Toto TMT1NNC User manual

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.
0GU3001
Rev Date: 10/10
Installation Manual
Manual de Instrucciones
Manuel D’Installation
Toilet Flushometer Valves TMT1NNC, TMT1LN
Toilet Flushometer Valve TMW1NNC
Urinal Flushometer Valves TMU1NNC, TMU1LN

2
BEFORE INSTALLATION
Prior to installing the Piston Flushometer Valve, install the items listed below:
• Closet or Urinal Fixture
• Drain Line
• Water Supply Line
The supply piping to these devices shall be securely anchored to the building structure to prevent the installed device from
unnecessary movement when operated by the user. Care shall be exercised when installing the device to prevent marring the
exposed significant surface.
IMPORTANT:
• ALL PLUMBING IS TO BE INSTALLED IN ACCORDANCE WITH APPLICABLE CODES AND REGULATIONS.
• WATER SUPPLY LINES MUST BE SIZED TO PROVIDE AN ADEQUATE VOLUME OF WATER FOR EACH FIXTURE.
• FLUSH ALL WATERLINES PRIOR TO OPERATION.
The Piston Valve is designed to operate with water pressure as low as 10psi (69kPa). HOWEVER THE MINIMUM PRESSURE
REQUIRED TO OPERATE THE VALVE IS DETERMINED BY THE TYPE OF FIXTURE SELECTED. Consult the fixture manufac-
turer for pressure requirements. Pressure in excess of 100psi (690kPa) is not suitable for flushing any plumbing fixture. Most
codes mandate a maximum of 80psi; Please check local code requirements.Protect the chrome or special finish of this
flushometer. DO NOT USE TOOTHED TOOLS TO INSTALL OR SERVICE THE VALVE.
INSTALLATION PROCEDURE
1) Install the stop valve assembly A and wall flange. Refer
to the rough in dimension shown. Thread sealing com-
pounds should be used on the male NPT theads only.
For sweat soldering, refer to the instructions in the sweat
solder kit.
MIN 4-1/4” (106mm)
MAX 5-1/4” (131mm)
2) Prior to inserting the flushometer valve tailpiece B into
the stop valve, be certain that the O-ring seal C is located
in the O-ring seal groove at the end of the tailpiece, and
that the lock nut D and locking snap ring E are located as
shown. Care should be taken not to damage the O-ring
when inserting the tailpiece into the stop valve. If lubri-
cation is needed, wetting the O-ring with water will be
sufficient.
3) Insert the flushometer valve tailpiece B into the stop
valve A and hand-tighten the lock nut D to the stop valve.
Plumb the entire unit.
4) Determine the length of the vacuum breaker tube F re-
quired to join the flushometer valve and fixture spud. Cut
the vacuum breaker tube, if required, to this length. As-
semble the vacuum breaker tube assembly and spud nut
assembly to the flushometer valve and fixture spud.
5) Hand tighten the spud nut and the 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.

3
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 adjust-
ment screw located at the center of the stop valve cap G,
behind the adjustment screw cover if already installed.
Stop valve adjustments can only be made by using the
adjustment screw. If for any reason, it becomes necessary
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 following 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.
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.
7) 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 sev-
eral times. Gradually adjust the stop valve down, using
the adjustment screw, so that the rate of water 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
actuated several times in succession.
8) The stop cap screw cover should be replaced and tightly
secured after final adjustments have been made.
SPECIFICATIONS
Flush volume:
TMT1NNC - 6.0 LPF (1.6 GPF)
TMW1NNC - 13.3 LPF (3.5 GPF)
TMU1NNC - 3.8 LPF (1.0 GPF)
Protect the chrome or special finish of the flushometer. DO NOT USE TOOTHED TOOLS TO INSTALL OR SERVICE THE
VALVE.
A non-hold open feature is standard on these valves

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SWEAT SOLDER ADAPTER INSTALLATION INSTRUCTIONS
1) Measure the distance from finished wall
to center line of the fixture spud; cut the
water supply pipe 1-1/4” shorter than this
measurement. Chamfer O.D. and I.D.
C
FINISHED WALL
WATER SUPPLY PIPE
OF FIXTURE
SPUD
11/4"
2) Slide the threaded adapter onto the supply
pipe until shoulder stops on the end of the
pipe. Then sweat-solder the adapter to the
water supply pipe.
3) Measure from the finished wall to the first
thread of adapter for length of the chrome
tube. Cut the chrome tube at this length
x”.
SWEAT ADAPTER
'x'
4) Slide the wall escutcheon over the chrome tube and slide both
the chrome tube and the wall escutcheon over the supply pipe,
pushing the wall escutcheon all the way to the wall.
5) Screw the control stop onto the water supply pipe adapter.
CHROME TUBE
WALL ESCUTCHEON
CONTROL
STOP
FINISHED WALL
TROUBLESHOOTING
PROBLEM CAUSE SOLUTION
Valve will not operate. Water supply is shut off. Turn on the water supply and open control stop.
Valve does not shut off. Dirt in piston bypass hole. Clean bypass groove by flushing away debris.
Dirt or debris at valve seat or sealing area. Clean valve seat and clean piston. Replace the seat seal if needed.
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. Adjust control stop by turning the screw clockwise.
Piston stroke is too long. Turn piston adjustment screw clockwise.
Lever assembly leaks. Lever nut is loose. Tighten nut.
Fiber washer is damaged. Replace washer.
U-packing is dirty. Disassemble lever & clean u-packing.
TOTO® warrants its products to be made of first class materials, free from defects in material or workmanship, under normal use, and to per-
form 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 al-
lowed for labor, transportation, or other incidental costs. This warranty extends only to persons or organizations who purchase TOTO’s prod-
ucts 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 RESPON-
SIBLE FOR ANY CONSEQUENTIAL DAMAGES OF ANY MEASURE WHATSOEVER.
LMITED WARRANTY
Bypass Groove