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-4100
Single Temperature Low Volume Output Thermostat
Description
The T-4100 Thermostat is a low volume
output, single temperature thermostat.
Refer to T-4000 Series Pneumatic Room
Thermostat Product Bulletin (LIT-7171060P)
for important product information.
Repair Information
If the T-4100 Single Temperature Low Volume
Output Thermostat fails to operate within its
specifications, replace the unit. For a
replacement thermostat, contact the nearest
Johnson Controls® representative.
Selection Charts
T-4100 Thermostat
Code
Number
Description
T-4100-1 Direct Acting, Fahrenheit
T-4100-3 Direct Acting, Celsius
T-4100-2 Reverse Acting, Fahrenheit
T-4100-4 Reverse Acting, Celsius
Accessories for T4100
Code
Number
Description
R-3710 Series 0.005 or 0.007 inch Restrictors
Technical Specifications
T-4100 Single Temperature Low Volume Output Thermostat
Sensitivity Adjustable from 1 to 3 psig/°F (12 to 38 kPa/°C)
Factory set at approximately 2.5 psig/°F (32 kPa/°C)
Flow Capacity 45 SCIM (12 mL/s) with .007 in. Restrictor
25 SCIM (7 mL/s) with .005 in. Restrictor
Air Consumption 45 SCIM (12 mL/s) or 25 SCIM (7 mL/s) depending on Restrictor
Supply Pressure 13 to 25 psig (91 to 175 kPa)
nominal 20 psig (140 kPa)
Dial Range 55 to 85°F or 12 to 28°C
Air Connections One Restricted Supply/Output
Code No. LIT-1921695
Issued January 15, 2008
T-4100 Single Temperature
Low Volume Output Thermostat
Features
• mounts vertically
• provided with exposed or concealed set
point adjustment
• available as Direct Acting (DIR) or
Reverse Acting (REV) model
• includes standard Fahrenheit and Celsius
thermometer
• requires only one air connection with the
use of a remote restrictor
• available in vertical only