Toto CST436 Installation instructions

Warranty Registration and Inquiry
For product warranty registration, TOTO U.S.A. Inc. recommends online warranty registration. Please visit
our web site http://www.totousa.com. If you have questions regarding warranty policy or coverage, please
contact TOTO U.S.A. Inc., Customer Service Department, 1155 Southern Road, Morrow, GA 30260
[phone] or [phone] when calling from outside of U.S.A.
No CEFIONTECT®
With CEFIONTECT®
WHAT IS
CEFIONTECT®?
CEFIONTECT® MAINTENANCE INSTRUCTIONS
CEFIONTECT® glaze is TOTO’s patented super-smooth permanent
glazing that prevents debris from sticking to surfaces.
Toilets and lavatories are made of ceramic – a porous material that allows
mold and particles to stick to the surface creating stains, scaling and
build-up.
CEFIONTECT® glaze, along with regular cleaning, will keep your TOTO
products in pristine condition.
NOTE:
For regular cleaning of your TOTO product with CEFIONTECT®:
• Use a mild dish detergent to clean your lavatory.
• Use a gel-based toilet bowl cleaner.
• Use a soft cloth to clean your lavatory.
• Use a soft-bristled plastic brush to clean your toilet.
• Don’t use cleanser, polishing powders or detergents that
have gritty or coarse particles.
• Don’t use bleach, chemical thinners, or products that include
acid or alkaline detergents in their ingredients.
• Don’t use metal scrub brushes or steel wool.
Following these cleaning instructions will ensure that the CEFIONTECT®
glaze on your product will remain intact, keeping your TOTO product
beautiful for years to come.
Installation and Owner’s Manual
Manual de instrucciones y del propietario
Manuel d’installation et d’utilisation
Dual-ush Toilet
Inodoro de doble descarga
Toilettes à double chasse d’eau
CST436
CST448
* Actual parts may appear different from drawing according to the model.
* El producto real puede variar en apariencia dependiendo del modelo.
* Le produit réel peut varier en apparence en fonction du modèle.

2
ENGLISH
COMMON TOOLS NEEDED
TABLE OF CONTENTS
THANKS FOR CHOOSING TOTO!
The mission of TOTO is to provide the world with healthy, hygienic and more
comfortable lifestyles. We design every product with the balance of form and
function as a guiding principle. Congratulations on your choice.
INCLUDED PARTS
Thanks for Choosing TOTO! ..............................................................................2
Included Parts ......................................................................................................2
Common Tools Needed......................................................................................2
Before Installation................................................................................................3
Installation Procedure...................................................................................... 4-6
Maintenance Instruction......................................................................................7
Care and Cleaning...............................................................................................8
Replacing the Fill Valve .......................................................................................8
Adjusting the Water Level...................................................................................8
Servicing Fill Valve ...............................................................................................9
Servicing Flush Tower........................................................................................10
Warranty..............................................................................................................11
10” adjustable wrench
Carpenters’ level
Tape measure
Hand pliers
Flat head screwdriver
Phillips screwdriver
Pencil
Putty knife
Drill
Drill bits (mounting block)
For wood oor installation:
- ⁄” drill bit
For concrete/tile installation:
- ⁄” drill bit
Check to make sure you have the following parts included in your package*:
Flexible supply hose
Angle stop valve (1/2” compression to 7/8”Ballcock)
Wax ring
Toilet Seat
MATERIALS REQUIRED:
(Not Included)
Toilet Tank
Tank to Bowl
Mounting Hardware
Rough-in
Bowl Mounting
Hardware
Template
Manual
Unifit Rough-in
Instruction
Rough-in
Mounting Hardware
Fill Valve
Cone Washer (1x)
Fill Valve T-Nut (1x)

3
ENGLISH
BEFORE INSTALLATION
Read these instructions thoroughly before beginning work.
Please leave instructions for customers. These instructions contain
maintenance and warranty information.
If necessary, remove the existing toilet and if new construction, purge the
supply line.
Due to the powerful performance of our Tornado, G-Max, E-Max and Power
Gravity ushing systems, they are not specied for back-to-back installations.
The only means of installing these toilets in a back-to-back situation is when
the toilet drain connections incorporate a WYE tting. Please contact your
builder or contractor prior to this installation.
Double Combination WYE / 1/8 Bend
YES Double Sanitary Tee / Sanitary Cross NO
NOTICE
Water supply shut-off valve installation recommendations
Follow these recommendations to ensure an optimal and trouble-free
installation with a neat and professional appearance.
Location
(From oor and left of
center of oor ange)
4-3/4” x 4-3/4” (120mm x 120mm)
Valve type
Angle stop type valve with supply connection
facing upward, inward, or downward
NOTE: Straight stop type valve, or valve with
supply connection on front of angle stop, is not
recommended
Maximum length Angle stop must not protrude more than 3-1/2”
(90mm) from wall
Centerline of
Stop valve
Finished wall
4¾”
(120mm)
Centerline of
Flange
4¾”
(120mm)
3½”(90mm) MAX
“RI”

4
ENGLISH
Screw
Washer
Nut
Wax seal
INSTALLATION PROCEDURE
1. Open the Unit Rough-In packaging.
Follow the Installation instruction to
complete the installation (ill. 1).
2. Place the template into position and
follow its instructions to prepare for
installing the toilet bowl.
Do not move the Unit Rough-
In on the Floor Flange after
wax seal is set. If this notice is
disregarded, discard the wax ring
and replace with new wax ring.
3. Place the toilet bowl over the Unit
Rough-In and the two mounting blocks,
by aligning the bowl outlet with the
Unit Rough-In opening (ill. 2).
4. Align the toilet perpendicular to the
back wall and parallel to side walls; it
should not sit crooked or diagonal (ill. 3).
Mounting block
Unit
Insert the toilet all the way
into position. If this notice is
disregarded, leakage may result.
NOTICE
NOTICE
ill.1
ill.2
ill.3

5
ENGLISH
Flush valve nut
Fill valve nut
Metal Washer
Brass
Nut
Rubber Washer
Bolt
Cut Away View
Make sure that the ll valve does not turn and
hit the tank while tightening.
8. Connect the water supply hose to the ll valve threads as
seen at the bottom of toilet tank (Ill. 7). Tighten this
connection finger tight.
The water supply hose must be connected
to the ll valve BEFORE the tank-to-bowl
installation. TOTO recommends using a
longer exible supply hose.
5. Install the side screws to the mounting blocks.
Cover the screw head with the provided screw
caps (ill. 4).
6. Install the tank-to-bowl mounting hardware to
the tank (ill. 5). Lay the tank down on its back.
Place a rubber washer onto a bolt. Reach
inside the tank and position the bolt through
one of the holes in the bottom of the tank. On
the outside of the tank, place a metal washer
and nut onto the bolt. Hold the bolt centered
in the hole and tighten the nut finger tight. Turn
the nut an additional 1/2 turn with a wrench.
Repeat this process for the remaining hole in
the tank.
Do NOT overtighten hardware,
as it may break the china and
cause personal injury or property
damage.
7. Place the tank upside down onto some
padding. Inspect the smaller ll valve nut and
larger ush valve nut for a secure connection
(ill. 6). Try to tighten the nuts with your hands.
If loose, tighten the nut hand tight and an
additional 1/4 turn for the smaller ll valve nut
and an additional 1/2 turn for the larger ush
tower nut.
Cap
Side-screw
Cap
Side-screw
ill.4
ill.5
ill.6
INSTALLATION PROCEDURE
⚠CAUTION
NOTICE
NOTICE
7/8” Ballcock Thread
HAND TIGHTEN ONLY
Ill. 6
ill.7

6
ENGLISH
9. Place the tank-to-bowl gasket onto the ush
tower nut (ill. 8). While pressing down, spread the
gasket over the nut until the gasket touches the
bottom of the tank. A slight gap between the
tank bottom and the gasket is allowable.
10. Pick up the tank and carefully guide the
water supply hose into the bowl’s ll valve
hole, align the tank-to-bowl gasket over the
inlet of the bowl, and align the tank bolts
over the bolt holes of the bowl. (ill.9)
11. Using provided hand-tight nuts, hand
tighten the nuts evenly until tank sets
snugly on each of the 3 contact points
on the bowl (ill. 10). Do not overtighten.
Overtightening may break the china and
cause personal injury and/or property
damage.
12. Flush the water supply line for a few
seconds to remove any debris that may
enter the new fill valve. (For new home
constructions and/or additions, flush the
water supply line for more than a minute to
help remove any residual PVC adhesives,
solder flux, and/ or pipe sealants that were
used for the new plumbing.)
13. Install the exible water supply hose to the
angle stop (ill. 11). Make sure that the hose
is free of kinks.
14. Carefully place the lid on top of the tank.
NOTE: The water supply pressure should
be 20 to 80 psi static.
15. Flush toilet a few times to check for issues
and leaks. Make sure NO WATER LEAK on
bowl and tank.
CAUTION: Avoid using a wrench to tighten
the connection as you may damage the
plastic threads and/or cause the fill valve to
rotate inside the tank.
INSTALLATION PROCEDURE
1
3
2
Points of Contac t
ill.10
50 mm radius minimum Make sure there are no kinks
ill. 9
ill.11
Tank to Bowl
Gasket
Fill Valve Nut Flush Valve Nut
ill.8
Hand Tight Nut
ill.9
Use of tools prohibited
E-5

7
ENGLISH
Ill.1
MAINTENANCE INSTRUCTIONS
1. Turn off water supply and flush the toilet.
2. Remove the tank lid and place it upside
down on a clean surface. Remove the remain-
ing water from tank with a sponge.
3. Pull the clip on top of trip lever gear box as
shown. (ill. 1)
4. Pull gear box away. (ill. 2)
5. Rotate ush tower until arrow aligns with
overow tube and then pull up to remove.
(ill. 3)
6. Remove the grey rubber seal gasket and
rinse under running water to clean. (ill. 4)
7. Place the gasket back on the flush tower.
8. Align and place the flush tower into housing
and rotate to lock into place.
9. Replace the trip lever gear box and push
down on lever to lock it in place.
10. Carefully install the tank lid back on the tank.
11. Flush the toilet several times making sure the
trip lever operates normally.
12. Check the water level in the tank and inspect
for signs of any leakage.
Replacing the Flush Tower
Ill.2
Ill.4 Rubber
Gasket
ill.1
ill.2
ill.3
ill.4
ArrowArrow
Tube

8
ENGLISH
REPLACING THE FILL VALVE
1. Shut off the water supply. Flush the toilet and
remove any remaining water from the tank. Reverse
the tank installation instructions to remove it from
the bowl. Remove the rell tube from the overow
tube and ll valve. Note the orientation of the ll
valve. Remove the old ll valve.
2. Install new ll valve by sliding the threaded portion
of the shaft through the hole in the bottom of tank.
3. Thread mounting nut onto exposed shaft under the
tank and tighten nut. Check ll valve orientation.
Refer to the water level line stamp inside the tank.
1. The water level adjustment is located in the top
end of the ll valve. Use a athead screwdriver to
make adjustments:
• To raise the water level: turn the screwdriver
clockwise, or towards the ‘+’ indicator.
• To lower the water level: turn the screwdriver
counter-clockwise, or towards the ‘-’
indicator.
2. Flush after each adjustment to check the water
level. When satised with the water level, ush
once more to verify.
Flexible hose
Coupling nut
Nut
Washer
Cone seal
Ill. 1
ADJUSTING THE WATER LEVEL
⚠CAUTION
water level adjuster
Ill. 1
CARE AND CLEANING
DO NOT USE IN-TANK BOWL CLEANERS.
The use of high concentration of chlorine or chlorine-related products can
seriously damage ttings in the tank. This damage can cause leakage and
property damage. TOTO shall not be responsible or liable for any tank tting
failure or damage caused by the use of in-tank bowl cleaners.
NOTICE
Use a detergent or non-abrasive toilet cleaner and a soft bristled
plastic brush to clean your toilet. To remove hard water stains, use
vinegar or lime dissolving cleaner and a non-scratch scour pad made
for porcelain. Allow a little contact time to allow the cleaner to dis-
solve the buildup.
Do not over-tighten.
4. Connect the water supply (Ill. 1). Pipe dope is not recommended. Attach the
rell tube to the ll valve and clip the other end to the overow pipe.
Special
Tool

9
ENGLISH
1
2
1
2
3
1. Snap off the top cover by pulling from under the tab (ill. 1).
2. Pinch the tabs of the lever arm to allow its removal (ill. 2).
3. Snap off the adjustable rod from the bracket allowing the unit to slide to
the bottom and remove the retainer tab by pulling as the arrow indicates
(ill. 3).
4. Grab hold of the valve unit, twist 1/4 turn counterclockwise and pull the
unit out (ill. 4).
5. Unscrew nut of the diaphragm housing (ill. 5).
6. Remove the diaphragm from its housing by carefully pulling the edge
of the diaphragm (ill. 6). Note the position of the diaphragm while
removing.
7. Remove the strainer from the tube with needle nose pliers (ill. 7). Use
twisting motion while pulling to help with removal.
8. Rinse all parts under running water to clear any debris, residues or lms.
Reinstall all parts in reverse order. Turn the water ON and check for leaks
and operation.
Ill. 6
SERVICING THE FILL VALVE
Ill. 4
Ill. 5
NOTE: Due to water conditions in your area, the strainer may require periodic clean-
ing. An indication that the strainer requires service can be seen in a delayed ll cycle,
intermittent ll cycle, or inadequate amount of water ow from the rell tube.
1
2
ill.1
ill.5
ill.2
ill.6
ill.3
ill.7
ill.4

10
ENGLISH
SERVICING THE FLUSH TOWER
1. Turn off water supply and ush the toilet.
2. Remove the tank lid and place it upside down on a clean surface.
3. Note the orientation of the ush tower for reassembly.
4. Rotate the upper half of the ush tower so the arrow points towards
the overow tube and pull it up to remove it (ill. 1)
5. Remove the rubber seal gasket and rinse under running water to clean
(see Ill. 2).
6. Place the gasket back on the ush tower (Ill. 3).
7. Align arrow with the overow tube and install the ush tower back on
the base.
8. Rotate the ush tower to the same orientation (step 3).
9. Carefully, install the tank lid back on the tank.
10. Flush the toilet several times to verify proper operation. Check for
leakage.
ill.1 ill.2 ill.3