Acme PP-32 - Manual (Page 21)

21
PP-32
KOOLMASTER PP-32
REV.01
5.5 INLET / VENT DOOR SETTINGS
The PP-32 controller can operate the air inlets / vent doors in two
different ways:
1. Inlets' positions can be determined by using a potentiometer feedback
controller (DWR-F-1A). Refer to the installation setup section to
enable DWR-F-1A modules. Note that the static pressure sensor must
be deactivated in order to activate the air inlets (see sec. 5.15.3).
2. Inlets' positions can be determined by the static pressure level in the
barn. In this case, a static pressure sensor is required and must be
activated during the installation setup (see sec. 5.15.3). The term
"Vent Door" is used to refer to an air inlet that is controlled by the
static pressure.
5.5.1 Inlet Settings (Potentiometer Feedback from Inlets)
If air inlets operate according to potentiometer feedback modules (DWR-
F-1A), the PP-32 controller adjusts the air inlets opening according to
ventilation stages. As the temperature increases and new stages are
activated, the inlet is opened or closed accordingly. The air inlet position
is directly related to these ventilation stages. Refer to the DWR-F-1A
instruction manual to program inlet openings.
In addition, a compensation can be activated to ensure the uniformity in
room temperature: air inlet positions are automatically adjusted when the
reading of the sensors that are associated with the air inlet differs from
the average room temperature.
5.5.1.1 Setting DWR-F-1A's ID numbers
ID numbers must be assigned to each DWR-F-1A modules. This allows to
establish the communication with the PP-32 control and the external
modules. The following table gives the proper ID numbers for each
DWR-F-1A module.