C450CQN-4C | CONTROL MODULE | Johnson Controls

CONTROL MODULE

Description

System 450™ is a family of modular, digital electronic controls that is easily assembled and set up to provide reliable temperature, pressure, and humidity control for a wide variety of HVAC/R applications, commercial process applications, and industrial process applications. The System 450 control system is designed to replace System 350™ and System 27 control systems, and to provide many additional features and benefits with fewer than twenty model variations. System 450 control modules provide a field-configurable out-of-the-box solution. Most System 450 control modules can control temperature, pressure, and humidity systems simultaneously. A single C450 control module can be set up as a stand-alone control or connected to expansion modules to control up to ten On/Off relay and proportional analog outputs, based on any of the three available inputs. Refer to the following documents for important product application information:

• System 450™ Series Modular Controls Product Bulletin (LIT-12011458)
•  System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin (LIT-12011459)
•  System 450™ Series Control Modules with Analog Outputs Installation Instructions (Part No. 24-7664-2853)

Features and Benefits

•  Durable, Compact, Interchangeable Modular Components with Plug-Together Connectors and DIN Rail or Direct Wall Mount Capability—Eliminate field wiring between modules and allow you to quickly and easily design, assemble, install, and upgrade your control systems.
•  Versatile, Multipurpose, Field-Configurable Control Modules and Expansion Modules Designed for Global Use—Allow you to create a wide variety of application-specific control systems capable of controlling temperature, pressure, or humidity, or all three conditions simultaneously, with only a small suite of module models.
•  Control Modules with Bright Backlit LCDs and Four-Button Touchpad User Interfaces, Up to Three Hard-Wired Input Sensors and Up to Ten Relay or Analog Outputs (In Any Combination) per Control System—Provide quick, clear, visual status of your System 450 control system inputs and outputs with the touch of a button and enable you to quickly and easily set up and adjust your control system.
• Multipurpose, All-in-One Control Modules—Enable simple stand-alone, single-module control systems that are temperature, pressure, and humidity capable out of the box and easy to set up in the field to replace a wide variety of OEM HVAC/R and process controls.
•  An Extensive Suite of Compatible Temperature and Humidity Sensors and Pressure Transducers—Allows you to monitor and control a wide range of HVACR and process conditions in a variety of standard and global units of measurement.
•  High Input Signal Selection—Enables your control system to monitor a temperature, pressure, or humidity condition with two or three sensors (of the same type) and control your system outputs based on the highest condition value sensed by the referenced sensors.
•  Differential Control—Enables your control system to monitor and maintain a temperature, pressure, or humidity differential between two sensor points within a system, process, or space.

Repair Information

If the System 450™ control module with analog outputs fails to operate within its specifications, replace the unit. For a replacement System 450™ control module with Analog Outputs, contact your Johnson Controls® representative.