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
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