SCHWÄMMLE GmbH & Co. KG LWH 2-22 and LWH 27-64 Cooling Water Cooler l Constant cooling water temperature for better utilization of the production equipment and much longer tool life l Constant cooling water quality Closed circuit prevents contamination or calciferous deposits l Adjustable cooling water temperature The cooling water temperature can be adjusted to between 10°C and 25°C. This ensures constant production quality. Other temperatures on request l Cost savings Since no fresh water is required for the cooling system, there are no costs of feed water or waste water treatment. This ensures short amortization times Introduction Schwärnmle cooling water coolers are low-cost industrial coolers with very high operational reliability, fast amortization and high performance. Schwämmle cooling water coolers can be used in all applications requiring heat exchange or temperature stabilization, e.g. with precision machine tools, lasers, plasmaarc cutting machines, induction machines, welding machines, degreasers, for emulsion cooling, etc. The models LWH 2 to LWH 22 cooling water coolers by Schwämmle have fully hermetically sealed refrigerating compressors and are ready-to-operate compact systems which save space and are easy to install. Special designs for custom Cooling water coolers can also be supplied for the direct cooling of deionized water. SCHWÄMMLE GmbH & Co. KG Completely panelled and mounted on sturdy feet. Final coating with grey textured paint, similar to RAL 7032. Other colours on request. Water circuit comprising water tank, centrifugal pump and tank stirrer. Automatic water make- up (option), completely piped. Cooling circuit comprising refrigerating compressor and tube coil evaporator made of copper in tank (the evaporator can be supplied in stainless steel on request). Air-cooled condenser made of copper tubes and aluminium fins; expansion valve, dryer, high and low pressure switches (type tested), sight LWH2 LWH3 Electronic thermostat with digital display. Control lamp for power on, control lamp for group fault, main switch and complete electrical wiring. glass, solenoid valve from LWH 7 onwards, coolant header, oil and coolant filling. Scope of supply Power source: 400 V, 50 Hz, 3 phase. Special voltages and versions to UL, CSA, etc. can be supplied on request. Electrical switchgear cabinet in totallyenclosed dust- proof version in compliance with VDE 0100, 0113 and VGB 4, comprising all switches, controls and monitoring devices. All drives protected against short-circuit by protective motor switches. LWH5 LWH7 LWH9 LWH11 LWH14 LWH18 LWH22 Specifications subject to change. LWH27 LWH32 LWH36 LWH44 LWH54 LWH64 2,4 3,5 5,5 7,9 10,1 12,5 15,3 19,8 24,2 31,4 37,2 41,9 51,4 63 75,5 kcal/h 2.050 3.000 4.700 6.770 7.700 10.700 13.100 16.970 20.750 27.000 32.000 36.000 44.200 54.200 64.100 Air flow m³/h 1.400 2.390 2.390 2.39Ü0 2.390 2.390 2.390 2.390 9.600 11.540 11.540 19.200 19.200 23.080 23.080 Pump rating m³/ 0,6 0,6 0,6 1,2 1,2 1,2 2,4 2,4 4,0 4,7 5,4 6,0 7,2 9,0 10,8 at feet pressure bar 2,6 2,6 2,6 3,2 3,2 3,2 3,8 3,8 3,2 3,8 3,4 5,5 5,5 5,1 3,0 Comressor rating kW 0,55 1,45 1,5 2,3 2,8 3,5 4,5 5,3 7,2 7,5 9,3 2x4,35 2x6,2 2x7,5 2x9,3 Pump motor rating kW 0,46 0,46 0,46 0,65 0,65 0,65 0,88 0,88 1,16 1,05 1,05 4,0 4,0 4,0 4,0 Connected load kW 1,1 3,0 3,0 4,0 5,0 5,2 5,5 6,0 10,0 9,51 11,31 11,95 15,65 19,01 22,61 Max. current drain A 3,32 7,5 7,5 10,0 12,5 13,0 14,0 15 25,0 28,17 34,17 40,52 46,52 55,92 67,92 Max.fuse A 10 10 10 16 16 16 20 20 25 NH32 NH35 NH50 NH50 NH63 NH80 Cooling capacitykW Power 400V/50Hz Control voltage 230V/50Hz Tank contens L 90 90 90 90 260 260 Water connections Zoll 3/4 3/4 3/4 3/4 3/4 3/4 Design 260 260 260 500 500 500 800 800 1100 1 1 1 1 1 1/4 2 2 2 2 945 1455 1455 2100 2100 2350 2350 Fully hermetically sealed Cooling type Air cooled Length mm width mm 670 695 695 695 895 895 895 895 895 900 900 950 1300 1300 1300 Height mm 1250 1165 1165 1165 1680 1680 1680 2012 2012 1965 1965 1850 1850 2000 2000 720 725 725 725 945 945 945 945 Note: The ratings specified refer to a water feed temperature of +20°C an an ambient temperature of 32°C. Special voltages can be supplied on request. Industrial cooling systems Development of customised cooling systems SCHWÄMMLE GmbH & Co. KG Dieselstr. 12-14 · D-71546 Aspach/Germany Phone +49 71 91 / 92 42 - 0 P.O.Box 12 17 · D-71545 Aspach/Germany Fax +49 71 91 / 2 25 10 www.schwaemmle-gmbh.de info@schwaemmle-gmbh.de
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