User's Manual

30 31
Setup and testing
Ventilation system settings table
Note: Ventilation can be installed only if humidification is not installed and Dehumidifier Control is not set
to Whole Home.
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 are available.)
No
Yes
Fresh Air Forces
Fan
Selects if ventilation forces the fan on. No
Yes
Fresh Air Setup Selects if ventilation is configured through the
ASHRAE setup or Timed. If ASHRAE setup is
selected, the hourly ventilation time is calculated
using the ASHRAE recommendations. If Timed
setup is selected, the hourly ventilation time is
determined based on the Fresh Air Time value.
Timed
ASHRAE
Fresh Air Time Selects the number of minutes per hour that
ventilation will be active. (Only available if Fresh
Air Setup is set to Timed.)
30 MIN/HR
0 to 60 MIN/HR
High Limit Outdoor
Temp
Selects if ventilation is disabled when the outdoor
temperature exceeds the outdoor high limit. (Only
available if Fresh Air Setup is set to Timed and an
outdoor temperature sensor is installed.)
No
Yes
Outdoor High Limit Sets the high temperature limit for ventilation.
(Only available if High Limit Outdoor Temp is set
to Ye s .)
100°F (38°C)
90°F to 100°F (32°C to 38°C)
Ventilation system settings table
Note: Ventilation can be installed only if humidification is not installed and Dehumidifier Control is not set
to Whole Home.
System setting Description
Factory default setting
(bold) and setting range
Low Limit Outdoor
Temp
Selects if ventilation is disabled when the outdoor
temperature exceeds the outdoor low limit. (Only
available if Fresh Air Setup is set to Timed and an
outdoor temperature sensor is installed.)
No
Yes
Outdoor Low Limit Sets the low temperature limit for ventilation.
(Only available if Low Limit Outdoor Temp is set
to Ye s .)
10°F (-11°C)
-10°F to 30°F (-23°C to -1°C)
High Limit Indoor
RH
Selects if ventilation is disabled when the indoor
RH exceeds the indoor RH limit. (Only available if
Fresh Air Setup is set to Timed.)
No
Yes
Indoor RH Limit Sets the high indoor RH limit for ventilation. (Only
available if High Limit Indoor RH is set to Yes.)
60%
50% to 70%
Number of
Bedrooms
Selects the number of bedrooms to be used for
the ASHRAE calculation. (Only available if Fresh
Air Setup is set to ASHRAE.)
3 Bedrooms
1 to 6 Bedrooms
Number of
Occupants
Selects the number of occupants to be used for
the ASHRAE calculation. (Only available if Fresh
Air Setup is set to ASHRAE.)
4 Occupants
1 to 10 Occupants