Bryant Evolution Connex SYSTXBBECC01-A, Installation Instructions Manual

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6.3.2.1. Airflow
This option allows the installer to select the appropriate air flow based on the needs
of the installation. 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 that 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 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
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.
The dehumidify airflow, when set to
NORMAL , is allowed to adjust to a minimum
to satisfy the dehumidification call. When set to
HIGH
, the minimum airflow
during the dehumidify mode is increased to reduce duct and register sweating. Also
the airflow increases minimum airflow during normal cooling operation to help
reduce duct sweating.