Trane 7722TX Installation Instructions Manual

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Wireless Zone Sensor

Model

7722TX

(TRANE

Part

No. X13790126060)

INSTALLATIQN INSTRUCVONS

INTRODUCTION

This wireless

zane

sensor is designed for use in a

temperature control system, operating

in conjunction with a
centrally located Spread Spectrum Receiver (Model 7712RX).
Zone sensors are installed in areas where temperature
control is to be maintained. Ideally, the receiver should be
equidistant from all its assigned zone sensors.

The zone sensor measures temperature and periodically
transmits that information via RF stgnals to its assigned
receiver. The sensor also transmits occupant set point
temperature. Other information that can be transmitted
includes special service requests, unique serial number of
sensor, and status of the batteries in the unit.

RF signals from wireless zone sensors are received by a
receiver, which will then send appropriate messages via

communication wires to specific

.heating

and air conditioning
equipment assigned to it. This information is also sent to a
central controller for system monitoring.

After mounting each wireless sensor, the Model 7712lT
Installation Tool can be used to assign each sensor to a

necessary instructions for this are contained in the
instructions accompanying the 7712lT Installation Tool.

INSTALLATION
Location

Wireless sensors can be installed anywhere on common

walls and panitions. Operation will not be affected by metal
framing in walls or partitions; however, mounting to solid
metal walls or cabinets may reduce the operating distance
between the zone sensor and the receiver. Typical line-ot-
sight transmission range indoors for sensors is approximately

1OOOfeet

Mounting (Fig. 2)

A mounting plate is provided with the sensor. If attached to

the back of the sensor, release it by depressing the ‘locking
tab’ at the bottom center of the mounting plate with the blade
of a screwdriver, and then sliding the plate downward.

Mount the plate on the selected wall or partition with the
VELCRO strips or screws provided. Hooks must point upward
(the plate also has the word ‘TOP’ molded into the top side).

Position the sensor onto the mounting plate so that the
mounting plate hooks enter the keyhole slots in the back of
the sensor, then slide downward to lock the sensor in place.

Battery Installation (Fig. 3)

The sensor uses two 3-volt Lithium batteries (supplied).
Remove the sensor cover by squeezing the cover at the top
and bottom and then pulling the cover away.

Install one battery in each compartment in the sensor. THE
SENSOR WILL NOT OPERATE WtTH ONLY ONE

BATTERY.

Note: Batteries will not seat properly in their compartments if
installed incorrectly with regard to polarity. Make sure each
battery is fully seated in the compartment and that proper

conted

is being made at each end of the battery.

WSHBlJl

SWrTC

i

n

0

ii

Figure 1.

Typkal

Wireless

Sensor

‘tiooks’

TON

SIES

LCCANG TAB

Fkf~ure 2. Mounting Plate

GREEN

LED’

a-w

a4oER

(For4

CONNECTION

OF

INSTALlATlOh

TOOL)

LOCKING TAB

(P!AE.SS IN-WAR0

TO RELEASE SENSOR FROM PLATQ

Figure

3. Wireless

tinsor,

Cover Removed

Removing A Sensor From Its Mounting Plate

To remove a sensor from its mounting plate after installation,
press inward on the ‘locking tab’ at the bottom center

(just

to

the left of the

&pin

header), and slide the sensor up and

off

the mounting plate. See Figure 3 for location of the locking
tab.

FUNCTIONAL ELECTRICAL TEST

This

check should be performed after a zone sensor has

been mounted and the batleries installed. The cover must be

Otf.

If

the

sensor is equipped with a temperature control, set the

control dial with

‘70’

in

the 9 o’clock

position.

Press either one d the two pushbutton

switches on

.the

upper

left

side of

the sensor. The green LED near the bottom of the

circuit board should flash each time the pushbutton is

pressed. If it does not,

check that both batteries are good and

are

property seated in the holders.

In normal use, the green LED will Hash each time the zone

sensor transmits a message,

usually several minutes apart.

SET-UP PROCEDURE
Rater to the

sensor set-up procedures In

the

instructions

8ccompanylng the Model 771211

installation

Tool.

SPECIFICATIONS

Dlmenslonr: Height:

4-l/16’
Wiih: 5’
Depth: l-5416’ (not

incfuding

mounting plate).

(103mmH

x

127mmW x 33mmD)

Range:

Nominal

1OOO

feet fine-of-sight, indoors.

Batledes:

Two

3vdl&‘3A

Lithium Batteries.

Use only Trane No.

X1377001

7010, Panasonic

CR123A,

Duracell 1234 or Sanyo

CR123A

for

replacement.

Risk of fire, explosion and

bur’ns.

Do not

or inctnerate. Dispose of used batteries

USER NOTE

CHANGES OR MOOIFICATIONS MAOE TO THIS EOUIPMENT WHICH ARE
NOT EXPRESSLY APPROVED BY THE AGENT FOR THE

TRANE

COMPANY
RESPONSIBLE FOR COMPLIANCE WITH FEDERAL REGULATIONS COULD

VOID THE USER’S AUTHORITY TO OPERATE THIS EQUIPMENT.

THE

TFIANE

COMPANY,

Commercial Systems Group

3600

Pammel

Creek Road,

Lacrosse, WI 54602

Copyright

0

1994