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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. © 2015 Johnson Controls, Inc. www.johnsoncontrols.com
R-70
T23 Series Fan Coil Thermostat (with Fan and System Selectors)
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.
Refer to the T23 Series Line Voltage Fan Coil
Thermostat Product Bulletin (LIT-125635) for
important product application information.
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.
Product Code
Number
Switches Range °F (°C) Differential F° (C°) Shipping
Weight (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 Amperes 5.8 2.9
AC Locked Rotor Amperes 34.8 17.4
Pilot Duty 125 VA, 120 to 240 VAC
T23A-1 Thermostat
Multi-Stage Electromechanical Temperature Controls
Code No. LIT-1922260
Repair Information
If the T23 Series Fan Coil Thermostat (with Fan
and System Selectors) fails to operate within its
specifications, replace the unit. For a
replacement thermostat, contact the nearest
Johnson
Controls®
representative.