Differential control - PENN Controls - LIT-1900549 - C450CPW - C450CPN - C450CQN - C450CBN - C450CRN - C450CCN - C450RBN - C450RCN - C450CEN - System 450 Multi-Purpose Modular Control System - C450CBN Standard Control Module One Relay Output - C450CQN Standard Control Module Two Analog Outputs - C450RBN Reset Control Module One Relay Output - C450CRN Communications Control Module for Modbus - C450CPW-400 Hybrid Control Module for EC Motor - C450CPN Standard Control Module One Analog Output - C450CCN Standard Control Module Two Relay Outputs - C450RCN Reset Control Module Two Relay Outputs

System 450 Series Modular Controls Catalog Page
Product
Controls > Multi-Purpose Modular Controls > C450CBN Standard Control Module One Relay Output
Controls > Multi-Purpose Modular Controls > C450CQN Standard Control Module Two Analog Outputs
Controls > Multi-Purpose Modular Controls > C450RBN Reset Control Module One Relay Output
Controls > Multi-Purpose Modular Controls > C450CRN Communications Control Module for Modbus
Controls > Multi-Purpose Modular Controls > C450CPW-400 Hybrid Control Module for EC Motor
Controls > Multi-Purpose Modular Controls > C450CPN Standard Control Module One Analog Output
Controls > Multi-Purpose Modular Controls > C450CCN Standard Control Module Two Relay Outputs
Controls > Multi-Purpose Modular Controls > C450RCN Reset Control Module Two Relay Outputs
Document number
LIT-1900549
Revision date
2021-07-21
  • Air and fluid pump-flow monitoring and alarming
  • Air and fluid filter status monitoring and alarming
  • Chiller barrel flow monitoring, control, and alarming
  • Solar air and water heating applications
    Note: Communications modules add network communication to any application of your choosing, except those requiring reset, setback, or EC motor control.
Table 1. System 450 Control Module Capabilities
Control by ________ System 450 Control Modules  
Standard Communications Reset Hybrid Application Specific

C450CPN-4C

C450CQN-4C

C450CBN-4C

C450CCN-4C

C450CEN-1C

C450CRN-1C

C450RBN-3C

C450RCN-3C

 C450CPW-400C C450CCU-4C

Designed for walk-in coolers, freezer, and large display cases
Controlled Condition
Temperature X X X X X
Pressure X X - X X
Humidity X X X X -
Combination of Conditions X X X X -
Control Capabilities
On/Off Relay Control X X X X X
Analog Proportional Control (Direct and Reverse Action) X X X X -
Analog Proportional Plus Integral Control (Direct and Reverse Action) X X X X -
Combination of On/Off Relay and Analog Output Control X X X X -
Stand-Alone Control X - X X X
Multi-Stage Control (Relay or Analog) X X X X X
Network Communications - X - - -
High Input Signal Selection X X - X -
Differential Control X X - X X
Output Signal Limiting

Output Signal Update Rate

Output Signal Deadband

 X X - - -
Binary Input Control for Relay Outputs X X - - -
On/Off Duration Time Control

Minimum On/Off Time

On/Off Time Delay

 X X - - -
Temperature and Humidity Reset Control - - X - -
Scheduling and Temperature Setback Control - - X - -
Reset Setpoint Control - - X - -
Setback Scheduling - - X - -
Run-Time Balancing - - X - -
Hybrid Analog Output Control - - - X1 -
1 Only on output OUTA1.