FANs 930, 930.5, 125, 121
Product/Technical Bulletin A350P
Issue Date 0414
© 2014 Johnson Controls, Inc. 1
Part No. 24-7664-192, Rev. G www.johnsoncontrols.com
Code No. LIT-930020
The A350P is an electronic, proportional plus integral
temperature control with analog 0 to 10 VDC and
0 to 20 mA outputs. The control is equipped with
three user-selectable time integration constants and
an adjustable throttling range of 2 to 30F° (1 to 17C°).
Two models cover a setpoint range of -30 to 130°F
(-35 to 55°C) and 90 to 250°F (32 to 121°C).
As are all System 350
™
products, the A350P control
is housed in a NEMA 1, high-impact plastic enclosure.
The modular design provides easy, plug-together
connections for quick installation and future
expandability.
Figure 1: A350P Electronic Proportional Plus
Integral Temperature Control
Modular Design Enables stage, display, and power modules to
be purchased and installed as needed
Plug-Together Connectors
and 35 mm DIN Rail
Mounting
Eliminates wiring between modules, which
reduces installation costs
Two Models Cover a Wide
Setpoint Range of -30 to
250°F (-35 to 121°C)
Reduces inventory by encompassing
temperature ranges required to support the
majority of Heating, Ventilation, Air Conditioning,
and Refrigeration (HVAC/R) applications
Minimum Output Adjustable
from 0 to 60%
Tailors the output to the requirements of the
controlled device; can 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
stable performance
Field-selectable Reverse
or Direct Acting Mode
Works in heating or cooling applications
Three User-Selectable
Integration Time Constants
Provides selection of the integration constant for
applications requiring proportional plus integral
control
Interchangeable
Temperature Sensors
Increase versatility and serviceability
System 350
TM
A350P Electronic Proportional Plus Integral
Temperature Control
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