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Aprilaire 8620, Owner'S Manual

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Aprilaire 8620 Owner'S Manual Download Page 10

18

19

INDOOR AIR QUAlITy fUNCTIONS

Humidity Control Screen with only Dehumidification Installed

HUMIDITy CONTROl 

(CONTINUED)

DEHUMIDIfICATIon sETPoInT

DEHUMIDIfIEr ADJUsTMEnT

DONE BUTTON 

(EXIT HUMIDITy ConTroL)

INDOOR AIR QUAlITy fUNCTIONS

HUMIDITy CONTROl 

(CONTINUED)

If dehumidification is done with the air conditioner

, the thermostat will cool up to 3°f beyond the cooling 

setpoint for dehumidification. note overcooling may not be sufficient to meet the dehumidification setpoint.

Summary of Contents for 8620

Page 1: ...Model 8620 Thermostat with Event Based Air Cleaning and Humidity or Ventilation Control READ AND SAVE THESE INSTRUCTIONS Owner s Manual Includes Operating Instructions and Warranty Information ...

Page 2: ...entilation whole home dehumidifier or humidifier Temperature control Heat Blast raises the room temperature 3 F to 5 F Large touch screen with adjustable backlight constant backlight available Message center provides feedback instructions and service reminders 7 day programmability or separately programmable weekday weekend schedules User interface can be removed from the wall for easy programming...

Page 3: ...STMENT Air Cleaning Button Enters EVENT BASED Air Cleaning Control Screen Humidity Control Button Enters Humidity Control Screen Fresh Air Button Enters Ventilation Control Screen HOLD BUTTON SETS OR CLEARS HOLD HEAT PUMP ONLY Emergency heat or AUXILIARY HEAT RED System FAULT YELLOW IndicatorS show through housing EQUIPMENT STATUS MESSAGE CENTER SCROLLING TEXT ROOM TEMPERATURE Current DAY TEMPERAT...

Page 4: ...nt Press MENU to enter the main menu Press CLEAN SCREEN to disable the touch screen for 30 seconds for cleaning Note Use a soft damp cloth to clean the screen Use water or household glass cleaner Do not spray liquids directly on the screen Clean Screen Select fan setting ON AUTO CIRC Press FAN to select ON Fan runs continuously Use this mode for maximum air circulation filtering AUTO Fan runs only...

Page 5: ...an disable certain features of the thermostat See User System Setting Table on pages 32 33 for details This feature can be overridden by pressing and holding MENU for 7 seconds Operation The thermostat can be battery powered AC powered or both When wired for AC power the batteries are optional and only provide back up power to the clock The thermostat has a memory backup that saves the thermostat ...

Page 6: ... if 30 minutes is not reached the air cleaner will automatically turn on This will maximize the amount of air cleaning while minimizing energy consumption Event Clean 3 hour cycle When selected the air cleaner will run for 3 hours continuously and then return to the most recent mode of Off Automatic or Constant Clean This option only cleans the air when needed an example would be after vacuuming A...

Page 7: ... on the outdoor temperature The humidity setting needs to be set initially to meet your home s conditions Please follow these steps when adjusting your thermostat 1 Adjust the humidity setting to 3 which is within normal range During the next 24 48 hours it may be necessary to adjust the setting for more or less humidity depending on your personal comfort and home s requirements 2 During the colde...

Page 8: ...umidity setting Outdoor Temperature Indoor Relative Humidity Outside Temperature Recommended Relative Humidity 50 F 50 40 F 45 30 F 40 20 F 35 10 F 30 0 F 25 10 F 20 20 F 15 indoor air quality Functions Humidity Control Screen for Humidification in Manual Mode Humidity Control continued Humidification Setpoint Humidifier Adjustment MANUAL MODE SCREEN Cycles recommended Humidification Setpoints for...

Page 9: ...he home acts like a sponge so the moisture in the materials of your home is at the same level as the air After drying the air the materials of the home will release the moisture back into the air until they are again at the same level As a result it is not uncommon for dehumidification to operate for an extended period of time when it is first installed indoor air quality Functions Humidity Contro...

Page 10: ...on Setpoint Dehumidifier Adjustment Done Button Exit Humidity Control indoor air quality Functions Humidity Control continued If dehumidification is done with the air conditioner the thermostat will cool up to 3 F beyond the cooling setpoint for dehumidification Note overcooling may not be sufficient to meet the dehumidification setpoint ...

Page 11: ...Automatic depending on which was mode was most recently active This option is used when fresh air is needed An example would be after cooking 24 Hour Event Ventilation will be constantly energized for 24 hours and then the fresh air mode will return to Off or Automatic depending on which was mode was most recently active This option is used when a large amount of fresh air is desired An example wo...

Page 12: ...e up to LEAVE temperature when you are away from the house RETURN temperature you would prefer to return home to SLEEP temperature you would prefer while sleeping The times shown in the table below are the defaults The start time and temperature of each section can be changed to fit your schedule See Changing Program Schedules section on pages 25 26 This thermostat is pre set to use the following ...

Page 13: ...ery feature allows the thermostat to activate the heating and cooling equipment PRIOR to a scheduled event in order to reach the desired temperature at the start of that scheduled event Example If the WAKE time is 6 am and the temperature is 70 the heat will come on before 6 am so the temperature is 70 by the time you wake at 6 am Program Schedule and Holds Press Next then or to set the start time...

Page 14: ...e process Program Schedule and Holds Temporary program hold Press or to immediately adjust the temperature when the schedule is running This will temporarily hold the temperature setting until the next scheduled event Program schedule holds temporary Heat Blast will raise the current room temperature 3 F to 5 F based on the installer set up and then resume normal operation Press Heat Blast to acti...

Page 15: ...D Program schedule holds temporary continued Vacation program hold This energy saving feature allows you to suspend the programmed schedule for extended periods of time The temperature and dehumidification setpoint optional you select will be maintained 24 hours a day until the vacation program hold end date and time Once the end date and time have been surpassed the previously programmed schedule...

Page 16: ...Next then FAN to set the fan mode SETUP MENU How to enter the setup menu to change settings Press MENU to enter the main menu Press SETUP to enter the setup menu Press or to adjust the setting Selected option flashes Press DONE to save and exit Or CANCEL to exit without saving The thermostat will discard changes and exit if nothing is pressed within 60 seconds Press Next or Back to page through th...

Page 17: ...egrees Max Dehum Setpoint Change in Lockout Select dehumidification setpoint limits only available when screen lockout is set to partial 5 percent Relative Humidity 0 to 15 percent Relative Humidity Events per day Number of program events per day 4 events per day 2 events per day User system settings table continued SETUP MENU User system setting Description Factory default setting bold and settin...

Page 18: ...L NOT APPLY TO DEFECTS IN WORKMANSHIP OR MATERIALS FURNISHED BY YOUR INSTALLER AS CONTRASTED TO DEFECTS IN THE THERMOSTAT ITSELF IMPLIED WARRANTIES OF MERCHANTABILITY OF FITNESS FOR A PARTICULAR PURPOSE SHALL BE LIMITED IN DURATION TO THE AFORESAID FIVE YEAR PERIOD RESEARCH PRODUCTS CORPORATION S LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES OTHER THAN DAMAGES FOR PERSONAL INJURIES RESULTING F...

Page 19: ... Madison WI 53701 1467 Phone 800 334 6011 Fax 608 257 4357 www aprilaire com 10009856 4 12 B2205747B U S Patent Number 8 146 376 and other patents pending 2012 Aprilaire A division of Research Products Corporation ...

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