Carlo Gavazzi
HVAC Systems
Designed to Meet Market Requirements
It is becoming more and more important to have an energy-efficient integrated HVAC system for buildings. That is why HVAC components, such as Heat Pumps, Rooftops, Chillers and Air Handling Units need more effective control and additional functions so as to improve overall performance.
Communication is important, both for the building management system, using buses such as BACnet, and for the individual units, where Modbus implementation is becoming more and more common, involving components such as the main controller, the compressor, the expansion valve, the energy meter and the soft starter.
Our energy meters and soft starters include Modbus communication, facilitating better system management, thus reducing costs, enabling quicker fault-finding and providing increased flexibility. Thanks to these features it is now possible to be advised if and when the system is under-performing (too much electrical energy for the thermal energy delivered). In addition, if a failure should occur, a remote communication delivers an alarm to the supervising system, resulting in shorter down time and quicker and less expensive maintenance.
Monitoring functions on the 3-phase supply (for values such as phase sequence, phase loss or voltage level) facilitate the reduction of the number of failures due to abnormal grid conditions, improving machine reliability in providing the thermal delivery. Our state-of-the-art range of soft starters for scroll compressor control provides our customers with additional features beyond simple soft starting and alarm indication.
Thanks to the patented auto-adaptive algorithm, they improve compressor lifetime, reduce refrigerant leakage, lower the noise impact of the machine and help to avoid possible utility fines.
Source: http://www.gavazzi-automation.com/Download//Pdf/HVAC%20BRO%20ENG%20REV%2004%202013_12.pdf
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