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T8131A,B,C; T8132A,B,C
Programmable Thermostats
The T8131 and T8132 Thermostats provide
energy savings for single-stage heating and cool-
ing applications while providing reliable, precise
temperature control.
T8131C
T8132C
T8131/T8132 Models T8131 Models Only
n HEAT-OFF-COOL system switch. n Powered directly from 24 Vac system transformer.
n AUTO-ON fan switch. n Green light emitting diode (LED) lights when prop-
erly connected.
n Separate programs for weekdays and weekends
5 day/2 day. n Two A
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T8131A,B,C; T8132A,B,C SPECIFICATIONS • ORDERING INFORMATION Specifications IMPORTANT: The specifications given in this publica- T8131B/T8132B Programmable Thermostats: Provide tion do not include normal manufacturing toler- eight program keys; without keyboard door. ances; therefore, an individual unit may not exactly T8131C/T8132C Programmable Thermostats: Deluxe match the listed specifications. Also, this product is models, provide twelve program keys including us- tested and calibrated under
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T8131A,B,C; T8132A,B,C SPECIFICATIONS • INSTALLATION CYCLES PER HOUR ADJUSTMENT: Heating: Field adjustable to 3, 6, or 9 cph ±10 percent. Fig. 2—T8131 LED. Cooling: Factory-set at 3 cph ±10 percent (not field LED LIGHTS WHEN PROPERLY CONNECTED adjustable). CALIBRATION: Thermostat and thermometer self-cali- POWER brating to ±1.25° F. FINISH: All models available in taupe and Premier White™. ACCESSORIES: 205013 Isolation Relay kit. 205014 Transformer Plug-in Kit. 205015 International Organization
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T8131A,B,C; T8132A,B,C INSTALLATION Fig. 3—Mounting thermostat mounting plate. Fig. 5—3-wire heat-only application. WALL ANCHORS (2) 3-WIRE HEAT-ONLY A WIRES THROUGH B WALL OPENING W Y G WALL R C 1 HEATING MOUNTING L1 RELAY OR (HOT) PLATE VALVE COIL L2 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M9213 MOUNTING SCREWS (2) M1718 Fig. 6—4-wire cool-only application. WIRING All wiring must comply with all applicable electrical 4-WIRE COOL-ONLY codes, o
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T8131A,B,C; T8132A,B,C INSTALLATION Fig. 8—2-wire heat-only application (jumper Fig. 10—4-wire heat/cool application (jumper intact). intact). 2-WIRE HEAT-ONLY (JUMPER INTACT) 4-WIRE HEAT/COOL (JUMPER INTACT) A C A C B D B D JUMPER W Y G W Y G JUMPER Rc Rc R R HEATING HEATING COOLING RELAY OR RELAY OR CONTACTOR L1 VALVE COIL VALVE COIL COIL (HOT) 1 L2 FAN RELAY L1 (HOT) 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERL
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T8131A,B,C; T8132A,B,C INSTALLATION ADJUST FAN OPERATION SWITCH, AS an electric heat system, set the switch to “E.” The “E” REQUIRED setting will allow the fan to turn on immediately with the The thermostat fan operation switch, labeled FUEL heating or cooling in a system where the “G” terminal is SWITCH (see Fig. 12) is factory-set in the “F” position. connected. This is the correct setting for most systems. If this system is Fig. 12—T8131 and T8132 back. T8131 THERMOSTAT BACK T8132 THERMOSTAT
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T8131A,B,C; T8132A,B,C INSTALLATION IMPORTANT: Although the thermostat has a low battery indicator, replace the batteries once a year to pre- Fig. 14—Installing position for batteries. vent the thermostat from losing time and program due to lack of battery power. INSTALL TWO AA ALKALINE BATTERIES AS SHOWN Fig. 13—Removing the battery door. M1713 REMOVING BATTERY DOOR MOUNTING THE THERMOSTAT To mount the thermostat on the subbase, engage the tabs M1719C at the top of the thermostat and mounting
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T8131A,B,C; T8132A,B,C PROGRAMMING THE THERMOSTAT Programming the Thermostat T8131A AND T8132A MODELS T8131B AND T8132B MODELS Set Current Time/Day Set Current Time/Day To set time, press and release Set Clock/Day once, then To set time, press and release Clock/Day once, then press Ahead or Back until the current time displays. To set press Time s or t until current time displays. To set day, day, press and release Set Clock/Day again, and then press press and release Clock/Day again, and then p
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T8131A,B,C; T8132A,B,C PROGRAMMING THE THERMOSTAT T8131C AND T8132C MODELS A Quick Guide for Operating or Making Changes Set Current Time/Day To set time, press and release Set Clock/Day once, then NOTE: System switch must be set to Heat or Cool to press Ahead or Back until current time displays. To set perform the following. day, press and release Set Clock/Day again, and then press Ahead or Back until current day displays; then press Run To temporarily change the temperature for the current Pr
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T8131A,B,C; T8132A,B,C CHECKOUT AND SETTINGS Checkout and Settings CHECKOUT After the thermostat is mounted on the subbase, check operation as follows: Model Heating A,C B For T8131 models only, first check that the green power LED is lit, indicating the thermostat is powered properly. Cool Off Heat Do not check heating system operation by jumpering thermostat terminals at the Auto On primary control, such as the gas valve, zone valve, or oil burner control. This will damage the thermostat. Move
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T8131A,B,C; T8132A,B,C CHECKOUT AND SETTINGS • TROUBLESHOOTING SETTINGS AND ADJUSTMENTS Set the Fan and System Switches Auto On First set the fan switch FAN AUTO: Normal setting for most homes. A single-speed fan will turn on automatically with the air conditioner or furnace. A two-speed fan will usually run on high with the air conditioner and on low with the furnace. Auto On FAN ON: The fan runs continuously. Use for improved air circulation during special occasions or for more efficient elect
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T8131A,B,C; T8132A,B,C TROUBLESHOOTING • CROSS REFERENCE Cooling will not come on (Continued). After ten minutes, return switch to COOL position. If air conditioner comes on, compressor may have reached its high limit temperature protection and shut down. If air conditioner does not come on after the ten minutes and the SYSTEM ON indicator is lit, see air conditioner manufacturer instructions. SYSTEM ON indicator is lit, but • Allow time for the furnace to heat up and the fan to come no heat i
