Product Overview

The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office.
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2009 Johnson Controls, Inc.
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C450xxx-x
System 450™ Series Modular Controls
Code No. LIT-1900549
Issued May 1, 2009
Description
The System 450™ Series Modular Controls
are the next generation of Johnson Controls/
PENN® digital electronic control, expansion,
and power modules designed to provide
accurate, cost-effective, compact, custom
control systems for a wide variety of Heating,
Ventilation, Air Conditioning, Refrigeration
(HVACR) and commercial/industrial process
applications.
The System 450 control system is designed to
replace System 350™ control system and
System 27 and provide many additional
features and benefits with less than a dozen
model variations.
All System 450 modules are multipurpose and
field configurable out-of-the-box; each module
is designed for use in temperature, pressure,
and humidity systems. In fact, a System 450
control system can be easily assembled and
configured to monitor and control temperature,
pressure, and humidity simultaneously.
A single System 450 control module can be
set up as a stand-alone control or connected
to expansion modules to control up to 10
outputs based on the input from up to 3 control
sensors. A control system’s outputs can be
relay outputs (On/Off), analog outputs (0-10
VDC or 4-20 mA), or any combination of relay
and analog outputs.
Features
• Durable, compact modular design with
plug-together connectors and DIN rail or
direct wall mount capability – eliminates
field wiring between modules and allows
you to quickly and easily assemble, install,
and upgrade your System 450 control
systems
• Multi-purpose, field-configurable modules
designed for global use – enable you to
design and configure a wide variety of
custom control systems capable of
controlling temperature, pressure and
humidity (simultaneously), with only a
handful of models
• Backlit Liquid Crystal Display (LCD) and
four-button touch pad User Interface (UI) –
provides quick, clear, visual status of the
control system’s input sensors and outputs
with the touch of a button and enable you to
quickly and easily set up and adjust the
sensors and outputs in the field
• Up to three input sensors and up to ten
outputs (relay or analog) – allow you to
build both simple and complex application-
specific control systems and reduce your
costs to only the required components
• Versatile, all-in-one, stand-alone control
modules – provide multipurpose On/Off or
analog controls (depending on the model)
that are temperature, pressure, and
humidity capable out-of-the-box and field
configurable to replace a wide variety of
HVACR controls
• An extensive suite of compatible
temperature, pressure, and humidity
control sensors – cover a wide range of
temperature, pressure (air and refrigerant),
and humidity conditions in standard units of
measurement for global markets
Applications
You can create a wide variety of custom,
application-specific control systems with
System 450 modules. Here are some common
application examples.
Temperature Control
• heating and cooling control
• heating and cooling control with deadband
• boiler temperature stage control
• boiler circulating pump control
• chilled water temperature stage control
• discharge air temperature control
• modulating damper or valve control
Pressure Control
• refrigeration compressor capacity control
• staged On/Off condenser fan control
• two-speed fan motor control
• floating pressure control of an actuator
System 450 Control System with a
Control, Power, and Expansion Module
A System 450 control module can be
used for stand-alone temperature,
pressure, or humidity control.
• constant static pressure or air velocity
control
• relief damper building pressurization
control
• relief fan building pressurization control
Humidity Control
• humidification/dehumidification control
• staged On/Off humidity control
Multipurpose Control
• temperature and pressure based
refrigeration rack control
• temperature and humidity control for a wine
cellar or greenhouse
• temperature, static-pressure, and humidity
for a clean room application
Selection Charts
System 450 Modules Ordering Information
Product Code
Number
Description
C450CBN-1 Control Module
1
with LCD, Four-Button Touch Pad, and Relay Output; Provides one relay output (Single-Pole, Double-Throw [SPDT] line-
voltage relay) for On/Off control.
C450CCN-1 Control Module
1
with LCD, Four-Button Touch Pad, and Relay Output; Provides two relay outputs (SPDT line-voltage relays) for On/Off
control.
Release Fall 2009 Control Module
1
with LCD, Four-Button Touch Pad, and Analog Output; Provides one analog output (0-10 VDC or 4-20 mA self-selecting
signal) for proportional control.
Release Fall 2009 Control Module
1
with LCD and Four-Button Touch Pad, and Analog Output; Provides two analog outputs (0-10 VDC or 4-20 mA self-
selecting signals) for proportional control.
C450SBN-1 Relay Output Expansion Module; Provides one relay output (SPDT line-voltage relay) for On/Off control.
C450SCN-1 Relay Output Expansion Module; Provides two relay outputs (SPDT line-voltage relays) for On/Off control.
Release Fall 2009 Analog Output Expansion Module; Provides one analog output (0-10 VDC or 4-20 mA self-selecting signal) for proportional control.