Johnson Controls Penn System 350 S350P - User Manual

FANs 930, 930.5
Add-On Modules Section
Product/Technical Bulletin S350P
Issue Date April 8, 2014
© 2014 Johnson Controls, Inc. 1
Part No. 24-7664-1202, Rev. A
Code No. LIT-930086
The S350P is used in conjunction with the A350
Temperature Control to add proportional or
proportional plus integral staging capability. The
S350P is an electronic control with analog 0 to 10
VDC and 0 to 20 mA outputs.
As with all System 350 products, the S350P is housed
in a NEMA 1, high-impact plastic enclosure. The
modular design provides easy, plug-in connections for
quick installation and future expandability.
Figure 1: S350P Electronic Proportional Plus Integral
Temperature Stage Module
Features and Benefits
Plug-in Connectors and
35 mm DIN Rail Mountability
Eliminates wiring between modules and reduces
installation costs
Proportional or Proportional
Plus Integral Output

Adds proportional or proportional plus integral
staging capability to all A350 Temperature
Controls
 Minimum Output Adjustable
from 0 to 60%
Tailors the output to the requirements of the
controlled device; can also be used to set
minimum valve or damper position
 Adjustable Throttling
Range of 2 to 30F° (1 to 17C°)
Enables the user to tune the system for optimum
performance
 Field-selectable Reverse
or Direct Acting Mode
Works in heating or cooling applications
 Three User-selectable
Integration Constants

Provides selection of the integration constant for
applications requiring proportional and integral
control
 Light-Emitting Diode (LED)
Bar Graph Display of Output
Aids in adjustment, tuning, and troubleshooting
System 350

S350P Proportional Plus Integral Temperature Stage Module

Johnson Controls Penn System 350 S350P Specifications