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Electronic controllers in civil and industrial applications for chiller units with capacities from 5 kW to over 50 kW
11/03/2005
Electronic controllers in civil and industrial applications for chiller units with capacities from 5 kW to over 50 kW
The "CUSTOMER" is an Italian company that offers a wide range of products for the air-conditioning of civil and residential environments. It manufactures water chillers and reverse cycle heat pumps, with capacities from 5 to over 50 kW, and a vast range of fan coils and related accessories.
The customer required an electrical panel with different electrical power ratings, sized for the specific units, complete with the electronic controller for the management of the chiller units, in the versions one circuit, two compressors and two circuits, two compressors.
In both cases, it used parametric controllers supplied by the competition, which did not allow serial connection via the network to other units, not connection to a supervisor, and for this reason were limited to the management of the hydronic system.
In addition, the controllers did not have the features to manage all the required I/O, and therefore external electromechanical devices needed to be added (compressor thermal cutout, electromechanical protectors) inside the electrical panel. These controllers also had the inconvenience of being parametric, and consequently were quite inflexible for hydronic applications.
CAREL has made two programmable control boards (one per type), customised (compatible with the pCO sistema) and supplied exclusively to the "CUSTOMER", made using a new design concept that significantly speeds up the time to market. This solution involves the assembly of logical functional modules on a single printed circuit board, made to the specific requirements of the customer, giving the same reliability as a standard product (the same as the pCO sistema controllers) even for smaller production lots (PGE solution).
The addition of new functions has brought a significant reduction to the cost the control solution, above all due to the reduction in double components and labour costs. The customer can thus use a programmable controller for the same final cost of the electrical panel.
+40P200000
The customer required an electrical panel with different electrical power ratings, sized for the specific units, complete with the electronic controller for the management of the chiller units, in the versions one circuit, two compressors and two circuits, two compressors.
In both cases, it used parametric controllers supplied by the competition, which did not allow serial connection via the network to other units, not connection to a supervisor, and for this reason were limited to the management of the hydronic system.
In addition, the controllers did not have the features to manage all the required I/O, and therefore external electromechanical devices needed to be added (compressor thermal cutout, electromechanical protectors) inside the electrical panel. These controllers also had the inconvenience of being parametric, and consequently were quite inflexible for hydronic applications.
CAREL has made two programmable control boards (one per type), customised (compatible with the pCO sistema) and supplied exclusively to the "CUSTOMER", made using a new design concept that significantly speeds up the time to market. This solution involves the assembly of logical functional modules on a single printed circuit board, made to the specific requirements of the customer, giving the same reliability as a standard product (the same as the pCO sistema controllers) even for smaller production lots (PGE solution).
The addition of new functions has brought a significant reduction to the cost the control solution, above all due to the reduction in double components and labour costs. The customer can thus use a programmable controller for the same final cost of the electrical panel.
+40P200000
