Installation Manual: CST423SF, CST424SF(G), CST743S, CST744S(G), CST744SL, CST744SF.10, CST754SF(N), CST784SF, MS756204SF
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BEFORE INSTALLATION
Read these instructions thoroughly before beginning work.
Please leave these instructions for customers. These instructions contain mainte-
nance and warranty information.
If necessary, remove the existing toilet.
INSTALLATION PROCEDURE
In order for your new TOTO® toilet to fit correctly, the distance between the
finished wall to the center of the closet flange must be at least 10 to 12 inches. This
measurement is called the Rough-In.
Supply
Valve
Finished Wall
"RI"
C/L
Closet
Flange
1) Clean any debris out of the closet flange and then
install new mounting bolts (not supplied) into the
slots of the closet flange (see Ill. 1). The head of the
bolt should be inserted into the slot with its threads
facing upward.
2) Carefully turn the toilet upside down onto some
padding. Firmly press a new bowl wax ring (not
supplied) onto the circular recess around the toilet
bowl’s horn (see Ill. 2). Turn the toilet upright and
gently lower into position over the closet flange.
With toilet properly aligned, press firmly on both
sides of toilet rim to set the bowl wax ring.
C AUTION: Do not move the bowl after the bowl
wax ring is set. Thread nuts and tighten evenly
until bowl is snug to closet flange. Install the bolt
caps.
C AUTION: Do not over-tighten the nuts as damage
to the china bowl may result.
Ill. 1
IMPORTANT!
Due to the powerful performance of our Cyclone, G-Max, E-Max and Power Gravity
flushing systems, they are not specified 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 fitting. Please contact your builder or contractor prior
to this installation.
Double Combination WYE / 1/8 Bend
YES
Double Sanitary Tee / Sanitary Cross
NO
Installation Procedures (continued)
4) Place the tank upside down onto some
padding. Inspect the smaller fill valve nut
and larger flush valve nut for a secure con-
nection.
Try to tighten the nuts with your hands see
Ill. 3). If loose, tighten the nut hand tight
and an additional 1/4 turn for the smaller fill
valve nut and an additional 1/2 turn for the
larger flush valve nut.
Place the tank-to-bowl gasket onto the
flush valve nut. 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.
5) Lay the tank down on its back. Place a rub-
ber washer onto a brass bolt. Reach inside
the tank and position the bolt through one
of the holes in the bottom of the tank (see
Ill. 4).
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.
6) Pick up the tank and carefully guide the
brass bolts to align the tank with the bowl.
Attach a metal washer and nut to each bolt.
Tighten the nuts finger tight and inspect
that the tank is level (see Ill. 5). Once level,
tighten the bolts equally until the tank
makes THREE POINTS OF CONTACT with
the bowl.
Ill. 3
Fill Valve Nut
Bolt
Ill. 4
Nut
Rubber Washer
Wax Ring
Horn
Ill. 2
N OTE: The toilet bowl has three points of contact, which will actually contact the bottom of the
toilet tank when properly installed. The location of these points can be seen on the bowl at the
tank receiving area. The three points are front left (1), front right (2), and back center (3). Recall
these three points during the Toilet Tank installation.
Three Points of Contact
Bolt Cap
Nut *
Washer *
Base Cap
Bowl Base
1
2
3
Flush Valve
Nut
Metal Washer
1 & 2
1 & 2
3
3
NO
1 & 2 GAP
NOYES
3 GAP
Tank to Bowl Gasket
Ill. 5