Lennox iComfort E30 Installation And Setup Manual page 24

Parameter
Description
(In alphabetical
order)
Ventilation Control Mode - timed (default)
Parameter range is 0.0 - 60.0 minutes. Default is 20.0 minutes. Can be adjusted in increments of 1.0 minutes.
• The system first tries to satisfy the ventilation time by only ventilating while conditioning is occurring. Continuous fan is not considered conditioning.
• When the required time remaining to ventilate for the hour does not equals the amount of time remaining in that hour, the system begins ventilation and does not stop
Ventilation Minutes
until the ventilation time requirement is satisfied.
Per Hour
• When ventilating without a conditioning demand, the ventilation output is active as well as a continuous indoor fan demand.
• When ventilating with a conditioning demand, the ventilation output is active with the conditioning demand outputs.
Thermostat ventilation CFM parameters are to be adjusted only after the HRV/ERV set up is completed and the CFMs are known. Once the thermostat's CFMs are adjusted they are
used with the thermostat's timer algorithm to determine how long to run the HRV/ERV and to change from low to high speed if a 2-stage HRV/ERVs.
Ventilation Rate
Parameter range is 20 - 500 CFM. Default is 130 CFM. Can be adjusted in increments of 1.0 CFM.
(Only listed for
1-speed ERV or HRV
Ventilation Rate for
Low Speed
Parameter range is 10 - 200 CFM. Default is 50 CFM. Can be adjusted in increments of 1.0 CFM.
(Only listed for
2-speed ERV or HRV
Ventilation Rate for
High Speed
Parameter range is 20 - 500 CFM. Default is 130 CFM. Can be adjusted in increments of 1.0 CFM.
(Only listed for
2-speed ERV or HRV
Parameter range is 60 to 115ºF. Default is 100ºF. Can be adjusted in increments of 5ºF.
Ventilation High
While the outdoor temperature is equal to or higher than the setting for Ventilation High Outdoor Temperature Limit, ventilation does not run. When locked out due
Outdoor Temperature
to high outdoor temperature, it will become unlocked when either the outdoor temperature is missing, or when the temperature reported is 1°F less than the Ventilation
Limit
High Outdoor Temperature Limit setting when display units are in Fahrenheit, or is reported as 0.5°C less than lock out setting when the display units are Celsius.
Parameter range is -20 to 55ºF. Default is 0ºF. Can be adjusted in increments of 5ºF.
Ventilation Low
While the outdoor temperature is lower than the setting for the Ventilation Low Outdoor Temperature Limit, ventilation does not run. When locked out due to low
Outdoor Temperature
outdoor temperature, it will become unlocked when the outdoor temperature is missing, or when the temperature reported is 1°F higher than the Ventilation Low
Limit
Outdoor Temperature Limit setting when display units are Fahrenheit, or is reported as 0.5°C higher than lock out setting when the display units are Celsius
Parameter range is 45 to 80ºF. Default is 55ºF. Can be adjusted in increments of 5ºF.
Ventilation High
While the outdoor dew point is higher than the setting for the high outdoor dew point limit, ventilation does not run. When locked out due to high outdoor dew point limit,
Outdoor Dew Point
it will become unlocked when the outdoor dew point is missing, or when the dew point temperature reported is 1°F less than the lock out setting when display units are
Limit
Fahrenheit, or is reported as 0.5°C less than lock out setting when the display units are Celsius.
Table 7. Smart Hub Parameters
Ventilation Rates
24