemblies and tee valve components shall not be used again.
Never let children play with this appliance.

Kohler Co.41274372-A05-C May 2018
SPECIFICATION
Water consumption 4.5L/3L
Min water supply condition (recommended) 70kPa (dynamic)
Max water supply condition 500kPa (static)
Rated voltage 220-240V~, 50/60Hz
Rated power 1100W
Max instant power 1600W
Product size 675mmX438mmX533mm (height: from floor to the top of
the product.).
Product weight (excluding concealed water tank) Veil Wall hung About 44 kg ,Veil Wall faced About 48.5 kg
Ambient environment
1-40℃
Rear wash About 0.
35 -0. 68 L/min
Spiral wash About 0.
26 -0. 68 L/min
Front wash About 0.
35 -0. 68 L/min
Spray water temp adjustment
Spray duration (Max.) 300s
Wand quantity 1
Wand position adjustment 5 dials
Pulsate cleaning ON/OFF
Cleaning
Oscillation cleaning ON/OFF
Thermal protection Temp fuse, overheat breaker
Back-flow prevention Check valve
Thermal Temp adjustment
OFF, 1-5 dials (ambient temp 31-39℃)
Safety device Temp fuse, overheat breaker
Cover Auto OPEN/CLOSE, slow falling, remote OPEN/CLOSE
Seat Slow falling, remote OPEN/CLOSE
Comfort
Dryer Temp adjustment
OFF, 1-5 dials (ambient temp 38-52℃)
Safety devices Temp fuse, overheat breaker
Deodorize Air flow rate 0.
11 m3/min
Wand auto clean Yes
Anti-microbial material Cover and Seat
Sanitary
E-water sterilization Yes
UV light sterilization Yes
Side panel 6 function keys
Seated inspection Capacitor detection
Night light 2 blue LED light
Auto Lid OPEN/CLOSE Microwave detection
Manual flush Able to operate when power is off
In-wall tank dimension (L*W*D) 1190mmX478mmX88mm
Water flow
(under
0.2Mpa
pressure)
Safety
device
Other
functions
OFF, 1-5 dials (ambient temp 31-39℃)
Remote controller Function setting refer to page 6~7

Toilet Schematic
Kohler Co.51274372-A05-C May 2018
SPECIFICATION (cont.)
Thank You For Choosing Kohler Company
Thank you for choosing Kohler. Kohler craftsmanship offers you a rare combination of proven performance and graceful
sophistication that will satisfy you for years to come. The dependability and beauty of your Kohler product will surpass your
highest expectations. We’re very proud of our products here at Kohler and we know you will be too.
Please take a few minutes to study this Homeowners Guide. Pay special attention to the care and cleaning instructions.
All information in this manual is based upon the latest product information available at the time of publication. At Kohler,
we constantly strive to improve the quality of our products. We reserve the right to make changes in product
characteristics, packaging, or availability at any time without notice.
Concealed water tank driving method Manual + Auto
Flush control board color Soft frost
Flush control board LED light color Blue
Concealed water tank water inlet connector spec G 1/2''
Bearing capability Max. 400kg
Adjustable wall thickness 11-60mm
Flush control board
Buffer pad x 4
Nozzle
Seated detection zone
Cover (antibacterial)
Seat (antibacterial)
Flush control board dimension (L*W) 215mmX150mm

Kohler Co.61274372-A05-C May 2018
REMOTE GUIDE
Warning: To prevent it from falling, please remove remote from docking station before pressing the ON button.
A – Activate toilet
Press this button to activate toilet by remote. Perform ON/OFF screen switch from this button after activation.
If it is not connected to toilet after activation, the 3rd row icons will flash; icons stop flashing after successful connection.
Enter activation mode.
B – Lid OPEN/CLOSE
Press this button to perform cover ON/OFF action under unseated status.
C - Ring OPEN/CLOSE
Press this button to perform seat ON/OFF action under unseated status.
D – Flush ECO
Press this button to perform ECO (half) flush operation.
E – Flush Full
Press this button to perform full flush operation.
F – Seat Temp
Press this button to adjust seat temperature, when 5 blue dots aren’t displayed this indicates seat heating function is OFF.
G – Front Wash
Press this button to enter front wash when seated. This function will automatically stop after about 5 minutes or will turn
off immediately upon pressing the OFF button.
H – Stop
•Press this button to stop front wash, rear wash, dryer and deodorizer, manual wand clean and UV etc. functions.
•Pressing and holding this button will turn off remote.
I – Rear Wash
Press this button to enter rear wash when seated. This function will automatically stop after about 5 minutes or will turn
off immediately upon pressing the OFF button.
J – Water temp
Press this button to adjust water temp dial when front wash or rear wash is activated.
K – Massage
Press this button to enter oscillate when front wash or rear wash is activated; press this button again to enter pulsate;
press this button a 3rd time to perform oscillate/pulsate simultaneously; press this button a 4th time to exit this mode
(left side icon LED on for corresponding functions).
L – Spiral Wash
Press this button to enter spiral wash during rear wash - spiral icon will blink. Press this button again to exit spiral wash (or
press “STOP” button to turn off) - spiral icon will stop blinking.
UV
A
B
G
H
DC
I
J
F
N
O
E
P
M
L
K
Cover
Stop
Water temp Messagep Spiral Wand Pressure
Front Rear Dryer Clean
Seat Flush-eco Flush-full Seat temp

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Press this button to adjust wand position.
N – Dryer
Press this button once to activate dryer function after seating; press this button again to adjust dryer dials. Function will
O – UV Sterilization
Press this button to enter UV sterilization function under unseated status. Icon will blink.
P – Water Pressure
Press this button to adjust water pressure dials when front wash or rear wash is activated.
Low-Voltage Warning
Note: Please charge immediately after voltage warning.
•When button blinks, this indicates remote internal battery will be exhausted, the remote requires charging.
Pairing
Note: Pairing process shall only be performed when unseated.
•Press remote top ON button to activate toilet when under normal powered on status.
•Hold remote dryer button, after bottom row of icons quick blinking, toilet operation starts.
•Hold toilet button and button on toilet side panel, release button when heard one short beep.
•When the bottom row of icons on remote stop blinking, this indicates successful pairing.
Remote to Toilet Communication
Stop Function
•Whenever pressing and holding button, remote shall enter stop mode.
Remote Setting Guide
•When remote moves outside of detection area, bottom row of icons on remote will auto flash (indicating searching toilet
signal). When moved back into toilet detection area, if toilet is powered on and under normal operation, signal will be
automatically reconnected, and icon will stop blinking after successful connection.
M – Wand Move
stop automatically after about 4 minutes or can be turned off immediately by pressing the OFF button.
UV
B
G
H
DC
I
J
F
N
O
E
P
M
L
K
Cover
Stop
Water temp Messagep Spiral Wand Pressure
Front Rear Dryer Clean
Seat Flush-eco Flush-full Seat temp

Kohler Co.81274372-A05-C May 2018
On the side of toilet, press and hold the button until you hear one short beep. Night light shall blink 3 times
1. Night light quick blink once is close distance (short beep)
2. Night light quick blink twice is middle distance (short beep)
3. Night light quick blink three times is far distance (short beep)
4. Night light slow blink once to turn off auto cover open function (long beep).
Night light slow blink once indicate deodorizer functions is OFF (long beep)
–
•Press and hold this button to set auto flush function ON/OFF status.
Night light quick blink once to activate auto flush function (short beep)
Ni t light slow blink once to deactivate auto flush function (longh g beep)
–
•
•
Press and hold this button to set energy saving function ON/OFF status.
1. Night light quick blink once to activate energy saving function (short beep)
2. Night light slow blink once to deactivate energy saving function (long beep).
–
Press and hold this button to set auto sterilization function ON/OFF status.
1. Night light quick blink once to activate auto sterilization function (short beep)
2. Night light slow blink once to deactivate auto sterilization function (long beep)
–
•Press and hold manual clean wand function under unseated status to extend wand to perform manual clean on nozzle.
Press and hold this button again or press STOP button to deactivate this function.
Remote Battery Usage and Exchange
•Remote docking station uses 4x AA alkaline batteries.
•When battery is low, red LED blinking on docking station indicates
•To remove docking station from wall bracket:
1) Lift dock upwards 2) Shift dock sideways 3) Remove dock
user is required to change battery.
•
•
•
•
•
Red light blink
Others
1. Batteries +/- poles must be oriented
as shown in diagram on the remote.
2.
3. Please use alkaline batteries.
simultaneously. Release button, then change settings according to below B/C/E/F/O.
–
Press and hold this button to set auto cover detection distance
–
Press and hold this button to set deodorizer function ON/OFF status
Do not place remote in water or in a location where water may be splashed on the remote.
Do not place remote near a heater, dryer or any appliance that may cause interference to the normal operation of remote.
Place remote back on docking station after each use.
Avoid dropping or rough handling of the remote.
Guarding function: the remote can be locked with docking station. Refer to the instruction manual for this specific method.
Night light quick blink once indicate deodorizer functions is ON (short beep)
•
•
1.
2.
1.
2.
Do not mix new and old batteries.

Kohler Co.91274372-A05-C May 2018
Preparation Before Initial Use
Connect to power supply
Power switch ON
(indicating LED ON)
Confirm power switch is ON and inlet valve is OPEN by opening side panel.
Confirm no obstruction in front of the product.
When power is ON, wait until toilet completes self checking. It is normal to hear motor rotation and water flow sounds
as well as seeing the night light blinking during this process. When night light stops blinking, self-checking procedure
is complete.
Default status settings for initial use:
Front wash:
Water temp: mid
Water flow: mid
Wash position: 3rd dial
Rear wash:
Water temp: mid
Water flow: mid
Washing position: 3rd dial
Spiral：
Water temp: mid
Water flow: mid
Washing position: 3rd dial
Seat temp: mid
Wind temp: mid
Night light: ON
Energy saving: OFF
Auto cover swing function: ON; distance: mid Auto
flush function: ON
Auto UV function: ON
E-water function: ON
Deodorizing: ON
Confirm "remote" battery is installed correctly.
Angle valve ON
Connect to water inlet valve

Kohler Co.101274372-A05-C May 2018
Cover/Seat OPEN/CLOSE Function
A) Cover OPEN/CLOSE
Auto cover OPEN/CLOSE
Cover automatically opens when user enters detection zone when cover is CLOSED.
Cover automatically closes after about 2 minutes when customer moves out from detection zone when cover is OPEN.
Manual Cover OPEN/CLOSE
OPEN/CLOSE cover by remote
B) Seat OPEN/CLOSE
OPEN/CLOSE seat by remote
Press cover OPEN/CLOSE button on remote when unseated, and cover will perform corresponding OPEN/CLOSE function.
(For details refer to remote button sketch). Invalid operation when pressing button on remote under seated status.
Cover can be OPEN/CLOSED manually. When user opens/closes cover
normally, cover shall automatically open/close based on the movement
trend. Do not continue to apply force to cover. Cover shall automatically
stop when meeting with an obstruction during movement.
Note: 1. When user enters detection zone slowly, cover OPEN/CLOSE
distance might be shorter. Please use remote or manual cover
OPEN/CLOSE if still no response.
2. Auto cover OPEN/CLOSE function shall only be valid when
remote cover OPEN/CLOSE setting” is “ON”.
3. Do not set any obstruction 40cm in front of toilet front end; cover
might auto OPEN if there are obstructions.
Press seat OPEN/CLOSE button on remote when unseated, and seat will perform corresponding OPEN/CLOSE function.
(For details refer to remote button sketch). Invalid operation when pressing button on remote under seated status.