Acme PP-32 - Manual (Page 7)

7 KOOLMASTER PP-32
REV.01
The PP-32 is an electronic device used for environmental control in livestock
buildings. It allows the user to maintain a specified target temperature by
controlling the operation of ventilation and heating equipment. Eight heater
stages, 16 fan stages, a tunnel curtain, 2 auxiliary outputs, vent doors and 4
clock outputs can be controlled. Fan stages can be configured to activate
cooling systems in timer mode. In all, the PP-32 provides up to 32 relay
outputs. In addition, up to 12 DWR-F-1A air inlet controllers can be con-
nected to the PP-32.
The main features of the PP-32 are as follows:
LCD DISPLAY
An LCD display provides an efficient interface for displaying, monitoring and
adjusting parameter values.
MINIMUM VENTILATION CYCLE
When ventilation is not required for reducing room temperature, on-off fan
outputs can be operated either continuously or intermittently to reduce the
level of humidity and supply oxygen to the room.
TEMPERATURE AND MINIMUM VENTILATION CURVES
The controller can automatically change the temperature set point and the
minimum ventilation's On-Time over a given period of time in accordance
with the user's requirements.
AVERAGE TEMPERATURE READINGS RECORDED FOR THE PAST 60 DAYS
The average temperature readings are logged into the controller's history for
the past 60 days.
INDIVIDUAL SENSOR READINGS RECORDED FOR THE PAST 10 DAYS
The minimum and maximum readings of each sensor (temperature & humidity
sensors) are logged into the controller's history for the past 10 days.
WATER AND HEATER MONITORING
A pulse input is provided to monitor the water consumption. Heater run times
are also logged into an history. These values are recorded for the current day
and for the previous 60 days.
ALARM MANAGEMENT
Alarms are provided for high-low temperatures, defective sensors and other
system failures. The controller keeps in memory the 10 most recent alarms.
2. FEATURES