KMC Controls CSC-2001 Control

The KMC Controls CSC-2001 is a high-precision pneumatic VAV controller designed for technical accuracy in Variable Air Volume systems. As a differential-pressure sub-master controller, it specializes in regulating normally open dampers by resetting the velocity setpoint between adjustable minimum and maximum airflow limits. This direct acting unit features a 0 to 10 molded reference dial for intuitive field adjustments, allowing for 14.4 scim air consumption at a 20 psi main air supply. Engineered for single-duct applications, the CSC-2001 ensures linear reset performance based on signals from a master controller, typically a room thermostat.

Contractors favor this model for its reset volume control consistency and the ability to maintain independent minimum and maximum airflow settings. The beige ABS housing provides durability for typical mechanical room environments, supporting an operating range of 40 to 120 degrees Fahrenheit. For optimal performance, the unit must be calibrated in its mounting plane (horizontal or vertical) to ensure the differential pressure sensor maintains 0-1 inch wc sensitivity. This VAV reset controller is a reliable replacement for outdated HVAC pneumatic controls, ensuring precise damper automation and thermal comfort.

• Dual-Knob Calibration: Features separate manual adjustment knobs for fine-tuning HI and LO airflow limits.
• Precise Reset Band: Operates within an 8 to 13 psig reset pressure range, ensuring compatibility with standard pneumatic thermostats.
• Visual Reference: The integrated 0-10 reference dial simplifies setpoint verification and field troubleshooting.
• Flexible Mounting: Designed for horizontal mounting (dial up) to maintain diaphragm sensitivity and VAV box accuracy.
• Standardized Connectivity: Utilizes 1/4 inch O.D. push-on fittings for rapid integration into existing pneumatic tubing networks.

How do I set the minimum (LO) flow limit on the CSC-2001?
The center knob (LO) must be set first with 0 psi at the "T" port. Use a flow hood or Magnehelic gauge to verify the actual cfm at the terminal unit while adjusting.

Is this unit compatible with normally closed (NC) dampers?
No, the CSC-2001 is specifically designed for normally open (NO) dampers. For normally closed applications, the gray-housed CSC-2002 or equivalent reverse-acting model is required.

What air quality is required for long-term reliability?
The system must be supplied with clean, dry control air. Any oil or moisture contamination in the 15-30 psig main air line will cause internal failure and signal drift.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.