Johnson Controls T22 Series Catalog Page
T22 / T25 / T26 Series
SeriesT26
Action on Increase
of Temperature
1
2
3
Line Voltage Wall Thermostat
(Heating, Cooling, or Heating and Cooling
Description
For line voltage control of residential, commercial, or industrial heating
or year- round air conditioning. Heat or cold anticipators are not
required. The liquid-charged temperature sensing element and highly
efficient diaphragm and leverage provides close temperature control.
Series T25
Code No. LIT-1922255
Issued July 1, 2006
Features
• attractive beige colored, high-impact plastic enclosure (T26 Series)
• close differential without the need for anticipators
• bi-metal thermometer supplied as standard except where indicated
• equipped with adjustable dial stops (T26 Series)
Selection Chart
Code
Number
T22AAA-1C
T22ABC-1C
T22ABC-3C Concealed
T22BBC-1C
T22CBC-3C Concealed
T26A-14C
(No thermometer)
T26A-15C
(No thermometer)
T22JAA-1C
T22JCC-1C Auto-Off-Fan
T26J-7C
(No thermometer)
T26J-9C
(No thermometer)
T22SDA-1C
T22SEB-1C SPDT, used when the same device
T22SFB-1C
T22TFB-1C
T26S-18C
T26T-3C
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. © 2006 Johnson Controls, Inc.
Y
B
R
High Stage
Action on Increase
of Temperature
T25, T26 Series Action Diagrams
1
2
2
3
2
Y
B
R
Low Stage
Type of
Adjustment
Knob
Knob
Knob
Knob
Knob
T22
T25
Applications
Use for line voltage control of heating and cooling equipment.
t28cd.eps
t28cd.eps
Specifications
Temperature range is 40 to 90°F (5 to 30°C), except energy
conservation models.
Accessories
• replacement knobs and faceplates
• for double trim plate for mounting two T22s or T26s
Application Selector
Switch
Differential Approximately °C (°F) Ship
Heating Cooling
Heating
Off-Auto
SPST
SPST, Medium Duty
SPST, Heavy Duty
SPST, Energy Conservation Heating
model, max. setting 75°F (24°C)
SPST, Energy Conservation Heating
model, max. setting 65°F (18°C)
Auto-Off-Fan
None 2 (1.1) 1.0
1 3/4 (1)
3 (1.7)T22CBC-1C
–
Cooling
SPST
SPST, Energy Conservation Cooling
model, min. setting 75°F (24°C)
SPST, Energy Conservation Cooling
model, min. setting 78°F (26°C)
Off-Auto
2 1/4 (1.3) 1.3
–
None
2 (1.1) 1.0
HEATING AND COOLING
SPDT, permits system shutdown
at the thermostat
controls heating and cooling
SPDT, used to control separate
loads on heating and cooling
SPDT, heavy duty, used to control
separate loads on heating and cooling
SPDT
SPDT, heavy duty 3 (1.7) 3 to 4 (1.7 to 2.2)
Off-Auto
Heat-Off-Cool
None
1-3 /4 (1) 2-1/4 (1.3)
3 (1.7) 3 to 4 (1.7 to 2.2)
1-3/4 (1) 2 1/4 (1.3)
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T26
Wt. (lb)
1.3
1.3
1.0
Line Voltage Wall Thermostat (Heating, Cooling, or Heating and Cooling (Continued)
Selection Chart (Continued)
Code
Number
T25A-1C Knob Two SPDT switches
T25A-16C
1. For the thermostat guard, refer to G Series
2. Can also be used where one unit provides both heating and cooling by adding a jumper between terminals 2 and 3. (See.)
3. Includes a faceplate for horizontal mounting. The plate is for on-the-job installation over a vertical plate.
1
Can field-convert to other configurations.
The T26S-18 is a universal replacement for Honeywell T451A, -B, T651A; White Rodgers 179-1, 180-1, 181 -1, 182-101, -102; Robertshaw TA500, TH71,
-72, -79, -500, TX550.
T26T-3 replaces: Honeywell T4051A, -B, T6051A; White-Rodgers 151-6, 152-9, 159-3, -5.
Type of
Adjustment
Concealed
Application Selector
Switch
TWO-STAGE
Two-stage heating, cooling or one
stage heating and one stage cooling
Thermostat and Humidistat Guards Catalog Page.
None
Differential Approximately °C (°F) Ship
Heating Cooling
1-3/4 (1) 2-1/4 (1.3)
3 (1.7) between stages
Wt. (lb)
1.5
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. © 2006 Johnson Controls, Inc.
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