Date: 2010-01-07 17:21:38

Architecture

Network protocols

Technology

Construction

Direct digital control

LonWorks

BACnet

LonTalk

HVAC control system

Building automation

Heating

ventilating

and air conditioning

Building engineering

HVAC CONTROL SYSTEMS David Schwenk USACE Engineer Research and Development Center Background A direct digital control (DDC) system consists of microprocessor based hardware used to control a

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