AIR-COOLED LIQUID CHILLERS WITH INTEGRATED HYDRONIC MODULE 30RB 602-802
Features and advantages
Compressors - Low-noise scroll compressors with low vibration level - The compressor assembly is installed on an independent chassis and supported by ﬂexible antivibration mountings - Dynamic suction and discharge piping support, minimising vibration transmission (Carrier patent) - Acoustic compressor enclosure, reducing radiated noise emissions (option) Condenser section - Condenser coils in V-shape with an open angle, allowing quieter air ﬂow across the coil - Low-noise 4th generation Flying Bird fans, made of a composite material (Carrier patent) are now even quieter and do not generate intrusive low-frequency noise - Rigid fan installation for reduced noise (Carrier patent)
Non-ozone depleting R-410A refrigerant - Chlorine-free refrigerant of the HFC group with zero ozone depletion potential - Very efﬁcient - gives an increased energy efﬁciency ratio (EER) - 40% reduction in the refrigerant charge through use of the micro-channel heat exchangers (MCHE) Leak-tight refrigerant circuit - Brazed refrigerant connections for increased leaktightness - Reduction of leaks as no capillary tubes and ﬂare connections are used - Veriﬁcation of pressure transducers and temperature sensors without transferring refrigerant charge
State-of-the-art concept - Cooperation with specialist laboratories and use of limit simulation tools (ﬁnite element calculations) for the design of the critical components, e.g. motor supports, suction/discharge piping - Compressor control box installed on the cold side of the compressor (Carrier patent) - All-aluminium micro-channel heat exchanger (MCHE) offers 3.5 times higher corrosion resistance than a conventional coil. The all-aluminium construction eliminates the formation of galvanic currents between aluminium and copper that are responsible for the coil corrosion in saline or corrosive atmospheres. Auto-adaptive control - Control algorithm prevents excessive compressor cycling and permits reduction of the water quantity in the hydronic circuit (Carrier patent). - Automatic compressor unloading in case of abnormally high condensing pressure. If an anomaly occurs (e.g. fouled condenser coil, fan failure) AquaSnap continues to operate, but at reduced capacity. Exceptional endurance tests - Corrosion resistance tests in salt mist in the laboratory - Accelerated ageing test on components that are submitted to continuous operation: compressor piping, fan supports - Transport simulation test in the laboratory on a vibrating table. The test is based on a military standard and equivalent to 4000 km by truck.
Easy and fast installation
Simpliﬁed electrical connections - Main disconnect switch with high trip capacity (see table of options) - 24 V control circuit without risk from a transformer included Fast commissioning - Systematic factory operation test before shipment - Quick-test function for step-by-step veriﬁcation of the instruments, electrical components and motors
Increased energy efﬁciency at part load - Eurovent energy efﬁciency class (in accordance with EN14511-3:2011) B to D - The refrigerant circuit includes several compressors connected in parallel. At part load, around 99% of the operating time, only the compressors that are absolutely necessary operate. At these conditions the compressors operating are even more energy efﬁcient, as they use the total condenser and evaporator capacity. - The electronic expansion device (EXV) allows operation at a lower condensing pressure (EER optimisation). - Dynamic superheat management for better utilisation of the evaporator heat exchange surface - All-aluminium micro-channel condenser (MCHE), more efﬁcient than a copper/aluminium coil Reduced maintenance costs - Maintenance-free scroll compressors - Fast diagnosis of possible incidents and their history via the Pro-Dialog Plus control - R-410A refrigerant is easier to use than other refrigera