White Rodgers T25, T26, T22 User Manual
T22 / T25 / T26 Series
Series T25
Action on Increase
of Temperature
R
B
Y
Low Stage
R
B
Y
High Stage
p
Line Voltage Wall Thermostat (Heating, Cooling, or Heating and Cooling)
Description
For line voltage control of residential,
commercial, or industrial heating or yearround air conditioning. Heat or cold
anticipators are not required. The liquidcharged temperature sensing element and
highly efficient diaphragm and leverage
provide close temperature control.
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)
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
Applications
Use for line voltage control of heating and cooling equipment.
T22
T25
Code No. LIT-1922255
Issued February 1, 2009
T26
SeriesT26
3
2
1
t28cd.eps
Action on Increase
of Tem
erature
t28cd.eps
T25, T26 Series Action Diagrams
Selection Chart
T22 / T25 / T26 Series Line Voltage Wall Thermostat (Heating, Cooling, or Heating and Cooling
Code
Number
1
HEATING
T22AAA-1C Knob SPST Off-Auto 1-3/4 (1) – 1.3
T22ABC-1C Auto-Off-Fan
T22ABC-3C Concealed
T22BBC-1C Knob SPST, Medium Duty 3 (1.7)
T22CBC-1C SPST, Heavy Duty
T22CBC-3C Concealed
T26A-14C
(No thermometer)
T26A-15C
(No thermometer)
COOLING
T22JAA-1C Knob SPST Off-Auto – 2-1/4 (1.3) 1.3
T22JCC-1C Auto-Off-Fan
T26J-7C
(No thermometer)
T26J-9C
(No thermometer)
Type of
Application Selector
Adjustment
Knob SPST, Energy Conservation Heating
model, max. setting 75°F (24°C)
SPST, Energy Conservation Heating
model, max. setting 65°F (18°C)
SPST, Energy Conservation Cooling
model, min. setting 75°F (24°C)
SPST, Energy Conservation Cooling
model, min. setting 78°F (26°C)
Switch
None 2 (1.1) 1.0
None
Heating Cooling
2 (1.1) 1.0
Wt. (lb)
Differential Approximately °C (°F) Ship
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. © 2009 Johnson Controls, Inc.
1 of 2
www.johnsoncontrols.com
Line Voltage Wall Thermostat (Heating, Cooling, or Heating and Cooling) (Continued)
T22 / T25 / T26 Series Line Voltage Wall Thermostat (Heating, Cooling, or Heating and Cooling (Continued)
Code
Number
1
HEATING AND COOLING
T22SDA-1C Knob SPDT, permits system shutdown
T22SEB-1C SPDT, used when the same device
T22SFB-1C
T22TFB-1C
T26S-18C
T26T-3C
2
2
3
2
TWO-STAGE
T25A-1C Knob Two SPDT switches
1. For the thermostat guard, refer to G Series Thermostat and Humidistat Guards Catalog Page, LIT-1922145.
2. Can also be used where one unit provides both heating and cooling by adding a jumper between terminals 2 and 3. (See Typical Wiring Diagram and Electrical
Ratings for Line Voltage Thermostats Catalog Page, LIT-1922600.)
3. Includes a faceplate for horizontal mounting. The plate is for on-the-job installation over a vertical plate.
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
Application Selector
Switch
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 None 1-3/4 (1) 2-1/4 (1.3) 1.0
SPDT, heavy duty 3 (1.7) 3 to 4 (1.7 to 2.2)
Two-stage heating, cooling or one
stage heating and one stage cooling
Off-Auto 1-3 /4 (1) 2-1/4 (1.3) 1.3
Heat-Off-Cool
None 1-3/4 (1) 2-1/4 (1.3) 1.5
Differential Approximately °C (°F) Ship
Heating Cooling
3 (1.7) 3 to 4 (1.7 to 2.2)
3 (1.7) between stagesT25A-16C Concealed
Wt. (lb)
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. © 2009 Johnson Controls, Inc.
www.johnsoncontrols.com
2 of 2
Loading...