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Manafacture: Honeywell File size: 292.92 kb File name: 43154.pdf Language of manual:

¦ Make sure the System Switch is set to OFF, and the Fan Switch is set to AUTO. ¦ Insert the bottom tab on the thermostat body into the slot at the bottom of the wallplate. Press the top of the thermostat body to snap it into the wallplate. Refer to Figure 6. (NOTE: Do not force the thermostat onto the wallplate, as the terminal pins may be damaged. If it does not snap properly, the thermostat may not work.) ¦ Insert the two AA size alkaline batteries, observing the polarity marked inside the battery compartment. ¦ Switch on the main power at the panel or furnace. Figure 4 Figure 5 Y1 W/B Y/O Rh Rc G Figure 2 Figure 3 G Rc Rh Y/O W/B Y1 x RH Figure 6 Wiring Diagrams 4-wire Heat/Cool System Wallplate Jumper Terminals Fan Relay Cool Contactor Heat Relayor Valve Heat/Cool24V SupplyRhRcGY/OW/BX Y1 X 5-wire Heat/Cool System No JumperWallplate Terminals Fan Relay Cool 24V Supply Heat Relayor Valve Heat 24V Supply RhRcY/OW/BY1GCool Contactor X Single-stage Heat Pump System Jumper X OR Heat Mode Cool Mode Wallplate Terminals RhY/OW/BRcGFan Relay ReversingValve CompressorContactor Y1Heat Pump24V Supply Connect to Proper Reversing Valve Terminal. See Table A 2-wire Heat Only System Wallplate Jumper Terminals GX RhRcXX Y/O W/B X Y1 Heat 24V or Millivolt Supply Heat Relayor Valve 3-wire Heat Only System Jumper XX Wallplate Terminals Fan Relay RhRcY/OW/BY1GHeat 24V Supply X Heat Relayor Valve 3-wire Cool Only System RhRcY/OW/BY1GJumper XX Wallplate Terminals Cool Contactor Cool 24V Supply Fan Relay X X - No Connection System Selector STD– HP System Selector STD– HP System Selector STD– HP System Selector STD– HP System Selector STD– HP System Selector STD– HP Selector Switches In order for this thermostat to control your system, the system type must be specified by the selector switches on the printed circuit board inside the thermostat. ¦ Heating System Selector (HG - HE switch) The factory position for this switch is in the “HG” position. Leave it in this position if you have a gas furnace or an oil burner. If you have an electric furnace, test to see whether the Heat and Fan come on as expected after installation. If the Fan operation is normal, leave it in the “HG” position. If the Fan does not come on within a minute of the thermostat calling for heat, change the switch position to “HE”. The system selector has no effect in the cooling mode. NOTE: “HG” position is for gas and most other systems. “HE” position is for certain electric systems having a fan relay. ¦ System Selector (STANDARD - HEAT PUMP switch) The factory position for this switch is in the STD position. Leave it in this position if you have ANY system that uses gas, oil, electric, or hot water heating. If you have a single-stage Heat Pump (no auxiliary or emergency heat source), then slide the switch to the HP position. Be sure the reversing valve wire is connected to the correct terminal for your heat pump (Y/O) or (W/B). ¦ Auto Recovery selector (DISABLE / ENABLE) Your thermostat is set from the factory with the Auto Recovery Feature enabled, which complies with the EPA ENERGY STAR® Program. If you prefer to use normal recovery, slide the switch to the DISABLE position. STD HP DISABLE ENABLE HG HE Auto Recovery (SW4) System Selector (SW5) Fan Option (SW6) Figure 7 F° / C° Selection (Fahrenheit / Celcius) Your thermostat is set for F° mode from the factory. To change to C° mode, follow these steps: ¦ Press and hold the Up key. ¦ Use a paper clip to press the reset key. ¦ Once all the LCD segments turn on, release the Up key. NOTE: To return to F° mode, press the reset key with a paper clip. Do not press any other keys during the reset process. All programs and settings will be lost when pressing RESET. OPERATION Setting Day and Time ¦ The LCD will show this information when batteries are first installed, or after the Reset button is pressed. The temperature will update after a few seconds. ¦ During time and day setting mode, the temperature and program displays will go blank. ¦ Example: Set the Thermostat to the current time of 2:16 pm on Saturday. Refer to the Steps below. M AM 4 TEMP STEP 1: day/time ¦ Press to enter time and day setting mode. The current hour and the AM / PM indicator will be flashing. ¦ Press to change the Hour up or down to the current hour. Note the AM / PM indicator, as the display will change at 12 AM and 12 PM. M AM (Continued) Setting Day and Time (Continued) STEP 2: day/time ¦ Press again to change from hour setting to minute setting. The current minute will be flashing. ¦ Press to change the Minute up or down to the current minute. M PM STEP 3: day/time ¦ Press again to change from minute setting to day setting. The current day will be flashing. ¦ Press to change the Day up or down to the current day. M PM STEP 4: day/time SA ¦ Press again to change back to the normal display. or PM hold 2 /return TEMP NOTE: You may press hold at any time during Day and Time setting to return to /return the normal display. 12 Hr. / 24 Hr....

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