Tag Archives: building automation systems

Air Handler Equipment DDC Controllers | HVAC Control

Air Handler Equipment DDC Controllers

Air Handler Equipment DDC Controllers | HVAC Control

Air Handler Equipment DDC Controllers - These controllers will control an air handler once the wiring is completed. The panel is freshly mounted and waiting for the technician to run the piping and pull the wire from the control points. Other points, such as outside air, temperature sensors in piping or duct work, flow meters, actuators, or other control points can be terminated to these controllers and the data collected from those input points can be networked over the entire building automation system through the communication trunks. Included in this panel are: a terminal strip connection point for line voltage and control voltage, a transformer to step-down line voltage to the required control voltage of 24 volts which powers the controllers and a surge arrestor which is a requirement on many government jobs.

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How DDC Status Works – Methods and Types | HVAC Control

How DDC Status Works - DDC and Status – Is the Device On or Off

How DDC Status Works? DDC Status Methods and Types

This is a current switch sometimes referred to as a CT switch. This switch has an adjustable range from 1 to 200 Amperes. This switch also has a trip setting so it will trip if an adjusted set amount of amperes is exceeded.

The basics of DDC include learning about the status of a fan or a compressor or pump. How does a DDC controller read the status of the device it is monitoring? There are several ways to prove a device is running and some pros and cons of each type of device used to monitor on or off status. This is a basic DDC guide or reference to help a person understand the basics of DDC status and how it works. When one learns how DDC status works they can improve their troubleshooting skills. Too many maintenance technicians and others including HVAC technicians don’t understand DDC systems or building automation systems and are therefore crippled when it comes to troubleshooting DDC systems. High Performance HVAC hopes to change that and help HVAC techs and HVAC maintenance staff learn the basics of DDC systems including how DDC status works. Once someone understands the basics about DDC a light will turn on and they will see that DDC is not really rocket science.

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HVAC Controls Building Automation | Heating & Cooling Control

HVAC Controls Building Automation  - Modern buildings use DDC controls for building automation systems. Building automation systems offer energy savings because they are energy management systems. These systems allow management to automatically control many processes involved with HVAC systems, lighting, and emergency systems. The systems are generally hooked up to the internet so monitoring and control can be done worldwide.

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DDC Automated Logic M-Stack | HVAC Control

DDC - Automated Logic M-Stack - HVAC Control

DDC Automated Logic M-Stack

DDC Automated Logic M-Stack - This Automated Logic M-Stack provides control for multiple pieces of HVAC equipment and integrates network communication all in one single stack. This direct digital control system is integrated with pnuematic controls. DDC allows automated HVAC control processes to take place and adds higher efficiency to an HVAC system.

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Building Automation Systems | HVAC Control

Building Automation Systems – HVAC ControlMany people wonder what Building Automation Systems (BAS) do. BAS is mainly used in commercial HVAC control systems and energy management system applications. Building Automation itself is an energy management system which saves management companies and building owners by efficiently controlling air conditioning and heating comfort and process systems. BAS is where mechanical and electrical systems and equipment are joined with microprocessors that communicate with each other and possibly to a computer. This computer and controllers in the building automation system can be networked to the internet or serve as a stand alone system for the local peer to peer controller network only. Additionally, the BAS controllers themselves do not need a computer to process the control functions as the controllers have their own internal processors.

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MONDAY, JULY 28, 2014