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Table Of Contents

System 450™ Series Modular Controls Product Bulletin 1

Refer to the QuickLIT Web site for the most up-to-date version of this document.

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 HVACR and commercial or 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 control modules are multipurpose and

field configurable out-of-the-box; each module is

designed for use in temperature, pressure, and

humidity systems. A System 450 control system can be

easily assembled and configured to monitor and

control temperature, pressure, and humidity

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 outputs based on any of

the three available inputs.

A control system may consist of Single-Pole,

Double-Throw (SPDT) relay outputs, (0–10 VDC or 4–

20 mA) analog outputs, or any combination of relay and

analog outputs; and any combination of input sensors

or transducers.

Figure 1: System 450 Control System with

Control, Power, and Expansion Modules

Table 1: Features and Benefits (Part 1 of 2)

Features 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.

Up to Three Hard-Wired Input Sensors and

Up to Ten Relay or Analog Outputs (In Any

Combination) per Control System

Allow you to build complex custom control systems while reducing your

control system cost to only the cost of the required components.

Control Modules with Bright Backlit LCDs

and Four-Button Touchpad User Interfaces

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 HVACR 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.

System 450™ Series Modular Controls

Product Bulletin

C450xxx-x

Code No. LIT-12011458

Issued July 24, 2012

Supersedes March 14, 2012

Summary of content (23 pages)

PAGE 1
System 450™ Series Modular Controls Product Bulletin Code No. LIT-12011458 C450xxx-x Issued July 24, 2012 Supersedes March 14, 2012 Refer to the QuickLIT Web site for the most up-to-date version of this document. 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 HVACR and commercial or industrial process applications.
PAGE 2
Table 1: Features and Benefits (Part 2 of 2) Features Benefits High Input Signal Selection Enables your control system to monitor temperature, pressure, or humidity conditions 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.
PAGE 3
System 450 Applications • You can create a wide variety of custom, application-specific control systems with System 450 modules.
PAGE 4
System 450 Control Modules Control Modules with Relay Outputs The System 450 control module is the supervisor of your control system and the interface for the system’s inputs, supply power, and outputs. Figure 2 shows an example of the available System 450 control modules. See Table 3 in Ordering Information for information on all of the available control modules. C450CBN-x and C450CCN-x model control modules have SPDT relay output.
PAGE 5
Stand-Alone Multipurpose Controller The versatile System 450 control module can also be easily configured out-of-the-box as a stand-alone control, which can provide SPDT control or proportional analog signal control (depending on the model) for a wide range of HVACR and commercial/industrial applications.
PAGE 6
Proportional Plus Integral Control In addition to standard proportional (only) control analog signals, a System 450 control system provides integral control capability and six time integral selections that enable you to set up analog outputs to generate a proportional plus integral signal. In many system control loops, proportional plus integral control provides more precise control by driving the controlled system closer to setpoint, even when under large load conditions.
PAGE 7
Table 9 on page 17 provides product code numbers and model information for compatible P499 Series pressure transducers (Figure 9). System 450 Compatible Humidity Sensors Table 7 on page 16 provides product code numbers and information about the compatible HE67SE Type humidity sensors with integral A99B temperature sensor (Figure 7 and Figure 8).
PAGE 8
Standard System 450 Control Systems Figure 10 shows a standard System 450 control system for a heating and cooling application that uses temperature and pressure input sensors; and relay and analog outputs to control the system equipment.
PAGE 9
Figure 11 shows a standard System 450 control system for a clean room application that uses temperature, pressure, and humidity input sensors; and relay and analog outputs to control the equipment.
PAGE 10
System 450 Reset Control Systems Figure 12 shows a System 450 Reset Control system that uses an outdoor air temperature master sensor and a supply water temperature sensor configured to reset the boiler supply water temperature relative to the outdoor air temperature. This control system can also be configured to use the Load Balancing feature to equalize the time that each of the four boilers run.
PAGE 11
Figure 13 shows a System 450 Reset Control System for a natatorium/swimming pool application that uses temperature and humidity input sensors; and analog and relay outputs to control the heating equipment, dehumidification equipment, make-up air dampers, and exhaust air dampers.
PAGE 12
Hybrid Analog Output and High Input Signal Selection Control Figure 14 shows a System 450 control system that uses the hybrid analog output to control motor speed on an Electronically Commutated (EC) condenser fan motor and the High Input Signal Selection feature to provide the pressure input signal according to the higher of the two pressure values sensed at the two transducers.
PAGE 13
System 450 Differential Control Figure 15 shows a System 450 solar water heating application that uses the Differential Control feature to enable a solar panel circulating pump whenever the temperature at the solar panel exceeds the temperature in the solar water storage tank by a differential of 10 F° (5.6 C°). The space heating circulating pump is enabled whenever the solar water storage tank temperature reaches 75°F (23.9°C) at Sn2 and the controlled space is calling for heat at Sn3.
PAGE 14
Ordering Information Table 2 provides ordering information for System 450 Series modules and accessories. Table 3, Table 7, Table 8, and Table 9 provide ordering information for System 450 compatible sensors, transducers, and accessories. Table 2: System 450 Modules and Accessories Ordering Information (Part 1 of 2) Product Code Number Product Description C450CBN-2C Control Module1 with LCD, Four-Button Touchpad UI, and Relay Output; provides one relay output (SPDT line-voltage relay) for SPDT control.
PAGE 15
Table 2: System 450 Modules and Accessories Ordering Information (Part 2 of 2) Product Code Number Product Description C450SCN-3C Relay Output Expansion Module; provides two SPDT line-voltage relay outputs. Note: This model is currently available only in Europe. C450SPN-1C Analog Output Expansion Module; provides one analog output (0–10 VDC or 4–20 mA self-selecting signal) for proportional control.
PAGE 16
Table 3: System 450 Compatible A99B Temperature Sensors and Accessories Ordering Information (Part 2 of 2) Product Code Number Product Description A99-CLP-1 Mounting clip for A99 temperature sensor ADP11A-600R Conduit adaptor, 1/2 in.
PAGE 17
Table 8: System 450 Compatible Low Pressure Differential Transducer Ordering Information1 Product Code Number Product Description DPT2650-0R5D-AB Low Pressure Differential Transducer: 0 to 0.5 in. W.C. (System 450 Sensor Type: P 0.5) DPT2650-2R5D-AB Low Pressure Differential Transducer: 0 to 2.5 in. W.C. (System 450 Sensor Type: P 2.5) DPT2650-005D-AB Low Pressure Differential Transducer: 0 to 5.0 in. W.C.
PAGE 18
Table 9: System 450 Compatible P499 Series Electronic Pressure Transducer and WHA-PKD3 Wire Harness Ordering Information1 (Part 2 of 2) Product Code Number Product Description P499RAP-107C Electronic Pressure Transducer: 0 to 750 psig; 1/8 in.-27 NPT External Thread (Style 49) Order WHA-PKD3 type wire harness separately. P499RAP-107K Electronic Pressure Transducer Kit: 0 to 750 psig; 1/8 in.-27 NPT External Thread (Style 49) WHA-PKD3-200C wire harness included.
PAGE 19
C450Cxx Control Modules with Analog Output (Part 2 of 2) Analog Output Voltage Mode (0–10 VDC): 10 VDC maximum output voltage 10 mA maximum output current Requires an external load of 1,000 ohm or more The AO operates in Voltage Mode when connected to devices with impedance greater than 1,000 ohm. Devices that drop below 1,000 ohm may not operate as intended with Voltage Mode applications.
PAGE 20
C450CxN Control Modules with Relay Output (Part 2 of 2) Control Construction Independently mounted control, surface mounted with Lexan® 950 enclosure suitable for DIN rail mounting or direct mounting to a hard, even surface. Dimensions (H x W x D) 127 x 61 x 61 mm (5 x 2-3/8 x 2-3/8 in.) Weight C450CBN-x: 209 g (0.46 lb) C450CCN-x: 222 g (0.49 lb) Compliance North America: cULus Listed; UL 60730, File E27734, Vol.
PAGE 21
C450RxN Reset Control Modules with Relay Output (Part 2 of 2) Dimensions (H x W x D) 127 x 61 x 61 mm (5 x 2-3/8 x 2-3/8 in.) Weight C450RBN-x: 209 g (0.46 lb) C450RCN-x: 222 g (0.49 lb) Compliance North America: cULus Listed; UL 60730, File E27734, Vol. 1; FCC Compliant to CFR47, Part 15, Subpart B, Class B Industry Canada (IC) Compliant to Canadian ICES-003, Class B limits Europe: CE Mark - Johnson Controls Inc.
PAGE 22
C450SxN Relay Output Expansion Modules Product C450SBN-x: System 450 Expansion Module with one SPDT output relay C450SCN-x: System 450 Expansion Module with two SPDT output relays Supply Power C450YNN-1 Power Supply Module or 24 (20-30) VAC Safety Extra-Low Voltage (SELV) (Europe) or Class 2 (North America) 50/60 Hz, 10 VA minimum Ambient Operating Conditions Temperature: -40 to 66°C (-40 to 150°F) Humidity: Up to 95% RH noncondensing; Maximum Dew Point 29°C (85°F) Ambient Shipping and Storage Conditi
PAGE 23
C450YNN Power Module (Part 2 of 2) Dimensions (H x W x D) 127 x 61 x 61 mm (5 x 2-3/8 x 2-3/8 in.) Weight C450YNN-1: 390 g (0.86 lb) Compliance North America: cULus Listed; UL 60730, File E27734, Vol. 1; FCC Compliant to CFR47, Part 15, Subpart B, Class B Industry Canada (IC) Compliant to Canadian ICES-003, Class B limits Europe: CE Mark - Johnson Controls Inc.