Lightstream Screw IR-COOLED CHILLERS WITH INVERTER SCREW COMPRESSORS CLSS ENERGY EFFICIENCY MICROCHNNEL CONDENSERS INVERTER SCREW COMPRESSORS VILBLE WITH R34ze 475-355 VILBLE IN 8 FRME SIZES, TOTL 8 MODELS WITH HUGE RRY OF OPTIONS ND CCESSORIES SCREW INVERTER WWW.KLTR.DE R34a/R34ze EC-FNS MICROCHNNEL HET RECOVERY
Ultimate efficiency at any cooling load LIGHTSTREM SCREW INVERTER CHILLERS OFFER N ULTIMTE EFFICIENCY T BOTH FULL ND PRTIL LODS BY COMBINING FREQUENCY-CONTROLLED SCREW COMPRESSORS ND LTEST FN ND CONDENSER TECHNOLOGIES PPLIED IN MODULR W-BNK DESIGN. The benefits at a glance: ENERGY EFFICIENCY RTIO UP TO 3.56 ESEER UP TO 5.75 CPCITY ON DEMND INTELLIGENT HED PRESSURE CONTROL HIGH EVPORTION TEMPERTURES LOW CONDENSING TEMPERTURES 6.0 5.75 Inverter screw compressor Screw compressor COP 85% 3.0 3.5 4.0 4.5 5.5 ESEER OF UP TO 5.0 Efficiency of compressors: COP value Capacity (%) 0 0 40 60 80 00 Exact capacity match Frequency-controlled screw compressors The compact frequency-controlled screw compressors of Lightstream Screw Inveter series chillers are especially suitable for systems that frequently operated under part-load. These compressors achieve also impressively high full-load efficiency and significantly improved ESEER and SCOP values. With an average ESEER value of 5.6, Lighstream Screw Inverter chillers are setting new benchmarks in the industry. The compressors monitors its own application limits and counicate via Modbus with the master system controls. The integrated data log can be used at any time to analyse operation over the running time and optimise the system settings. Max-Reger-Str. 44 9057 Schwaig Germany +49(0)9 75 30
Microchannel condensing coils Better heat transfer. Lower condensing temperatures. Higher efficiency. Microchannel condensers used in Lighstream Screw Inverter design give a number of advantages, including higher heat transfer rate, low airside pressure drops, and closer approach temperatures. The end result is up to 40% higher energy efficiency in comparison to traditional fin/tube heat exchanger design. Smaller coil face, thin design, up to 50% less weight, and less refrigerant charge translate to lower system cost. Microchannel condensers used in chillers are true HVC coils developed and optimized especially for refrigeration applications and enable remarkable low condensing temperatures. 00 75 50 EEV is controlled by a driver which regulates its opening according to the performance levels required by the system and guarantees the minimal overheating under all operating conditions. (%) The electronic expansion valve (EEV) reduces the need for high head pressure when running at part load and lower ambient conditions. EC fans C fans Savings 5 5% energy savings through the use of EEV Fan motors efficiency comparison irflow (%) 5 50 75 00 The control hub of Lightstream Screw Invefter chillers is a sophisticated controller and advanced software developed for efficient operation of the chillers based on screw compressors. It manages and optimizes the chiller s performance, giving the complete control over the system for plant operator. Intelligent fan system EC-type fans with reduced power consumption The new generation fan system not only reduces power consumption by up to 30% while easily managing the extraordinary high volume flows it also works at much reduced operating noise. The smart fan system includes the unique fans with bionic wing concept, the most advanced EC motor technology, and multifunctional air diffusers, resulting in an extra economic efficiency for the customers. EC motor technology does not provide savings only during full-load operation - it is exactly when operating under partial load that EC motors lose much less of their efficiency. Max-Reger-Str. 44 9057 Schwaig Germany +49(0)9 75 30
Flooded evaporator The flooded evaporator enables to operate at the higher saturated evaporating temperature when compared to many others evaporator types and allows achieving higher cooling capacity with correspondingly higher efficiency. The refrigerant pool behaves as a flywheel, allowing the controls of the flooded evaporator to track the varying load of a batch process, while optimized tube geometry ensures optimal refrigerant distribution. Grooved connections We use grooved end connections because of their rigidity, flexibility, noise and vibration attenuation, and easy of installation and maintenance. The groove is made by cold forming or machining a groove into the end of a pipe. gasket encompassed by the coupling housing is wrapped around the two grooved pipe ends, and the key sections of the coupling housing engage the grooves. The bolts and nuts are tightened with a socket wrench or impact wrench. Package, options and accessories Description General nti-vibration mounts MCHE electrocoat High ambient kit nti-vibration springs MCHE thermoguard Low noise design (grades -4) Soundproof compressor enclosures MCHE mesh guard Partial heat recovery system High-sided paneling -0 C brine kit Total heat recovery system Pump(s) antifreeze heater Flowmeter Oil cooling system / oil pump Service valves (compr. suction/discharge) Safety valves on high/low pressure sides Electronic expansion valves Pressure indication on high/low pressure sides Thermal insulation EC fans High-efficient fan diffusers Touch screen HMI Dual power supply w/ TS Sequence management Electric panel heater BMS connectivity Compressor operation indication Compressor power factor capacitor SNMP connectivity Remote monitoring software Soft-start system (fixed-speed compressor) Energy monitoring Pumping group control system Waterside Pumping group (single/twin pump variable/fixed speed) Refrigerant side irside C fans Electric and controls Standard feature Optional feature s and model identification F9 F0 F F Length 5655 685 7740 890 985 0995 90 3080 Width 50 50 50 50 50 50 50 50 Height 550 550 550 550 550 550 550 550 Compressors type V V Nominal capacity Condenser Inverter screw W W-bank microchannel Condenser size No. of condenser banks No. of refrigerant circuits Max-Reger-Str. 44 9057 Schwaig Germany +49(0)9 75 30 600 W 6 / R34ze Refrigerants with low global warming potential (GWP) are becoming more and more important in the refrigeration and air conditioning industry in Europe and beyond. R34ze features low GWP of one and zero ozone depletion potential, thus providing the environmental leadership while achieving the best energy performance levels for applications.
Technical Specs Cooling capacity V450 V500 V550 V550 V600 V650 V700 V750 V800 W5/ W5/ W5/ W6/ W6/ W6/ W6/ W6/ W7/ 475 495 565 65 645 675 70 780 / 3.5 3.48 3.4 5.45 5.47 5.56 5.4 5.5 5.60 5.75 5.6 440 4590 5085 500 545 5605 560 6605 6800 4.0 0.0 34.0 35.0 5.0 58.0 68.0 8.0 9.0 73 8 0 06 30 40 55 75 93 EER ESEER Net weight Compressors Semi-hermetic compact screw bsorbed current Fans C-type axial 0 0 0 4 40000 40000 40000 88000 88000 88000 88000 88000 336000 irflow 9.0 9.0 9.0.8.8.8.8.8 6.6 67. Water flow rate 8 85 9 97 05 6 34 Max flow rate 3 30 39 50 6 7 8 8 00 Water volume l 87.7 9.6 99. 07. 5..8 30.0 30.0 4.8 bsorbed current Evaporator Flooded shell-and-tube R34a Charge 46 3 3 3 3 306 38 38 38 () Coolant: Water 00%; Coolant temperatures: 0/5 C; mbient temperature: 35 C Cooling capacity V850 V900 V950 V000 V00 V50 V00 V300 V350 W7/ W8/ W8/ W9/ W0/ W0/ W/ W/ W/ 80 890 950 05 00 50 5 85 355 F9 F0 F0 F F F / 3.47 3.56 3.40 5.7 5.64 5.7 5.67 5.63 5.70 5.7 6800 745 805 8650 9000 900 945 945 9765 06.0 0.0 35.0 53.0 65.0 9.0 30.0 330.0 340.0 34 334 358 385 404 444 47 503 57 EER ESEER Net weight Compressors Semi-hermetic compact screw bsorbed current Fans C-type axial 4 6 6 8 0 0 4 336000 384000 384000 43000 480000 480000 58000 58000 576000 irflow 6.6 30.4 30.4 34. 38.0 38.0 4.8 4.8 45.6 67. 76.8 76.8 86.4 96.0 96.0 05.6 05.6 5. Water flow rate 4 54 6 76 90 98 0 0 33 Max flow rate 0 30 4 67 80 303 37 33 344 Water volume l 56.0 64.0 7.0 90.0 99.8 6.0 5.6 35.5 45. bsorbed current Evaporator Flooded shell-and-tube R34a Charge 530 530 () Coolant: Water 00%; Coolant temperatures: 0/5 C; mbient temperature: 35 C MODELS 8 VILBLE The development of Kaltra products and services is continuous and the information in this document may not be up to date. Please check the current position with Kaltra. Max-Reger-Str. 44 9057 Schwaig Germany +49(0)9 75 30