Description - PENN Controls - LIT-1900706 - C450CPN - System 450 Multi-Purpose Modular Control System - C450CPN Standard Control Module One Analog Output

Important: Use this System 450™ modular control assembly only as an operating control. Where failure or malfunction of the System 450 modular control assembly could lead to personal injury or property damage to the controlled equipment or other property, additional precautions must be designed into the control system. Incorporate and maintain other devices, such as supervisory or alarm systems or safety or limit controls, intended to warn of or protect against failure or malfunction of the System 450 modular control assembly.

Refer to the System 450 Series Modular Control Systems with Standard Control Modules Technical Bulletin (LIT-12011459), the System 450 Series Modular Controls Product Bulletin (LIT-12011458), and the installation instructions for product specifications, detailed installation procedures, and important product safety information.

You can use a System 450 Control Module with analog output, a temperature sensor, and a Y45AA-9 Rheostat to control air temperature at the sensor by modulating an M9200 Series Actuator driving an outside air damper.

Use the rheostat to manually set the minimum air position of the damper between 0 and 50%. The temperature sensed at Sn-1 controls the damper position between the rheostat adjusted minimum position (0 to 50%) and full open.

Set the minimum output on the C450CPN-x Control Module to 0% rotation and then use the Y45AA-9 Rheostat to set the minimum position remotely.

Figure 1. Wiring for Remote 0 to 50% Minimum Positioning Application

Figure 2. UI Screens for Wiring for the Remote 0 to 50% Minimum Positioning Application Example