Sterlco SDAP 90-225 CFM Series Drying and Conveying Systems - Manual (Page 34)

Page 34 SDAP Series PD 2 to PD 4 Drying and Conveying Systems
Figure 11
Typical SDAP Temperature Controller
PV
SV
OUT1
OUT2 MANU STOP RMT AT SUB1
AT
E5CK
4-8 Setting the Process Air Temperature
To change the process air temperature set point with the dryer running:
„ Press
to raise the set point to the temperature you want.
„ Press
to lower the set point to the temperature you want.
„ Press the
AT
Auto-tune key to initiate auto-tuning.
4-9 Setting the Shift on Dew Point
SDAP dryers shift air flow from the on-line desiccant bed to the regenerated desiccant bed,
based on actual dew point demand, not fixed time cycles. After the off-line bed regenerates, the
PLC controller waits for a high dew point signal from the process air dew point controller before
switching beds. The PLC controller has a four (4) -hour timer override if it does not receive a
signal from the dew point control.