For technicians servicing VAV terminal units, the KMC Controls CSC-2007 is a trade-standard pneumatic reset volume controller engineered for precision airflow management. Operating as a sub-master velocity controller, this unit is built for direct-acting (DA) cooling and normally open (NO) damper configurations. It features a specific differential pressure range of 0 to 1 inch water column (wc), making it ideal for low-velocity applications where maintaining tight setpoints is critical. The CSC-2007 utilizes a low air consumption design, pulling only 11.5 SCIM at 20 PSIG, which reduces the load on the control air system. With clear adjustable minimum and maximum velocity limits, you can field-calibrate the airflow without replacing the entire VAV controller. This model is constructed from durable ABS and includes a mounting bracket for horizontal or vertical orientation. For proper HVAC pneumatic controls integration, ensure a clean, dry air supply between 15 and 30 PSIG to prevent port contamination and hunting. Key Benefits Precise Setpoint Control: Optimized for 0-1" wc ranges with an output sensitivity of 5 PSI per 0.02" wg for granular adjustment. System Efficiency: Minimal 11.5 SCIM air consumption ensures localized VAV terminal unit efficiency and lower compressor run times. Field Versatility: Independent knobs for LO and HI limit settings allow for easy calibration to specific branch pressure requirements. Standardized Integration: Uses universal 1/4" O.D. push-on fittings for "M", "T", and "B" ports, ensuring rapid pneumatic HVAC retrofits. Industrial Durability: ABS flame-retardant housing supports operational temperatures from 40?? to 120?? F. Common Questions How do I handle a "negative reset" condition during calibration? Avoid turning the LO knob fully counterclockwise; doing so can force the internal reset lever into a negative position, requiring higher thermostat pressure to initiate airflow. What thermostat action is required for heating? While the cooling side requires a Direct Acting (DA) thermostat, the heating side must use a Reverse Acting (RA) thermostat for proper reset logic. Does orientation affect the 0-1" wc calibration? Yes, these units are position-sensitive. Always calibrate the KMC CSC-2007 in the same plane (horizontal or vertical) in which it will be permanently mounted. 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.
