Product Overview

The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office.
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2011 Johnson Controls, Inc.
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T-4002
Single Temperature High Volume Output Thermostat
Description
The T-4002 Thermostat is a high volume
output, single temperature thermostat.
Refer to T-4000 Series Pneumatic Room
Thermostat Product Bulletin (LIT-7171060P)
for important product information.
Features
• available in Direct Acting (DIR) and
Reverse Acting (REV) models
• includes Fahrenheit dial
• available in vertical or horizontal model
Selection Charts
T-4002 Thermostats
1
1. Order cover and mounting bracket separately.
Code Number Description
T-4002-201 Direct Acting, Horizontal Mounting
T-4002-202 Reverse Acting, Horizontal Mounting
T-4002-203 Direct Acting, Vertical Mounting
T-4002-204 Reverse Acting, Vertical Mounting
Commonly Used Accessories for T-4002 (Part 1 of 2)
Code
Number
Description
T-4002-124 Room instrument mounting bracket
for surface-mounting thermostats and
covers; includes drywall clips,
spacers, and mounting templates
(must be ordered in multiplies of ten)
T-4002-122 Terminal Connector, with two straight
fittings for plug-in connection to
5/32 in. O.D. polyethylene tubing
(must be ordered in multiplies of ten)
T-4002-123 Terminal Connector, with angle
fittings for surface mounted
thermostats with exposed tubing
(must be ordered in multiplies of ten)
T-4002-5003 Restricted adjustment pin (100/kit)
restricts adjustment of set point dial
T-4002-5012 Adjusting knob kit provides a means
of external setpoint adjustment
T-4002-5017 External set point dial, Horizontal °F
T-4002-5018 External set point dial, Vertical °F
T-4000-2138 Beige Plastic Cover,
Horizontal or Vertical
(no Johnson Controls Logo, no
thermometer, no set point windows)
T-4000-2139 Beige Plastic Cover, Horizontal (no
thermometer, no set point windows)
T-4000-3139 White Plastic Cover, Horizontal (no
thermometer, no set point windows)
Note: For additional accessories, refer to T-4000 Series Accessories.
Technical Specifications
T-4000-2140 Beige Plastic Cover, Horizontal,
thermometer (no set point windows)
T-4000-3140 White Plastic Cover, Horizontal,
thermometer (no set point windows)
T-4000-2141 Beige Plastic Cover, Horizontal,
1 set point window (no thermometer)
T-4000-3141 White Plastic Cover, Horizontal,
1 set point window (no thermometer)
T-4000-2142 Beige Plastic Cover, Horizontal,
1 set point window with thermometer
T-4000-3142 White Plastic Cover, Horizontal,
1 set point window with thermometer
T-4000-2144 Beige Plastic Cover, Vertical (no
thermometer, no set point windows)
T-4000-3144 White Plastic Cover, Vertical (no
thermometer, no set point windows)
T-4000-2145 Beige Plastic Cover, Vertical,
1 set point window (no thermometer)
T-4000-3145 White Plastic Cover, Vertical,
1 set point window (no thermometer)
T-4000-2146 Beige Plastic Cover, Vertical,
1 set point window with thermometer
T-4002 Single Temperature High Volume Output Thermostat
Sensitivity Adjustable from 0.75 to 4.0 psig/°F (9 to 50 kPa/°C)
Factory set at approximately 2.5 psig/°F (32 kPa/°C)
Flow Capacity 400 SCIM (107 mL/s)
Air Consumption 20 SCIM (5 mL/s)
Supply
Pressure
13 to 25 psig (91 to 175 kPa)
Nominal 20 psig (140 kPa)
Dial Range 55 to 85°F
Air Connections Two (Supply and Output)
Commonly Used Accessories for T-4002 (Part 2 of 2)
Code
Number
Description
Code No. LIT-1921660
Issued January 15, 2008
T-4002 Single Temperature
High Volume Output Thermostat
Repair Information
If the T-4002 Thermostat fails to operate
within its specifications, replace the unit. For a
replacement thermostat, contact the nearest
Johnson Controls® representative.