Transcription of Air Handling Unit (AHU) Controller Technical Bulletin
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Air Handling Unit (AHU) Controller Technical Bulletin
FANs , Controller SectionTechnical BulletinIssue Date 0899 1999 Johnson Controls, No. *4 Description*4 Standards Compliance6 Installation Procedures*8 Tools Needed8 General Mounting*10 Power Line Wiring Transient Noise Precautions*11 I/O and Communication Lines Wiring Transient Noise Precautions*12 Wiring Details14 Overview*14 Wiring the Termination Board (AS-AHU100-0)*18 Power and Zone Bus Connections*20 Analog Inputs20 Binary Inputs22 Binary Outputs22 Analog Outputs*23 Wiring the Zone Terminal*23 Wiring Sensors23 Wiring Actuators*29 Phone Jack Configuration29 Remote Setpoint*30 Technical BULLETINAir Handling Unit (AHU)
When connected to the FMS, the AHU provides all point and control information to the rest of the network. The devices communicate through an Opto-22® RS-485 N2 Bus. Each AHU application uses a different sequence of operation, all of which are covered in the HVAC PRO for Windows User’s Manual (FAN 637.5 or 1637.5).
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