Air Cleaning System Settings Table; Fresh Air System Settings Table; Installer System Test - Aprilaire 8840 Safety & Installation Instructions

SETUP & TESTING

Air Cleaning System Settings Table

System setting Description
Air Cleaner Installed? Selects if an air cleaner is installed . (If set to No, no other
air cleaner settings will be available .)
Display Button? Note: Only available if Air Cleaning Installed is set to No .
Air Cleaner Reminder The period for displaying the "Change Air Filter" message .
Number of Months for Recurrence Select number of months for displaying reminder .

Fresh Air System Settings Table

System setting Description
Fresh Air Vent Installed Selects if ventilation is installed . (If set to No, no other
ventilation settings will be available .)
Display Button? Note: only available if Fresh Air Installed is set to No .
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 .
Number of Bedrooms Selects the number of bedrooms to be used for the Calculated
Minutes per Hour .
Home Size Selects the size of the home to be used for the Calculated
Minutes per Hour .
Measured CFM Selects the ventilation CFM to be used for the Calculated
Minutes per Hour .
Calculated Minutes Displays the Fresh Air Time calculated .
per Hour
Override Manual adjustment of Calculated Minutes per Hour .
Outdoor Temperature Select if outdoor sensor is attached or not .
Sensor Installed?
Enable High Vent RH Selects if ventilation is disabled if the indoor RH exceeds the
Limit indoor RH limit . (Only available if Fresh Air Setup is set to
Comfort .)
High Vent RH Limit Sets the ventilation indoor RH lockout limit . (Only available if
Enable High Vent RH Limit is set to Yes .)
Enable Low Vent RH Selects if ventilation is disabled if the indoor RH exceeds the
Limit indoor RH limit . (Only available if Fresh Air Setup is set to
Comfort .)
Low Vent RH Limit Sets the ventilation indoor RH lockout limit . (Only available if
Enable Low Vent RH Limit is set to Yes .)
Enable High Vent Enables high ventilation temperature lockout limit . (Only
Temperature Limit available if Outdoor Sensor is set to Installed or Automation .)
High Vent Temperature Sets high ventilation temperature lockout limit . (Only available
Limit if Enable High Vent Temperature Limit is set to Yes .)
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Factory default setting
(bold) and setting range
No
Yes
Yes
No
Disabled
Enabled
12 Months
1 to 12 Months
Factory default setting (bold)
and setting range
No
Yes
Yes
No
Comfort
Code
3 Bedrooms
1 to 10 Bedrooms
2500 SQ FT
500 to 7500 SQ FT
110 CFM
30 to 250 CFM
None
Range 6 to 60 Minutes
(Calculated Minutes per Hour)
Range 6 to 60 Minutes
No
Yes
Yes
No
55%
45% to 70%
No
Yes
20%
10% to 30%
No
Yes
100°F (38°C)
85°F to 105°F (29°C to 41°C)
SETUP & TESTING
System setting Description
Enable Low Vent Enables low ventilation temperature lockout limit . (Only
Temperature Limit available if Outdoor Sensor is set to Installed or Automation .)
Low Vent Temperature Sets low ventilation temperature lockout limit . (Only available
Limit if Enable Low Vent Temperature Limit is set to Yes .)
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 .)
Enable High Mixing Enables high mixing temperature . (Only available is HVAC Fan
Temperature with Vent is set to Yes with high and low limits .)
High Mixing Sets the high mixing temperature . (Only available if Enable
Temperature High Mixing Temperature is set to Yes .)
Enable Low Mixing Enables low mixing temperature . (Only available is HVAC Fan
Temperature with Vent is set to Yes with high and low limits .)
Low Mixing Sets the Low mixing temperature . (Only available if Enable
Temperature Low Mixing Temperature is set to Yes .)
Fresh Air Service The period for displaying the "SERVICE FRESH AIR" message .
Reminder

INSTALLER SYSTEM TEST

The Installer Test can be accessed from
the Installer Menu . All equipment outputs
that are configured in the installer settings
can be turned on and off for testing
equipment . Minimum on and off times are
not enforced while in this mode .
Factory default setting (bold)
and setting range
No
Yes
10°F (-12°C)
-10°F to 40°F (-24°C to 6°C)
Yes
Yes with high and low limits
No
No
Yes
80°F or (26°C)
60°F to 105°F (14°C to 41°C)
No
Yes
40°F (6°C)
0°F to 50°F (-18°C to 12°C)
OFF
1 to 12 months or "OFF" to disable
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