CoolAir Compressors (depending on the controller electronic card) are capable of sequencing between multi-units.
On the other side, in multi-compressor operations, automation systems with varying capabilities are highly recommended for efficient energy management. These automation systems use intelligent algorithms not only for compressor sequencing but also to optimize real-time performance.
The automation system actively manages all components in the compressed air network according to actual demand. Parameters like pressure, temperature, and load are kept under control, and unnecessary energy consumption is effectively prevented.
With the help of advanced automation systems, overall operating costs and carbon footprint are significantly reduced. Additionally, both local and remote monitoring and real-time analysis are fully supported for seamless operations.
Electronic Controller Cards’ Automation
1 compressor is appointed as ‘master’ and 8 compressors (including the master) can be sequenced with respect to cycle period; which is set in master compressor.
If the compressors are of Sarmak brand, they can be connected serially via “RS485” or if they are of a different brand, they can be connected serially via “RS485” connection using the “IPCB 485 Card”. They allow compressors to be prioritized according to their operating hours and wear conditions; so that the compressors are commissioned in order of priority. When the compressor(s) within the automation system fail, the compressor in stand-by is automatically taken into operation. When compressed air demand increases, stand-by compressors are automatically taken into operation.
Note: Mentioned controller cards are available in some screw compressor models, please consult.
Central Automation System (with Energy Algorithm)
The management system has the ability to manage up to 12 Compressors. It has a very different ‘energy algorithm’ than the sequencing function of Compressors’ electronic controller cards.
If the compressors are of Sarmak brand, they can be connected serially via “RS485” or if they are of a different brand, they can be connected serially via “RS485” connection using the “IPCB 485 Card”. They allow compressors to be prioritized according to their operating hours and wear conditions; so that the compressors are commissioned in order of priority. When the compressor(s) within the automation system fail, the compressor in stand-by is automatically taken into operation. When compressed air demand increases, stand-by compressors are automatically taken into operation.
It can be connected to Sarmak brand compressors with only two cables (RS485) connection, and it can be connected to other brand compressors by adding “IPCB card” which also allow them to connect via RS 485. The screen is user-friendly and it can be clearly seen which compressors are activated or deactivated. If a malfunction occurs in the compressors; it is shown on the screen. Since settings made on the screen are almost the same as the compressor electronic controller card; changes to compressor groups (e.g. service, malfunction) can be easily implemented without diffuculty. When the compressor(s) in the circuit fail or the demanded capacity increases; it automatically activates stand-by compressors.
In multiple compressor systems without a Central Automation System; some problems may occur such as ‘setting different pressure values to compressors’ (cascade). This causes great complexity and pressure fluctuation (or due to the activation of many compressors at the same time). Damage to network can be eliminated by means of this intelligent “compressor management & automation system”.
Learn more about global building automation standards on the ASHRAE official site.
