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Kmc Controls CSC-2008 reset volume controller, compact beige plastic housing with adjustment dials and pneumatic ports

Kmc Controls

Kmc Controls CSC-2008 Reset Volume Controller hardware

SKU CH-HXZJ-V90KG

Pneumatic reset volume controller for VAV systems with a 15 to 30 psi operating range and 11.5 scim air consumption

  • TypeSub Master
  • Reset start point adjustable 3 to 8 psi for flexible control
  • Operating pressure range 15 to 30 psi suits VAV systems
  • Air consumption 11.5 scim indicates efficient pneumatic operation
  • Signal pressure maximum 6 in wc for precise damper response
  • Reverse acting controller action for cooling applications

Reset Volume Controller for VAV Systems

The Kmc Controls CSC-2008 is a pneumatic sub-master controller designed for variable air volume installations. It requires a thermostat configured for cooling reverse acting and heating direct acting to operate correctly. This hardware suits building automation professionals managing pressure-dependent airflow regulation in commercial HVAC networks.

Factory-Set Pneumatic Operating Range

The unit ships with a reset start point factory setting of 3 psi and functions within a supply pressure window of 15 to 30 psi. Air consumption is rated at 11.5 scim while the maximum signal pressure reaches 6 in wc. Controller action is reverse acting, providing predictable pressure modulation during normal system demand.

Adjustable Reset Start Point Span

The reset start point can be field-adjusted between a minimum setting of 3 psi and a maximum setting of 8 psi. Minimum setpoint range spans 0 to 1 in wc with the maximum setpoint range extending to minimum plus 1 in wc. This adjustment span is the single specification that determines whether the controller matches the required duct static pressure strategy.

Highlights

  • Reset start point adjustable 3 to 8 psi for flexible control
  • Operating pressure range 15 to 30 psi suits VAV systems
  • Air consumption 11.5 scim indicates efficient pneumatic operation
  • Signal pressure maximum 6 in wc for precise damper response
  • Reverse acting controller action for cooling applications

Specifications

BrandKmc Controls
TypeSub Master

Questions about this item

How do I install the KMC CSC-2008 and set the reset start point correctly?

Mount the controller, connect pneumatic lines to supply and thermostat ports, then adjust the reset start point between 3 psi and 8 psi using the calibration screw; the factory setting is 3 psi.

What maintenance will the CSC-2008 require over time?

Periodically verify supply pressure stays within 15 to 30 psi, check air consumption near 11.5 scim for leaks, and recalibrate the reset start point if setpoint drift occurs.

What pressure limit will I hit first during continuous operation?

The signal pressure maximum of 6 in wc is the first limit reached under sustained use, capping the controller output before supply pressure reaches its 30 psi ceiling.

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