Furnace; Furnace Airflow; Ac/Hp Airflow - Bryant Evolution Connex Control Installation Instructions Manual

6.3.3. Furnace

First touch SETUP, then touch FURNACE to set up the parameters for the furnace unit.
A14225A_2

6.3.3.1. Furnace Airflow

Selects the airflow of the furnace when heating. EFFICIENCY is the airflow used to meet
specified ratings, COMFORT is a decreased airflow used to increase the output air temperature
and provide increased comfort.
For the Low heat rise option, set to ON if the system contains a bypass humidifier. The ON
setting will increase the furnace low heat airflow.
After the selections are made, touch SAVE.
• Furnace Air Flow: Comfort or Efficiency. Default = Comfort
• Low Heat Rise: On or Off. Default = Off

6.3.3.2. AC/HP Airflow

NOTE: For Geothermal Heat Pumps, this option will be shown as 'Geo HP' airflow. This
option elects the airflow of the furnace when cooling, heat pump heating, and dehumidification
when used with a geothermal heat pump.
The QUIET airflow means the minimum cooling airflow that the system can safely run
(typically 300 CFM/ton). Use this setting if duct noise is a severe problem.
NOTE: Duct sweating in high humidity environments could become an issue at low airflows.
The COMFORT airflow means airflow is varied depending on humidity and temperature
demand settings. This selection enables the full dehumidify and comfort capabilities of the
system. The EFF325 (or EFF1) airflow is a fixed airflow used to achieve specified ratings – no
dehumidification airflow reduction is performed. This is nominally 325 CFM/ton, but will vary
if a 2-stage outdoor unit is used. The EFF350 (or EFF2 airflow is a fixed airflow used to
achieve specified ratings – no dehumidification airflow reduction is performed. This is
nominally 350 CFM/ton, but will vary if a 2-stage outdoor unit is used. The MAX airflow is a
fixed 400 CFM/ton. No dehumidification airflow reduction is performed.
NOTE: For Geothermal Heat Pumps, the airflow labels have been changed from EFF325 and
EFF350 to EFF1 and EFF2, respectively. Nominal geothermal system airflows for these settings
tend to be different than the typical 325 and 350 CFM/ton values.
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