White Rodgers T26 Thermostat User Manual


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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. © 2009 Johnson Controls, Inc.
www.johnsoncontrols.com
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Line Voltage Wall Thermostat (Heating, Cooling, or Heating and Cooling) (Continued)
HEATING AND COOLING
T22SDA-1C Knob SPDT, permits system shutdown
at the thermostat
Off-Auto 1-3 /4 (1) 2-1/4 (1.3) 1.3
T22SEB-1C SPDT, used when the same device
controls heating and cooling
Heat-Off-Cool
T22SFB-1C
2
SPDT, used to control separate
loads on heating and cooling
T22TFB-1C
2
SPDT, heavy duty, used to control
separate loads on heating and cooling
3 (1.7) 3 to 4 (1.7 to 2.2)
T26S-18C
3
SPDT None 1-3/4 (1) 2-1/4 (1.3) 1.0
T26T-3C
2
SPDT, heavy duty 3 (1.7) 3 to 4 (1.7 to 2.2)
TWO-STAGE
T25A-1C Knob Two SPDT switches
Two-stage heating, cooling or one
stage heating and one stage cooling
None 1-3/4 (1) 2-1/4 (1.3) 1.5
3 (1.7) between stagesT25A-16C Concealed
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.
T22 / T25 / T26 Series Line Voltage Wall Thermostat (Heating, Cooling, or Heating and Cooling (Continued)
Code
Number
1
Type of
Adjustment
Application Selector
Switch
Differential Approximately °C (°F) Ship
Wt. (lb)
Heating Cooling
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