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KMC CSC-3501, 3505 Linear Reset Volume Controllers

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The KMC CSC-3501 and CSC-3505 Linear Reset Volume Controllers are sub-master air velocity controllers designed for use on VAV terminal units in HVAC systems where linear reset is necessary. They are ideal for dual-duct constant volume systems, and exhaust or supply tracking systems. The CSC-3501 has a one-inch differential pressure range. The CSC-3505 has a two-inch differential pressure range.

The velocity setpoint is linearly reset between preset minimum and maximum limits by a master controller, usually a room thermostat.

The CSC-3501/3505 multifunctional controllers are used for either direct or reverse acting reset for normally open or closed terminal units. The reset start point and reset span (the changes between the preset minimum and maximum flows) are factory set but field adjustable. Once set, the span is always constant regardless of the minimum and maximum limit settings.




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