Toto Automatic Toilet Urinal Flush Valve Tet2Ans 31 Users Manual

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4-3/4 1/2"

(120 13mm) 3-3/4"(95mm)

(For Max.1" wall)

*16"(406mm)

1" NPT

1-1/2" O.D.

4-3/4 1/2"

(120 13mm) 3-3/4"(95mm)

(For Max.1" wall)

*16"(406mm)

3/4" NPT

INSTALLATION INSTRUCTION FOR AUTOMATIC TOILET/URINAL FLUSH VALVE

Model Variation

Exploded View

Toilet Flush Valve

For TET2ANS-32

Water Supply Top Spud

AC

DC

TET2ANS-32

TET2DNS-32

TET2ANS-33

TET2DNS-33

TET2ANS-31

TET2DNS-31

Back Spud

Floor Back Spud

Wall

Urinal Flush Valve

Specification

Installation Precautions

1. Prior to Installation

Prior to Installing your TOTO automatic flush valve,

install the items listed bellow:

· Closet fixture/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.

2. 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 minimum pressure required to the valve is

determined by the type of fixture selected. Consult

fixture manufacturer for pressure requirement.

Do not use toothed tools to install or service the valve.

3. Main dimensions of the piping

*check local codes

Model

Number

Power

supply

TET2ANS

-32,33,31

Dimensions

(cover) 12-5/8"(H) x 14-3/16"(W)

(320mm(H) x 360mm(W))

Detection

range Within 31-1/2"(800mm)

from the front of the flush valve

Detection

time 6 seconds or more

Ambient

temperature

32-104˚F(0-40˚C)

(water temperature: 34-104˚F(1-40˚C))

Connection

of the water

supply pipe

1"NPT 3/4"NPT

Supply

water

Pressure

Minimum required water pressure: 10 PSI (70kPa)

(flowing)

Maximum water pressure: 125PSI (862kPa)

Shutoff

pressure 7 PSI (48kPa)

Discharge

quantity per

flush at 28 PSI

(196kPa)

(Factory set)

Approx. 1.6 gallon

(6L)

Approx.0.5 ~ 1.0gallon

(1.9 ~ 3.8L)

(Fuzzy logic adjusted

flush volume)

10V DC

Supplied

by AC

Adapter

TET2DNS

-32,33,31

Alkaline

Type AA

Batteries

1.5V x 4pcs.

TEU2ANS

-11,21

10V DC

Supplied

by AC

Adapter

TEU2DNS

-11,21

Alkaline

Type AA

Batteries

1.5V x 4pcs.

For TEU2DNS-11

For TET2ANS-32

*check local codes

For TEU2DNS-11

4. Use care not to damage the surface of the infrared

sensor.

5. For Toilet Flush Valve

The toilet sensor valve may not function if toilet seat

and/or lid cover are left upright as it may block the

sensor.

6. For Urinal Flush Valve

The automatic flush valve is designed to be used with a

washout urinal for optimum performance. However, a

siphon jet urinal may also be substitutional. Blowout

urinals are not recommended.

7. The detection range of the infrared sensor is shown in

the figure below.

Do not install a handrail or any other object within the

detection zone of the sensor, as object blocking the

sensor may cause the valve to malfunction.

Additionally, to avoid the possibility of valve malfunction,

do not install the flush valve in a location where the

sensor faces a stainless wall, other highly reflective

surface or another infrared sensor.

Refer to local codes for special requirements.

Note

Detection zone

The detection zone is self-adjusting and is equipped with a

3-second flush delay after removal from the detection zone.

(No flush delay for Urinal flush valve)

The detection zone may differ according to color of user’s

clothes.

When a user wears black clothes, the detection zone may

become smaller and the valve may not flush.

“AVOID”

DO NOT place the Infrared

sensor in front of a

stainless steel wall or other

highly reflective surface.

Stainless steel wall or other

highly reflective surface.

Infrared sensor of the

another automatic

flush valve.

Infrared sensor of the

automatic flush valve.

Max.19-11/16"

(Max.500 mm)

Max.31-1/2"

(Max.800 mm)

15

Item Figure Description Q’ty

1

DVacuum

Breaker tube 1

EControl stop 1

FConnection

wire 2

GTool

(Allen wrench) 1

HAlkaline Type

AA Battery 4

INotice Label 1

JOwner’s

manual 1

K

Installation

Instruction

(this manual) 1

LFlush pipe 1

CBox

Only for toilet flush valve

Installation

1. Required tools

Adjustable wrench, Phillips and slotted screwdrivers,

wire stripper and crimping pliers.

2. Inspection

Unpack the flush valve and carefully make sure the

cover, main unit and all other parts are included and

intact before starting installation of the product.

Item Figure Description Q’ty

A

Main body

(with a set of

valve) 1

Only for toilet flush valve

B

Front cover

(with an

infrared

sensor and

washer &

screw)

1

Manual flush button

(Only for toilet flush valve)

Installation Procedure

WARNING: To minimize the risk of electrical shock and

fire hazard, be sure to turn off and lock out

breaker for power line before starting the

installation.

Slide the stopper up and remove the bracket from the

button. ( A)

Reinstall the bracket to the opposite direction shown in the

figure below. ( B)

Step 1

*For the Left water supply of Toilet flush valve

Original

for the right water supply for the left water supply

Toilet top spud

(2-3/16"(56mm)Dia. hole)

Box fixing frame

Urinal Back spud

(1-5/16"(33mm)Dia. hole)

Location of the Left water

supply pipe

1"NPT for Toilet

3/4" for Urinal

Location of the Right water

supply pipe

1"NPT for Toilet

3/4" for Urinal

Toilet Back spud

(2-3/16"(55mm)Dia. hole)

Adapter

Water

supply pipe

1-9/16"

(40mm)

13-1/2"

(343mm)

11-15/16"

(303mm)

16"

(406mm)

11"

(279mm)

4-3/4"

(120mm) 4-3/4"

(120mm)

DC Type Go to Step 4

Step 2

Install the optional transformer Model (THU701TR,

INPUT:120VAC,60Hz, OUTPUT:10VDC,1.95A or

THU700TR, INPUT:24VAC,60Hz, OUTPUT:10VDC,1.95A)

according the instructions given later in the “Installation of

the Transformer” section of this manual, mount the

junction box on a pillar or the like, and guide the two lead

wires from the secondary side (10VDC) of the transformer

to the junction box. Also guide the lead wires for multiple

junction boxes.

For AC Type

To junction box

Conduit tube

Conduit tube

Junction box

From the secondary side

of the transformer

03666 To be continued on the back

Water Supply Back Spud

AC

DC

TEU2ANS-11

TEU2DNS-11

TEU2ANS-21

TEU2DNS-21

Flush pipe 3/4" O.D 1-1/4" O.D

AC Type

Only for toilet flush valve

Battery case

DC Type

AC Type

DC Type

DC Type

Toilet Flush Valve

TET2ANS-32

TET2DNS-32

TET2ANS-33

TET2DNS-33

TET2ANS-31

TET2DNS-31

TEU2ANS-21

TEU2DNS-21

TEU2DNS-11

TEU2ANS-11

A B

Stopper

Button

Bracket Bracket

Determine the installation of the box fixing frame based on

the toilet/urinal position. Then determine the location of

the water supply pipe and attach the control stop to the

pipe. Thereafter bore a flush pipe guide hole in the wall.

Slide a thread solder adapter on the water supply pipe if

applicable.

Attach the control stop before installing the box fixing frame.

Note

Figure

Figure

“AVOID”

DO NOT place the Infrared

sensor of one urinal so that

it is in line with the sensor

of another automatic flush

valve sensor.

Infrared sensor of the

automatic flush valve.

Step 3

Join one lead wire, one supplied wire to flush valve and

one wire for another junction box using a wire nut. Join

the other sets of wires using another wire nut.

Fasten the connection wire to the cover of the junction

box.

To junction box

Wire nut

Supplied

connection wire

Fasten the connection wire

To flush valve

sensor

For AC Type

Step 4

Fasten the box to the box fixing frame with four screws (To

be prepare on the site) after adjusting it. ( A)

Secure the box with four screws attached to adjustable

plate. ( B)

Fasten the connection wire at the position of the mark

colored red with the clamp. ( C)

Adjustable

plate

Clamp

Adjustable hole

A

C

B

Box

Step 5

Pass the flush pipe and the vacuum breaker through the

hole bored in Step 1 and then mount them on the bowl.

Wall surface

Bowl

Top spud

1-1/2"

6 6-1/2"

(152 165mm)

3-3/4"

(95mm)

2-1/4" 2-3/4"

(57 70mm)

5"

(127mm)

Wall surface

Back spud

Wall mount

Bowl

3-3/4"

(95mm)

1-1/2"

3"

(76mm)

Step 6

Make sure that the O-ring fits in the groove of the

connecting pipe.

O-ringSnap ring

Step 7

Insert the end of the stainless cable for manual flushing

into the hinge hole. ( A)

Slide the cable casing into the opening of the bracket. ( B)

Make sure the rod of the flush valve is thrusted when the

button is pushed.

For Toilet flush valve

Before installing the cable, the bracket should be

reinstalled to the opposit direction.

( C, and also see Step 1)

For the left water supply

Test Run

1. Energize the primary side of the transformer (THU701TR

or THU700TR) For AC Type

2. Make sure the control stop is open.

3. Sit on the toilet seat. (for Toilet flush valve)

Stand within two feet from the front of the flush valve.

(for Urinal flush valve)

4. Stay there for six seconds or more and leave the toilet

seat or the urinal. The valve will automatically flush.

5. Press the manual flushing button and make sure the

valve flushes properly. (for Toilet flush valve)

6. Recheck all the pipe connections for water leaks. If the

flush valve is not operating properly following the test

run consult the Troubleshooting section of the Owner’s

Manual. Recheck installation procedures only after

turning off and locking out breaker for power line

Note to the installer

After the flush valve unit has been installed correctly,

please explain to your customer how to use it and tell him

or her to observe the following instructions.

1. Do not put any object in front of the sensor window

which could obstruct the sensor, causing the flush valve

to malfunction.

2. For troubleshooting, consult the Owner’s Manual.

1To minimize the risk of electrical shock and fire

hazard, turn off and lock out breaker for power line

before attempting troubleshooting, maintenance,

adjustment or repairs.

2If you lack the necessary skills required or have

difficulty following the directions for installation,

maintenance, repairs, troubleshooting or

adjustments, of the product, do not proceed without

help from a qualified person to assist you in

performing any of these functions.

Adjustment

WARNING: To minimize the risk of electrical shock and

fire hazard, turn off and lock out breaker for

power line before starting adjustment.

1. Adjustment of the discharge quantity

(1) Remove the front cover.

(2) Adjust the discharge quantity by rotating the screw

on the piston valve.

Wiring

WARNING: To minimize the risk of electrical shock and

fire hazard, turn off and lock out breaker for

power line before starting wiring.

This product must be connected to the type of power

source indicated on the installation instruction. If you are

not sure of the type of power source available, consult

your dealer or local power company.

The wiring diagram is shown below.

When connecting the secondary side of the transformer

to each flush valve, use only UL Class ΙΙ No.18 wires.

- Wiring Diagram -

Installation of the Transformer

WARNING: Whenever installing the transformer or wiring,

turn off and lock out breaker for power line in

order to minimize the risk of electrical shock or

fire hazard.

2. Adjustment of the flow rate

Adjust the flow rate by turning the screw/handle of the

control stop.

Turn the screw/handle to the right to decrease the flow

rate and turn it to the left to increase.

3. Adjustment of the detection range

The detection range of the infrared sensor does not

need to be adjusted because it has been factory-preset.

This automatic flush valve unit requires a special

transformer. When installing the transformer, please

observe the following instruction.

1. The wiring distance from the transformer to the flush

valve must be 45 feet (13.5m) or less.

Use UL class ΙΙ No.18 wire when connecting the flush

valve to the transformer.

2. This transformer can be connected to a maximum of 10

flush valves.

WARNING: Be sure to ground the 4"SQ box to eliminate

the risk of electrical shock or fire hazard.

Never kink or bend primary-side lead wires

and/or secondary-side lead wires of the

transformer when wiring them in the conduit

tube or the junction box altogether.

To increase To decrease

4"SQ-2-1/4"DEEP

Primary-side lead wires

(120V or 24V AC)

Secondary-side lead wires

(10V DC,1.95A)

Condult tube

(CONDUCTKO’S)

Transformer

V1

V2

V1

V2

Unit #1

Solenoid valve

6VDC

Unit #2

Solenoid valve

6VDC

Junction box

Junction box

Two·pole beraker

Transformer

120VAC60Hz, to 10VDC(THU701TR)

1.95A

or

24VAC60Hz,to 10VDC(THU700TR)

1.95A

A maximum of ten units

can be connected.

Sensor

Sensor

For TET2ANS-32

TET2DNS-32 For TET2ANS-31

TET2DNS-31

Wall surface

Back spud

Floor mount

Bowl 3-3/4"

(95mm)

1-1/2"

Wall surface

3-3/4"

(95mm)

3/4"or 1-1/4"

For TET2ANS-33

TET2DNS-33 For TEU2ANS-11,21

TEU2DNS-11,21

Original

for the right water supply for the left water supply

Cable casing

Stainless cable

Cable casing

Hinge

Bracket

Bracket

Hinge

A B C

Step 8

Tighten the coupling nut to prevent a water leak.

Coupling nut

Coupling nut

Step 11

For AC Type

Remove the battery case from the box.

Install the supplied 4 batteries into the battery case. Install

the battery case with the 4 batteries into the box exactly as

shown in the figure.

Connect the infrared sensor with the battery case by using

the connection wire.( A , B )

Connect the infrared sensor with the solenoid by using the

connection wire.( C , D )

For DC Type

A

C

B

B

A

C

D

Battery Battery case

Screw (Not used)

Step 12

Control stop Open

Step 13

Fasten the front cover to the box by tightening the screws

with the supplied tool. (Allen wrench)

Take care so that any cord, wire or chain might not be

caught between the front cover and the box.

Manual flush button

(Only for toilet flush valve)

Allen wrench

For only AC Type

Step 10

Connect the chain from the front cover with a hole on the

Hole

Open the control stop.

Do not proceed to step 13 until all water leaks are

eliminated by tightening all the pipe connections. Failure to

correct all water leaks prior to use may increase the risk of

electrical shock, fire hazard or damage to the product.

Connect the flush valve with the control stop and the

vacuum breaker.

Step 9

Attach the connector of the infrared sensor unit with the

connector from the junction box. ( A)

Attach the connector of the infrared sensor unit with the

connector from the solenoid by using connection wire.

( B, C)

Printed in August, 2001