Page 2 - Read this manual to learn how to use your new thermostat.; Recycling Notice; This control contains mercury in a sealed tube. Do; place control in the trash at the end of; not; place your
2 69-0563—2 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 ...
Page 3 - Table Of Contents; PAGE
3 69-0563—2 Table Of Contents PAGE Features Of Your Thermostat ........................................................................................................... 4 Setting The Temperature ..........................................................................................................
Page 4 - Features Of Your Thermostat
4 69-0563—2 8 PROGRAM INDEX WHEEL. Controls highand low temperature at specific time ofday as set by program pins. 9 PROGRAM PINS. Must be inserted into24-hour timer dial slots to control programindex wheel. 2 4 1 3 M8723 Features Of Your Thermostat 1 FLIP-UP COVER. Lift it up to set timer forenergy...
Page 7 - Setting The Temperature; For Heating; Set the left lever (blue mark) to the energy; For Cooling; ture you want for normal comfort periods.; Fig. 1—Setting high and low
7 69-0563—2 Setting The Temperature For Heating Set the left lever (blue mark) to the energy savings temperature you want when you aresleeping or your home is unoccupied. Set the right lever (red mark) to the tem- perature you want for normal comfort periods. NOTE: You may override the time program ...
Page 9 - Power is supplied to the timer by the 24 Vac
9 69-0563—2 Inserting Timer Batteries(Optional) Power is supplied to the timer by the 24 Vac transformer. Two AAA alkaline backup batter-ies (not included) may be installed to supplypower to the timer if power is interrupted due topower failure. Install the batteries in thethermostat as shown in Fig...
Page 10 - Setting The Timer; Lift thermostat flip-up cover and you will find; When time is correctly set, the Time; Daylight Savings Time; reverse
10 69-0563—2 Setting The Timer Lift thermostat flip-up cover and you will find the 24-hour program dial, slotted in 10-minuteincrements. Adjust the timer to the current timeby carefully turning the knob clockwise Do not reverse the knob. When time is correctly set, the Time Indicator Arrow (See Fig....
Page 11 - Programming; You can program your thermostat to; Before Setting Your Program; Lift thermostat flip-up cover and you’ll find
11 69-0563—2 Programming You can program your thermostat to automatically lower and raise the temperatureone or more times every 24 hours. Before Setting Your Program Lift thermostat flip-up cover and you’ll find the 24-hour program dial. The slots on theprogram dial (Fig. 4) are for the program pin...
Page 12 - To change the pins or add a new energy; attempt; Setting the Heating Program; Decide when you want the temperature to; ed
12 69-0563—2 To change the pins or add a new energy savings period—• To insert a pin, push it straight into theselected notch on the program dial until it’scompletely seated. • To remove a pin, press against program dialand pull the pin straight out. Do not attempt to change a pin if it is engaged w...
Page 13 - Setting the Cooling Program; blue
13 69-0563—2 Decide when you want the energy savings period to start and insert a blue pin at the notch that corresponds to this time. After the blue pinengages, the furnace will be off until roomtemperature drops to the energy savingssetpoint. You can set both a day and night program. See Fig. 5. f...
Page 14 - Troubleshooting; traced to the following:
14 69-0563—2 Troubleshooting Your Honeywell thermostat requires little or no attention. Most problems can generally be traced to the following: (continued) 1 Problem Check Action No heat. — system switch. May be in OFF or COOL position. Move system switch to HEAT position. — fuse or circuit breaker....
Page 19 - Not applicable on model used in heating-only system.
19 69-0563—2 Troubleshooting (continued) Problem Check Action Thermostat settingand thermometer. — level position of thermostat. Reinstall thermostat subbase. Use a spiritlevel. reading disagree. — area around thermostat for drafts or radiant heat. Thermostat should be about 5 ft (1.5m) abovefloor o...
Page 20 - Voltage at Timer Terminals; Ac Voltage at
20 69-0563—2 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 pow...
Page 21 - Servicing The Thermostat; Thermometer Adjustment
21 69-0563—2 Servicing The Thermostat Thermometer Adjustment The thermometer has been accurately calibrated at the factory and should onlyneed adjustment if it has been dropped ormishandled. If the setpoint lever and the thermostat reading do not agree, follow the procedurebelow. Remove thermostat c...
Page 23 - Limited One-Year Warranty
23 69-0563—2 Limited One-Year Warranty Honeywell warrants this product to be free from defects in the workmanship or materials, under normal use and service, for a period of one (1) year from the date of purchase by the consumer. If, at any time during the warranty period, the product is defective o...