Liquid chiller and water-based heat pumps without condensers and refrigerant charge 850–1394 kW

€ 62,500
Cooling capacity 850–1394 kW
The water-cooled units with screw compressor represent the best solution for commercial or industrial applications where reliability and high performance are required. The units have been designed to best meet the market demands in terms of versatility and energy efficiency, using top brand components. The stepless regulation of the cooling capacity, the use of electronic expansion valves and heat exchangers with integrated recovery systems, help to maximize energy efficiency at full load and at partial loads, achieving exceptional seasonal performance. These machines respond optimally to the complex requirements of use in the cooling of industrial processes.
Low GWP R513A refrigerant;
Seasonal energy efficiency compliant with the requirements of Directive 2009/125 / EC ErP;
High energy efficiency, especially at partial loads;
Continuous “smart stepless” regulation of the cooling capacity with self-adaptive control of the partitioning speed;
Command logic that guarantees a high degree of precision in controlling the throttling of the compressors;
Single compressor partialization up to 25% of the cooling capacity;
Heat exchangers with low water pressure drops to contain the operating costs of the pumping groups;
Integrated systems for partial or total heat recovery;
Condenser water outlet temperature up to 60 ° C.
Nominal operating conditions: evaporator IN / OUT water temperature + 12 / + 7 ° C; condensing temperature 45 ° C (UNI EN 14511: 2018).
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Description
 Standard features
High efficiency screw compressors with continuous regulation of the cooling capacity and optimized for R513A refrigerant gas;
Non-return valve and shut-off valve on compressor delivery;
Heating resistance of the compressor crankcase and phase monitor;
Automatic switches on the compressor power circuit;
Electronic expansion valves;
Single-pass shell and tube heat exchangers optimized for R513A refrigerant gas;
"Unloading" function that allows the start-up of the system and the operation of the machine, even in conditions very different from the nominal ones;
Programmable electronic controller with microprocessor with high calculation capacity and easy-to-use graphic interface, designed for connectivity to supervision systems with RS485 Modbus protocol;
Degree of protection of the electrical panel: IP54;
Testing and tests carried out in the factory on all models;
Filling of anti-freeze oil and refrigerant carried out in the factory.
Options
Soundproofing panels for compressors;
Water side reversible heat pump configuration;
MWT configuration for low evaporator water outlet temperatures (down to -8 ° C);
Partial heat recovery - desuperheater (20% heat recovery);
Total heat recovery (100% heat recovery);
Compressor suction shut-off cock;
Soft-start starters for compressors;
Power factor correction capacitors (cosф> 0.9).
Kits sold separately
Pressostatic or modulating valves for condensation control;
Flanged type hydraulic connections (evaporator side);
Victaulic or flanged hydraulic connections (condenser and recovery side);
Antivibration supports;
Remote display;
xWEB300D EVO for monitoring, control and archiving of data, based on "WEB server" technology;
Modularity kit, for master / slave network management up to 7 units.
MTA001399

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