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Aprilaire 8555, Owner'S Manual

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Aprilaire 8555 Owner'S Manual Download Page 9

– 7 –

PROGRAM SCHEDULE

TIME SCHEDULE

THERMOSTAT DESIRED 

EVENT

SYMBOL

TEMPERATURE Mon

Tue

Wed

Thu

Fri

Sat

Sun

SETTING

Morning

Heat =

Cool =

Day

Heat =

Cool =

Evening

Heat =

Cool =

Night

Heat =

Cool =

NOTE:  

While programming you must press a button at least every 2 minutes or the thermostat will revert back to the

operational mode. If this happens, simply repeatedly press or press and hold the 

PROGRAM 

button until you get back

to where you left off. The information you have already entered has been retained. 

NOTE:  

If consecutive events have the same temperature, you can skip an event by simultaneously pressing the

PROGRAM

and 

MODE

buttons. Press and release the 

PROGRAM

button to advance to the next event.

110-793B  7/11/01  3:29 PM  Page 9

Summary of Contents for 8555

Page 1: ...Owner s Manual MODEL 8555 7 Day Programmable Thermostat ELECTRONIC THERMOSTAT 110 793B 7 11 01 3 29 PM Page 1 ...

Page 2: ...ooling 11 Reviewing Programmed Time Schedules And Temperature Settings 13 To Start Running The Program 13 For Best Performance 14 Thermostat Operation 14 Temperature Control 16 Time Control 17 Equipment Control 18 Optional Settings For Additional Thermostat Features 20 Setting High And Low Balance Points 28 Using Available LED Indicators 29 In Case Of Power Failure 30 Cleaning 30 Limited Warranty ...

Page 3: ...n similar products that do not qualify for the ENERGY STAR label ENERGY STAR products help you differentiate between standard efficiency and high efficiency products By using ENERGY STAR products you are helping to prevent air pollution while saving money on your utility bills According to the EPA taking advantage of the times that a home is unoccupied or the occupants are asleep an ENERGY STAR th...

Page 4: ...IME SCHEDULE THERMOSTAT DESIRED EVENT SYMBOL TEMPERATURE Mon Tue Wed Thu Fri Sat Sun SETTING Morning Heat 70 6 00 6 00 6 00 6 00 6 00 6 00 6 00 Cool 78 am am am am am am am Day Heat 62 8 00 8 00 8 00 8 00 8 00 8 00 8 00 Cool 85 am am am am am am am Evening Heat 70 5 00 5 00 5 00 5 00 5 00 5 00 5 00 Cool 78 pm pm pm pm pm pm pm Night Heat 62 10 00 10 00 10 00 10 00 10 00 10 00 10 00 Cool 82 pm pm p...

Page 5: ...s setting the clock setting the event times and setting your desired temperatures Setting Or Changing The Clock Step 1 Press the CLOCK button and Mo or another day of the week will flash Use the DECREASE or INCREASE button to change the flashing symbol to the current day of week 110 793B 7 11 01 3 29 PM Page 5 ...

Page 6: ...e current hour making sure the hour has the proper AM or PM designation Step 3 Press the CLOCK button and 00 minutes will flash Use the DECREASE or INCREASE button to change the flashing symbol to the current minute Step 4 Press the CLOCK button again The clock is now set and the current time appears on the display 110 793B 7 11 01 3 29 PM Page 6 ...

Page 7: ...st 2 degrees higher than the heating temperature Your Aprilaire Thermostat allows a different program for each day of the week Complete the chart on page 7 with your desired temperatures and time schedules before beginning programming Progressive Recovery Your Aprilaire Thermostat is equipped with a programming feature called Progressive Recovery This feature assures that your house will economica...

Page 8: ...ore the actual time you want your home to reach the desired temperature For example if you get up at 7 00 AM and have a 6 degree setback set your Morning event at 6 00 AM to be sure the desired temperature is reached by 7 00 AM NOTE This thermostat can be programmed with either 2 events per day day and night or 4 events per day morning day evening and night Before programming the thermostat decide...

Page 9: ...e thermostat will revert back to the operational mode If this happens simply repeatedly press or press and hold the PROGRAM button until you get back to where you left off The information you have already entered has been retained NOTE If consecutive events have the same temperature you can skip an event by simultaneously pressing the PROGRAM and MODE buttons Press and release the PROGRAM button t...

Page 10: ... the DECREASE button or INCREASE button to access the day of the week you wish to start programming or to change the existing program Step 2 Press and release the PROGRAM button The hours and AM or PM will flash Press the DECREASE button or INCREASE button to set the start time hours for the Morning event for Monday or any other day as set in step 1 8 110 793B 7 11 01 3 29 PM Page 10 ...

Page 11: ... steps 2 and 3 for the Day Evening and Night Step 5 Press and release the PROGRAM button The word Copy and the day just programmed will appear on the display If your schedule is the same for consecutive days press the DECREASE button or INCREASE button to add days to the display This prevents from having to program the same times over and over again or continue on to step 6 to program the next day...

Page 12: ...vent symbol appear on the display Step 2 To set all program temperatures press and release the SET TEMP button The Morning event symbol and flashing temperature will appear on the display Step 3 Press the DECREASE button or INCREASE button to set the desired Morning event temperature 10 110 793B 7 11 01 3 29 PM Page 12 ...

Page 13: ...atures NOTE Cooling temperatures must be set at least 2 degrees higher than heating temperatures Example If heating temperature is set at 70 F cooling temperature must be set to at least 72 F or higher If not set at least 2 degrees higher the thermostat will automatically lower the previously programmed heating temperature to maintain the 2 degree separation 11 110 793B 7 11 01 3 29 PM Page 13 ...

Page 14: ...utton The Morning event symbol and flashing temperature will appear on the display Step 3 Press the DECREASE button or INCREASE button to set the desired morning event temperature Step 4 Repeat steps 2 and 3 for the Day Evening and Night events NOTE If thermostat is set for 2 events per day only the Day and Night events can be programmed 12 110 793B 7 11 01 3 29 PM Page 14 ...

Page 15: ...e time schedules and temperature settings for each desired event To review a specific day use the DECREASE button or INCREASE button to access the day without having to view previous programmed days To Start Running The Program After all temperatures and start times have been programmed press and release the RESUME button to start running programs If no button is pressed thermostat will resume aut...

Page 16: ...thermostat 3 Although the thermostat is internally equipped to prevent short cycling of the furnace and air conditioner it is possible to inadvertently override this protection Do not start stop and restart the equipment without allowing a minimum of 2 minutes between heating or cooling cycles Thermostat Operation The Model 8555 is a full featured thermostat which allows for additional control and...

Page 17: ... 15 Aprilaire Model 8555 7 Day Programmable Thermostat 110 793B 7 11 01 3 29 PM Page 17 ...

Page 18: ... degree increments The new set point temperature will be held for 3 hours then the thermostat will automatically return to the program Hold a New Temperature Set Point Press and hold the DECREASE button or INCREASE button to change the room set point temperature in 1 degree steps The new set point temperature can be maintained indefinitely by pressing and releasing the HOLD button The word HOLD wi...

Page 19: ...multaneously pressing the DECREASE button and the INCREASE button Checking the Outdoor Temperature If your thermostat was installed with the optional Aprilaire Outdoor Temperature Sensor simply press the OUTDOOR button and the thermostat will display the outdoor temperature for 5 seconds before automatically returning to the actual room temperature display TIME CONTROL Change From 12 to 24 Hour Cl...

Page 20: ...circulate air in the home Selecting Cooling Mode Press the MODE button until the word COOL appears on the display In this mode the heat pump will maintain temperature according to the programming previously completed unless an override temperature has been entered Note that a Snowflake icon is on the display which flashes when the heat pump is running Your thermostat will automatically turn on and...

Page 21: ...ernoon requiring cooling Press and release the MODE button until the word AUTO appears on the display In this mode the heat pump will maintain temperature according to the programming previously completed unless an override temperature has been entered The heat pump will operate in either the heating or cooling mode depending on which programmed set point is closest to the room temperature Note th...

Page 22: ...switches are preset by the factory to typical home heating and cooling system requirements The installing contractor also reviewed the settings during installation to be sure the thermostat will operate properly with your heating and cooling 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...

Page 23: ...at 2 minutes This switch provides short cycle protection for the heat pump If you feel that the heat pump 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 the switch without first...

Page 24: ... is an add on heat pump configuration your contractor changed the position of this switch to match your equipment Do not change the position of this switch as it could result in extraordinarily high operation costs No 6 Single Multi Stage Outputs This switch is factory preset to the ON position allowing the thermostat to operate 2 stage heat pumps Do not change the position of this switch without ...

Page 25: ...ee LED 2 with LCD Wrench Symbol When moved to the ON position this switch turns on a Wrench icon on the display screen when a 24 volt signal is sent to LED 2 top right edge of the thermostat panel not on the display This feature is beneficial if your heating cooling system has the required controls for automatically signaling when a particular problem exists Consult your contractor for further inf...

Page 26: ...o your thermostat do not attempt to access the DIP switches The following procedure must be carefully followed a Turn off power to the thermostat b Completely open the thermostat cover The cover will snap into this position c Carefully insert a medium sized flathead screwdriver into the latch access slot see Figure 1 Figure 1 CAUTION TO PREVENT DAMAGE AVOID CONTACT WITH BLUE TEMPERATURE SENSOR ON ...

Page 27: ...ver until the lock tab disengages from the catch tab you should feel or hear a click see Figure 2 e After the latch releases grip the thermostat panel at the bottom corners and swing it up and away from the base to completely separate see Figure 3 110 793B 7 11 01 3 29 PM Page 27 ...

Page 28: ...n given at the beginning of this section After the DIP switches have been set to the desired position carefully reassemble the thermostat a Place the cover on the base by lining up the 2 round pegs on the bottom of the cover with the half circle cutouts on the top of the base Note that the bottom of the cover when fully open slides in behind the top of the base Swing the cover fully open The cover...

Page 29: ... panel to the base and snap in place at bottom of thermostat panel see Figure 4 c Turn the thermostat power back on CAUTION TO PREVENT DAMAGE AVOID CONTACT WITH BLUE TEMPERATURE SENSOR ON BOTTOM RIGHT HAND CORNER OF THERMOSTAT CIRCUIT BOARD 27 110 793B 7 11 01 3 29 PM Page 29 ...

Page 30: ...e of backup heat with the heat pump during mild weather could use more energy than is required to heat the home To review the set points press and hold the OUTDOOR button and press FAN button Hi bP and its temperature value will appear on the display Next press the OUTDOOR button again and Lo bP and its temperature value will appear on the display After approximately 15 seconds the display will re...

Page 31: ...ckup heat source is being used When the left and or right LED is supplied with a 24 VAC signal the LEDs glow red and can be used to indicate many other system functions such as when the humidifier or fresh air exchanger is running Contact your installing contractor to understand what the left and or right LEDs signal Use of left and right LEDs will require equipment and additional wiring at the th...

Page 32: ...h of the power outage If the thermostat has been set to Hold a particular temperature and the power fails the thermostat will maintain the hold temperature when the power is restored After a period of 1 hour without power the clock will need to be reset The clock will default to 12 00 AM Refer to the Programming Instructions to reset the clock Cleaning If the surface of the thermostat becomes dirt...

Page 33: ...ITSELF IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE SHALL BE LIMITED IN DURATION TO THE AFORESAID TWO YEAR PERIOD RESEARCH PRODUCTS CORPORATION S LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES OTHER THAN DAMAGES FOR PERSONAL INJURIES RESULTING FROM ANY BREACH OF THE AFORESAID IMPLIED WARRANTIES OR THE ABOVE LIMITED WARRANTY IS EXPRESSLY EXCLUDED THIS LIMITED WARRANT...

Page 34: ... 32 Notes 110 793B 7 11 01 3 29 PM Page 34 ...

Page 35: ... 33 Notes 110 793B 7 11 01 3 29 PM Page 35 ...

Page 36: ...midifier The Best Cure For Dryness The world s first computer equipped completely automatic humidifier High Efficiency Air Cleaner Nobody Makes Clean Air Easier The economical trouble free high efficiency air cleaner for your home Fresh Air Exchanger OnlyThe Freshest Homes Have AprilAir Your best value for a constant controlled supply of fresh air with energy recovery Zone Control System Custom Co...

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