Johnson Controls T91 Series Data Sheet

T91 Series Room Temperature

Sensor

Temperature Control Sensors and Accessories

Code No. LIT-1922280

T91 Series Room Temperature Sensor

Description

The T91 Series Temperature Sensor is a
solid state thermistor sensor detects
temperature changes in a room or similar
space.

Series T91 Sensors may be used directly with
Series M100Q Motor Actuators.

Refer to the T91 Thermistor Room

Temperature Sensor Product Bulletin

(LIT-125675) for important product

application information.

Applications

Use for room or space temperature sensing to
position sequencers or actuators for heating
and/or cooling systems.

Selection Chart

Product Code

1

Number

T91BAA-1C 40/90 (5/32) No Remote – –
T91BBA-1C 40/90 (5/32) No Concealed – –
T91BCA-1C 40/90 (5/32) Yes Knob – –

1. Supplied with vertical faceplate installed.

Range
°F (°C)

Features

• highly sensitive thermistor sensing
element

• fast response

• integral Fan and System switch options

• vertical or horizontal mounting

• three types of adjusters: external knob,
concealed knob, or provisions for remote
setpoint

• easy to install and wire

• separable mounting plate with screws
saves installation time

Repair Information

If the T91 Series Room Temperature Sensor
fails to operate within its specifications, replace
the unit. For a replacement sensor, contact the
nearest Johnson

Thermometer Setpoint Adjustment Switches

Controls®

representative.

Fan System

Technical Specifications

T91 Series Room Temperature Sensor

Ambient Temperature -40 to 140°F (-40 to 60°C)
Baseplate 0.050 in. (1 mm) cold rolled steel with dichromate dip finish
Cover 0.025 in. (1 mm) cold rolled steel. Baked on tawny silver finish. Faceplat e is aluminum with dark bro wn and

Electrical Rating for Switches 5 A at 24 VAC
Wiring Connections 6 in. No. 18 color coded wire leads

light brown finish. Letters and markings are bright aluminum surface.

The performance specifications are nomina l and con form to accep table ind ustry stand ards. For applicati ons at con ditions be yond these specification s, consult th
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2015 Johnson Controls, Inc.

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