Toto CST446 Installation instructions

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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

(888) 295-8134 or (678) 466-1300 when calling from outside of U.S.A.

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

CST446

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

Care and Cleaning...............................................................................................7

Replacing the Fill Valve .......................................................................................8

Adjusting the Water Level...................................................................................8

Servicing Fill Valve ...............................................................................................9

Servicing Flush Valve .........................................................................................10

Warranty..............................................................................................................11

Toilet Bowl Mounting hardware

Template

Manual

Unifit Rough-in Instruction

Rough-in Mounting Hardware

Rough-in

Push Rods

(located on the underside

of the tank lid)

10” adjustable wrench

Carpenters’ level

Hacksaw

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*:

* Actual parts may appear different from drawing according to the model.

Flexible supply hose

Angle stop valve

Wax ring

MATERIALS REQUIRED:

(Not Included)

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

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 protrude less than 3-1/2” (90mm)

from wall

Centerline of

Stop valve

Finished wall

4¾”

(120mm)

Centerline of

Flange

4¾”

(120mm)

3½”(90mm) MAX

“RI”

ENGLISH

Screw

Washer

Nut

Wax seal

INSTALLATION PROCEDURE

1. Open the Unit Rough-In packaging.

Follow the Unit Rough-In

Installation instruction to complete

the rough-in 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

ill.1

ill.2

ill. 3

ENGLISH

6. Install the tank-to-bowl mounting

hardware to the tank (ill. 5).

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.

Make sure that the ll

valve does not turn

and hit the tank while

tightening.

8. Connect the water supply hose (not

provided) to the ll valve (ill. 5).

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.

9. Place the tank-to-bowl gasket onto

the ush tower nut (ill. 7). 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.

INSTALLATION PROCEDURE

⚠CAUTION

Nut

Metal washer

Rubber washer

Bolt

Cap

Side-screw

Cap

Side-screw

ill. 4

5. Install the side screws to the

mounting blocks. Cover the

screw head with the provided

screw caps (ill. 4).

Flush valve nut

Fill valve nut

ill. 6

ill. 5

NOTICE

ENGLISH

10. Pick up the tank and carefully guide

the water supply hose over 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.

11. Using provided tank-tight nuts,

hand tighten the nuts evenly until

tank sets snugly on each of the 3

contact points on the bowl (ill. 8).

Do not overtighten

the mounting bolts.

Overtightening may

break the china and cause

personal injury and/or

property damage.

12. Install the exible water supply

hose to the angle stop (ill. 9). Make

sure that the hose is free of kinks.

⚠CAUTION

INSTALLATION PROCEDURE

Tank-tight nut

50 mm radius minimum Make sure there are no kinks

ill. 9

Tank to Bowl

Gasket

Fill valve nut Flush valve nut

ill. 7

Points of Contac t

ill. 8

ENGLISH

INSTALLATION PROCEDURE

Push buttons

Tank lid

Left Right

Full

Flush

Partial

Flush

13. On the underside of the tank lid,

remove the 2 rods with lock nuts, and

screw them clockwise to the push

button assembly.

Place the lid on top of the tank, making

sure that the full ush push button is on

the left side (ill 10).

14. Adjust the length of the rods. If the

push button rods are too short (see

ill. 11a), the push buttons will not sit

properly and toilet may short ush.

If the push button rods are too long

(see ill. 11b), the push button may

continuously activate the ush valve.

Correct with the following steps:

1. Loosen the lock nuts counter-

clockwise.

2. Turn the rods clockwise to shorten,

counter-clockwise to lengthen (each

full turn is 1mm).

3. Place the lid on the tank to check the

adjustment.

4. When the adjustment is completed,

tighten the lock nut to secure.

15. Turn on the water supply at the angle

stop. Check ALL connections for leaks.

Fix as needed.

16. The toilet seat is installed with the seat

top mounting hardware. Refer to the

seat installation instruction.

ill. 10

Flush valve

Full ush Partial ush

Left Right

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 dissolve the buildup.

Clip

Locknut

Clockwise/

counter-clockwise

Push button

assembly

If the rod(s) is too

short, the buttons

are lowered

Flush valve

ill. 11a

ill. 11b If the rod(s) is too

long, the buttons

are pushed up

and water may

continue to ow

to toilet bowl.

Tank Lid

ENGLISH

REPLACING THE FILL VALVE

Flexible hose

Coupling nut

Nut

Washer

Cone seal

1. Shut off the water supply. Flush the toilet

and remove any remaining water from the

tank. Reverse the tank installation instruc-

tions to remove it from the bowl. Remove

the old ll valve.

2. Install new ll valve by sliding the thread-

ed 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.

Do not over-tighten.

4. Connect the water supply (see Ill. 1). Pipe

dope is not recommended. Attach the

rell tube to the valve and clip the other

end to the overow pipe.

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.

Ill. 1

ADJUSTING THE WATER LEVEL

⚠CAUTION

water level adjuster

Ill. 1

ENGLISH

1. Snap off the top cover by pulling from under the tab (see ill. 1).

2. Pinch the tabs of the lever arm to allow its removal (see ill. 2).

3. Snap off the adjustable rod from the bracket (1) allowing the unit to

slide to the bottom and remove the retainer tab by pulling as the arrow

indicates (3) (see ill. 3).

4. Grab hold of the valve unit, twist 1/4 turn counterclockwise and pull the

unit out (see ill. 4).

5. Unscrew nut of the diaphragm housing (see ill. 5).

6. Remove the diaphragm from its housing by carefully pulling the edge

of the diaphragm (see ill. 6). Note the position of the diaphragm while

removing.

7. Remove the strainer from the tube with needle nose pliers (see 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. 1 Ill. 2 Ill. 3

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.

Ill. 7

ENGLISH

SERVICING THE FLUSH VALVE

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 valve for reassembly.

4. Turn the upper half of ush valve counter-clockwise and pull it up to

remove it (see 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 valve (see Ill. 3).

7. Install the ush valve back on the base.

8. Rotate the ush valve so that the partial ush button is on the right and

the full ush button is on the left.

9. Carefully, install the tank lid back on the tank.

10. Flush the toilet several times using each push button to verify proper

operation. Check for leakage.

Ill. 2 Ill. 3

Ill. 1

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