®
INSTALLATION INSTRUCTIONS
Toilet Flushometer Valve TMT1HNCR
Toilet Flushometer Valve TMW1HNCR
Toilet Flushometer Valve TMU1HNCR
LIMITED WARRANTY
TOTO warrants its products to be made of first class materials, free from defects in material or workmanship,
under normal use, and to perform the service for which they are intended in a thoroughly reliable and
efficient manner when properly installed and serviced, for a period of three years from the date of purchase.
During this period TOTO will, at its option, repair or replace any part, or parts, which prove to be thus
defective if returned to TOTO, at the customer’s cost, and this shall be the sole remedy available under this
warranty. No claims will be allowed for labor, transportation, or other incidental costs.This warranty extends
only to persons or organizations who purchase TOTO’s products directly from TOTO for the purpose of
resale.
• THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE
HEREOF. IN NO EVENT IS TOTO RESPONSIBLE FOR ANY CONSEQUENTIAL DAMAGES OF ANY
MEASURE WHATSOEVER.
Hand tighten the spud nut and vacuum breaker tube nut to the fixture and flushometer valve. Align and plumb
the valve assembly. Tighten the fixture spud nut, vacuum breaker tube nut, and lock nut with a wrench.
5.
6.
Before the water supply is turned on, be sure all
stop valves to the flush valves are closed off tightly.
The stop valves can be opened and closed by
using the adjustment screw located at the center
of the stop valve cap G, behind the adjustment
screw cover if already installed. Stop valve ad-
justments can only be made by using the adjust-
ment screw. If for any reason, it becomes neces-
sary to remove the stop valve cap G, be certain
that the water is shut off at the main supply valve.
For new installations, we recommend the follow-
ing steps:
Shut off stop valve and remove flushometer cover.
Lift out the piston valve. Install the flushometer
cover and open the stop valve to flush the line of
any debris and sediment.
6a.
7.
After completion, shut off the stop valve, remove
the flushometer cover and reinstall the piston
valve. Reinstall the flushometer cover securely.
Open the stop valve and activate the flushometer
valve.
Flushometer valves are preset for fixture volume
as marked on the valve cartons. The valve does
not require adjustment for variations in water
pressure within its operating range. To set the
flushometer valve for proper operation, open the
stop valve completely by turning the adjustment
screw and flush the Flushometer valve several
times. Gradually adjust the stop valve down, us-
ing the adjustment screw, so that the rate of wa-
ter flow into the fixture is not excessive, yet is
sufficient to adequately evacuate the waste.The
final setting for urinals should be such that the
fixture will not overflow when the valve is actu-
ated several times in succession.
The stop cap screw cover should be replaced
and tightly secured after final adjustments have
been made.
8.
Specifications
Flush volume: TMT1HNCR – 6.0LPF (1.6GPF) TMW1HNCR – 13.3LPF (3.5GPF) TMU1HNCR – 3.8LPF (1.0GPF)
Protect the Chrome or Special finish of the flushometer. DO NOT USE TOOTHED TOOLS TO INSTALL OR SERVICE THE VALVE.
Sweat Solder Adapter Installation Instructions
Step No. 1
Step No. 2
Step No. 3
Slide threaded adapter onto supply pipe
until shoulder stops on end of pipe. Then
sweat-solder the adapter to water supply pipe. chrome tube this length ‘X’.
Measure from finished wall to first thread
of adapter for length of chrome tube. Cut
Measure distance from finished wall to center line of
fixture spud; cut water supply pipe 1-1/4” shorter
than this measurement. Chamfer O.D. and I.D.
OF FIXTURE
SPUD
C
1
1
/ "
4
WATER SUPPLY PIPE
FINISHED WALL
'x'
SWEAT ADAPTER
Step No. 4
Step No. 5
Slide wall escutcheon over chrome
tube and slide both chrome tube and
wall escutcheon over supply pipe
pushing the wall escutcheon all the
way to the wall.
Screw control stop onto water
supply pipe adapter.
CHROME TUBE
CONTROL
STOP
WALL ESCUTCHEON
FINISHED WALL
Troubleshooting Guide
PROBLEM
CAUSE
SOLUTION
Valve will not operate.
Valve doesn’t shut off.
Water supply is shut off.
Dirt in Piston bypass hole.
Turn on water supply and open control stop.
Clean bypass hole (unplug) by inserting a small wire.
Clean valve seat and clean piston.
replace seat seal if needed.
Dirt or debris at valve seat or sealing-area.
Not enough water to fixture.
Wrong flushometer valve unit
installed.
Check fixture requirements.
Install proper flushometer valve unit.
Control stop improperly adjusted.
Adjust control stop
.
Piston is damaged.
Replace Piston.
Piston Stroke is too short.
Turn Piston Adjustment Screw counter-clockwise.
Too much water for fixture;
noisy flush.
Wrong flushometer valve unit
installed.
Check fixture requirements.
Install proper flushometer valve unit.
Control stop improperly adjusted.
Piston Stroke is too long.
Adjust control stop by turning the screw clockwise.
Turn Piston Adjustment Screw clockwise.
Lever assembly leaks.
Lever nut is loose.
Tighten nut.
Fiber washer is damaged.
U-packing is dirty.
Replace washer.
Disassemble lever & clean U-packing.
Bypass Hole
®
U.S, Subsidiary: TOTO U.S.A., Inc. 1155 Southern Road, Morrow, GA 30260
Tel. (800) 877-1541 Fax (770) 961-9646 Printed in the U.S.A. by TOTO LTD. 12/01
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