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WebIf your business uses a pneumatic HVAC system, direct digital controls can help you cut costs and operate more efficiently. Click to learn more! (816) 241-4442 (913) 320-0215 … Direct digital control is often used to control heating, ventilating, and air conditioning devices such as valves via microprocessors using software to perform the control logic. Such systems receive analog and digital inputs from the sensors and devices and, according to the control logic, provide analog or digital outputs. These systems may be mated with a software package that graphically allows operators to mon… ethelwold ealdorman of east anglia

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