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DN-Series Integrated Programmable Controls
DOAS
TEMPERING CONTROL
6.2.1.3 Dehumidification with No Reheat
This dehumidification method uses any cooling source.
When the return (or outdoor) air dew point exceeds the 55°F (adjustable) the dehumidification
mode will be enabled. The air is cooled to a CA temperature setpoint, usually around 50–55°F.
If feeding the space directly, this could cause overcooling.
SA
T
Cooling
CA
Temperature
The settings for this method require that
u
Cool is enabled in the
Unit Configuration
u
Set Allow heat src in dehumid to No in
I/O Configuration
u
A setpoint for the CA temp is set
The status can be viewed in
Unit Status
.
6.2.1.4 Dehumidification Disabled
The settings for this method require that
u
Dehumidification Changeover Selection is set to “Dehum Disabled” in
I/O Configuration
. In
this case the cooling will only be used to supply sensible cooling.
