Kohler K-669 Assembly instructions

Homeowners Guide
Thermostatic Mixing Valve
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-669, K-679 K-670, K-680
1041158-5-B

IMPORTANT INSTRUCTIONS
READ AND SAVE FOR THE
CONSUMER
WARNING: Risk of scalding or other severe injury.
CAUTION: Risk of scalding hazard. This device has been
calibrated at the factory to ensure a safe maximum water
temperature. Any variance in settings or water inlet conditions
from those used during factory calibration may raise the
discharge temperature above the safe limit, and may present a
scalding hazard.
•Before completing installation, the installer must set the
maximum water temperature setting of this valve to minimize the
risks associated with scalding hazards according to ASTM F 444.
The installer is responsible for adjusting the maximum water
temperature of this valve according to instructions.
This valve meets or exceeds ANSI A112.18.1 and ASSE 1016.
If you do not understand any of the temperature adjustment
instructions in this document, in the United States please contact our
Customer Service Department at 1-800-4-KOHLER. Outside the U.S.,
please contact your distributor.
IMPORTANT NOTICE: Please fill in the blanks below and on the
valve label. Retain this Homeowners Guide for future reference.
•The valve is calibrated to 104° F (40° C) at the first stop position,
and the maximum temperature limit stop is positioned so the
outlet water temperature does not exceed 120° F (49° C).
•Factory calibrated inlet conditions are:
Hot and cold water pressure = 45 psi (3.2 kg/square cm)
Hot water supply temperature = 145° F (63° C)
Cold water supply temperature = 65° F (18° C)
•If inlet conditions differ from those used during factory
calibration, it may be necessary to re-calibrate the valve after
installation. The installer must check the mixed flow
temperature after installation, and adjust the valve as needed
according to the instructions.
1041158-5-B 2 Kohler Co.

Thank You For Choosing Kohler Company
Thank you for choosing the Bold Look of 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 faucet 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.
NOTICE TO HOMEOWNERS! This device has been preset by
_______________________ of _______________________________ to
ensure a safe maximum temperature. Any change in the setting may
raise the discharge temperature above the limit considered safe, and
lead to scalds.
Date: ______________
Kohler Co. 3 1041158-5-B

Verify the Temperature Settings
CAUTION: Risk of personal injury. The water temperature
should never be set above 120° F (49° C).
NOTE: The thermostatic valve cartridge is calibrated at the factory
for a shower temperature of approximately 104° F (40° C) to 105° F
(41° C) and a maximum hot temperature of 120° F (49° C).
Turn the water on.
Attach a trim handle or plaster guard (found in volume control
valve K-671 or K-681 or transfer valve K-672) onto the valve
spline adapter.
Turn the valve spline adapter fully counterclockwise so the trim
handle or plaster guard can no longer move. The valve spline
adapter is now in the full hot position.
Allow the water to run for several minutes to stabilize the water
supply temperatures.
Position a thermometer in the water stream to check the
temperature of the hot water.
If the water temperature exceeds 120° F (49° C) or is less than
desired, proceed to the ″Hot Temperature Adjustment″section.
Turn the trim handle or plaster guard clockwise until you hear a
click. Do not turn any farther. This is the shower temperature
position.
Valve Spline Adapter
Increase
temperature.
Decrease
temperature.
1041158-5-B 4 Kohler Co.

Verify the Temperature Settings (cont.)
Remove the trim handle or plaster guard from the valve spline
adapter.
Position a thermometer in the water stream to check the shower
temperature.
If the water temperature is less than 104° F (40° C) to 105° F
(41° C) or is more than desired, proceed to the ″Shower
Temperature Adjustment″section.
If both settings are correct, fill out the ″Notice to Homeowners″
section of this Homeowners Guide.
Kohler Co. 5 1041158-5-B

Hot Temperature Adjustment
CAUTION: Risk of product damage. Do not overtighten the
head nut. Excessive torque may damage the head nut.
Turn both integral supply stops outward until they contact the
stop bracket.
Detach the removal clip from the head nut.
Remove the head nut from the assembly by turning the head nut
counterclockwise.
Remove the detent collar with the spring from the cartridge.
Remove the valve spline adapter.
NOTE: The spring on the detent collar may fall off. Reattach the
spring around the detent collar if this occurs.
Turn the valve stem fully counterclockwise.
NOTE: Leave the detent collar off while making adjustments.
Reinstall the head nut to the valve casting. Hand tighten the head
nut until the shoulder of the head nut contacts the lip of the
valve casting.
Turn both integral supply stops inward.
Turn on the water using the volume control valve (not shown).
Allow the water to flow for several minutes to stabilize the water
temperature.
Head Nut
Removal Clip
Removal
Clip Tab
Detent Collar
with Spring
Valve Spline
Adapter
Integral
Supply
Stop
Stop Bracket
Integral Supply Stop
Valve Stem
Adapter Tab
Hot
Tab
1041158-5-B 6 Kohler Co.

Hot Temperature Adjustment (cont.)
Insert a thermometer into the water stream to verify the water
temperature.
Turn the valve stem clockwise until the maximum 120° F (49° C)
temperature is reached.
Reinstall the valve spline adapter with the adapter tab placed
flush against the left side of the hot tab on the cartridge.
Reinstall the valve spline adapter in this position over the valve
stem.
Shut off the volume control.
Turn both integral supply stops outward until they contact the
stop bracket.
Open and close the volume control (not shown) to relieve
pressure that has built up in the valve.
Remove the head nut from the assembly by turning the head nut
counterclockwise.
Reinstall the detent collar. Be sure the spring is resting on top of
the detent collar.
Reinstall the head nut onto the assembly until hand-tight. Do not
overtighten.
Reattach the removal clip to the head nut. The tab on the removal
clip should be facing inward.
Turn both integral supply stops inward.
Verify the temperature. Repeat the above steps if necessary.
Proceed to the ″Shower Temperature Adjustment″section of this
guide.
Kohler Co. 7 1041158-5-B

Shower Temperature Adjustment
NOTE: To ensure the correct shower temperature, first turn the
valve spline adapter to the full hot position then adjust the shower
temperature.
Place the trim handle (not shown) or plaster guard (not shown)
onto the valve spline adapter.
Turn the valve spline adapter fully counterclockwise so the trim
handle or plaster guard can no longer move. The valve spline
adapter is now in the full hot position.
Next, turn the trim handle or plaster guard clockwise until you
hear a click. Do not turn an farther. This is the shower
temperature position.
Remove the trim handle or plaster guard from the valve spline
adapter.
Allow the water to run for a few minutes to stabilize the
temperature.
If the temperature is less than 104° F (40° C):
Pull out the detent collar.
Turn the detent collar counterclockwise.
Verify the temperature.
If the temperature is greater than 105° F (41° C):
Pull out the detent collar.
Detent Collar
Valve Spline Adapter
Increase
temperature.
Decrease
temperature.
1041158-5-B 8 Kohler Co.

Shower Temperature Adjustment (cont.)
Turn the detent collar clockwise.
Verify the temperature.
Repeat the steps above until the desired temperature is achieved.
Troubleshooting Procedures
This troubleshooting guide is for general aid only. For warranty
service, contact your dealer or wholesale distributor.
Symptoms Probable Cause/Recommended
Action
1. Only hot or cold water from
outlet. a. Inlet supplies are reversed. See ″Reversed Inlet Supplies″section
of the Installation Guide.
b. No hot water reaching shower
control.
c. Check filter screens for blockage.
2. Fluctuating or reduced flow rate. Normal function of thermostatic
control when operating conditions
are unsatisfactory.
a. Check filter screens for flow
restriction.
b. Make sure that the minimum
flow rate is sufficient for supply
conditions.
c. Make sure that dynamic inlet
pressures are nominally balanced
and sufficient.
d. Make sure that inlet
temperature differentials are
sufficient.
e. Service stops are not fully
threaded in. Rotate both service
stops until fully threaded.
f. Check thermostatic performance;
renew thermostatic cartridge, if
necessary.
3. No flow from shower control
outlet. a. Check filter screens for blockage. b. Hot or cold supply failure;
thermostat holding correct
shutdown function.
c. Flow control cartridge does not
work. Check and replace if
necessary.
d. Service stops are shut off. Rotate
both counterclockwise.
Kohler Co. 9 1041158-5-B

Troubleshooting Procedures (cont.)
Symptoms Probable Cause/Recommended
Action
4. Blend temperature drift. Indicates operating conditions
changed.
a. Refer to symptom 2 above.
b. Hot supply temperature
fluctuation.
c. Supply pressure fluctuation.
5. Hot water in cold supply or cold
water in hot supply. Indicates crossflow. Replace check valve.
6. Maximum blend temperature
setting too hot or too cold. a. Indicates incorrect maximum temperature setting; refer to the
″Adjust Temperature Settings″
section.
b. As symptom 4 above
c. As symptom 5 above.
7. Water leaking from the valve
body. Seal(s) worn or damaged. a. Obtain service kit and replace
seal(s).
b. If leaking from around the
temperature spindle, replace the
thermostatic cartridge.
8. Flow knob or temperature knob
is stiff to operate. a. Impaired free movement of internal components. Renew the
appropriate cartridge.
b. Supply pressures are too high.
Fit pressure reducing valve.
Lifetime Limited Warranty — USA and Canada
Kohler Co. warrants its faucets manufactured after January 1, 1997, to
be leak and drip free during normal residential use for as long as the
original consumer purchaser owns his/her home. *If the faucet should
leak or drip during normal use, Kohler will, free of charge, mail to the
purchaser the cartridge necessary to put the faucet in good working
condition.
Kohler also warrants all other aspects of the faucet, except gold finish,
to be free of defects in material and workmanship during normal
residential use for as long as the original consumer purchaser owns
his/her own home. If a defect is found in normal residential use,
Kohler Co. will, at its election, repair, provide a replacement part or
product, or make appropriate adjustment. Damage to a product caused
by accident, misuse, or abuse is not covered by this warranty. Proof of
purchase (original sales receipt) must be provided to Kohler with all
1041158-5-B 10 Kohler Co.