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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 h igh 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 airflo w 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,isallowedtoadjusttoaminimum
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 coolin g operation to help
reduce duct sweating.
After the selections are made, touch SAVE.
S Cooling Airflow: Quiet, Comfort, EFF325, EFF350, or Max
d Default = Comfort
S Dehumidify Airflow: Normal or Hig h
d Defau lt = Normal
6.3.2.2. Altitude
S Static Pressure selection: 0 to 10,000 feet. This is u sed to correct the static
pressure readings the system performs.
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