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. © 2009 Johnson Controls, Inc. www.johnsoncontrols.com
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T23 Series
Fan Coil Thermostat (with Fan and System Selectors)
Code No. LIT-1922260
Issued February 1, 2009
Description
This line voltage thermostat controls heating,
cooling, or combination heating and cooling
systems. It operates fan motors, relays, or
valves on fan-coil units. All thermostats have
a three-speed fan selector switch.
Features
• dual voltage switching provided
(120/240 VAC) without the need for
anticipators to achieve close temperature
control
• field-adjustable high and low dial stops
• mounts on a standard double outlet box
• attractive one-piece beige cover with inlaid
two-tone panel
Applications
• line voltage control of fan motors, relays,
or valves on fan-coil units
h

2
MED
HI
OFF
HEAT
3
5 6
LO
4
COOL
R
B
Y
h
2
MED
HI
OFF
AUTO
3
5 6
LO
Y
B
R
T23A Thermostat
t23a.eps
h
2
MED
HI
OFF
AUTO
3
5 6
LO
Y
B
R
T23B Thermostat
t23b.eps
Selection Chart
Technical Specifications
Mounts on a standard double outlet box.
Code
Number
Switches Range °F (°C) Differential F° (C°) Ship
Wt. Lb
Fan System Heating Cooling
T23A-1C Low-Med-High Heat-Off-Cool
50 to 90
(10 to 32)
1-3/4 (1) 2-1/4 (1.3) 1.5
T23B-1C Low-Med-High Auto-Off
Electrical Ratings
Motor Ratings VAC 120 240
AC Full Load Amp 5.8 2.9
AC Locked Rotor Amp 34.8 17.4
Pilot Duty – 125 VA, 120 to 240 VAC
T23A-1