To connect the 8820 thermostats to a Wi-Fi network follow the steps below.
Note: You will need a computer or mobile device with Wi-Fi and a web browser.
Thermostat should be mounted:
Do not mount thermostat:
Outdoor temperature can be measured by attaching the included 8052 sensor to the S1 and S2 terminals. The outdoor sensor must be enabled in the installer setup menu.
Heat pump models can use the outdoor temperature to effectively utilize the heat pump:
Indoor Air Quality functions can use the outdoor temperature sensor to:
Outdoor temperature sensor should be mounted:
A remote temperature sensor can be used for control if the thermostat is to be mounted in a concealed location or a remote sensor can be averaged with the thermostat sensor to control a large space. An 8051 flush mount or 8053 surface mount remote temperature sensor can be attached to the T1 and T2 terminals and mounted in a recommended area. The remote sensor must be enabled in the installer setup menu, and once enabled will override or be averaged with the thermostat’s internal temperature sensor, based on the setting.
Remote temperature sensor should be mounted:
Do not mount remote sensor:
The thermostat is powered from 24VAC. In the case of power loss the thermostat will maintain the clock for 24 hours. The thermostat has a memory backup that saves the thermostat settings in case of power interruption. The reset button located under the cover on the front of the thermostat can be used to reset the thermostat to factory defaults. The Installer System Settings will also be set to the default settings.
Wire specifications: 18-24 gauge thermostat wire
Installation notes:
Note: The I1/I2 output is a dry contact closure. The humidifier wiring diagram assumes the control is powering a solenoid valve. The dehumidifier wiring diagram is for a normally open dry contact input. The ventilation diagram assumes the control is for a normally closed damper. Refer to the individual humidifier, dehumidifier or ventilation installation instructions for product-specific wiring details.
Note: Up to four Support Modules can be wired to the thermostat. Support Modules should be wired with CAT-5 wire. The total length of wire for all support modules should not exceed 1000 feet
This thermostat has the option of being used in heat pump or heat/cool systems. Switch SW1 located on the back of the thermostat’s face is used to select this option. This setting is displayed in the Installer System Settings under Equipment Type.
HOW TO ENTER THE INSTALLER SETUP MENU AND SELECT EQUIPMENT TO SETUP:
In the Installer Setup menu, Thermostat or Indoor Air Quality (IAQ) setup can be selected. If IAQ setup is selected, the user can then select to set up Air Cleaning, Humidification, Dehumidification or Ventilation.
Press [NEXT] or [BACK] to page through the settings.
Press
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.
To reset the Installer System Settings to the default settings, reset the thermostat by pressing the [RESET] button for 5 seconds
The following table contains the system settings and their details. Default settings are shown in bold. Some settings are only available dependent upon the value of other settings.
System setting | Description | Factory default setting (bold) and setting range |
00 . Automation Enable | Selects if the thermostat connects with an automation system or an Aprilaire account . | 0: Aprilaire Cloud 1: Automation System |
01 . Equipment Type | Equipment type set by SW1 . | Heat/Cool Heat Pump |
02 . Temperature Scale | Set the thermostat to Fahrenheit or Celsius mode . | Fahrenheit Celsius |
03 . Reversing Valve | Selects O or B operation . | O – On in cooling B – On in heating |
04 . Control Setup | Used to lockout heating or cooling outputs . Note: Only available if Equipment Type is set to Heat/Cool . | Heat and Cool Heat Only Cool Only |
05 . Heat/Cool: Cooling Stages Heat Pump: Compressor Stages | Heat/Cool: Number of Cooling Stages . Heat Pump: Number of Compressor Stages . | One Two |
06 . Heat/Cool: Heating Stages Heat Pump: Aux Heat Stages | Heat/Cool: Number of Heat Stages . Heat Pump: Number of Auxiliary Heat Stages . | One Two |
07 . Heat/Cool: Fan Control in Heating Heat Pump: Auxiliary Equipment Type | Heat/Cool: Determines if the thermostat or equipment controls the fan in heating . Heat Pump: Auxiliary Equipment type . | Gas/Oil Heat (equipment controls fan) Electric Heat (thermostat controls fan) |
08 . Extended Fan – Heat | Extends fan operation after heat call ends . | Disable Enable (90 second extension) |
09 . Extended Fan – Cool | Extends fan operation after cool call ends . | Disable Enable (90 second extension) |
10 . Temperature Sensor Offset | Field adjustment of controlling temperature sensor(s) . | 0° (no offset applied) -4°F to +4°F (-2°C to +2°C) |
11 . Humidity Offset | Field adjustment of internal RH sensor . | 0 (no offset applied) -5% to +5% |
12 . Auto Changeover | Enable or disable Auto Changeover mode . | Disable Enable |
13 . Deadband | Auto Changeover mode deadband . | 3°F (1.5°C) 2°F to 9°F (1°C to 4 .5°C) |
14 . Remote Sensor | Select if remote sensor is attached, and if it is attached, if it is the primary control or averaged with the built-in sensor . If the remote sensor is the primary control it can be configured to use the built-in sensor as a back-up sensor . | Not installed Control no backup Control with built-in backup Average with thermostat built-in sensor |
15 . Outdoor Sensor | Selects if an outdoor temperature sensor is not installed, a wired sensor is installed, or the outdoor temperature is provided by the automation system . Note: Automation is only available if Automation Enable is set to Automation System . | Not installed Installed Automation |
18 . Compressor Min Off Time | Minimum off time for compressor protection . | 5 minutes 1 to 5 minutes |
19 . Heating Min Off Time | Minimum off time for heating . | 2 minutes 1 to 5 minutes |
20 . Equipment Min On Time | Minimum on time for heating and cooling . | 2 minutes 1 to 5 minutes |
21 . Auto Changeover Time | Minimum time between heating and cooling calls . | 4 minutes 1 to 5 minutes |
System setting | Description | Factory default setting (bold) and setting range |
22 . First Stage Differential | First stage differential . | 1°F (0.5°C) 1°F to 9°F (0 .5°C to 4 .5°C) |
23 . Second Stage Differential | Second stage differential . | 1°F (0.5°C) 1°F to 9°F (0 .5°C to 4 .5°C) |
24 . Third Stage Differential | Third stage differential . | 1°F (0.5°C) 1°F to 9°F (0 .5°C to 4 .5°C) |
25 . Fourth Stage Differential | Fourth stage differential . | 1°F (0.5°C) 1°F to 9°F (0 .5°C to 4 .5°C) |
26 . Away | Enables the Away feature . The Away feature allows the automation system or Aprilaire mobile and web apps to use a single button press to set the thermostat to a predefined setpoint(s) . The thermostat will hold the setpoint(s) until Away is canceled with the automation system or app or at the thermostat . | Disable Enable |
27 . Heat Blast | Enables the Heat Blast feature . | Disable Enable |
28 . Blast Offset | Amount of heating when Heat Blast is initiated . | 3°F (1.5°C) 3°F to 5°F (1 .5°C to 2 .5°C) |
37 . Stage Rate | Accumulation of equipment run time in equipment staging determination . 1 = more rapid staging of equipment (comfort) . 5 = slower staging of equipment (economy) . | 2 1 to 5 or “OFF” to ignore accumulated run time . |
38 . Progressive Recovery | Enable or disable progressive recovery . | Disable Enable |
39 . Low Balance Point | Outdoor temperature low balance point . Note: This option is only available if the thermostat is set to Heat Pump and Outdoor Sensor is set to Installed or Automation . | 20°F or -8°C 0°F to 60°F (-18°C to 12°C) or OFF to ignore LBP |
40 . High Balance Point | Outdoor temperature high balance point . Note: This option is only available if the thermostat is set to Heat Pump and Outdoor Sensor is set to Installed or Automation . | 65°F or 14.5°C 0°F to 80°F (-18°C to 22°C) or OFF to ignore HBP |
41 . Program Format | Enables the 7-day program . | 7-Day Non-Prog |
42 . Reset Service Reminders | Clears the Air Filter, Dehumidifier, Fresh Air, and HVAC service reminders if they are active and resets the start date to the current date . Clears the Change Water Panel reminder if it is active . If the reminder is set to Timed, the clock will be reset . | No Yes |
43 . HVAC Service Reminder | The period for displaying the “HVAC Service Reminder” message . | Off 1 to 12 months or “Off” to disable |
44 . Constant Backlight | Enable constant, low intensity backlight . | Disable Enable |
45 . Backlight Intensity | Set the active backlight intensity . Note: The minimum setting is 40% when Constant Backlight is enabled . | 100 Percent 0 to 100 Percent |
51 . Support Module Controlling Temp Sensors | Sets the number of controlling support module temperature sensors . | NONE 1 to 8 |
52 . Support Module Controlling RH Sensors | Sets the number of controlling support module humidity sensors . | NONE 1 to 4 |
53 . Display Monitor Support Module Sensor | Selects if the temperature or humidity values from support modules that are configured for monitoring are displayed in the message center of the thermostat . | No Yes |
The following tables contain the Indoor Air Quality system settings and their details. Default settings are shown in bold. Some settings are only present dependent upon the value of other settings. The use of the included outdoor temperature sensor (recommended) enables additional Indoor Air Quality functionality. If the outdoor temperature sensor was not enabled in the thermostat system settings, thermostat system setting 15, outdoor sensor, will be presented prior to entering the Indoor Air Quality system settings. Please refer to the Model 8820 Owner’s Manual for further information about thermostat features.
Air Cleaning System Settings Table
System setting | Description | Factory default setting (bold) and setting range |
Air Cleaner Installed | Selects if an air cleaner is installed . (If set to no, no other air cleaning settings will be available .) | No Yes |
Change Air Filter Reminder | The period for displaying the “Change Air Filter” message . | Off 1 to 12 months or “Off” to disable |
Humidifier System Settings Table
Note: A humidifier can only be installed if ventilation is not installed and Dehumidifier Control is not set to Whole
Home or AC w/IAQ Output
System setting | Description | Factory default setting (bold) and setting range |
Humidifier Installed | Selects if a humidifier is installed . Yes/On HVAC is used for applications where the humidifier is installed on the HVAC duct . Yes/Standalone is used for application where the humidifier is independent of the HVAC system . (If set to no, no other humidifier settings will be available .) | No Yes/On HVAC Yes/Standalone |
Humidifier Mode | Selects auto or manual mode . Auto mode controls humidity based on the humidity setting and outdoor temperature . Manual mode controls humidity based on the %RH setpoint . (Auto mode is only available if outdoor sensor is set to Installed or Automation .) | Auto Manual |
Humidity Setpoint Deadband | Selects the minimum difference between the humidifier and dehumidifier setpoints . (Only available if a humidifier is installed and dehumidifier control is set to air conditioner . Available in both set-ups .) | 10 Percent RH 10 to 20 Percent RH |
Humidifier Operation | Selects when humidification is allowed to occur relative to heating and fan operation . Without Fan allows humidification to occur without the HVAC fan . This option should only be used when the humidifier is independent of the HVAC system . Note: Without Fan is only available when Humidifier Installed is set to Yes/Standalone . | Heat Only Heat or Fan Forces Fan Without Fan |
CAUTION: When Humidifier Operation is set to Without Fan the thermostat will turn on humidification without energizing the HVAC fan . Do not select this option when the humidifier is installed on the HVAC duct . Without airflow moisture can accumulate in the duct resulting in significant damage . | ||
Change Water Panel Reminder | Selects the when the “Change Water Panel” message is displayed . | Off 1 Per Season 2 Per Season 300 Hours 600 Hours |
Reminder Month (Change Water Panel Reminder set to 1 per Season)
First Reminder Month (Change Water Panel Reminder set to 2 per Season) | Change Water Panel Reminder set to 1 per Season: Determines the month the “Change Water Panel” message is displayed .
Change Water Panel Reminder set to 2 per Season: Determines the first month the “Change Water Panel” message is displayed . | October November December January February March April May June July August September |
Second Reminder Start Month | Determines the second month the “Change Water Panel” message is displayed . (Only available when Change Water Panel Reminder set to 2 per Season .) | October November December January February March April May June July August September |
Dehumidifier System Settings Table
Note: Dehumidifier Control can only be set to Whole Home or AC w/IAQ Output if ventilation and humidification are not installed.
System setting | Description | Factory default setting (bold) and setting range |
Dehumidifier Control | Selects method of dehumidification . If set to None, no other dehumidifier settings will be available . If dehumidification is done with the air conditioner, using the option of AC w/IAQ Output will cause the IAQ output to be active when overcooling for dehumidification . This can be used if the HVAC equipment has a dedicated input to slow the fan during cooling to maximize dehumidification . | None (no dehumidification installed) Whole Home Air Conditioner AC w/IAQ Output |
Humidity Setpoint Deadband | Select the minimum difference between the humidifier and dehumidifier setpoints . (Only available if a humidifier is installed and Dehumidifier Control is set to Air Conditioner . Available in both set-ups .) | 10 Percent RH 10 to 20 Percent RH |
Lockout Dehumidifier During Cooling | Selects if dehumidification is disabled during a cooling call . (Only available if Dehumidifier Control is set to Whole Home .) | No Yes |
Dehumidifier Forces Fan | Select if dehumidification can turn on the fan . (Only available if Dehumidifier Control is set to Whole Home .) | No Yes |
Dehumidifier Service Reminder | The period for displaying the “Dehum Service Reminder” message . (Only available if Dehumidifier Control is set to Whole Home .) | Off 1 to 12 months or “Off” to disable |
Dehumidifier Overcooling Limit | Selects the amount of overcooling that can occur for dehumidification . (Only available if Dehumidifier Control is set to Air Conditioner or AC w/IAQ Output .) | 3°F (1.5°C) 1°F to 3°F (0 .5°C to 1 .5°C) |
Dehumidify in Vacation Mode | Selects if dehumidification with the air conditioner is done in Vacation Mode . (Only available if Dehumidifier Control is set to Air Conditioner or AC w/IAQ Output . | No Yes |
Vacation Dehumidifier Low Temp Limit | Sets the lowest temperature the air conditioner will cool to, to meet RH setpoint in Vacation Mode . (Only available if Dehumidifier Control is set to Air Conditioner or AC w/IAQ Output .) | 75°F (23.5°C) 70°F to 85°F (21°C to 28 .5°C) |
Ventilation System Settings Table
Note: Ventilation can only be installed if humidification is not installed and Dehumidifier Control is not set to Whole Home or AC w/IAQ Output.
System setting | Description | Factory default setting (bold) and setting range |
Fresh Air Vent Installed | Selects if ventilation is installed . (If set to No, no other ventilation settings will be available .) | No Yes |
Fresh Air Setup Type | Selects if ventilation is configured through the Code setup or Comfort . Comfort setup has more lockout options . Code setting ensures missed lockout time is made up . | Comfort Code |
Number of Bedrooms | Selects the number of bedrooms to be used for the Calculated Minutes per Hour . | 3 Bedrooms 1 to 10 Bedrooms |
Home Size | Selects the size of the home to be used for the Calculated Minutes per Hour . | 2500 SQ FT 500 to 7500 SQ FT |
Measured CFM | Selects the ventilation CFM to be used for the Calculated Minutes per Hour . | 110 CFM 30 to 250 CFM |
Calculated Minutes per Hour | Displays the Fresh Air Time calculated . | None Range 6 to 60 Minutes |
Override | Manual adjustment of Calculated Minutes per Hour . | (Calculated Minutes per Hour) Range 6 to 60 Minutes |
Enable High Vent RH Limit | Selects if ventilation is disabled if the indoor RH exceeds the indoor RH limit . (Only available if Fresh Air Setup is set to Comfort .) | Yes No |
High Vent RH Limit | Sets the ventilation indoor RH lockout limit . (Only available if Enable High Vent RH Limit is set to Yes .) | 55% 45% to 70% |
Enable Low Vent RH Limit | Selects if ventilation is disabled if the indoor RH exceeds the indoor RH limit . (Only available if Fresh Air Setup is set to Comfort .) | No Yes |
Low Vent RH Limit | Sets the ventilation indoor RH lockout limit . (Only available if Enable Low Vent RH Limit is set to Yes .) | 20% 10% to 30% |
Enable High Vent Temperature Limit | Enables high ventilation temperature lockout limit . (Only available if Outdoor Sensor is set to Installed or Automation .) | No Yes |
High Vent Temperature Limit | Sets high ventilation temperature lockout limit . (Only available if Enable High Vent Temperature Limit is set to Yes .) | 100°F (38°C) 85°F to 105°F (29°C to 41°C) |
Enable Low Vent Temperature Limit | Enables low ventilation temperature lockout limit . (Only available if Outdoor Sensor is set to Installed or Automation .) | No Yes |
System setting | Description | Factory default setting (bold) and setting range |
Low Vent Temperature Limit | Sets low ventilation temperature lockout limit . (Only available if Enable Low Vent Temperature Limit is set to Yes .) | 10°F (-12°C) -10°F to 40°F (-24°C to 6°C) |
HVAC Fan with Vent | Selects if ventilation forces the fan on . (Yes with high and low limits is only available if Outdoor Sensor is set to Installed or Automation .) | Yes Yes with high and low limits No |
Enable High Mixing Temperature | Enables high mixing temperature . (Only available is HVAC Fan with Vent is set to Yes with high and low limits .) | No Yes |
High Mixing Temperature | Sets the high mixing temperature . (Only available if Enable High Mixing Temperature is set to Yes .) | 80°F or (26°C) 60°F to 105°F (14°C to 41°C) |
Enable Low Mixing Temperature | Enables low mixing temperature . (Only available is HVAC Fan with Vent is set to Yes with high and low limits .) | No Yes |
Low Mixing Temperature | Sets the Low mixing temperature . (Only available if Enable Low Mixing Temperature is set to Yes .) | 40°F (6°C) 0°F to 50°F (-18°C to 12°C) |
Fresh Air Service Reminder | The period for displaying the “SERVICE FRESH AIR” message . | OFF 1 to 12 months or “OFF” to disable |
Note: Refer to manuals for humidifier, dehumidifier, air cleaner, and ventilation products for recommended installation and operation.
If any of the Indoor Air Quality control features are not installed, the corresponding button can be removed using the following procedure:
The system test menu is used to test a system after installation. The outputs of the thermostat can be manually activated to test their function. The instructions below show how to enter the test mode and turn outputs on and off.
HOW TO ENTER THE SYSTEM TEST MENU:
Press [MODE] to set system to off.
Press and hold [FAN] and [MODE] for three seconds to enter system test mode.
The first screen of the installer test displays the equipment configuration.
Press [NEXT] to enter the first installation test or [CANCEL] to exit.
SYSTEM TEST STEPS
Heating equipment test
Cooling equipment test
Fan equipment test
Humidification equipment test
Dehumidification equipment test
Ventilation equipment test
Each equipment test will begin with the selection of turning on the output or stage as shown below.
Press or to change the selection.
Press [NEXT] to accept the selection and proceed to the next step.
If YES is selected, the thermostat will test the corresponding output. If NO is selected, the thermostat will proceed to the next step.
While the equipment test is active the corresponding test information will be shown.
Press [NEXT] to accept the selection and proceed to the next test selection.
SYSTEM TEST TABLES
Heat / Cool Heating Equipment Test | ||||||
Heat Type | W | W2 | Y | Y2 | G | |
Gas | 1st Stage Test | ON | ||||
Gas | 2nd Stage Test | ON | ON | |||
Electric | 1st Stage Test | ON | ON | |||
Electric | 2nd Stage Test | ON | ON | ON |
Heat Pump Heating Equipment Test (Electric Heat) | |||||||||
Compressor Stages | Aux Stages | W | W2 | Y | Y2 | O/B set to | G | ||
O | B | ||||||||
1 | 1 | 1st Stage Test | ON | ON | ON | ||||
1 | 1 | 2nd Stage Test | ON | ON | ON | ON | |||
2 | 1 | 1st Stage Test | ON | ON | ON | ||||
2 | 1 | 2nd Stage Test | ON | ON | ON | ON | |||
2 | 1 | 3rd Stage Test | ON | ON | ON | ON | ON | ||
1 | 2 | 1st Stage Test | ON | ON | ON | ||||
1 | 2 | 2nd Stage Test | ON | ON | ON | ON | |||
1 | 2 | 3rd Stage Test | ON | ON | ON | ON | ON | ||
2 | 2 | 1st Stage Test | ON | ON | ON | ||||
2 | 2 | 2nd Stage Test | ON | ON | ON | ON | |||
2 | 2 | 3rd Stage Test | ON | ON | ON | ON | ON | ||
2 | 2 | 4th Stage Test | ON | ON | ON | ON | ON | ON |
Heat Pump Heating Equipment Test (Gas Heat) | |||||||||
Compressor Stages | Aux Stages | W | W2 | Y | Y2 | O/B set to | G | ||
O | B | ||||||||
1 | 1 | 1st Stage Test | ON | ON | ON | ||||
1 | 1 | 2nd Stage Test | ON | ON | |||||
2 | 1 | 1st Stage Test | ON | ON | ON | ||||
2 | 1 | 2nd Stage Test | ON | ON | ON | ON | |||
2 | 1 | 3rd Stage Test | ON | ON | |||||
1 | 2 | 1st Stage Test | ON | ON | ON | ||||
1 | 2 | 2nd Stage Test | ON | ON | |||||
1 | 2 | 3rd Stage Test | ON | ON | ON | ||||
2 | 2 | 1st Stage Test | ON | ON | ON | ||||
2 | 2 | 2nd Stage Test | ON | ON | ON | ON | |||
2 | 2 | 3rd Stage Test | ON | ON | |||||
2 | 2 | 4th Stage Test | ON | ON | ON |
Heat / Cool Cooling Equipment Test | |||||
W | W2 | Y | Y2 | G | |
1st Stage Test | ON | ON | |||
2nd Stage Test | ON | ON | ON |
Heat Pump Cooling Equipment Test | |||||||
W | W2 | Y | Y2 | O/B set to | G | ||
O | B | ||||||
1st Stage Test | ON | ON | ON | ||||
2nd Stage Test | ON | ON | ON | ON |
Fan Equipment Test | ||||
W | W2 | Y | Y2 | G |
ON |
Humidification Equipment Test | |
I1/ I2 | G |
ON | ON |
Dehumidification Equipment Test | |
I1/ I2 | G |
ON | ON |
Ventilation Equipment Test | |
I1/ I2 | G |
ON | ON |
DISPLAY IS BLANK
HEATING SYSTEM DOES NOT RESPOND (“HEATING” APPEARS ON SCREEN)
TEMPERATURE SETTINGS DO NOT CHANGE
Make sure heating and cooling temperatures are set to acceptable ranges:
THE COOLING SYSTEM DOES NOT RESPOND (“COOLING” APPEARS ON SCREEN)
HEAT PUMP ISSUES COOL AIR IN HEAT MODE, OR WARM AIR IN COOL MODE
HEAT/COOL BOTH ON AT THE SAME TIME
HEATING EQUIPMENT IS RUNNING IN COOL MODE
“HEATING” IS NOT DISPLAYED
“COOLING” IS NOT DISPLAYED
HUMIDIFIER DOES NOT OPERATE IN AUTO MODE
The Wi-Fi connection status is communicated through the use of the radio strength indicator and the message center.
The table below describes the various statuses and the corresponding message and radio bar display.
If the thermostat enters an error mode, all outputs are turned off. The thermostat attempts to recover every 10 minutes.
Error code | Message | Error Description |
01 | “SENSOR ERROR” | Open temperature sensor circuit |
02 | Shorted temperature sensor circuit | |
03 | “EEPROM ERROR” | Error in permanent memory |
06 | “REMOTE SENSOR ERROR” | Open remote temperature sensor circuit |
07 | Shorted remote temperature sensor circuit | |
08 | “SUPPORT MODULES LOST” | All support modules with controlling temperature sensors are in error |
Environment | |
Temperature | Operating: 32° to 120°F (0° to 48 .9°C) Shipping: -30° to 150°F (-34 .4° to 65 .5°C) |
Relative humidity | Operating: 5% to 90% R .H . (non-condensing) |
Electrical | |
Operating voltage | 24VAC (18 – 30VAC) |
Current | Maximum: 2 .5A (total), 1 .0A (single output) Maximum surge current: 5A |
Thermal | |
Outdoor & Remote temperature sensor | Maximum distance: 300 feet |
Room temperature measurement | Display range: 32° to 99°F (0° to 40°C) |
Outdoor temperature measurement | Display range: -40° to 130°F (-40° to 55°C) |
Setpoint temperature range | Heat: 40° to 90°F (4° to 32°C) Cool: 50° to 99°F (10° to 37°C) |
Setpoint humidity range | Humidification: 10% to 50% R .H . Dehumidification: 40% to 90% R .H . |
P.O. Box 1467
Madison, WI 53701-1467
Phone: 800/334-6011
Fax: 608/257-4357
www.aprilairepartners.com
61001112 2.17
B2206474D
U.S. Patent Numbers 8,146,376, 8,596,078, and other patents are pending.
© 2017 Aprilaire – A division of Research Products Corporation
Download Manual: Aprilaire 8820 Touch Screen Wi-Fi Automation Thermostat Safety & Installation Instructions
Aprilaire 8820 Touch Screen Wi-Fi Automation Thermostat Safety & Installation Instructions
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