Description - PENN Controls - LIT-1900704 - C450CQN - System 450 Multi-Purpose Modular Control System - C450CQN Standard Control Module Two Analog Outputs

Controlling Fan Speed on a Multi-Circuit Condenser Application Note
Product
Controls > Multi-Purpose Modular Controls > C450CQN Standard Control Module Two Analog Outputs
Document type
Application Note
Document number
LIT-1900704
Revision date
2020-04-15
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.

The following illustration shows a C450CQN-1 Control Module providing high analog signal selection to control a VFD67 Variable Frequency Drive (VFD), which is used to control fan speed on a multi-circuit condenser.