Tjernlund Products’ CPC-3 Constant Pressure Controller automatically monitors and adjusts fan speed to provide modulating, demand-based performance. The controller simultaneously checks pressure differentials and adjusts fan speeds to maintain a user-adjustable setpoint. Up to 16 individual boilers, water heaters or clothes dryers can be interlocked.

Tjernlund Products. www.tjfans.com. Circle 13

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