Johnson Controls T-4003 Catalog Page

T-4003

T-4003 Submaster Thermostat

Submaster High Volume Output Thermostat

Code No. LIT-1921665
Issued January 15, 2008

Description

The T-4003 Submaster Thermostat is a high
volume proportional thermostat. The T-4003
can be reset from a remote location, or in
accordance with a referenced temperature
variation.

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 horizontal model only

Repair Information

If the T-4003 Submaster Thermostat fails to
operate within its specifications, replace the
unit. For a replacement thermostat, contact
the nearest Johnson Controls®
representative.

Selection Charts

T-4003 Submaster Thermostat

Code Number Description

T-4003-201 Direct Acting, Horizontal Mounting
T-4003-203 Reverse Acting, Horizontal Mounting

1. Order cover and mounting bracket separately.

Commonly Used Accessories for T-4003

Code
Number

T-4002-124 Room instrument mounting bracket for

T-4512-100 T ermin al Connector, with three straight

1

Description

surface-mounting thermostats and
covers; includes drywall clips, spacers,
and mounting templates

fittings for plug-in connection to
5/32 in. O.D. polyethylene tubing

Technical Specifications

T-4003 Submaster High Volume Output Thermostat

Sensitivity Fixed at approximately 2.5 psig/°F (32 kPa/°C)
Remote Reset Adjustable from 0.15 psig to 2.5 ° F/P SI (1.8 t o 30° C/kPa)
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)
Master Pressure Variable Input 0 to 20 psig (0 to 140 kPa)
Dial Range 55 to 85°F
Air Connections Three (Supply, Output, Remote Reset Input)

T-4002-5003 Restricted adjustment pin (100/kit)

T-4000-2138 Beige Plastic Cover, Horizontal or

T-4000-2139 Beige Plastic Cover, Horizontal (no

T-4000-3139 White Plastic Cover, Horizontal (no

T-4000-2140 Beige Plastic Cover, Horizontal,

T-4000-3140 White Plastic Cover, Horizontal,

T-4000-2141 Beige Plastic Cover, Horizontal,

T-4000-3141 White Plastic Cover, Horizontal,

T-4000-2142 Beige Plastic Cover, Horizontal,

T-4000-3142 White Plastic Cover, Horizontal,

restricts adjustment of set point dial

Vertical (no thermometer, no set point
windows)

thermometer, no set point windows)

thermometer, no set point windows)

thermometer (no set point windows)

thermometer (no set point windows)

1 set point window (no thermometer)

1 set point window (no thermometer)

1 set point window with thermometer

1 set point window with thermometer

Note: For additional accessories, refer to T-4000 Series Accessories.

The performance specifications are nomina l and conf orm to accep table industr y standar ds. For ap plications a t condition s beyond th ese specification s, consult the local Johnson Controls o ffice.
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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