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T841D,E HEATING-COOLING  THERMOSTATS

Fig. 2. Internal schematic and typical wiring diagram fo r T841D. 

Provides 1-stage heating and 2-stage cooling control.

Fig. 3. Internal schematic and typical w iring diagram fo r T841E. 

Provides 2-stage heating and 1-stage cooling control.

3

69-1066

Summary of Contents for t841e

Page 1: ...COOL AUTO ON 3 F R O N T O F D E V IC E B A C K O F D E V IC E SYS TEM SWITCH FAN SWITCH THERMOMETER SETPOINT SCALE LED UP TO THREE MOUNTING HOLES 4 WIRING TERMINAL 1 UP TO 12 COVER Fig 1 External view of T841 OPERATION The T841E stages of heat make sequentially as the temperature drops Make refers to the mercury switch initiating a call for heat or cool There is about 1 F 0 6 C between stages so ...

Page 2: ...l behind the thermostat This thermostat is a precision instrument and was carefully adjusted at the factory Handle carefully Mounting and Wiring The T841 can be mounted directly to a wall or horizontal outlet box Choose the method that best fits your installation In replacement applications check the existing thermo stat wires for cracked or frayed insulation Replace any wires in poor condition Al...

Page 3: ...ig 2 Internal schematic and typical wiring diagram for T841D Provides 1 stage heating and 2 stage cooling control Fig 3 Internal schematic and typical wiring diagram for T841E Provides 2 stage heating and 1 stage cooling control 3 69 1066 ...

Page 4: ... switch to AUTO Move the setpoint lever to about 10 F 6 C above room temperature Heating should start The fan should start after a short delay Move the setpoint lever about 10 F 6 C below room temperature Heating should shut off The fan will shut off after a short delay Cooling A CAUTION Do not operate cooling if outdoor temperature is below 50 F 10 C Refer to the manufacturer recommendations Move...

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