Assa Abloy Securitron TSH Series User manual

1 500-17700, Rev D
Model TSH
Touch Sense Handle
Installation and
Operation Instructions

2 500-17700, Rev D
Table of Contents
Description ................................................................................................3
UL 294 Access Control Performance Levels ............................................3
Installing the TSH......................................................................................3
RemovetheHandle...............................................................................3
DrilltheMountingandWireWayHoles...............................................4
MountthePlasticBasetotheDoor......................................................5
ConnecttheElectricalWithinthePlasticBase.....................................5
MounttheHandletothePlasticBase..................................................6
ConnecttheElectricalWiringandPowerSupply..................................6
AdjustandTesttheSensitivity..............................................................8
TestandUsetheRedundant(Backup)Switch....................................10
InstallthePlaque................................................................................10
SelecttheElectricLock........................................................................10
ReplacetheSensor..............................................................................11
Operational Security Considerations ......................................................11
Troubleshooting ......................................................................................12
MagnaCare®Lifetime Replacement Warranty ........................................14

3 500-17700, Rev D
Description

The Model TSH touch sense handle is an exit device for doors secured
by electric locks. It can be employed as a door push or pull and is
particularly well suited for aluminum frame glass doors. The assembly
consists of a plastic base with an electronic touch sensor mounted
inside, and an aluminum handle which is used to pull or push the door
open. Touching the handle trips a relay in the sensor, releasing the lock.
The relay contacts are double pole with the second pole being optionally
employed to shunt either an alarm system or the alarm function of an
access control system. The unit’s sensitivity is adjustable. In the
unlikely event of sensor failure, a push switch is mounted on the plastic
base. Depressing the switch has the same effect as activating the
sensor by touch and therefore represents built in safety redundancy.
The TSH cannot be used outside in rain conditions.
As the TSH is normally used to allow egress on an electrically secured
door, make sure that you are complying with applicable building codes
for your area. Check with your local building department and/or fire
prevention department.
UL 294 Access Control Performance Levels
The following are the UL294 access control performance levels:
Destructive Attack = Level 1
Line Security = Level 1
Endurance = Level IV
Standby Power = Level 1
Installing the TSH
Remove the Handle
1. UNSCREW the handle from the plastic base (large Phillips screws) to
reveal the base mounting holes.
2. SET the handle aside.

4 500-17700, Rev D
Drill the Mounting and Wire Way Holes
NOTE 1: There are two different diameters of holes depending on the
door type. Hollow metal doors employ supplied machine
screws and "blind nut" fasteners. The second method is to use
wood screws (not supplied) on a solid wood door.
NOTE 2: If the TSH is used on a solid door, the door must be core
drilled to get the wire way cable to the hinge side for take-off
via the supplied door cord.
NOTE 3: The TSH may not be used on a fire-rated door that requires a
fire-rated latch (the TSH has no latch).
1. USE the supplied template to set drilling positions for the two
mounting holes.
2. For a hollow metal door, DRILL two 3/8" [9.5 mm] diameter
holes only deep enough to get
through the inner side of the door—
not completely through the door.
NOTE: The TSH may be mounted with wood screws (not furnished).
It is recommended that 1-3/4" #14 wood screws with a hex,
pan, oval, or round head be used for mounting.
3. For a solid wood door, DRILL two 3/16"
(5 mm) diameter holes
to a depth of 1-1/4" (32 mm).
NOTE 1: The TSH connects to its power source and to the devices it
controls using a six-conductor cable with push-on connector
(supplied).
NOTE 2: Exit from the door may be via the supplied door cord, which
may be mounted at the top of the door, where it is out of the
way, or via any of many commercially available transfer hinges
or pivots, which serve to route the wiring off the door in a
concealed manner.
NOTE 3: The template for the wire way hole is handed. The TSH can
be vertically flipped to suit a right hand or left hand door, but it
must be known which way the aluminum handle will face in
order to correctly orient the template.
4. DRILL a 3/8" [9.5 mm] diameter hole for the wire way.

5 500-17700, Rev D
Mount the Plastic Base to the Door
1. PERFORM the following to mount the plastic base to a hollow metal
door.
a. LOCATE the two supplied blind nuts.
b. INSERT the nuts with the knurl engaging the edge of each hole.
c. USE the supplied collapsing tool to collapse the nuts (see
Figure 1, “Collapsing the Blind Nuts in a Metal Door”).
d. PLACE a tooth washer under the head of each screw and
MOUNT the plastic base.
e. TIGHTEN the cap screw, but DO NOT OVERTIGHTEN.
Figure 1. Collapsing the Blind Nuts in a Metal Door
Connect the Electrical Within the Plastic Base
NOTE: Electrical connections with the plastic base must be made
before the handle is attached to the base.
1. ROUTE the cable connector across the circuit board and PLUG into
the corresponding connector on the board (see Figure 2, “Plastic
Base and Handle Detail”).

6 500-17700, Rev D
Figure 2. Plastic Base and Handle Detail
Mount the Handle to the Plastic Base
1. INSTALL the handle onto the base using the two large flathead
Phillips screws.
Connect the Electrical Wiring and Power Supply
NOTE 1: Figure 3, “TSH Wiring for Fail Safe Electric Lock,” and
Figure 4, “TSH Double Break Wiring,” show a generic use of
the TSH with any type magnetic lock and power supply.
NOTE 2: When using all Securitron products, the installation is simple.
It should be noted that for any Securitron Magnalock, the red
wire denotes the "+" input and the black wire denotes the “–“
input. Also, the MOV does not need to be installed with any
Securitron Magnalock.
1. CONNECT the electrical wiring in accordance with Table 1, “Sensor
Wiring,” and Figures 3 and 4.

7 500-17700, Rev D
Table 1. Sensor Wiring
Wire Colo
r
Connection
Red “+” DC Power
Black “–“ DC Power
White Relay Common, Pole 1
Green Relay Normally Closed, Pole 1
Blue Relay Common, Pole 2
Orange Relay Normally Closed, Pole 2
Figure 3. TSH Wiring for Fail Safe Electric Lock
Figure 4. TSH Double Break Wiring
2. CONNECT the power supply outputs to the rest of the system as
shown above.

8 500-17700, Rev D
Adjust and Test the Sensitivity
NOTE: The TSH is capable of being operated by a wide variety of
power supplies and does not require regulated power.
However, a certain class of power supplies called "switching"
can sometimes interfere with operation. Switching power
supplies can produce line noise which affects the TSH by
rendering it hard to adjust.
1. PERFORM the following if the TSH is hard to adjust.
a. REPLACE the power supply with a linear power supply, if
possible.
b. IF not,
THEN CONNECT one 0.01 mF capacitor between power supply
“+” and earth ground, and CONNECT a second 0.01 mF
capacitor between power supply “–“ and earth ground (see
Figure 5, “Connecting Capacitors to a Switching Power Supply.”
Figure 5. Connecting Capacitors to a Switching Power Supply
2. PERFORM the following test to make sure a problem does not exist
after the installation is complete.
a. TURN UP the sensitivity up to the point just before it is open all
the time.
NOTE: The effect of coupling the reader's energy though a body
into the door tends to increase the sensitivity of the TSH.
b. From the outside of the door, PLACE hand on the reader and
LEAN body against the door to see if the TSH can be triggered.

9 500-17700, Rev D
NOTE 1: Securitron has developed a simple filter circuit which will
absorb the interference from the reader. This requires a
22 millihenry (mH) inductor (DigiKey Part # M7223-ND, JW
Miller Part # 70F222AI). This part can also be purchased
at a local electronics parts supply house or directly from
Securitron.
NOTE 2: Because the inductor is an insulated part, it can lay in the
cavity in the plastic base on top of the circuit board.
c. INSTALL the inductor by identifying the ring terminal with brown
wire, which connects the “antenna” screw on the back side of the
aluminum handle to the circuit board, clipping this wire, and
splicing in the inductor.
3. ADJUST the sensitivity.
NOTE 1: The sensor board has a potentiometer which is accessible
through a “pot access hole” from the top of the aluminum
handle before the plaque has been installed (see
Figure 2). The potentiometer increases sensitivity when
turned clockwise and decreases it when turned
counterclockwise. An LED on the sensor circuit board,
also visible through an access hole in the aluminum
handle (see Figure 2), “follows” the sensor. It is on when
the sensor is releasing the door.
NOTE 2: In the following step, sensitivity is so high that the unit is
on all of the time.
a. ROTATE the potentiometer (POT) clockwise, without touching
the TSH, until the LED just turns on.
b. ROTATE the POT slowly counterclockwise until the LED turns
off, and then another 15 degrees counterclockwise.
c. EXPERIMENT by touching the handle and observing if the LED
comes on.
d. ADJUST the POT, as required.

10 500-17700, Rev D
Test and Use the Redundant (Backup) Switch
NOTE: Pushing the redundant backup button breaks the connection
between white (COM1) and green (NC1) wires just the same
way as if the TSH was touched, providing a "hard" backup
circuit break which releases the controlled fail safe lock.
1. TEST the redundant (backup) switch (red push switch mounted on
the side of the plastic base) for functionality in providing backup in
case of any malfunction or maladjustment of the sensor.
Install the Plaque
NOTE 1: The two supplied plaques provide the following choices:
A legend can be selected, either “PULL” or “PUSH”,
depending on which way the door swings
The back side of either plaque can be selected, which will
yield a plain finish in either a matching or contrasting color
to the color of the handle depending on aesthetic
preference
NOTE 2: A choice of colors is provided for the included screws to match
the selected plaque color.
1. INSTALL a plastic plaque in the slot in the aluminum handle to cover
up the mounting holes and access holes to the circuit board, after the
wiring is complete.
Select the Electric Lock
NOTE 1: The TSH allows silent and immediate egress without the
mechanical action of traditional exit devices, which require
periodic maintenance and replacement.
NOTE 2: Having no moving parts, the TSH possesses an extended
operating life.
NOTE 3: The TSH was designed for use with Securitron's Magnalock.
The Magnalock secures the door with magnetic force only and
therefore has no possibility of jamming and thereby denying
egress. The Magnalock also has internal electronics which
allow it to release very rapidly. When used with the TSH, which
is also a fast device, exit is immediate and the impression a
person exiting gets is that the door is not locked at all.
1. SELECT the appropriate electric lock to use with the TSH.