Aprilaire 8552 owner manual Optional Settings For Additional Thermostat Features

Page 21

Optional Settings For

Additional Thermostat Features

The Model 8552 thermostat is equipped with 3 DIP switches located inside the thermostat on the printed circuit board. These switches are preset by the factory to typical home heating and air conditioning system requirements. The installing contractor also reviewed the settings during installation to be sure the thermostat will operate properly with your heating and air conditioning system.

The DIP switches can however be changed to customize the thermostat’s operation to your particular needs. This should only be done after consulting with your contractor.

The Model 8552 DIP switches control the following functions:

No. 1 – 4 min. / 2 min. Minimum Equipment On/Off Times. This switch is factory preset at 2 minutes. This switch provides short cycle protection for the furnace and air conditioning unit. If you feel that the furnace or air conditioning system turns on and off too many times per hour, ask your contractor about changing the switch to a 4 minute minimum on time. Keep in mind however that this may increase the overall temperature variation in the house due to longer run and off times. DO NOT change the position of this switch without first consulting with your contractor.

– 19 –

Image 21
Contents Model Limited Warranty Case Of Power FailureEnergy Star Program Information Cool = 78˚ Heat = 70˚Heat = 62˚ Cool = 85˚Important Read ALL Instructions Thoroughly Setting Or Changing The ClockPress the Clock button and 00 minutes will Setting Or Changing Weekday Program For Heating Mode Heat = Cool = Program SchedulePress and release Symbol Flashing 12 or someRepeat steps 2-6 to complete programming for the Day event EventSa Su the Morning event symbol flashing Setting Or Changing Weekend Program For Heating ModeHeating mode as applicable Programming for Morning DaySetting Cooling Temperatures Night Press and release the Program button Mo TuReviewing Programmed Time Schedules Temperature Settings To Start Running The ProgramNight events Thermostat Operation For Best PerformancePage Return to the program Temperature Control Time Control Equipment Control Page Optional Settings For Additional Thermostat Features Automatically returns to the original program Installing contractorSized flathead screwdriver Into the latch access slotSee Figure Page Turn the thermostat power back on Cleaning Case Of Power FailureLimited Warranty Page Page Page Zone Control System Electronic Thermostat