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Johnson Controls S350P Proportional Plus Integral Temperature Stage Module

Proportional Plus Integral Temperature Stage Module
S350P

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.

• 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 constant 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

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Cat #Descriptions
S350PQ-1CS350P Proportional Plus Integral Temperature Stage Module
Input Voltage: 5 VDC reference provided by the A350; 24V power supply
Ambient Temperatures: Operating: -30 to 150°F (-34 to 66°C)
Shipping:-40 to 185°F (-40 to 85°C)
Humidity: 0 to 95% RH non-condensing;
Maximum dew point: 85°F (29°C)
Analog Outputs: 0 to 10 VDC (550 ohm load minimum) and 0 to 20 mA (600 ohm load maximum)
Minimum Output: Adjustable from 0 to 60% of the output
Output Indication: A ten-segment LED bar graph indicates percentage of output
Mode of Operation: Direct or reverse action is jumper selectable
Offset Range: 0 to 30F° (0 to 17C°)
Throttling Range: 2 to 30F° (1 to 17C°)
Integration Constant: Four selectable rates: Fast, Medium, Slow, and Off
Case and Cover Material: NEMA 1 high-impact thermoplastic
Agency Listing: UL Guide No. XAPX and cUL Guide No. XAPX7, File E27734


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