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Heating/Cooling
Thermostat and Subbase or
Heating or Cooling Thermostat
and Wallplate
T8195A,B/Q682
OWNER’S MANUAL
69-0563-2
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Welcome to the world of energy savings with your new Honeywell thermostat. The Honeywell name is your assurance of accurate control and reliable operation for years to come. This thermostat meets California Title 24 requirements—mandatory installation of automatic setback thermostats in new heating and cooling systems. During heating and cooling, this thermostat will automatically lower and raise the temperature in your home one or more times every 24 hours. This allows you to significantly lowe
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Table Of Contents PAGE Features Of Your Thermostat........................................................................................................... 4 Setting The Temperature ................................................................................................................. 7 Setting Subbase Switches ................................................................................................................ 8 Inserting Timer Backup Batteries ...........................
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8 PROGRAM INDEX WHEEL. Controls high Features Of Your Thermostat and low temperature at specific time of 1 FLIP-UP COVER. Lift it up to set timer for day as set by program pins. energy savings and comfort temperature 9 PROGRAM PINS. Must be inserted into periods. 24-hour timer dial slots to control program 2 THERMOSTAT COVER. Lift up to adjust index wheel. timer. 4 3 THERMOMETER. Provides accurate room 2 1 temperature reading. 4 TEMPERATURE SETTING LEVERS. Left (blue mark) controls the low tempe
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9 5 6 11 12 M8744 M8745 7 10 8 10 PIN SLOTS. Located on 24-hour dial at 12 WALLPLATE. Provides mounting base 10-minute intervals for program pin and wiring connections for heating or insertion. cooling thermostat without system or fan 11 MERCURY BULB AND BIMETAL ELEMENT switching. (2). Provide automatic temperature control by switching the heating or cooling system on and off. 5 69-0563—2
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13 Q682 SUBBASE. Provides mounting base, wiring connections and manual switching O control for heating/cooling thermostat. B R W G Y 13 FAN COOL ON AUTO HEAT OFF M1551 6 69-0563—2
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Setting The Temperature For Heating Set the left lever (blue mark) to the energy savings temperature you want when you are HIGH LOW TEMPERATURE TEMPERATURE sleeping or your home is unoccupied. SETTING LEVER SETTING Set the right lever (red mark) to the tem- LEVER perature you want for normal comfort periods. 50 60 70 80 NOTE: You may override the time program by setting both the red and blue levers to the 50 60 70 80 same temperature setpoint. For Cooling Set the left lever (blue mark) to
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Setting Subbase Switches The subbase fan switch controls fan operation as follows: (if applicable) ON—Fan operates continuously. The subbase system switch controls system AUTO—Fan operates with cooling equipment operation as follows: as contolled by the thermostat or with the HEAT—Heating system is controlled by the heating equipment as controlled by the thermostat. Cooling system is Off. thermostat in heating and cooling. COOL—Cooling system is controlled by the thermostat. Heating system is Of
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BATTERY LOCATION FOR Inserting Timer Batteries (2) AAA BATTERIES; INSTALL WITH POSITIVE ENDS UP (Optional) Power is supplied to the timer by the 24 Vac transformer. Two AAA alkaline backup batter- ies (not included) may be installed to supply power to the timer if power is interrupted due to power failure. Install the batteries in the thermostat as shown in Fig. 2. Once a year or when batteries are dead, replace with two new AAA alkaline batteries. We recommend Energizer® batteries. M8585 Fig. 2
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PROGRAM DIAL Setting The Timer Lift thermostat flip-up cover and you will find PROGRAM PIN (6) the 24-hour program dial, slotted in 10-minute TIMER increments. Adjust the timer to the current time SETTING by carefully turning the knob clockwise Do KNOB not reverse the knob. When time is correctly set, the Time TIME Indicator Arrow (See Fig. 3) will point to the INDICATOR ARROW correct time and corresponding daytime (light) or nighttime (dark) band of the program dial. EXAMPLE: For 11 p.m
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pin storage area. You can set up to six tempera- Programming ture changes with the pins supplied. We You can program your thermostat to recommend at least five hours for each energy automatically lower and raise the temperature savings period. one or more times every 24 hours. 24-HOUR PROGRAM DIAL (GRAY AREA FOR NIGHT SETTINGS) Before Setting Your Program FLIP-UP Lift thermostat flip-up cover and you’ll find COVER the 24-hour program dial. The slots on the program dial (Fig. 4) are for the progr
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To change the pins or add a new energy program dial that’s one-half hour before this savings period— time and insert a red pin. The half-hour head • To insert a pin, push it straight into the start gives the furnace time to heat the house selected notch on the program dial until it’s before you wake up or arrive home. completely seated. • To remove a pin, press against program dial and pull the pin straight out. Do not attempt to change a pin if it is engaged with the program index wheel. WINTER
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Decide when you want the energy savings Setting the Cooling Program period to start and insert a blue pin at the notch Decide when you want the temperature to that corresponds to this time. After the blue pin reach the comfort level. Find the notch on the engages, the furnace will be off until room program dial that’s one-half hour before this temperature drops to the energy savings time and insert a blue pin. The half-hour head setpoint. start gives the air conditioner time to cool the You can
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Troubleshooting Your Honeywell thermostat requires little or no attention. Most problems can generally be traced to the following: Problem Check Action No heat. — system switch. May be in OFF Move system switch to HEAT position. or COOL position. 1 — fuse or circuit breaker. If blown or tripped, replace fuse or reset breaker. — furnace power switch. May be Move switch to ON. Off. — pilot flame. May be out. Relight pilot flame per furnace manufacturers instructions. —R and W thermostat Turn Of
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Troubleshooting (continued) Problem Check Action No heat (continued). — other problem. Contact a qualified service technician for assistance. Energy savings — program dial for proper day or Turn timer ahead 12 hours. Move setting knob temperature program night phase. clockwise only. 12 hours off. Rooms do not warm — timer program for heating Move red pin one-half hour earlier on the up at programmed system. May need more time to program dial. time. warm up rooms. 2 Temperature change —
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Troubleshooting (continued) Problem Check Action Room temperatures — thermostat circuits. HEATING-ONLY SYSTEM—Move temp- are not correct erature setting levers 5°F (3°C) above room (continued). temperature. Heating system should start. If the system does not operate, call a qualified service technician. COOLING-ONLY SYSTEM—Move temp- erature setting levers 5°F (3°C) below room temperature. Cooling system should start. If the system does not operate, call a qualified service technician. HEATING/C
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Troubleshooting (continued) Problem Check Action No cooling. 1 — system switch. May be in OFF Move switch to COOL position. or HEAT position. — fuse or circuit breaker. If fuse is blown or breaker tripped, replace or reset. — condenser switch position. Move to ON position. Located outdoors and may be turned OFF. —Y and R thermostat Turn Off power to cooling system. Check for connections. correct terminal hookups. Repair any frayed or broken wires. Firmly tighten all terminal screws. — other C
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Troubleshooting (continued) Problem Check Action Timer is losing time — high limit control. If clock Wire separate transformer to power clock. (continued). powered through system trans- former, power to clock and equipment may be Off on safety. — filter. May be clogged. Safety Replace filter and reset clock. limit on equipment may cut off power to system. Timer does not run. — voltage across the C and R Remove the thermostat from the wallplate or terminals. subbase, and measure the voltage. Refe
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Troubleshooting (continued) Problem Check Action — level position of thermostat. Reinstall thermostat subbase. Use a spirit Thermostat setting level. and thermometer. reading disagree. — area around thermostat for Thermostat should be about 5 ft (1.5m) above drafts or radiant heat. floor on an inside wall. Contact qualified service technician for change of location. 1 Not applicable on model used in heating-only system. 2 Not applicable on model used in cooling-only system. If this Troubleshoot
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Voltage at Timer Terminals Ac Voltage at C-R Terminals Possible Cause Check Action 0 Vac 1. System power is Off. 1. Restore power. 2. Short in timer power supply wiring. 2. Replace wiring. 3. Limit switch contacts stuck open. 3. Free or replace limit switch. 4. Transformer supplying power is 4. Replace transformer. burned out. Up to 15 Vac. 1. System transformer used to power 1. Use additional (separate) the timer is inadequate. transformer. 2. Additional (separate) transformer 2. Install transf
