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Heat pump unit and compressor-evaporator unit Aermec NXW

1. models 1000 1250 1400 b D FA E sw Modello U M 1000 1250 1400 5 2 28 300 300 300 AN ii B mm 119 1190 1190 i 2 oe 8 35 35 35 i pa D 70 70 70 e a E T T Inlet evaporator GASC1 GASC2 B 4 Liquid C1 E Liquid C2 1 5 NE Outlet evaporator H p 4 j I A ra By ES Le D t RS QU N I M 5 O 22 wa xl Dimensions Model U M 1000 1250 1400 A 1775 B 2054 C 0800 D 1165 E 568 F mm 217 G 66 H 104 72 L 1107 HYDRAULIC CONNECTION VICTAULIC IN OUT Evaporator plates 3 48 INXWPY 1004 4438805 03 NXW version conderserless E models 1000 1250 1400 pumps aS Se Model UM 1000 1250 1400 A 600 600 600 B 922 922 922 35 35 35 70 70 70 Outlet evaporator Premente 8 Ts Premente 2 NI lt i Liquid Nr Liquido C2 PRA
2. E EVAPORATOR PUMP C D POSITION Model U M 0500 0550 0600 0650 0700 0750 0800 0900 1000 1250 1400 A 1600 1600 1600 1600 1600 1600 1600 1600 1600 1600 1600 B 175 175 175 175 175 175 175 175 175 175 175 300 300 300 300 300 300 300 300 300 300 300 D 2644 2644 2644 2644 2644 2644 3044 3044 3044 3044 3044 E 75 75 75 75 75 75 75 75 75 75 75 F 1035 1035 1035 1035 1035 1035 1035 1035 1035 1035 1035 G mmi 225 225 225 225 225 225 225 225 216 216 216 H 343 343 343 343 343 343 343 357 367 367 367 1374 1374 1374 1374 1374 1374 1374 1374 1440 1440 1440 L 410 410 410 410 410 410 422 425 410 410 410 M 264 264 264 264 264 264 260 260 288 288 288 N 838 838 838 838 838 838 858 858 706 706 706 1775 1775 1775 1775 1775 1775 1775 1850 1850 1850 1850 P 800 800 800 800 800 800 800 800 800 800 800 Model U M 0500 0550 0600 0650 0700 0750 0800 0900 0900 H 1000 1250 1400 EVAPORATOR PLATES Hydraulic connection n Victaulic in out 21 2 23 2 21 2 2 1 2 2 1 2 2 1 2 2 1 2 2 1 2 3 3 3 3 CONDENSER PLATES Hydraulic connection 7 n Victaulic in out 27 2 27 2 21 2 272 2 1 2 2 1 2 2 1 2 12 1 2 3 3 3 3 INXWPY 1004 4438805_03 41 NXW LOW NOISE VERSI
3. EVAPORATOR USEFUL HEAD LOW HEAD VERSION 250 200 wg 150 a s 100 50 Ls e 0 0 10000 20000 30000 40000 50000 60000 70000 80000 90000 10000 WATER FLOW l h CONDENSER USEFUL HEAD LOW HEAD VERSION EVAPORATOR VERSION 250 200 S 150 X a i 100 50 0 0 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000 WATER FLOW RATE l h 28 INXWPY 1004 4438805 03 USEFUL HEAD kPa EVAPORATOR USEFUL HEAD HIGH HEAD VERSION H WATER FLOW RATE l h USEFUL HEAD kPa EVAPORATOR USEFUL HEAD LOW HEAD VERSION H 10000 20000 30000 40000 50000 60000 70000 80000 90000 WATER FLOW I h INXWPY 1004 4438805 03 29 11 MAXIMUM WATER CONTENTIN THE SYSTEM Mod NXW vers UM 0500 0550 0600 0650 0700 0750 0800 0900 1000 1250 1400 WATER CONTENTIN THE SYSTEM s kW1 5 kW2 10 1 Minimum water content 2 Minimum water content in the case of process applications orapplications with low load AtProject data less than 5 C 12 EXPANSION TANK CALIBRATION The standard pre load pressure value ofthe expansion vessel is 1 5 bar while their volume is 25 litres The maximum value is 6 bar Vessel cal
4. Heating capacity 96 Levels of power Versions 12 22 3 4 NXW0500 38 54 100 NXW0550 35 69 100 NXWO0600 27 52 77 100 NXWO0650 27 52 77 100 NXW0700 27 52 77 100 NXW0750 27 52 77 100 NXW0800 27 52 77 100 NXW0900 27 52 77 100 NXW1000 27 52 77 100 NXW1250 27 52 77 100 NXW1400 27 52 77 100 Input power Levels of power Versions 12 22 3 4 NXW0500 33 49 100 NXW0550 30 64 100 NXWO0600 22 47 72 100 NXWO0650 22 47 72 100 NXW0700 22 47 72 100 NXW0750 22 47 72 100 NXW0800 22 47 72 100 NXW0900 22 47 72 100 NXW1000 22 47 72 100 NXW1250 22 47 72 100 NXW1400 22 47 72 100 Performance values referto the following conditions Evaporator inlet watertemperature 5 C condenser inlet watertemperature 45 C INXWPY 1004 4438805_03 37 ww FOR THE INSTALLER 18 SELECTION AND PLACE OF INSTALLATION Before installing the unit decide with the customer the position in which it will be placed pay attention to the follow ing points the support surface must be able to withstand the weight of the unit The NXW series are for indoor use protection grade 40 and must be installed leaving the necessary technical spaces see Minimum technical spaces Observance of these spacesisto be considered indispensable in orderto allow normal and extraordinary mainte nance operations The unit must be installed by a qualified technician in accordance with th
5. 6 Safety precautions and installation 6 Product identification sene 6 Description and choice of the unit 7 Available models ri Available versions ite ari Available versions sse m 7 Description and choice of the unit 8 Description of components 9 Cooling circuit Fratri iei treten e nen Hydraulic 9 Electrical components Electronic regulation asi ti sciet kaneis Electric regulation accessories es Electrical accessories Generalaccesesories Technicaldata eei eritis Standard version standard L slenced Version H heat pump with water side inversion Version HL heat pump with water side inversion SllenCed 5 testen rii na Rs 15 Version E 17 Version LE condenserless silenced 17 Operating limits 18 Operating limits standard version 18 Operating limit version E condenserless 18 Corrective factor
6. 1 1 8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Evaporator output water temperature At 5 C fig 8 1 1 8 2 1 CORRECTION FACTORS FOR AT DIFFERENT FROM THE CHILLER RATED VALUE Evaporator At different to nominal 3 5 8 10 Conection factorcooling capacity 0 99 1 1 02 1 03 Correction factorinput power 0 99 1 1 01 1 02 factorheating capacity 0 99 1 1 02 1 03 Condenser At different to nominal f 3 5 8 10 Correction factorheating capacity 0 9912 1 1013 1027 Correction factorinput power 10144 1 0978 0 9633 8 3 1 FOULING FACTOR Fouling factor K m V 0 00001 0 00002 0 00005 Correction factorcooling capacity 1 0 99 0 98 Correction factorinput power 1 1 1 Correction factorheating capacity 1 1 0 99 Correction factor input power 1 1 1 02 INXWPY 1004 4438805 03 19 84 COOLING CAPACITY AND INPUTPOWER HEATING PUMP IN COOLING OPERATION VERSIONS The refrigerating capacity yielded and the input electrical capacity in conditions otherthan rated conditions are obtained by multiplying the rated values Pf by the respective conection coefficients Cf Ca The diagram allows you to obtain the correction coefficients cor responding to each curve the temperature of the hot proc essed water refered to is report ed assuming a difference in water temperature between the i
7. 8 7 6 5 4 3 2 14 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Evaporator output water temperature At 5 C fig 8 4 1 8 5 1 CORRECTION FACTORS FOR AT DIFFERENT FROM THE CHILLER RATED VALUE Evaporator At different to nominal 3 5 8 10 factorcooling capacity 0 99 1 1 02 1 03 Correction factorinput power 0 99 1 1 01 1 02 Correction factorheating capacity 0 99 1 1 02 1 03 Condenser At different to nominal 3 5 8 10 factorheating capacity 0 9912 1 1 013 1 0227 Conection factor input power 10144 1 0978 0963 8 6 1 FOULING FACTOR Fouling factor K mv WI 0 00001 0 00002 0 00005 factorcooling capacity 1 0 99 0 98 Correction factorinput power 1 1 1 factor heating capacity 1 1 0 99 Correction factorinput power 1 1 1 02 COOLING CAPACITY 87 COOLING CAPACITY 16 INPUTPOWER VERSION 15 E CONDENSERLESS 14 13 VERSIONS E CONDENS ERLESS The refrigerating capacity Cf yielded and the input elec trical capacity in conditions other than rated conditions are obtained by multiplying the rated values Pf Pa by the respective correction 95 coefficients Cf Ca 04 The diagram allows you to obtain the correction coefficients According to the condensing tempera ture of referred to is shown assuming a difference of INPUTPOWER IN COOLING MODE 5 C between the input and output of the evaporato
8. u uu 19 Heating capacity and input power For ATdifferent from the rated value Fouling factors Cooling capacity and input power For At different from the rated value 20 FOULING facto SS cicer ierit inne 20 Cooling capacity input power version E condenserless 21 For At different from the rated value 21 FOULING fa Cto fS arinina anasu eene 21 Heating capacity with desuperheater 22 For At different from the rated value 22 Fouling factors 22 Desuperheater pressure drops Heating capacity with total recovery 23 For At different from the rated value 23 FOULING factors 23 Pressure dropstotalrecovervy 24 Total pressure drops Evaporatorin cooling operation 22 Condenserin cooling operation Useful heads rhet tete 27 Minimum maximum water content in the system 30 Expansion tank calibration 30 Glycol 0 31 How to read the glycolcurves 31 15 15 1 15 2 16 17 18 19 19 1 20 21 21 1 21 2 21 3 22 22 1 22 2 22 3 22 4 22 5 22 6
9. All electrical operations must be carried out BY QUALIFIED PERSONNEL IN ACCORDANCE WITH THE CORRESPONDING REGULATIONS trained and in formed about the risks related to such operations The characteristic sof electric linesand related components must be estab lished by PERSONNEL AUTHORISED TO DESIGN ELECTRIC INSTALLATIONS fol lowing intemational regulations and the national regulations of the country in which the unit is installed in compliance with the legislative regulations in force at the moment of installation For installation requirements the wiring layout supplied with the unit must be compulsory refered to The wiring layout together with the manuals must be kept in good conditions and readily ACCESSIBLE FOR FUTURE OP ERATIONS ON THE UNIT ITis compulsory to check the machine sealing before connecting the elec trical wirings The machine should only be powered once the hydraulic and electric operations are completed It is necessary to use a omnipolar thermomagnetic switch in compli ance with the CEI EN standards contact opening of at least 3 mm with adequate switch capa bility and differential protection based on the followed electrical data table installed asclose as possible to the machine It is necessary to carry out an effi cient earth connection The manu facturercan not be held responsi ble forany damage caused by the failure and ineffective earthing of the machine For units
10. EMPTY PERCENTAGE WEIGHT DISTRIBUTION ON MODEL CENTRE OF GRAVITY AR AVX Weight Xg Yg A B D NXWO500HL HL 801 393 847 2896 2796 2396 2296 309 NXWOSOOHL HL 1 pump 982 387 902 3496 3296 1796 1696 c NXWOSOOHL HL 2pumps 1030 386 952 3396 3196 1896 1796 NXWO0500HL HL 3pumps 1077 385 998 3396 3096 1996 1896 3i5 NXWOSOOHL HL 4 pumps 1124 384 1041 3296 3096 2096 1996 NXWO0550HL HL 805 393 845 2896 2796 2396 2296 309 NXWO550HL HL 1 pump 987 388 900 3496 3296 1796 1696 du NXWO550HL HL 2 pumps 1034 387 950 3396 3196 1896 1796 NXWO550HL HL 3pumps 1081 386 996 3396 3096 1996 1896 3i NXWO0550HL HL 4pumps 1129 385 1038 3296 3096 2096 1896 NXWO600HL HL 907 398 897 2696 2696 2496 2496 310 NXWO600HL HL 1 pump 1088 392 938 33 32 18 17 311 NXWO600HL HL 2 pumps 1135 391 983 33 31 19 18 NXWO600HL HL 3 pumps 1183 390 1023 3296 3096 1996 1896 312 NXWO600HL HL 4 pumps 1230 389 1061 3196 3096 2096 1996 NXWO650HL HL 915 399 897 2696 2696 2496 2496 303 NXW0650HL HL 1 pump 1100 393 941 3396 3296 1896 1796 311 NXWO650HL HL 2pumps 1151 391 987 3296 3196 1996 1896 NXW0650HL HL 3pumps 1201 390 1030 3296 3096 2096 1996 313 NXWO650HL HL 4pumps 1252 389 1069 3196 2996 2096 1996 NXW0700HL HL 963 398 916 25 25 25 25 304 NXW0700HL HL 1 pump 1148 393 1088 30 29 21 20 NXW0700HL HL 2 pumps 1199 392 1126 30 29 21 20 NXW0700HL HL 3 pumps 1249 390 1162 29 28 22 21 NXW0700HL HL 4 pu
11. Evaporator plates 2 1 2 NXW version conderserless E models 0800 0900 AVX Model U M 0800 0900 A 300 300 B 1454 1454 gc 35 35 D 70 70 G Inlet evaporator GASC1 GASC2 Liquid Outlet evaporator Liquid C2 Ce e alc COTE 2 L D s Dimensions Model U M 0800 0900 A 1775 B 2054 C 800 D 1121 72 E 92 F mm 369 G 93 H 103 71 5 L 1107 5 HYDRAULIC CONNECTION VICTAULIC IN OUT Evaporator plates 0 2 2 INXWPY 1004 4438805 03 47 NXW version conderserless E
12. 123 4567 8 9 10 11 12 13 14 15 NXW 0650 o o o o o o o o Field 123 Code NXW 4567 Size 0500 0550 0600 0650 0700 0750 0800 0900 1000 1250 1400 8 Field of use 9 Standard mechanical thermostatic valve up to 4 C Y Low water temperature mechanicalthermmostatic valve down to 8 C X Electronic thermostatic valve also forlow watertemperature down to 8 C 9 Model 2 heat pump with water side inversion H heat pump with gasside cycle inversion 10 Version Y standard L silenced 11 Evaporator 2 standard E condenserless 12 Heat recovery without recovery units D with desuperheater T with total heat recovery 13 Powersupply 2 400V 3 50Hz with thermomagnetic switches 4 230V 3 50Hz with thermomagnetic switc hes 5 500V 3 50Hz with themmo magnetic switc hes 14 Evaporator side pumps 3 without pumping assembly M low head pump N low head pump and reserve pump high head pump P high head pump and reserve pump 15 Condenser side pumps o lt without pumping assembly low head pump low head pump and reserve pump high head pump high head pump and reserve pump low head inverter pump high head inverter pump the standard optionsare shown by the symbol these combinations are not possible YD ET T with evaporatororcondenserside pumps available only for sizes 0500 to 0700 available only for sizes 0600 0650 and 0800 to 1400 evaporator isthe heat exchanger that works
13. 1857 405 1539 27 28 22 23 NXW1000H 4 pumps 1892 404 1558 27 27 23 23 NXW1250H H 1577 414 1322 2296 2396 2696 2896 315 NXW1250H H 1 pump 1718 410 1423 2896 3096 2096 2196 NXW1250H H 2 1803 408 1477 2896 2996 2196 2296 NXW1250H H 3pumps 1889 406 1527 27 28 22 23 NXW1250H H 4pumps 1924 405 1546 27 28 22 23 NXW1400H H 1657 413 1342 22 23 27 29 317 NXW1400H H 1 pump 1797 409 1437 2896 3096 2196 2296 NXW1400H 2 pumps 1883 407 1488 2896 2996 2196 2296 ga NXW1400H H 3 pumps 1969 405 1535 27 28 22 23 NXW1400H H 4 pumps 2004 404 1554 27 27 23 23 NOTE The number of pumpsrefersto the quantity physically present on the machine The weight difference between the typesof configurator pumps low head and high head is negligible NOTE Version with desuperheater D use the same positions forantivibration pad fixing as forthe AVX of the standard version desuperheater additional weight 23 kg for all models from 500 to 800 size 29 kg forall models from 900 to 1400 size 54 INXWPY 1004 4438805 03 22 5 PERCENTAGE DISIRIBUTION OF WEIGHTS ON SUPPORTS VERSION L SIZES FROM 0500 TO 0750 PERCENTAGE WEIGHTDISTRIBUTION MODEL CENTRE OF GRAVITY Weight Xg Yg A B C D NXW0500L L 750 399 834 28 27 23
14. 2 pumps 1688 418 1472 27 30 21 23 NXW1250 3 1774 415 1525 27 29 22 23 NXW1250 4 pumps 1809 414 1546 26 28 22 24 NXW1400 1539 425 1326 2196 2496 2696 2996 315 NXW1400 1 pump 1680 420 1429 28 30 20 22 NXW1400 2 pumps 1765 417 1485 27 29 21 23 NXW1400 3 pumps 1851 415 1535 26 28 22 23 NXW1400 4pumps 1886 414 1554 26 28 22 24 NOTE The number of pumpsrefersto quantity physically present on the machine The weight difference between the typesof configurator pumps low head and high head isnegligible NOTE Version with desuperheater D use the same positions for antivibration pad fixing asforthe AVX ofthe standard version desuperheateradditional weight 23 kg for all models from 500 to 800 size 29 kg for all models from 900 to 1400 size 52 INXWPY 1004 4438805 03 22 3 PERCENTAGE DISTRIBUTION OF WEIGHTS ON SUPPORTS VERSION H SIZES FROM 0500 TO 0750 EMPTY PERCENTAGE WEIGHTDISTRIBUTION ON MODEL CENTRE OF GRAVITY MUR AVX Weight Xg Yg A B D NXWO0500H H 628 401 849 2796 2796 2396 2396 319 NXWO500H H 1 pump 730 396 923 33 33 17 17 320 NXWO0500H H 2 pumps 778 394 989 3296 3196 1996 1896 NXWO0500H H 3 pumps 825 392 1047 31 30 20 19 s 0500 H 4 pumps 872 390 1
15. Anti freeze alarm Water flow rate alarm Regular 65 Extraordinary Maintenance 65 RR 67 AERMEC air conditioning NXW SERIAL NUMBER DECLARATION OF CONFORMITY We the undersigned declare on our own exclusive responsibility that the object in question so defined NAME NXW TYPE WATER TO WATER CHILLER MODEL and to which this declaration refers complies with the following harmonised standards CEI EN 60335 2 40 Safety regulation regarding electric heat pumps airconditioners and dehumidifiers CEI EN 61000 6 1 CEI EN 61000 6 3 CEI EN 61000 6 2 CEI EN 61000 6 4 Electromagnetic immunity and emission in residential environment Electromagnetic immunity and emission in industrial environment EN378 Refrigerating system and heat pumps Safety and environmental requirements UNI EN 12735 Round welding free copper pipesforairconditioning and cooling UNI EN 14276 Pressure equipment for refrigerating systems and heat pumps thus meeting the essential requisites of the following directives LVD Directive 2006 95 EC Electromagnetic Compatibility Directive 2004 108 EC Machine Directive 2006 42 EC PED Directive relating to pressure equipment 97 23 EC In compliance with Directive 97 23 EC the product meets the Full quality assurance procedure module H with certi
16. 16 SAFETY AND CHECK PARAMETER SETTING CHECK PARAMETERS Cooling set Water inlet temperature in cooling mode Water inlet temperature in heating mode Antifreeze alarm intervention temperature on EV side water Antifreeze intervention output temperature Proportional t ture band within which th MIN 2 Total differential roportional temperature band within which the compressors are MAX 10 activated and deactivated DEFAULT 59 Autostart Auto COMPRESSOR THERMO MAG NETIC SWITCHES 400V 500 550 600 650 700 750 Compressors MTC 1 CP1 CP1A A 22 22 22 28 28 28 28 28 33 33 43 43 MTC2 CP2 CP2A A 33 33 22 22 28 28 33 33 33 33 800 900 1000 1250 1400 Compressors MTC1 CP1 CP1A A 43 43 53 43 53 53 57 53 57 57 MTC2 CP2 CP2A 43 43 53 43 53 53 57 53 57 57 MAIN SWITCH without pumps 500 550 600 650 700 750 IG A 80 100 100 125 160 160 MAIN SWITCH without pumps 800 900 1000 1250 1400 IG A 200 200 250 250 250 MAIN SWITCH with pumps 500 550 600 650 700 750 IG A 100 100 125 125 160 160 MAIN SWITCH with pumps 800 900 1000 1250 1400 IG A 200 200 250 250 250 TRANSDUCERS AND PRESSURE SWITC HES 500 550 600 650 700 750 manual reset Pressure switch high press HP bar 40 40 40 40 40 40 High pressure transducer THP bar 39 39 39 39 39 39 Low pr
17. 652 53 5 0550 79 47 62 505 577 724 763 724 658 542 0600 79 47 62 50 5 577 724 763 72 4 65 8 542 0650 80 48 63 509 588 734 775 732 66 4 542 0700 82 50 65 529 608 75 4 79 5 75 2 68 4 562 0750 86 54 69 571 65 1 795 835 79 1 723 602 0800 88 56 71 59 7 67 6 815 85 5 804 74 0 622 0900 88 56 71 59 7 67 6 815 85 5 80 4 740 622 1000 88 56 71 59 7 67 6 815 85 5 804 740 622 1250 90 58 73 617 696 835 875 824 76 0 642 1400 90 58 73 61 7 69 6 83 5 87 5 824 760 642 Pressure Sound powerby central band frequency NXW L 0 dB A dB A 10m im 125 250 500 1000 2000 4000 8000 0500L 72 40 55 48 6 53 5 675 69 6 60 8 556 394 05501 73 41 56 49 6 53 8 680 706 615 562 401 06001 73 41 56 49 6 53 8 680 706 615 562 401 06501 74 42 57 50 0 549 690 718 62 3 568 401 07001 76 44 59 52 0 569 710 738 643 588 421 07501 80 48 63 562 612 75 1 778 68 2 627 461 08001 82 50 65 58 8 63 7 771 798 69 5 644 481 09001 82 50 65 588 63 7 771 798 69 5 644 481 10001 82 50 65 588 637 771 798 69 5 644 481 12501 84 52 67 60 8 657 791 818 715 664 501 14001 84 52 67 60 8 65 7 791 818 715 664 501 NXW 0500 0750 version with pumps add 2dB NXW 0800 1400 version with pumps add
18. E ER 7 Inlet evaporator A era m ESSI Set ij KJ B Dimensions Model 1000 1250 1400 1775 3044 C 400 D 684 E mm 759 F 217 G 66 H 104 1107 HYDRAULIC CONNECTION VICTAULIC IN OUT Evaporator plates 0 3 INXWPY 1004 4438805 03 49 21 HYDRAULIC CIRCUIT The NXW standard version is comprised of a circuit including Evaporator plate type exchanger Condenser plate type exchanger Waterinlet probe SIW Water outiet probe SUW NB Water filter versions standard NOT INCLUDED the weld pipe is supplied as standard with the VICTAULIC connec tion is included The NXW version with pumping group also includes Circulation pump Water filter Drain valve Aow switch Water outlet inlet probe Expansion tank 25 litres 211 EXTERNALHYDRAULIC CIRCUIT RECOMMENDED The selection and installation of compo nents outside NXW should be carried out by the installer who should work ac cording to the technical code of practice and in compliance with the legislation in force in the country of destination MD 329 2004 Before connecting the pipes make sure thatthey do no
19. L 3 pumps 1370 399 1360 27 27 23 23 NXWO750L L 4 pumps 1411 398 1386 27 27 23 23 A NOTE The numberof pumps refers to the quantity physically present on the machine The weight difference between the typesof configurator pumps low head and high head isnegligible NOTE Version with desuperheater D use the same positionsfor antivibration pad fixing asforthe AVX ofthe standard version desuperheateradditional weight 23 kg forall models from 500 to 800 size 29 kg forall models from 900 to 1400 size INXWPY 1004 4438805 03 55 22 6 PERCENTAGE DISIRIBUTION OF WHGHTS ON SUPPORTS VERSION L SIZES FROM 0800 TO 1400 EMPTY PERCENTAGE WEIGHTDISTRIBUTION ON SUPPORIS MODEL CENTRE OF GRAVITY AVX Weight Xg Yg A B C D NXWO800L L 1187 411 1226 24 25 25 26 314 NXWO800L L 1 pump 1357 405 1292 28 29 21 22 NXWO800L L 2 pumps 1417 403 1334 28 28 22 22 NXWO800L L 3 pumps 1478 402 1373 27 27 23 23 NXWO800L L 4 1538 400 1408 27 27 23 23 NXW0900L L 1378 418 1220 24 26 24 26 314 NXW0900L L 1 pump 1585 411 1399 29 30 20 21 NXWO900L 1 2 1646 409 1442 2896 2996 2196 2296 pes NXWO900L L 3 pumps 1706 407 1482 28 29 21 22 NXW0900L L 4 pumps 1767 406 1519 27 28 22 23 NXW1000L L 1615 420 1300 22 24 26
20. PLATE HEAT Vers U M Recovered heating capacity kW 120 130 162 183 206 244 281 320 359 390 422 Quantity 0 1 Totalinput power 28 9 311 38 9 43 5 49 5 58 3 67 3 76 6 86 2 93 8 101 5 Water flow rate recovery WE Vh 20610 22340 27890 31430 35440 41890 48330 55020 61710 67120 72530 Pressure dropsof the recovery exchanger kPa 20 23 24 31 31 38 51 32 25 29 30 Water connections VIC TAULIC 0 27 2 21 2 21 2 27 2 27 2 2 2 20 2 3 3 3 3 In cooling operation 1 In heating operation 2 processed watertemperature 7 C processed water temperature 45 C Condenser inlet water temperature 30 C Evaporatorinlet watertemperature 10 At 5 At 5 Total recovery Water temperature to total recovery 45 50 C Water temperature to evaporator 12 7 C INXWPY 1004 4438805 03 15 Mod NXW vers U M 0500 0550 0600 0650 0700 0750 0800 0900 1000 1250 1400 DESUPERHEATER PLATES Recovered heating capacity 1 kW 21 0 22 6 272 29 0 32 4 37 6 43 0 491 55 0 59 4 62 0 Quantity no T Desuperheater waterflow rate 1 l h 3620 3890 4680 4990 5570 6460 7390 8450 9460 10210 10660 H HL Desuperheater pressure drops 1 kPa 2 0 2 3 3 3 3 8 4 7 6 4 8 3 2 4 3
21. forfailures caused by errors during installation ad justment and maintenance orincorect use Allthe uses not expressly indicated in this manual are not allowed 11 STORAGE OF THE DOCUMENTATION Deliver the following instructions plus allthe complementary documenta tion to the system user who shall be responsible for keeping the instructions so that they are alwaysavailable when needed Read carefully this chapter all the procedures must be carried out by qualified personnel according to the regulations in force in the different countries M D 329 2004 The unit must be installed in such a way asto make all maintenance and or repairoperations possible The waranty of the device doesnot in any case covercostsowing to ladder trucks lifts or other lifting systemsthat may be required in orderto carry out repairs under warranty Do not modify ortamper with the chiller asthis may cause dangerous situations and the manufacturer shall not be liable forany damages The warranty shall not be valid if the indications men tioned above are not observed 1 2 SAFETY PRECAUTIONS AND INSTALLATION the chiller mut be installed by an authorised and qualified techni Cian in compliance with the national legislation in force in the country of destination MD 329 2004 AERMEC shall not be held respon sible forany damage whatsoever resulting from the non compliance with these instructions Before starting any work it i
22. multiply the val ues in the performance table by the reported coefficients HEATING CAPACITY T 13 25 12 14 9 Cr io LL L 1 ree Gs es pe i 0 9 98 oe BE i 5 0 7 1 I g 0 6 1 OL 8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 5 Evaporator output water temperature At 5 C ABSO RBED POWER HEATING 1 2 T 14 1 0 0 9 i Ca 0 8 LLLLL IL 4 141 0 7 808880 CondenserOutput water temperature At 5 C 1 I 25 0 6 1 1 1 0 5 4 8 7 6 5 4 3 2 101 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Evaporator output terte ture At 5 C fig 8 14 1 8 15 1 CORRECTION FACTORS FOR AT DIFFERENT FROM THE CHILLER RATED VALUE Evaporator At different to nominal 3 5 8 10 factorcooling capacity 0 99 1 1 02 1 03 Correction factorinput power 0 99 1 1 01 1 02 factorheating capacity 0 99 1 1 02 1 03 Condenser At different to nominal 3 5 8 10 Comection factorheating capacity 0 9912 1 1 013 1 0227 Comection factor input power 10144 1 0978 0963 8 16 1 FOU
23. standard settings only when the test is finished the valuesofthe opera tion Set Point vary Before starting up power the unit for at least 12 24 hours by positioning the pro tection thermomagnetic switch and the door block disconnecting switch on ON fig 1 Make sure that the control panel istumed off until it allowsthe oil heater system the compressor casing 25 OPERATION CHARACTERISTICS 25 1 COOLING SETPOINT Default defined 2 7 C At 5 25 2 HEATING SETPOINT Default defined 45 C At 5 In case of restoring of the unit supplied poweraftera momentary inte mup tion the pre set mode is maintained in memory 25 3 COMPRESSOR SIARFUP DELAY To prevent the compressor start too close to each other two functions have been arranged Minimum time from last tumoff 60 seconds Minimum time from last start 300 sec onds 25 4 CIRCULATION PUMP The electronic board provides an out putto manage the circulation pump Afterthe first 10 secondsof pump S71 metro 1 metro minimum technical spacesformaintenance WARNING Inspection maintenance and possible repairopera tions must be carried out only byan authorised technician according to the law Unsuitable c heck mainte nance operation may cause damage to thingsand people operation when the waterflow rate is running activate the function of water flow rate alarm flow switch 25 5 ANTI FRE
24. 1030 2696 2696 2496 2496 NXW0800 1104 400 1176 26 26 24 24 NXW0900 1244 404 1148 26 27 23 24 NXW1000 1460 407 1238 24 25 25 26 NXW1250 1504 406 1235 24 25 25 26 NXW1400 1558 403 1251 24 24 26 26 DIAGRAM DISTRIBUTION OF WEIGHTS ON SUPPORTS Yg Xg 60 INXWPY 1004 4438805 03 23 ELECTRICALWIRINGS NXW chillers are completely wired in the factory and only need the connection to the electricity mainssupply down stream from a group switch according to the regulationsin force in the coun try where the machine is installed It is also suggested to check the mainssupply characteristics to ensure it is suitable forthe levels indicated in the electrical data table also taking into considera tion any otherequipment that may be operating atthe same time The unitis only powered afterthe last hydraulic and electric insta lations Follow the connections instructions ofthe phase conductors and earth The powersupply line will have a special protection upstream against short circuits and earth lossesthat sectionsthe system ac cording to otherusers The voltage should be within a tolerance of 10 of the rated supply voltage of the machine for Three phase unitsdisplacement max 3 between the phases If these pa rametersare not respected contact the energy supplier For electrical wirings use isolated double cables according to the standardsin force in the different countries
25. 28 315 NXW1000L L 1 pump 1847 413 1462 28 29 21 22 NXW1000L 1 2 1933 411 1511 27 29 22 23 NXW1000L 1 3 2019 409 1556 27 28 22 23 NXW1000L 1 4 2054 408 1573 26 27 23 24 NXW1250L L 1659 419 1296 2296 2496 2696 2896 315 NXW1250L L 1 pump 1891 412 1455 2896 2996 2196 2296 NXW1250L 1 2 1977 410 1503 2796 2996 2296 2396 Ed NXW1250L L 3 pumps 2063 408 1547 27 28 22 23 NXW1250L L 4 pumps 2098 407 1564 27 27 23 23 NXW1400L L 1737 418 1316 22 24 26 28 317 NXW1400L L 1 pump 1969 411 1466 28 29 21 22 NXW1400L L 2 pumps 2055 409 1512 27 28 22 23 o NXW1400L L 3 pumps 2140 407 1555 27 28 22 23 NXW1400L L 4 pumps 2176 407 1571 26 27 23 24 NOTE The number of pumpsrefersto the quantity physically present on the machine The weight difference between the typesof configurator pumps low head and high head is negligible NOTE Version with desuperheater D use the same positions for antivibration pad fixing as forthe AVX of the standard version desuperheater additional weight 23 kg forall models from 500 to 800 size 29 kg for all models from 900 to 1400 size 56 INXWPY 1004 4438805 03 22 7 PERCENTAGE DISTRIBUTION OF WEIGHTS ON SUPPORTS VERSION HL SIZES FROM 0500 TO 750
26. 300 300 300 300 300 D 1790 2054 2054 2054 2054 2054 E 1035 1035 1035 1035 1035 1035 L G F 369 369 369 568 568 568 G mm 1125 1125 1125 1165 1165 1165 H 225 225 225 216 216 216 343 343 358 358 358 358 L 1125 1125 1165 1165 1165 1165 M 369 369 568 568 568 568 N 1775 1775 1820 1820 1820 1820 800 800 800 800 800 800 Model 0750 0800 0900 0900H 1000 1250 1400 EVAPORATOR PLATES Hydraulic connection Victaulic IN OUT 2 1 2 2 1 2 27 2 35 3 3 3 CONDENSER PLATES Hydraulic connection Victaulic IN OUT 2 1 2 2 1 2 27 2 3 3 3 40 INXWPY 1004 4438805 03 NXW FROM 0500 TO 1400 VERSION WITH PUMP AVX Model UM 0500 0550 0600 0650 0700 0750 0800 0900 1000 1250 1400 390 390 390 390 390 390 600 600 600 600 600 932 932 932 932 932 932 922 922 922 922 922 390 390 390 390 390 390 600 600 600 600 600 35 35 35 35 35 35 35 35 35 35 35 gm 3 3 70 70 70 70 70 70 70 70 70 70 70 VERSION HEAT PUMP WITH WATER SIDE INVERSION OUTLETCONDENSER INLETCONDENSER OUTLETEVAPORATOR OUILET CONDENSER
27. 66656 72030 Pressure drop at condenser 3z kPa 20 23 24 31 31 38 50 32 25 29 30 Evaporator water flow rate l h 16138 17515 21859 24681 27763 32850 37904 43140 48340 52574 56807 Evaporator pressure drop kPa 21 25 23 29 31 34 36 41 26 27 27 ENERGY INDEXES EER W W 5 05 5 06 5 05 5 08 5 06 5 12 5 11 5 05 5 05 5 05 5 05 ESEER SS W W 6 01 6 02 6 01 6 04 6 02 6 05 6 03 6 02 6 06 6 05 6 06 COP W W 4 49 4 51 4 51 4 54 4 50 4 52 4 52 4 51 4 50 4 50 4 50 ELECTRICAL DATA 400V 3 50Hz Input current cooling A 48 3 50 6 58 4 63 86 94 102 120 138 140 143 Input current heating A 54 57 66 72 94 105 115 135 154 160 165 Maximum curent FLA E A 75 80 96 107 122 146 169 193 217 231 248 Starting current LRA A 240 245 227 238 289 319 341 398 422 490 504 CHARGE This data is subjectto variations Refrigerant R410A C 1 C2 kg 6 0 6 0 6 0 6 0 7 8 7 8 7 8 7 8 9 0 9 0 10 0 10 0 12 0 12 0 16 0 16 0 24 0 24 0 25 0 25 0 27 0 27 0 Oil Circuit C1 C 2 dm 6 6 3 6 6 6 3 6 66 66 6 6 6 6 7 2 7 2 13 4 7 2 13 4 13 4 13 4 13 4 13 4 13 4 13 9 13 9 13 9 13 9 COMPRESSOR SCROLL N of compressors circ uits L n n 3 2 4 2 EVAPORATOR plates Quantity n 1 Water content 9 1 L 7 0 7 0 9 5 9 5 10 4 12 3 14 8 16 7 30 2 32 9 37 4 Victaulic water connections 0 27 2 27 2 27 2 21 2 21 2 27 2 2 2 27 2 3 3 3 CONDENSER plates Quantity n 1 Water content 9 1 L 9 5 9 5 12 3 12 3 14 8 16 7 16 7 30
28. Checkthe hydraulic seal of the joints 21 3 EMPTYING THE SYSTEM Before starting to drain the system tum off the unit Checkthatthe water system load restore tap is closed Openthe drain tap outside the machine and allthe vent valves of the system and the corresponding terminals If the system uses glycol this liquid should not be drained to the environ ment because itisa pollutant It must be collected and if possible reused WATER FEATURES PH 6 8 Electric conductivity less than 200 mV cm 25 Chloride ions lessthan 50 ppm Sulphuric acid ions lessthan 50 ppm Total iron lessthan 0 3 ppm Alkalinity M lessthan 50 ppm Total hardness lessthan 50 ppm Sulphur ions none ammonia ions none Silicone ions lessthan 30 ppm 22 PERCENTAGE DISTRIBUTION OF WEIGHTS ON SUPPORTS 22 1 PERCENTAGE DISTRIBUTION OF WEIGHTS ON SUPPORTS VERSION SIZE FROM 0500 TO 0750 EMPTY PERCENTAGE WEIGHTDISTRIBUTION ON MODEL CENTRE OF GRAVITY e AVX Weight Xg Yg A B G D NXW0500 i 578 410 832 27 28 22 23 319 NXW0500 1 pump 680 403 914 33 33 17 17 NXWO0500 2pumps 727 400 985 3296 3296 1896 1896 320 NXWO0500 3 774 398 1047 31 30 19 19 NXWO0500 4 pumps 822 396 1169 29 28 22 21 309 NXW0550 582 410 829 27 28 22 23 319 NXWO0550 1 pump 684 403 911 33 3
29. as such in cooling mode condenser isthe heat exchanger that works as such in heating mode 8 INXWPY 1004 4438805 03 4 DESCRIPTION OF COMPONENTS 41 COOLING CIRCUIT Compressor Scroll type hermetic compressors fitted with electrical carter compressors heat ing elements asstandard The heating element is powered automatically when the unit is still provided the unit is kept powered up Evaporator Plate type AISI 316 It is insulated extemally with closed cell material to reduce thermal dispersions Condensers Plate type AISI 316 It is insulated exte mally with closed cell material to reduce thermal dispersions Filter drier Ofthe mechanical cartridge type made of ceramicsand hygroscopic material able to trap impurities and any traces of humidity the cooling circuit Liquid separator for E version only Located on the suction point of the compressor to protect against any flow back of liquid refrigerant flooded start Ups operation in the presence of liquid Liquid indicator One percircuit for checking the refrig erant gasload and any humidity in the cooling circuit Thenmostatc valve The valve with extemal equaliseron the output of the evaporator modulates the gasflow to the evaporatorin ac cordance with the heat load in such a way asto assure a sufficient degree of overheating at the intake gas Taps They are located in the liquid and discharge lines and allow to intercept the r
30. correction coefficients Ct Ca Diagram Tab 8 1 1 allows you to obtain the correction coef ficients corresponding to each curve the temperature of the hot processed water referred to is reported assuming a dif ference in water temperature between the input and output of the condenserequalto 5 C KEY Ct Heating capacity tion coefficient Input power conection coefficient 8 2 FORATDIFFERENTFROM THE RATED VALUE For At different from 5 C to the evaporator refer to Tab 8 2 1 for the cooling capacity and input power conection factors 8 3 FOULING FACTORS The performance levels indicat ed in table 8 3 1 refer to condi tions with clean tubes with a fouling factor 1 For values dif ferent from the fouling factor multiply the values in the per formance table by the reported coefficients HEATING CAPACITY i 1 4 25 1 3 1 T 55 9 14 2 Ct Te 0 9 B 88 F 0 6 1 g 8 7 6 5 4 3 2 1 0 1 2 3 7 8 9 10 11 12 13 14 15 16 17 18 g Evaporator output water temperature At 5 C ABSO RBED POWER HEATING 1 3 1 1 12 a a a 0 8 0 7 88858470 CondenserOutput water temperature At 5 C 0 6
31. desuperheater D use the same positionsfor antivibration pad fixing asforthe AVX ofthe standard version desuperheateradditional weight 23 kg forall models from 500 to 800 size 29 kg forall models from 900 to 1400 size INXWPY 1004 4438805 03 51 22 2 PERCENTAGE DISTRIBUTION OF WEIGHTS ON SUPPORTS VERSION SIZES FROM 0800 TO 1400 EMPTY PERCENTAGE WEIGHTDISTRIBUTION ON SUPPORTS MODEL CENTRE OF GRAVITY AVX Weight Xg Yg A B D NXWO0800 989 421 1224 23 26 24 27 310 NXW0800 1 pump 1105 415 1244 28 30 20 21 NXW0800 2 1165 412 1297 28 29 21 22 Si NXWO800 3 pumps 1226 410 1345 27 28 22 23 NXWO800 4 pumps 1286 407 1389 26 27 23 24 NXW0900 1180 427 1217 23 27 23 27 314 NXW0900 1 pump 1296 421 1336 29 32 19 21 NXWO0900 2 pumps 1356 419 1391 28 31 20 21 Gh NXW0900 3 1417 416 1441 28 30 20 22 NXW0900 4 pumps 1477 414 1487 27 29 21 23 NXW1000 1417 428 1309 21 25 25 29 316 NXW1000 1 pump 1558 422 1421 27 31 20 22 NXW1000 2 pumps 1644 419 1481 27 30 21 23 Bes NXW1000 3 pumps 1730 416 1535 26 29 22 23 NXW1000 4 pumps 1765 415 1555 26 28 22 24 NXW1250 E 1461 426 1304 2296 2596 2596 2996 316 NXW1250 1 pump 1602 421 1414 2896 3196 2096 2296 654 NXW1250
32. must anyway be multiplied by the rated value of the sizes examined the lower axis advises the percentage of glycol necessary on the basis of the outside air tem perature considered If you want to calculate the percentage of glycol Extemal air temperature 220 1 210 AP 2 2 00 80 AP 4 80 70 2 150 P 5 B iso d ID 30 Oe 120 A EG 7 Gw 2 440 06 Gan Ph 0 99 4099 098 Pe 0 87 0 96 0 95 5 094 2 5 5 D Kal lt m 5 2 e n Y g oO z X 20 30 35 40 45 50 55 5 Glycol 96 S factor of the cooling capacity Pe Conection factor of the input power AP 1 Correction factor of the pressure dropsaverage temp 3 5 C AP 2 Correction factor of the pressure dropsaverage temp 0 5 C AP 3 Correction factor of the pressure dropsaverage temp 5 5 C AP 4 Correction factor of the pressure dropsaverage temp 9 5 C AP 5 Correction factor of the pressure dropsaverage temp 47 5 C Qw 1 Conection factor of the outputs evaporator average temp 9 5 C Qw 2 Correction factor of the outputs condenser average temp 47 5 C NB
33. the machine The weight difference between the types of configurator pumps low head and high head is negligible NOTE Version with desuperheater D use the same positions for antivibration pad fixing as forthe AVX of the standard version desuperheater additional weight 23 kg forall models from 500 to 800 size 29 kg forall models from 900 to 1400 size INXWPY 1004 4438805 03 53 22 4 PERCENTAGE DISTRIBUTION OF WEIGHTS ON SUPPORTS VERSION H SIZES FROM 0800 TO 1400 EMPTY PERCENTAGE WEIGHTDISTRIBUTION ON SUPPORIS MODEL CENTRE OF GRAVITY AVX Weight Xg Yg A B C D NXWO0800H H 1042 415 1227 2496 2696 2496 2696 310 NXWO800H H 1 pump 1157 410 1244 29 30 20 21 NXWO800H H 2 1218 408 1295 28 29 21 22 et NXWO0800H H 3 pumps 1278 406 1341 27 28 22 23 NXWO0800H H 4 pumps 1339 404 1384 27 27 23 23 NXW0900H H 1275 415 1240 23 25 25 27 314 NXW0900H H 1 pump 1391 411 1348 2996 3196 1996 2096 NXWO0900H H 2 pumps 1451 409 1399 29 30 20 21 NXW0900H 1512 407 1446 2896 2996 2196 2296 NXW0900H H 4 pumps 1572 405 1489 28 28 22 22 NXW1000H H 1545 413 1333 2296 2396 2796 2896 316 NXW1000H H 1 pump 1686 409 1435 2896 3096 2196 2296 NXW1000H H 2 1771 407 1489 28 29 22 22 NXW1000H
34. the unit in accordance with standard ISO 3744 62 VERSION H HEATPUMP WITH WATER SIDE INVERSION VERSION HL HEAT PUMP WITH WATER SIDE INVERSION SILENCED SIZE 0500 0550 0600 0650 0700 0800 0900 1000 1250 1400 Mod NXW vers UM 0500 0550 0600 0650 0700 0750 0800 0900 1000 1250 1400 Cooling capacity 1 kw 106 114 141 160 181 212 243 278 314 342 370 Total input power kW 23 2 25 0 30 3 34 2 38 9 45 5 52 0 60 4 68 8 74 7 80 6 Evaporatorwaterflow rate mann l h 18232 19608 24252 27496 31095 36431 41768 47876 53985 58831 63676 Evaporator pressure drop kPa 17 20 19 24 24 29 38 24 19 22 24 Condenser water flow rate Vh 22023 23693 29203 33089 37444 43858 50272 57750 65229 71038 76847 Pressure drop at condenser kPa 25 29 28 35 35 42 55 36 28 32 34 Heating capacity 2 kW 121 131 160 181 203 240 276 314 353 386 419 Totalinput power kw 27 2 29 4 35 9 40 4 45 5 53 8 62 1 70 6 79 2 86 7 94 1 Condenser waterflow rate yh 20812 22532 27520 31088 34982 41249 47515 54090 60665 66348 72030 Pressure drop at condenser kPa 22 26 24 31 30 37 49 24 28 30 Evaporator water flow rate
35. 0 Cd Heating capacity conection g Coefficient 5 0 9 811 FORATDIFFERENTFROM THE 40 42 44 46 48 50 RATED VALUE C Temperature of water produced at For At different from 5 C to the desupemeatertAt evaporator refer to Tab 8 11 1 for fig 8 10 1 the cooling capacity and input CORRECTION FACTORS FORATDIFFERENT powercorrection factors FROM THE CHILLER RATED VALUE 8 12 FOULING FACTORS Evaporator At different to nominal 3 5 8 10 factorcooling capacity 0 99 1 1 02 1 03 The performance levels indicated Correction factorinput power 0 99 1 101 1 02 table 8 12 1 refer to conditions Correction factor heating capacity 0 99 1 1 02 1 03 with clean tubes with a fouling 3 5 8 10 factor 1 For values different from the fouling factor multiply the val factorheating capacity x 0 9912 1 x 1 013 1 0227 ues in the performance table by Correction factorinput power 1 0144 1 0978 0 9633 the repotted coefficients ix 8 12 1 FOULING FACTOR Fouling factor K m W 0 00001 0 00002 0 00005 factorcooling capacity 1 0 99 0 98 Correction factorinput power 1 1 1 Correction factorheating capacity 1 1 0 99 Correction factorinput power 1 1 1 02 8 13 DESUPERHEA R PRESSU 20 RE DROPS The pressure drops in the charts refer to an average watertemperature of vues 10 C The table 813 1 iow he cor g 0 05 0650 0700 rectionsto appl
36. 0 3 5 3 8 Waterconnections VIC TAULIC diam 2 2 2 2 2 2 2 2 2 2 2 Weight of the recovery exchanger kg EVAPORATOR SIDE PUMPS 11 11 11 15 15 2 2 2 2 2 2 2 2 3 0 3 0 Input power Kw 2 2 2 2 2 2 3 0 3 0 3 0 4 0 4 0 4 0 4 0 4 0 2 6 2 6 2 6 34 34 5 0 5 0 5 0 5 0 6 2 6 2 Input current A 5 0 5 0 5 0 6 2 6 2 6 2 81 8 1 81 81 81 Evaporator useful head LP kPa 107 102 88 110 95 131 102 104 95 121 108 Evaporator useful head HP kPa 202 192 183 235 217 182 194 200 197 185 175 CONDENSER SIDE PUMPS U V 11 11 15 15 2 2 2 2 3 0 3 0 3 0 3 0 4 0 Input power Kw W ZK 22 22 22 3 0 3 0 4 0 4 0 4 0 5 5 5 5 5 5 U V 2 6 2 6 3 4 3 4 5 0 5 0 6 2 6 2 6 2 6 2 8 1 Input current A W ZK 5 0 5 0 5 0 6 2 6 2 81 8 1 8 1 110 1L0 1L0 Condenser useful head LP U V J kPa 90 81 100 75 120 94 109 111 99 76 135 Condenser useful head HP W ZK kPa 191 176 161 196 170 187 166 174 221 198 176 EXPANSION TANK Capacity 25 25 25 25 25 25 25 25 25 25 25 Pressure calibration H HL Bar 15 15 15 15 15 15 15 15 15 15 15 Quantity n 1 1 1 1 1 1 1 1 1 1 1 SOUND DATA Sound power 1 78 79 79 80 82 86 88 88 88 90 90 H dB A Sound pressure 2 46 47 47 48 50 54 56 56 56 58 58 Sound power 1 72 73 73 74 76 80 82 82 82 84 84 H HL dB A Sound pressure 2 40 41 41 42 44 48 50 50 50 52 52 DIMENSIONS Height mm 1835 1835 1835 1835 1835 1775 1775 1820 1820 1820 1820 Width mm 800 800 800 800 800 800 800 800 800 800 800 H Depth mm 1790 1790 1790
37. 0 30 28 22 28 22 610 380 0 10 28 28 28 28 610 610 NXWO600E 10 20 28 28 28 28 610 610 20 30 28 28 28 28 610 610 0 10 28 28 28 28 610 610 NXWO650E 10 20 28 28 28 28 610 610 20 30 28 28 28 28 610 610 0 10 28 28 28 28 610 610 0700 10 20 28 28 28 28 610 610 20 30 28 28 28 28 610 610 0 10 28 28 28 28 610 610 0750 10 20 35 28 28 28 640 610 20 30 35 28 28 28 640 610 0 10 28 28 28 28 610 610 0800 10 20 35 35 28 28 640 640 20 30 35 35 28 28 640 640 0 10 35 35 28 28 640 640 0900 10 20 35 35 28 28 640 640 20 30 35 35 28 28 640 640 0 10 35 35 35 35 950 950 NXW1000E 10 20 35 35 35 35 950 950 20 30 35 35 35 35 950 950 0 10 35 35 35 35 950 950 NXW1250E 10 20 35 35 35 35 950 950 20 30 35 35 35 35 950 950 0 10 42 42 35 35 990 990 NXW1400E 10 20 42 42 35 35 990 990 20 30 42 42 35 35 990 990 45 C Tevap 4 C Key C1 Cooling circuit 1 C2 Cooling circuit 2 32 INXWPY 1004 4438805 03 NXW COOLING LINES L Linea liquido Liquide line Ligne liquide Fl ssigkeitsleitung L nea l quido G Linea Cas Cas Line Ligne gaz Gasleitung L nea gas C C C C L C C C C c L Linea liquido Liquide line
38. 000 80000 90000 100000110000 120000 130000 140000 WATER FLOW 1 h The conection to apply to the pressure drops when the average watertemperature varies CONDENSER Average watertemperature 23 28 33 38 43 48 53 58 Correction factor 1 02 1 01 1 00 0 99 0 98 0 97 0 96 0 95 26 INXWPY 1004 4438805 03 10 USEFUL HEADS EVAPORATOR USEFUL HEAD HIGH HEAD VERSIO 350 300 250 E a 200 2 150 WATER FLOW RATE I h 100 lt 50 S 0 0 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000 WATER FLOW RATE l h CONDENSER USEFUL HEAD HIGH HEAD VERSION EVAPORATOR VERSION H 350 300 250 S 200 5 I 2 150 LLI 100 7 9 0 W lt jn A 9 d 0 0 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000 INXWPY 1004 4438805 03 27
39. 02 ditions of clean pipes with a Correction factor heating capacity 0 99 1 1 02 1 03 fouling factor 2 1 For values Condenser At different to nominal 3 3 5 8 10 different from the fouling Correction factor heating capacity 0 9912 1 1013 1 0227 factor multiply the values in Correction factor input power 1 0144 1 0 978 0 9633 the reported coefficients 8 9 1 FOULING FACTOR Fouling factor K m y WI 0 00001 0 00002 0 00005 factorcooling capacity 1 0 99 0 98 Correction factorinput power 1 1 1 factor heating capacity 1 1 0 99 Correction factorinput power 1 1 1 02 INXWPY 1004 4438805 03 21 8 10 HEATING CAPACTTY WITH DESU PERHEATER The heating capacity yielded in conditionsotherthan rated condi G tions are obtained by multiplying in 1 6 the rated values Pt Pa by the x respective correction coefficients 30 C 15 g Diagram Tab 8 10 1 allows you 8 45 to obtain the correction coef m 1 4 ficients corresponding to each C 40 curve the temperature of the E 13 c 35 5 hot processed water referred to is reported assuming a difference in 9 30 water temperature between the 25 1 2 input and output of the condenser equalto 5 1 1 1
40. 04 4438805 03 NXW 0800 VERSION TOTAL REC OVERY T AVX Model UM 0800 600 B mm 979 865 Outlet condenser Inlet evaporator Inlet condeser Outlet evaporator Outlet total recovery Inlet total tecovery POSITION Ls Model UM 0800 1775 M 300 N 3044 1553 343 225 m 369 1125 369 220 233 800 HYDRAULIC CONNECTION VICTAULIC IN OUT Evaporator plates 2 1 2 Condensater plates 0 2 1 2 Total Recovery plates 2 1 2 z z r IrO mimioouo INXWPY 1004 4438805 03 43 NXW 0900 VERSION TOTAL REC OVERY T D AVX Model U M 0900 A 600 B mm 979 C 865 Outlet condenser F Inlet evaporator Inlet condeser Outlettotalrecovery Inlet total recovery POSITION Model U M 1775 300 3044 1818 343 225 568 1165 568 260 213 800 369 OJZz zr Ir o mmioioocn 1125 HYDRAULIC CONNECTION VICTAULIC IN OUT U M 0900 H Evaporator plates 2 1 2 3 Condensater plat
41. 098 3096 2996 2196 2096 NXW0550H H 633 401 846 27 27 23 23 319 NXW0550H H 1 pump 735 396 920 33 33 17 17 258 NXWO0550H H 2 pumps 782 394 985 3296 3196 1996 1896 NXW0550H H 3 pumps 829 392 1043 3196 3096 2096 1996 Sub NXW0550H H 4 pumps 877 391 1095 3096 2996 2196 2096 NXWO600H H 734 406 911 2596 2696 2496 2596 301 NXWO600H H 1 pump 836 401 968 32 32 18 18 320 NXW0600H H 2 pumps 884 399 1023 31 31 19 19 z NXWO600H H 3 pumps 931 397 1073 30 30 20 20 NXWO600H H 4 pumps 978 395 1118 30 29 21 20 312 NXWO650H H 743 407 910 2596 2696 2496 2596 301 NXWO650H H 1 pump 848 401 970 3296 3296 1896 1896 Sii NXWO0650H H 2 pumps 899 399 1028 3196 3196 1996 1996 NXW0650H H 3 pumps 950 397 1080 3096 3096 2096 2096 311 NXWO650H 4 1000 396 1127 29 29 21 21 312 NXW0700H H 791 406 932 24 25 25 26 302 NXW0700H H 1 pump 896 401 1048 31 31 1996 1996 309 NXW0700H H 2 pumps 947 399 1099 30 30 20 20 311 NXW0700H H 3 pumps 997 397 1145 2996 2996 2196 2196 312 NXWO0700H 4 1048 395 1186 28 28 22 22 NXW0750H H 948 410 1103 24 25 25 26 310 NXW0750H H 1 pump 1064 405 1223 27 28 22 23 NXW0750H H 2 pumps 1124 403 1279 26 26 2496 2496 A NXW0750H H 3 pumps 1185 401 1330 25 25 25 25 NXWO0750H H 4pumps 1225 399 1361 27 27 23 23 A NOTE The number of pumps refers to the quantity physic ally present on
42. 1790 1790 2090 2354 2354 2354 2354 2354 Weight kg 628 633 734 743 791 948 1042 1275 1545 1577 1657 Height mm 1885 1885 1885 1885 1885 1885 1885 1885 1885 1885 1885 Width mm 800 800 800 800 800 800 800 800 800 800 800 H HL Depth mm 2090 2090 2090 2090 2090 2090 2354 2354 2354 2354 2354 Weight kg 801 805 907 915 963 1121 1240 1473 1743 1775 1855 Height mm 1775 1775 1775 1775 1775 1775 1775 1850 1850 1850 1850 Width PUMPSH mm 800 800 800 800 800 800 800 800 800 800 800 Depth mm 3020 3020 3020 3020 3020 3020 3420 3420 3420 3420 3420 Height mm 1885 1885 1885 1885 1885 1885 1885 1885 1885 1885 1885 Width PUMPS HL mm 800 800 800 800 800 800 800 800 800 800 800 Depth mm 3020 3020 3020 3020 3020 3020 3420 3420 3420 3420 3420 1 SOUND POWER Performance valuesreferto cooling mode Desuperheater Watertemperature to desuperheater 45 50 C Watertemperature condenser 30 C 35 C Watertemperature evaporator 12 C 7 C 16 INXWPY 1004 4438805 03 Aermec determinesthe value of the sound powerbased on the measurements taken in accordance with standard 9614 2 with respect to the certification requirement Eurov ent 2 SOUND PRESSURE Sound pressure in free field on reflecting plane direction fact Q 2 at 10 metres distance from the extemal surface of the unit in accordance with standard ISO 3744 6 3 VERSION E C
43. 2 45 5 45 5 49 9 Victaulic water connections 0 27 2 21 2 27 2 21 2 21 2 27 2 27 2 27 2 3 34 3 HEAT REC OVERY PLATE HEAT Recovered heating capacity kW 120 130 162 183 206 244 281 320 359 390 422 Quantity n 1 Total input power kW 28 9 31 1 38 9 43 5 49 5 58 3 67 3 76 6 86 2 93 8 101 5 Waterflow rate recovery 9 Vh 20610 22340 27890 31430 35440 41890 48330 55020 61710 67120 72530 2 D EIS Reovely kPa 20 23 24 31 31 38 51 32 25 29 30 Water connections VIC TAULIC 0 24 2 27 2 21 2 27 2 21 2 27 2 24 2 2 2 3 3 3 Reference data In cooling operation 1 In heating operation 2 processed watertemperature 7C processed watertemperature 45 Condenser inlet watertemperature 30 C Evaporator inlet watertemperature 10 C At 5 C At 5 C Total recovery Water temperature to total recovery 45 50 C Water temperature to evaporator 12 7 C INXWPY 1004 4438805_03 13 Mod NXW vers 0500 0550 0600 0650 0700 0750 0800 0900 1000 1250 1400 DESUPERHEATER PLATES Recovered heating capacity kW 21 0 22 6 27 2 29 0 32 4 37 6 43 0 49 1 55 0 59 4 62 0 Quantity n 1 Desuperheater water flow rate 9 Vh 3620 3890 4680 49
44. 22 309 NXWOSOOL L 1 pump 932 392 895 34 33 17 16 321 NXWO500L 1 2 979 391 948 33 32 18 17 NXWO500L L 3 pumps 1026 389 996 32 31 19 18 NXWO500L L 4pumps 1074 388 1183 29 27 23 21 312 NXW0550L L 755 399 832 28 27 23 22 309 NXW0550L L 1 pump 936 392 892 34 33 17 16 321 NXWO550L 1 2 983 391 946 33 32 18 17 NXWO550L L 3pumps 1031 390 994 3296 3196 1996 1896 NXW0550L L 4pumps 1078 389 1180 2996 2796 2296 2196 312 NXWO600L L 854 404 888 26 26 24 24 310 NXWO600L L 1 pump 1036 397 933 33 32 17 17 sid NXWO600L L 2pumps 1083 395 979 3296 3296 1896 1896 NXWO600L L 3pumps 1130 394 1022 3296 3196 1996 1996 312 NXWO600L L 4 pumps 1178 393 1191 28 27 22 22 NXWO650L L 863 405 887 2696 2696 2496 2496 303 NXWO650L L 1 pump 1048 397 935 3396 3296 1796 1796 3 NXWO650L L 2pumps 1098 396 984 3296 3196 1896 1896 NXWO650L L 3 pumps 1149 394 1029 3196 3196 1996 1996 312 NXWO650L L 4pumps 1200 393 1197 2896 2796 2396 2296 310 NXW0700L L 900 407 901 25 26 2496 2596 303 NXW0700L L 1 pump 1084 400 1085 30 30 20 20 NXW0700L 1 2 1135 398 1126 2996 2996 2196 2196 i NXW0700L L 3 pumps 1186 396 1164 29 28 22 21 NXWO7OOL L 4 pumps 1236 395 1198 28 27 22 22 NXW0750L L 1054 410 1087 24 25 25 26 310 NXW0750L L 1 pump 1249 403 1271 29 29 21 21 NXW0750L 1 2 1310 401 1318 28 28 22 22 T NXWO750L
45. 22 7 22 8 22 9 22 10 22 11 22 12 23 23 1 23 2 23 3 23 4 24 24 1 24 2 24 3 25 25 1 25 2 25 3 25 4 25 5 25 6 26 27 28 dbi E EP 34 Sound levels of standard NXW version 34 Sound levels of standard silenced version 4 34 Safety and check parameter setting 35 Capacity control 36 Selection and place of installation 38 Positioning ger 38 Minimum technical spaces mm 38 Dimensional tables sse 39 Hydraulic circuit 50 Extemal hydraulic circuit recommended 50 System load utens Emptying the system Percentage distribution of weights on supports 51 Percentage distribution of weights on supports version size from 0500 to 0750 51 Percentage distribution of weights on supports version sizes from 0800 to 1400 52 Percentage distribution of weights on supports version H sizes from 0500 to 0750 53 Percentage distribution of weights on supports version H sizes from 0800 to 1400 54 Percentage distribution of weights on supports version L sizes from 0500 to 0750 55 Percentage distribution of weights on supports version L sizes from 0800 to 1400 56
46. 3 17 17 NXW0550 2 pumps 732 401 982 32 32 18 18 320 NXW0550 3 pumps 779 398 1043 31 31 19 19 NXW0550 4 pumps 826 396 1165 29 28 22 21 309 NXW0600 a 682 414 900 25 27 23 25 301 NXWO0600 1 784 408 962 32 33 17 18 320 0600 2 pumps 831 405 1021 31 31 19 19 NXW0600 3 pumps 878 403 1074 30 30 20 20 dnd NXWO600 4pumps 926 401 1181 28 28 22 22 310 NXW0650 690 415 899 25 27 23 25 301 NXW0650 1 pump 796 408 965 31 33 17 18 NXWO0650 2 pumps 847 406 1027 31 31 19 19 309 NXW0650 3 pumps 897 403 1082 30 30 20 20 NXW0650 4 pumps 948 401 1189 28 28 22 22 310 NXW0700 9 727 417 915 24 26 24 26 301 NXW0700 1 833 411 1043 30 32 19 20 NXW0700 2 pumps 883 408 1097 29 30 20 21 309 NXW0700 3 pumps 934 405 1146 28 29 21 22 NXW0700 4 984 403 1190 28 28 22 22 310 NXW0750 882 419 1082 24 26 24 26 303 NXW0750 1 pump 997 413 1212 29 31 19 21 NXW0750 2 pumps 1058 410 1273 28 30 21 22 NXW0750 3 pumps 1118 408 1327 27 28 22 22 e NXW0750 4 pumps 1159 406 1360 2796 2896 2296 2396 A NOTE The numberof pumps refers to the quantity physically present on the machine The weight difference between the typesof configurator pumps low head and high head isnegligible NOTE Version with
47. 414 1287 25 27 23 25 652 NXW0750 LT 1312 418 1482 24 27 23 2696 652 NXW0800 1441 418 1490 24 26 24 26 652 NXW0900 1732 425 1662 24 27 23 26 323 NXW1000 2045 431 1784 22 26 24 28 324 NXW1250 2094 430 1775 22 26 24 28 324 NXW1400 2202 430 1805 22 25 2596 2996 324 22 11 PERCENTAGE DISTRIBUTION OF WEIGHTS ON SUPPORTS VERSION CONDESERLESS E ALL SIZE EMPTY PERCENTAGE WEIGHTDISTRIBUTION ON SUPPORTS MODEL CENTRE OF GRAVITY Weight Xg Yg A B e D NXW0500 525 396 771 29 29 21 21 319 NXW0550 530 397 768 29 29 21 21 319 NXW0600 610 399 835 28 27 23 22 301 NXW0650 619 400 834 27 27 23 23 301 NXW0700 638 400 840 27 27 23 23 301 NXW0750 E 796 406 1013 26 27 23 24 303 NXW0800 904 409 1161 25 27 23 25 310 NXW0900 1044 411 1130 26 27 23 24 314 NXW1000 1260 413 1237 24 25 25 26 316 NXW1250 1304 412 1234 24 25 25 26 316 NXW1400 1358 409 1252 24 25 25 26 315 22 12 PERCENTAGE DISTRIBUTION OF WEGHTS ON SUPPORTS VERSION CONDENSERLESS SILENCED MODE E ALL SIZE EMPTY PERCENTAGE WEIGHTDISTRIBUTION ON SUPPORTS MODEL CENTRE OF GRAVITY AVX Weight Xg Yg A B C D NXW0500 697 388 787 30 28 22 21 309 NXW0550 702 389 786 30 28 22 21 NXW0600 782 391 835 28 27 23 22 NXW0650 791 392 836 28 27 23 22 NXW0700 810 392 839 28 27 23 22 NXW0750 LE 968 399
48. 5 315 317 L 1 PUMP 321 321 311 311 651 651 652 653 654 659 659 L 2 PUMPS 311 311 31 311 651 651 652 653 654 659 659 L 3 PUMPS 311 311 312 312 651 651 652 653 654 659 659 L 4 PUMPS 312 312 312 310 651 651 652 653 654 659 659 HL 309 309 310 303 304 314 314 315 317 317 318 HL 1 PUMP 311 311 311 311 651 652 665 653 659 659 659 HL 2 PUMPS 311 311 312 313 651 652 665 653 659 659 659 HL 3 PUMPS 312 312 312 313 651 652 665 653 659 659 659 HL 4 PUMPS 312 312 312 313 651 652 665 653 659 659 659 E 319 319 301 301 301 303 310 314 316 316 315 E 1 PUMP 320 320 320 320 320 312 651 665 653 654 654 E 2 PUMPS 320 320 309 309 309 312 651 665 653 654 654 E 3 PUMPS 320 320 309 309 309 312 651 665 653 654 654 E 4 PUMPS 309 309 310 310 310 312 651 665 653 654 654 LE 309 309 310 303 303 310 314 314 315 315 317 LE 1 PUMPS 321 321 311 311 651 651 652 653 654 659 659 2 PUMPS 311 311 31 311 651 651 652 653 654 659 659 LE PUMPS 311 311 312 312 651 651 652 653 654 659 659 LE 4 PUMPS 312 312 312 310 651 651 652 653 654 659 659 T 303 303 310 310 310 314 652 315 322 322 322 LT 312 312 651 651 652 652 652 323 324 324 324 RIF Current phase advancer Parallel connection with the motor makes the reduction of input current possible Itcan only be installed when the machine is being made and must therefore be specified when the order is placed ALL RIF98 RIF98 RIF95 RIF95 RIF95 RIF95 RIF95 RIF96 RIF97 RIF97 RIF97 DRE It permits the reduction of the starting current needed by the
49. 835 1835 mm 300 300 300 300 300 369 369 369 369 369 1125 1125 1125 1125 1125 225 225 225 225 225 343 343 343 343 343 INLET EVAPORATOR OUTLET CONDENSER GO m o gt Model U M 0500 0550 0600 0650 0700 EVAPORATOR PLATES Hydraulic connection Victaulic IN OUT 2 1 2 2 1 2 2 1 2 21 2 21 2 CONDENSER PLATES Hydraulic connection Victaulic IN OUT 1 27 2 21 2 27 2 21 2 21 2 INXWPY 1004 4438805 03 39 Version STANDARD 0750 0800 900 1000 1250 1400 I AVX Model 0750 0800 0900 1000 1250 1400 A 300 300 300 300 300 300 mm 1190 1190 1454 1464 1464 1464 C 35 35 35 35 35 35 D 70 70 70 70 70 70 VERSION HEAT PUMP WITH WATER SIDE INVERSION OUTLET CONDENSER INLETEVAPORATOR INLET CONDENSER OUTLETEVAPORATOR CYCLE INVERSION COOLING MODE OUTLETEVAPORATOR INLET CONDENSER INLET EVAPORATOR OUTLET CONDENSER POSITION M F Model U M 0750 0800 0900 1000 1250 1400 A 1600 1600 1600 1600 1600 1600 B 175 175 175 175 175 175 C 300
50. 90 1190 1190 1190 1190 a e e C 35 35 35 35 35 35 E D 70 70 70 70 70 70 NXW 500 550 600 650 700 GASCI NXW 750 GASC1 GASC2 Liquid C1 Liquid C2 i oat M B A S m 2 edi q o 5 D cR Inlet evaporator G Inlet evaporator Outlet evaporator POSITION Model U M 0500 0550 0600 0650 0700 A 1835 1835 1835 1835 1835 B 1790 1790 1790 1790 1790 C 800 800 800 800 800 D 1124 1124 1124 1124 1124 E Him 300 300 300 300 300 F 225 225 225 225 225 G 94 94 94 94 94 H 103 103 103 103 103 71 5 71 5 71 5 71 5 71 5 L 1106 5 1106 5 1106 5 1106 5 1106 5 HYDRAULIC CONNECTION Evaporator plates 2 1 2 INXWPY 1004 4438805_03 Outlet evaporator 0750 1775 1790 800 1124 300 225 94 103 nm wm 71 5 1106 5 HYDRAULIC CONNECTION I N OUD
51. 90 5570 6460 7390 8450 9460 10210 10660 Desuperheater pressure drops kPa 2 0 23 33 3 8 4 7 6 4 8 3 2 4 3 0 3 5 3 8 Waterconnections VICTAULIC 0 2 2 2 2 2 2 2 25 25 2 2 EVAPORATOR SIDE PUMPS 11 11 11 1 5 1 5 2 2 2 2 2 2 2 2 3 0 3 0 Input power Kw 22 22 22 3 0 3 0 3 0 40 40 40 40 40 2 6 2 6 2 6 3 4 3 4 5 0 5 0 5 0 5 0 6 2 6 2 Input current A 5 0 5 0 5 0 6 2 6 2 6 2 8 1 8 1 8 1 8 1 8 1 Evaporatoruseful head LP kPa 91 82 70 89 69 102 86 68 74 102 88 Evaporator useful head HP 181 173 167 213 191 152 180 166 177 167 158 CONDENSER SIDE PUMPS U VJ 11 11 1 5 1 5 22 22 3 0 3 0 3 0 3 0 40 Input power Kw W ZK 22 22 22 3 0 3 0 4 0 4 0 4 0 5 5 5 5 5 5 U VJ 2 6 2 6 34 34 5 0 5 0 6 2 6 2 6 2 6 2 81 Input current A W ZK 5 0 5 0 5 0 6 2 6 2 8 1 81 81 110 110 110 Condenser useful head LP J kPa 86 76 92 67 111 88 99 104 93 69 128 Condenser useful head HP W ZK kPa 188 171 155 188 161 182 158 168 215 190 166 EXPANSION TANK Capacity l 25 25 25 25 25 25 25 25 25 25 25 Calibration pressure L Bar 1 5 1 5 1 5 1 5 1 5 1 5 1 5 1 5 1 5 15 15 Quantity n 1 1 1 1 1 1 1 1 1 1 1 SOUND DATA Sound power 1 78 79 79 80 82 86 88 88 88 90 90 Sound pressure 2 46 47 47 48 50 54 56 56 56 58 58 Sound power 1 72 73 73 74 76 80 82 82 82 84 84 Sound pressure 2 b MEM 40 41 41 42 44 48 50 50 50 52 52 DIMENSIONS Height mm 1835 1835 1835 1835 1835 1775 1775 1820 1820 1820 1820 Wid
52. AERMEC air conditioning 9 AERMEC COMPANY QUALITY SYSTEM N MAN ISO 9001 2000 Cert n 0128 5 E UJ F O V E M T CERTIFIED PERFORMANCE 4438805 04 www eurovent certification com AERMEC S P A INXWPY 1101 4438805_04 Dear customer Thank you for choosing AERMEC It isthe fruit of many yearsof experience and special design studies and has been made of the highest grade materials and with cutting edge technology In addition all ourproductsbearthe EC mark indicating that they meet the require ments of the European Machine Directive regarding safety The quality level isbe ing constantly monitored so AERMEC products are synonymous with Safety Quality and Reliability The data may undergo modifications considered necessary forthe improvement of the product atany time and withoutthe obligation for any notice thereof Thank you again AERMEC S p A AERMEC S p A reservesthe right at all timesto make any modification forthe improvement of its product and is not obliged to add these modification to machines of previous manufacture that have already been delivered orare being built Summary 1 1 1 1 2 2 3 3 1 32 3 3 3 4 4 4 1 4 2 4 3 4 4 4 5 5 5 1 5 2 5 3 6 6 1 6 2 6 3 10 11 12 13 131 14 General wamings esses 6 Storage of the
53. Although the graph reaches outside air temperatures of 40 C it is necessary to maintain the machine s operating limits as reference on the basis of the temperature of the processed water you must enter from the right hand axis and once you have intersected the curve trace a vertical line which in tum will intercept all the other curves the points obtained from the upper curves represent the co efficients forthe cooling capacity and input power forthe flow rates and the pressure drops remember thatthese coefficients mus anyway be multiplied by the rated value of the sizes examined the lowera xis advisesthe percentage of glycol necessary to produce wateratthe required temperature Rememberthat the initial sizes OUTSIDE AIR TEMPERATURE and PROCESSED WATER TEM PERATURE are not directly linked to each other so it isnot possible to enter the curve of one of these sizes and obtain the corresponding point on the othercurve INXWPY 1004 4438805 03 31 14 COOLING LINES Refrigerant R410A Refrigerant R410A Line length Delivery line mm Liquid line mm per mete of line per mete of line Model m g m g m C1 c2 C1 c2 C1 c2 0 10 28 22 28 22 610 380 0500 10 20 28 22 28 22 610 380 20 30 28 22 28 22 610 380 0 10 28 22 28 22 610 380 0550 10 20 28 22 28 22 610 380 2
54. EZE ALARM The anti freeze alarm isactive asif the machine istumed off or if the machine is standby mode In orderto prevent breakage of the plate type exchanger due to freezing water contained the compressor is locked if the machine is tumed on under 4 C and the heater starts up if standby below 5 C If the temperature detected by the probe in the exchangeroutput and in the chiller input is below 44 C WARNING THE ANTI FREEZE SET TEMPERATURE CAN BE VARIED ONLY BY AN AUTHORISED SERVICE CENTRE AND ONLY AFTER VERI FYING THATIN THE WATER CIRCUITIS AN ANTIFREEZE SOLUTION The intervention of this alarm setsthe compressor block and not of the pump block which remainsactive and the heater starts up if installed For resetting the nomal functions the wateroutput temperature hasto be over 44 C the reset is manual 26 REGULAR MAINTENANCE Any cleaning operation isforbidden before disconnecting the unit from the power supply Check for voltage before operating Periodic maintenance is essential to maintain the unit in perfect working orderunderthe functional aswell as the energetic aspect Therefore it is essential to provide yearly controls for the 26 6 1 Hydraulic circ uit CONTROL Watercircuit filling Waterfilter cleaning Flow switch control Airin the circuit leaks Thatthe waterflow rate to the evaporatorisalwaysconstant hydraulic piping thermal insula tion state
55. In nomal conditions no Technical Assistance Service operation is needed forthe refrigerant gascheck In the long run however small leaks from the joints may arise Due to these leaks the refrigerant comes out and the circuit is INXWPY 1004 4438805 03 65 drained causing the unit to malfunc tion In these cases the refrigerant leakage points are found and repaired and the cooling circuit is recharged operating in compliance with Law 28 December 1993 no 549 27 6 1 Loading procedure The loading procedure is asfollows Empty and dehydrate the entire cooling circuit usng a vacuum The refrigerant R410A hasto be loaded only in liquid phase Different operating conditions from the normal can result in different values Leak testing orleaking research must be carried out only by using refrigerant gas RA10A by checking with a suitable leak detection It is prohibited to use oxygen or acetylene or other flammable or poisonousgasin the cooling circuit It is advisable to keep a ma chine booklet not supplied but provided by the user in orderto keep trace of the operationscamed out on the unit In this way it will be eas ierto organise the operations properly and facilitate failure prevention and troubleshoot ing in the machine In the booklet write down date type of operation camed out regular mainte nance inspection or repair description of the operation measures taken pump conne
56. LING FACTOR Fouling factor K m W 0 00001 0 00002 0 00005 Conection factorcooling capacity 1 0 99 0 98 Correction factorinput power 1 1 11 factorheating capacity 1 1 0 99 Correction factorinput power 1 1 1 02 INXWPY 1004 4438805 03 23 8 17 PRESSURE DROPS TOTAL RECOVERY The pressure drops in the charts refer to an average watertemperature of 50 C The table 8 17 1 shows the cor rectionsto apply to the pressure drops with a variation in average water temperature s ul WATER FLOW l h PRESSURE DROPS TOTAL REC OVERY O 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000 110000 120000 130000 24 INXWPY 1004 4438805 03 Average watertemperature 5 10 15 20 30 40 50 Correction factor 1 22 1 10 1 08 1 06 1 04 1 02 1 00 Tab 8 17 1 9 TOTAL PRESSURE DROPS 9 1 EVAPORATOR IN COOLING OPERATION Water flow rate I h MIN e MAX The diagram pressure dropsare related to an NXW average watertemperature of 10 Model U M Waterflow rate MIN Water flow rate MAX 0500 0800 I h 7920 55800 0900 1400 I h 16920 120600 ATIENTION Lower water flow spee
57. Ligne liquide Fl ssigkeitsleitung L nea l quido G Linea Gas Gas Line Ligne gaz Gasleitung L nea gas HHUH THHHHHHHHHUHH For further information max difference of level between evaporating and condensing unit etc concactus INXWPY 1004 4438805 03 33 15 SOUNDDATA 15 1 SOUND LEVELS OF STANDARD NXW VERSION Sound power Aermec determinesthe sound power value on the basis of measurements taken in accordance with standard 9614 2 in compliance with the Eurov ent certification Sound pressure Sound pressure in free field on a reflect ing plane directionalfactor Q 2 in accordance with standard ISO 3744 The rated value refersto Evaporator water temperature 12 7 C Condenserairtemperature 152 SOUND LEVESOFSIAND ARD SILENCED VERSION 4 34 INXWPY 1004 4438805 03 Pressure Sound powerby central band frequency ONET dB A dB A NXW dB A 10m im 125 250 500 1000 2000 4000 8000 0500 78 46 61 495 57 4 719 75 3 717
58. OHL HL 1 pump 1680 402 1406 29 30 21 21 NXW0900HL HL 2 pumps 1740 401 1446 29 29 21 21 Bea NXW0900HL HL 3 pumps 1801 400 1484 2896 2896 2296 2296 NXW0900HL HL 4 pumps 1861 399 1519 2896 2896 2296 2296 NXW1000HL HL 1743 408 1322 2296 2396 2796 2896 317 NXW1000HL HL 1 pump 1975 402 1471 2896 2996 2296 2296 NXW1000HL HL 2 pumps 2061 401 1516 2896 2896 2296 2296 Eo NXW1000HL HL 3 pumps 2147 399 1558 27 27 23 23 NXW1000HL HL 4 pumps 2182 399 1575 27 27 23 23 NXW1250HL HL 1775 408 1313 22 23 27 28 317 NXW1250HL HL 1 pump 2007 403 1460 28 29 21 22 NXW1250HL HL 2 pumps 2093 402 1506 28 28 22 22 256 NXW1250HL HL 3 pumps 2178 400 1548 27 27 23 23 NXW1250HL HL 4 pumps 2214 399 1564 27 27 23 23 NXW1400HL HL 1855 408 1331 22 23 27 28 318 NXW1400HL HL 1 pump 2087 403 1471 28 29 21 22 NXW1400HL HL 2 pumps 2173 401 1514 28 28 22 22 o NXW1400HL HL 3 pumps 2258 400 1554 27 27 23 23 NXW1400HL HL 4 pumps 2294 399 1570 27 27 23 23 NOTE The numberof pumpsrefersto the quantity physically present on the machine The weight difference between the typesof configurator pumps low head and high head isnegligible NOTE Version with desuperheater D use the same positionsforantivibration pad fixing asforthe AVX of the standard version desuperheateradditional weight 23 kg forall models from 500 to 800 size 29 kg forall mo
59. ON POSITION POSITION Model 0750 0800 0900 1000 1250 1400 Model 0500 0550 0600 0650 0700 1600 1600 1600 1600 1600 1600 980 980 980 980 980 B 175 175 175 175 175 175 B Pim 300 300 300 300 300 C mm 300 300 300 300 300 300 C 1790 1790 1790 1790 1790 D 1790 2054 2054 2054 2054 2054 D 1885 1885 1885 1885 1885 E 1885 1885 1885 1885 1885 1885 NXW 0500 0700 VERSION TOTALE RECOVERY T AVX Model U M 0500 0550 0600 0650 0700 0750 A 390 390 390 390 390 390 B 932 932 932 932 932 932 B A 8 2 Outlet condenser E F 1 i coud Inlet condenser Outlet evaporator Cr 5 UX zi Outlet total recovery Inlet total recovery o o H POSITON Model 0500 0550 0600 0650 0700 A 1775 B 300 2644 D 1553 E 343 F 225 G 369 H m 1125 369 220 M 233 N 800 369 P 1125 HYDRAULIC CONNECTION VICTAULIC IN OUT Evaporator plates 2 1 2 Condenser plates 2 1 2 Total recovery plates 2 1 2 42 INXWPY 10
60. ONDENSERLESS VERSION LE CONDENSERLESS SILENC ED SIZE 0500 0550 0600 0650 0700 0800 0900 1000 1250 1400 Mod NXW vers UM 0500 0550 0600 0650 0700 0750 0800 0900 1000 1250 1400 Cooling output kW 105 113 139 156 177 209 241 273 305 332 360 C14C2 43 5461 5 43 5469 5 69 5 69 5 78 78 88 5488 5 88 5 120 5 120 5 120 5 136 5 136 5 152 5 152 5 166 166 180 180 Total input power kW 24 9 26 8 33 0 36 9 41 7 48 8 56 5 64 7 72 3 78 8 85 3 Evaporator E LE Waterflow rate Vh 18031 19480 23988 26918 30381 35935 41488 46976 52463 57187 61909 Evaporator pressure drop kPa 26 31 28 35 38 4l 43 48 31 32 32 ENERGY INDEXES EER E LE W W 4 22 4 23 4 22 4 24 4 23 4 28 4 27 4 22 4 22 4 22 4 22 ELECTRICAL DATA 400V 3 50Hz Input current cooling A 54 1 56 7 65 4 70 6 96 3 105 3 114 2 134 4 154 6 156 8 160 2 Maximum current A 75 80 96 107 122 146 169 193 217 231 248 Starting current A 240 245 227 238 289 319 341 398 422 490 504 OILCHARGE Circuit C1 C 2 dm 66 36 6 6 3 6 6 6 6 6 6 6 6 6 7 2 7 2 13 4 7 2 13 4 13 4 13 4 13 4 13 4 13 4 13 9 13 9 13 9 13 9 Refrigerant dm only with a watertight charge COMPRESSOR SC ROLL N of compressors circuits E LE n n 3 2 4 2 EVAPORATOR plates Quanti
61. Percentage distribution of weights on supports version HL sizes from 0500 to 750 57 Percentage distribution of weights on supports version HL sizes from 0800 to 1400 58 Percentage distribution of weights on supports version total recovery T all size 59 Percentage distribution of weights on supports version silenced mode with total recovery T all size 59 Percentage distribution of weights on supports version condeserless E all size 59 Percentage distribution of weights on supports version condenserless slenced mode E all size 60 Electric al wirings Recommended section of electric cables Connection to the power supply Electrical power connection Auxiliary connections at the user installer expense63 Control and first start up 64 Preparation for commissioning 64 First commissioning of the machine 64 Season 0 64 Operation 65 Cooling set point Heating set point eis Compressor start up delay Circulation 2 2
62. Where provided the percentage of glycol 26 6 2 Electric circuit CONTROL Efficiency of safety devices Electrical power supply Electrical power consumption Connections tightened Compressorcasing heater operation WARNING ATANY INTERVENTIONS OF THIS ALARM ITIS RECOMMENDED TO IMMEDIATELY CONTACTTHE NEARESTTECHNICAL SERVICE ASSISTANCE 25 6 WATER FLOW RATE ALARM The PGD1 providesthe management waterflow rate alarm command ed from a flow switch installed on the machine asstandard This safety type can occurafterthe first 10 secondsof operation of the pump if the waterflow rate is not suffic ient This alarm setsthe block of the com pressor and the pump 26 6 3 Cooling circuit CONTROL Compressorconditions Efficiency of the tube core ex changerheater Working pressure Losstest forthe control of the the cooling circuit sealing High and low pressure switches operation Perform the necessary checkson the filter drierto verify their efficiency 26 6 4 Mechanical controls CONTROL The screws compressors and the electric box of the unit extemal pan elling are properly tightened If they are poorly tightened they produce abnormal noise and vibrations The structure conditions If necessary treat oxidised parts with paints suitable for eliminating orreducing oxidation 27 EXIRAORDINARY MAINTENANCE The NXW are loaded with R410A gas and tested in the factory
63. cted to both the low and high pressure test points until the vacuum gauge readsabout 10 Pa Wait some minutes and check that this value doesnot go back again over 50 Pa because they can cause explosions orintoxication Connect the refrigerant gas bomb ora load cylinderto the grip on the low pressure line Charge the amount of refrigerant gasindicated on the characteristics plate of the machine Afterany operation control that the liquid indicator indicates a dry It is forbidden to CHARGE the cooling circuits with a refrigerant different from the one indicated If a different refrigerant gas is used the compressor may be seriously damaged circuit dry green In case of partial lossthe circuit hasto be emptied completely before reloading it DISPOSAL Provided that the disposal of the unit is ca med out according to the rules in force in different countries 66 INXWPY 1004 4438805 03 70 INXWPY 1004 4438805 03 INXWPY 1004 4438805 03 71 72 INXWPY 1004 4438805 03 AERMEC conditioning AERMEC ALITY SYSTEM paperrecycled recycled paper LA x ICIM A 5 Pa p ie re rec yc le 180 9001 2000 Cert n 0128 5 C recycled paper AERMEC SPA The technical data in the following documentation are not binding Aermec reserves the right to make all the modifications considered necessary for improving the product atany time
64. d its physical position and room temperature WARNING Check thatall powercables are conectly secured to the terminals when switched on for the first time and after 30 days of use Afterwards check the connection of the powercables every six months Slack terminals could cause the cables and components to overheat 23 2 CONNECTION TO THE POWER SUPPLY Check there isno voltage on the electric line you wantto use 23 2 1 To access the elec tric box Tumthe electrical panel screws counter Cloc kwise direction Tumthe handle of the door block disconnecting switch to OFF see figure In this way the electrical panelcan be accessed 23 3 ELECTRICAL POWER CONNECTION Forthe functional connection of the unit run the power supply cable to the electrical panel inside the unit fig Land connect it to the disconnecting switch terminalsob serving the phase and the earth fig 2 23 4 AUXILIARY CON NECTIONS AT THE USER INSTALLER EXPENSE For installation requirements referto the wiring diagram supplied with the unit The wiring diagram together with the manuals must be kept in good conditionsand readily ACCESSIBLE FOR FUTURE OP ERATIONS ON THE UNIT L 2 INXWPY 1004 4438805_03 63 24 CONTROLAND HRST STARF UP 24 1 PREPARATION FOR COMMISSIONING Bear in mind that free start up service isoffered by the Aermec Technical Service forthe unit of this s
65. d might get some substance deposited in the heat exchanger Higher water flow speed might cause mechanical damages EVAPORATOR PRESSURE DROPS VERSION 160 8 j 140 N 120 g 100 2 9 g i 40 20 0 0 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000 110000 120000 130000 140000 WATER FLOW RATE I h The correction to apply to the pressure drops when the average watertemperature varies EVAPORATOR Average watertemperature 5 10 15 20 30 40 50 Conection factor 1 02 1 0 985 097 0 95 093 0 91 INXWPY 1004 4438805 03 25 9 2 CONDENSER IN COOLING OPERATION The diagram pressure drops are related to an average watertemperature of 30 Water flow rate I h MIN MAX NXW Model U M Waterflow rate MIN Waterflow rate MAX 0500 0800 I h 7920 55800 0900 1400 I h 16920 120600 ATIENTION Lower water flow speed might get some substance deposited in the heat exchanger Higher water flow speed might cause mechanical damages 160 CONDENSER PRESSURE DROPS VERSION 2 H EVAPORATOR VERSION H 120 8 PRESSURE DROPS kPa 8 20 0 10000 20000 30000 40000 50000 60000 70
66. dels from 900 to 1400 size 58 INXWPY 1004 4438805 03 22 9 PERCENTAGE DISTRIBUTION OF WEIGHTS ON SUPPORTS VERSION TOTAL REC OVERY T INXWPY 1004 4438805 03 59 ALL SIZE EMPTY PERCENTAGE WEIGHTDISTRIBUTION ON SUPPORTS MODEL CENTRE OF GRAVITY AVX Weight Xg Yg A B C D NXW0500 728 419 1200 26 29 21 23 303 NXW0550 733 419 1195 27 29 2196 2396 303 NXW0600 852 424 1269 25 28 22 25 310 NXW0650 860 4045 1235 27 2796 2396 2396 310 NXW0700 914 428 1303 24 28 22 26 310 NXW0750 T 1060 431 1477 2396 2796 2396 2696 314 NXW0800 1190 430 1487 23 27 23 27 652 NXW0900 1443 437 1658 23 28 22 27 315 NXW1000 1756 442 1801 21 26 24 29 322 NXW1250 1805 440 1790 21 26 24 29 322 NXW1400 1912 440 1824 21 25 24 29 322 22 10 PERCENTAGE DISTRIBUTION OF WEIGHTS ON SUPPORTS VERSION SILENCED MODE WITH TOTAL REC OVERY T ALL SIZE EMPTY PERC ENTAGE WEIGHT DISTRIBUTION SUPPORTS MODEL CENTRE OF GRAVITY AVX Weight Xg Yg A B D NXW0500 980 404 1207 27 28 22 2396 312 NXW0550 985 405 1204 27 28 22 23 312 NXW0600 1104 410 1259 26 27 23 24 651 NXW0650 1112 395 1233 27 27 23 23 651 NXW0700 1166
67. e heat exchanger NB The filter protects only the exchang ers in case of particularly dirty water we recommend an extemal filter to protect the pumps Drain valve versons with wateraccumulator or pump Of the automatic type assembled on the upper part of the hydraulic system it releases any air bubbles that may be present in the system Expansion tank 25 litres standard in the version with pump With nitrogen pre load membrane In the version is positioned on the evaporator while in the version H is positioned on the heat exchanger that works as evapo ratorin cooling mode SAFETY AND CONTROL COMPONENTS Low pressure tansducer Allows displaying on the microproc essor board display the value of the compressor s suction pressure one circuit on the low pressure side of the cooling circuit High pressure transducer Allows displaying on the microproc essor board display the value of the compressors delivery pressure one per circuit On the high pressure side of the cooling circuit High pressure switch Factory calibrated it is placed on the high pressure side of the cooling circuit it shuts down compressoroperation in the case of abnormal operating pressure Cooling circuit safety valves HP Calibrated at 45 bar HP they cut in relieving the overpressure in the case of abnormal operating pressures Thermomagnetic switches to protect the compressors 4 4 ELECTRICALCOMPONENTS Electrical pa
68. e national lawsin force in the country of installation 19 POSMONING The machine is delivered from the fac tory wrapped in estincoil Before moving the unit checkthe lifting capacity ofthe machines used Once the packaging hasbeen re moved the unit must be handled by qualified personnel with the suitable equipment To transport the machine use eithera forklift orlifting belts see figure The holesin the base to be used for lifting are indicated with yellow ad hesives showing a black amow The blades not included which are adequately scaled must protrude from the base unit fora sufficient length so that the lifting trapscan be tautened upwards without them encountering any interference Make sure thatthe strapshave been approved to support the weight of the unit be careful that they a properly fixed to the upper frame and to the lifting blades the safety closure must ensure that the 19 1 MINIMUM TECHNICAL SPACES mm ENS straps do not work loose of their housing The hooking point of the lifting frame must be on the vertical of the centre of gravity see trans port figure Inorderto avoid damaging the unit with the cables insert protection elements between them and the machine It isabsolutely forbidden to stand beneath the unit Take into account that when the chiller is working vibrations may be generated it istherefore advisable to install anti vibration supports AVX accessories fittin
69. efrigerant in case of extraordinary maintenance Solenoid valve The valve closes when the compressor tums off preventing the flow of refriger ant gastowardsthe evaporator 42 FRAME Load bearing structure realised in suit ably thick heat galvanized steel sheets itis painted with polyester dust to guarantee resistance to atmospheric agents RAL 9002 SOUND PROTECTION COVERING Only silenced versions It is comprised of panelsin suitably thick galvanized sheet metal and intemally finished with sound proofing matenal Allows the sound power level emitted from the unit to be reduced by 6 db A 4 3 HYDRAULIC COMPONENTS switch installed on the versions with a pump Its job isto make sure that there is water circulation in the evaporator If this is not the case it shuts down the unit NOTE In the heat pump vesion there isa second flow switch condenser side Circulation pump Condenser Evaporator Depending on the characteristics of the pump chosen it offersa useful head to overcome the pressure drops in the system There is also the possibility to have a reserve pump The reserve pump ismanaged by the electronic card Weter filter versions standard NOTINCLUDED versions with a pumps INCLUDED Allows you to block and eliminate any impurities in the hydraulic circ uits Inside it hasa filtering mesh with holes not greaterthan one millimetre It is indispensable to avoid serious damage to the plat
70. eries at the request of Aermec customersorlegitimate owners and in ITALY only The start up must be previously agreed on the basis of the system implementation times Before the intervention of the AERMEC After Sales Service all the operations electrical and hydraulic hook ups loading and breatherfrom the system must be completed Before starting the unit make sure that Allthe safety conditions have been respected The unit hasbeen properly fixed to the support base The minimum technical spaces have been observed Waterconnections have been performed respecting the input and output The hydraulic system hasbeen loaded and vented The hydraulic circuit tapsare open The electrical wirings have been properly carried out The voltage is within a tolerance of 10 ofthe unit rated voltage The earthing hasbeen carried out correctly Tightening of all electrical and hydraulic connections have been well carried out 242 HRSTCOMMISSIONING OF THE MACHINE Before activating the unit Close the electric panel lid Position the door block disconnecting switch of the machine on ON tuming the handle down fig 3 The display on fig 4 indicates that the unit is ready for operation For more information see the USER S MANUAL 24 3 SEASON CHANGEOVER Forthe season changeover see the users manual Fig 3 Display on on 64 INXWPY 1004 4438805 03 WARNING The first start up hasto be camed out with the
71. es 2 1 2 3 Total Recovery plates 2 1 2 3 Outlet evaporator 44 INXWPY 1004 4438805_03 NXW 1000 1250 1400 VERSION TOTAL REC OVERY T HEHE Model U M 1000 1250 1400 A 600 600 600 B mm 979 979 979 C 865 865 865 M oc n LA B 4 Outlet condenser Inlet evaporator Er Outlet evaporator Inlet condenser A D Outlet total recovery t 9 ua uA pour Inlet total recovery 9 C POSITION Model 1000 1250 1400 A 1775 B 300 C 3044 D 1818 E 367 F 216 G m 568 H 1165 l 568 L 260 M 216 N 800 HYDRAULIC CONNECTION VIC TAULIC IN OUT Evaporator plates 3 Condenser plates 0 3 Total Recovery plates 3 INXWPY 1004 4438805 03 45 46 NXW version conderserless E Model 0500 0550 600 650 700 750 A C 524 DI te A T P x ios VANS AVX 27 E Model U M 0500 0550 0600 0650 0700 0750 Eu a 300 300 300 300 300 300 ae 77 d B nm 1190 11
72. essure transducer TLP bar 1 6 16 16 16 16 16 800 900 1000 1250 1400 Pressure switch high press HP bar 40 40 40 40 40 High pressure transducer THP bar 39 39 39 39 39 Low pressure transducer TLP bar 1 6 16 16 16 16 COOLING CIRCUITSAFEIY 500 550 600 650 700 750 High pressure valve bar 45 45 45 45 45 45 COOLING CIRCUITSAFEIY 800 900 1000 1250 1400 High pressure valve bar 45 45 45 45 45 INXWPY 1004 4438805 03 35 17 CAPACITY CONTROL Capacity step control cold Cooling capacity Levels of power Versions 1 2 3 42 NXWO0500 39 55 100 NXWO0550 36 70 100 NXW0600 28 53 78 100 NXW0650 28 53 78 100 NXW0700 28 53 78 100 NXW0750 28 53 78 100 NXW0800 28 53 78 100 NXW0900 28 53 78 100 NXW1000 28 53 78 100 NXW1250 28 53 78 100 NXW1400 28 53 78 100 Input power Levels of power Versions 1 2 3 4 NXW0500 33 49 100 NXW0550 30 64 100 NXW0600 22 47 72 100 NXW0650 22 47 72 100 NXW0700 22 47 72 100 NXW0750 22 47 72 100 NXW0800 22 47 72 100 NXW0900 22 47 72 100 NXW1000 22 47 72 100 NXW1250 22 47 72 100 NXW1400 22 47 72 100 Performance valuesreferto the following conditions Evaporator inlet water temperature 7 C condenser inlet water temperature 35 36 INXWPY 1004 4438805 03 Capacity step control hot
73. ficate no 06 270 Q T3664 Rev 5 issued by the notified body no 1131 CEC via Pisacane 46 Legnano MI Italy The person authorised to compile the technical sheet is Massimiliano Sfra gara 37040 Bevilacqua VR Italy Via Roma 996 Bevilacqua 20 05 2010 Marketing Director Signature 42 Standards and directives to be followed in the design and manufacture of the unit Safety Machine Directive 2006 42 EC low voltage directve LVD 2006 95 EC Electromagnetic compatibility directive EMC 2004 108 EC Pressure containers directive PED 97 23 C E EN 378 UNI EN 14276 Hectrical part EN 60204 1 Protection rating IP20 Acoustic part SOUND POWER EN ISO 9614 2 SO UND PRESSURE EN ISO 3744 Certifications Eurovent Refrigerant GAS R410A This unit contains fluorinated greenhouse gases covered by the Kyoto Protocol Main tenance and disposal opera tions must be only carried out by qualified staff B 0 0 Ce TEC HNICAL PLATE fig 1 technical plate 6 INXWPY 1004 4438805 03 1 GENERALWARNINGS NXW AERMEC is built according to recognised technical standards and safety regulations They have been designed forairconditioning and hot water production and must be used for this purpose in accordance with their performance characteristic s The com pany shall not be contractually ornon contractually liable forany damage to people animals orobjects
74. g them to the holesin the base according to the assembly diagram Fasen the unit by checking careful ly that its on the same level check that easy accessto the hydraulic and electric part isallowed 71000 mm d 38 INXWPY 1004 4438805 03 ATTENTION Use all of the available holesfor lifting The blades not included 20 DIMENSIONAL TABLES NXW 0500 0700 SIANDARD VERSION Model 0500 0550 0600 0650 0700 300 300 300 300 300 1190 1190 1190 1190 1190 35 35 35 35 35 70 70 70 70 70 op mm VO w gt VERSION HEAT PUMP WITH WATER SIDE INVERSION ONES INLET EVAPORATOR INLETC ONDENSER EIE IDECYCIE INVERSION COOLING MODE OUTLET EVAPORATOR INLET CONDENSER POSITION Model U M 0500 0550 0600 0650 0700 800 800 800 800 800 1035 1035 1035 1035 1035 1790 1790 1790 1790 1790 1835 1835 1835 1
75. he PGD1 fornormal control leroperation and is necessary only when initially programming the basic parameters Microprocessor Multilingual menu Phase sequence control ndependent control of individual compressors Ammetric transformer Cumulative failure block signalling Alam log function Daily weekly programming nlet outlet water temperature display Alam display Full proportional regulation of the output watertemperature Programmable timerfunction nterfaceability with the Modbus protocol accessory Control and management of pump srotation Compressorrotation control Analogue input from 4 to 20 mA Always Working function In case of critical conditionsthe machine doesnot arrest but isable to self adjust itself and provide maximum output powerin those conditions Selfadapting operating differen tial Switching Histeresys to ensure correct compressor operation at all times even in plants with a low wa 10 INXWPY 1004 4438805 03 ter content or insufficient flow rates This system reducesthe compressor wear The PDC Pull Down Control sys tem to prevent the activation of the powersteps when the water temperature isapproaching the set point quickly It optimisesthe op eration of the machine both when running normally or when there are load variations thereby assuring top machine efficiency in all situa tions Forfurther information referto the user man
76. ibration must be regulated using the maximum level difference H of the user see diagram by using the following formula p calibration bar H m 10 2 0 Forexample if level difference H is 3 equalto 20m the calibration value of the vessel will be 2 3 bar If the calibration value obtained from thecalcu lation islessthan 1 5 bar i e for H lt 12 25 keep standard calibration 30 INXWPY 1004 4438805 03 1 255 H 10 2 0 3 gt Ptar gt 1 5bar Ptar lt I ll o 3 Ptar 1 5 bar H min 2 KEY 1 Checkthat highest installation does not exceed a height difference of 55 2 Ensure that lowest installation can withstand global pressure in that position metres NXW Hydraulic height Hm 30 25 20 15 21225 Calibration of the expansion vessel bar 3 2 2 8 2 3 1 8 1 5 Watercontent reference value 9 2 174 2 646 3 118 3590 3852 Watercontent reference value I 978 1190 1404 1616 1732 13 GLYCOL The cooling capacity and input power correction factors make al lowance forthe presence of glycol and the different evaporation tem perature The pressure drop correction factor already takes into account the different flow rate deriving from the application of the waterflow rate correction factor The correction factor of the water flo
77. l h 16368 17728 21654 24488 27549 32461 37373 42548 47724 52189 56654 Evaporatorpressure drop kPa 14 16 15 19 19 23 30 19 15 17 19 ENERGY INDEXES EER WIW 457 456 4 65 4 67 4 65 4 66 4 67 4 61 4 56 4 58 4 59 ESEER Sete WW 5 73 5 71 5 76 5 85 5 76 5 79 5 64 5 72 5 85 5 77 5 80 COP H HL W W 445 446 446 4 47 4 47 4 46 4 45 4 45 4 45 4 45 4 45 ELECTRICAL DATA 400V 3 50Hz Input current cooling A 49 52 60 65 87 95 104 122 140 144 147 Input current heating m A 54 57 66 72 94 105 115 135 154 160 165 Maximum cument A 75 80 96 107 122 146 169 193 217 231 248 Starting current A 240 245 227 238 289 319 341 398 422 490 504 CHARGE This data is subjectto variations Refrigerant R410A C 1 C2 kg 6 5 6 5 6 5 6 5 8 5 8 5 85 8 5 10 0 10 0 11 0 11 0 13 0 13 0 18 0 18 0 27 0 27 0 27 0 27 0 29 0 29 0 Oil Circuit C1 C 2 um 6 6 3 6 6 6 3 6 6 6 6 6 6 6 6 6 72 72 13 4 7 2 13 4 13 4 13 4 13 4 13 4 13 4 13 9 13 9 13 9 13 9 COMPRESSOR SCROLL N of compressors circuits H HL 3 2 4 2 EVAPORATOR plates Quantity n 1 Water content H HL 9 5 9 5 12 3 12 3 14 8 16 7 16 7 30 2 45 5 45 5 49 9 Victaulic waterconnections 0 27 2 2 1 2 2 1 2 20 2 27 2 21 2 24 2 3 3 3 3 CONDENSER plates Quantity n 1 Water content H HL 9 5 9 5 12 3 123 14 8 16 7 16 7 30 2 45 5 45 5 49 9 Victaulic waterconnections 0 21 2 2 1 2 2 1 2 12 2 272 21 2 27 2 3 3 3 3 HEAT RECOVERY
78. machine in the startup phase This accessory can only be applied in the factory ALL DRE501 DRE551 DRE601 DRE651 DRE701 DRE751 DRE801 DRE901 DRE1001 DRE1251 DRE1401 INXWPY 1004 4438805 03 6 TECHNICALDATA 61 STANDARD VERSION STANDARD L SILENCED SIZE 0500 0550 0600 0650 0700 0800 0900 1000 1250 1400 Mod NXW vers UM 0500 0550 0600 0650 0700 0750 0800 0900 1000 1250 1 00 Cooling capacity 1 kW 112 121 149 167 189 223 258 292 326 355 385 Totalinput power kW 222 23 9 29 5 32 9 37 3 43 6 50 4 57 8 64 5 70 3 76 1 Evaporatorwater flow rate l h 19264 20812 25628 28758 32458 38392 44325 50188 56050 61097 66142 Evaporatorpressure drop vs kPa 30 35 32 40 43 47 49 55 35 36 36 Condenser waterflow rate Vh 22892 24718 30449 34141 38548 45511 52565 59629 66594 72590 78585 Pressure drop at condenser kPa 25 29 29 37 37 45 60 38 29 34 36 Heating capacity 2 kW 119 129 161 181 205 242 279 318 356 388 419 Totalinput power kW 26 5 28 6 35 7 40 0 45 5 53 5 61 8 70 4 79 2 86 2 93 2 Condenserwaterflow rate l h 20468 22188 27692 31215 35195 41595 47995 54638 61281
79. mps 1300 389 1194 29 27 23 22 NXW0750HL HL 1121 403 1105 24 24 26 26 314 NXW0750HL HL 1 pump 1316 397 1277 27 26 24 23 NXW0750HL HL 2pumps 1376 395 1321 26 25 25 24 ded NXW0750HL HL 3pumps 1437 394 1361 25 24 26 25 NXW0750HL HL 4pumps 1477 393 1386 27 27 23 23 NOTE The numberof pumpsrefersto the quantity physically present on the machine The weight difference between the typesof configurator pumps low head and high head isnegligible A NOTE Version with desuperheater D use the same postionsforantivibration pad fixing asforthe AVX of the standard version desuperheateradditional weight 23 kg forall models from 500 to 800 size 29 kg for all models from 900 to 1400 size INXWPY 1004 4438805 03 57 22 8 PERCENTAGE DISTRIBUTION OF WEIGHTS ON SUPPORTS VERSION HL SIZES FROM 0800 TO 1400 PERCENTAGE WEIGHTDISTRIBUTION SUPPORTS MODEL CENTRE OF GRAVITY AVX Weight Xg Yg A B D NXWO800HL HL 1240 407 1228 24 25 25 26 314 NXWO800HL HL 1 pump 1409 402 1291 28 29 21 22 NXW0800HL HL 2 pumps 1470 400 1331 28 28 22 22 ee NXWO800HL HL 3 pumps 1530 399 1368 27 27 23 23 NXWO800HL HL 4pumps 1591 397 1403 27 27 23 23 NXWO900HL HL 1473 408 1239 2496 2596 2596 2696 315 NXWOSO
80. nel Contains the power section and the management of the controls and safety devices Doorblock disconnecting switch It is possible to access the electrical panel by disconnecting the voltage then using the opening lever of the panel itself This lever can be blocked with one or more padlocks during maintenance in orderto prevent the machine being powered up acciden tally Contol keypad Provides full control functions NB Fora more detailed description refer to the user manual 4 5 ELECTRONIC REGULATION Electronic regulation on the NXW chillers consists of a control board and a control panel with display On each board transducers loadsand alarmsare con nected The programme and parameter presets are stored permanently in the controller s FLASH memory to ensure thatthey are kept in memory even when the system is not powered without the need foran auxiliary battery The connection to the serial supervision assistance line in accordance with the RS485 standard is performed through the serial boards ACCESSORY RS485P1 and the communication protocol The terminal which isalwayscontrol led by microprocessor is equipped with a display a keypad and a set of LEDs and isused for programming check parameters Set Points differ ential band alarm threshold and for fundamental user operations ON OFF display of controlled values The terminal doesnot need to be con INXWPY 1004 4438805 03 9 nected to t
81. nput and output of the condens erequal to 5 C KEY Cf Cooling capacity correction coefficient Ca Input powerconection coefficient 85 FORATDIFFERENTFROM THE RATED VALUE For At different from 5 C to the evaporator referto Tab 8 5 1 for the cooling capacity and input powercorrection factors 8 6 FOULING FACTORS The performance levels indicat ed in table 8 6 1 refer to condi tions with clean tubes with a fouling factor 1 For values dif ferent from the fouling factor multiply the values in the per formance table by the reported coefficients 20 INXWPY 1004 4438805 03 COOLING CAPACITY 14 13 25 12 r ee 50 10 Cf 0 9 i 81 5 07 0 6 i o9 1 E 05 6 8 5 1 i 8 7 6 5 4 3 24 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Evaporator output water temperature At 5 C INPUTPOWER IN COOLING MODE 1 5 1 22 H 55 14 1 LLL ee lee 1 3 1 i 45 41 1 2 s 40 2 Ca i ie i 35 58 10 4 r 1 1 SSE ere ot 0 9 25 8 0 8 LI RES 1 1 0 7 1
82. r 8 1 2 LI 10 0 9 0 8 0 7 0 6 8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 M 15 16 17 18 Evaporator output water temperature At 5 C Condenser Output water temperature At 5 C 14 equalto 5 C 13 58 5 1 o 1 4 55 te 5 2 Cooling capacity 11 1 50 conection coeffi i 45 P cient 59 Ca i 402 Input powercorec 09 tion coefficient 35 5 0 8 1 30 0 7 88 FORATDIFFERENT FROM THE RATED 06 1 VALUE 8 7 6 5 4 3 2 1 O 1 2 3 4 5 6 7 8 9 1011 12 13 14 15 16 17 18 Evaporator output For At different from 5 C vaerempemue Ups fovent to the evaporator refer to Tab 8 8 1 for the cooling capacity and input power correction factors 8 8 1 CORRECTION FACTORS FOR ATDIFFERENT T SRD RS FROM THE CHILLER RATED VALUE iSS Evaporator At differentto nominal 3 5 8 10 The properties provided on factor cooling capacity 0 99 1 1 02 1 03 table 8 9 1 refer to the con Correction factor input power 0 99 1 1 01 1
83. snec essary TO READ CAREFULLY THE INSTRUCTIO NS AND TO PERFORM THE SAFETY CHECKS TO AVOID ANY RISKS All the personnel in charge must be aware ofthe operations and the risks that ma y arise when all the unit installation operations begin 2 PRODUCT IDENTIHCATION NXW are identified by the following PACKAGING LABEL that includesthe product identifica tion data TECHNICAL PLATE Placed on the right strut side see fig 1 NB If the identification plate orany other means to identify the product is tam pered with removed or missing instal lation and maintenance operations are hampered 3 DESCRIPTION AND CHOICE OF THE UNIT The NXW Heat pumps and reversible water water FOR INDOOR INSTALLATION have been designed to completely sat isfy any plant and application needs thanks to a wide range of models con figurations and accessories For years Aermec has been attentive to the energy efficiency issue and hasnow designed the NXW units with the aim of ensuring high efficiency levels with both full and partial loads The results are an EER gt 5 05 and COP gt 4 45 Class A Eu rovent The NXW unit is commissioned and delivered completely charged with R410A refrigerant and oil on site it will be necessary only to provide the hydrau and electric connections while the MOTO CONDENSER lt lt gt gt versions are delivered only with a watertight charge 3 L AVAILABLE MODELS Standard heat pump
84. t contain stones sand rust slag orany foreign bodies that may damage the system It is necessary to make a by passto the unit to be able to camy outthe cleaning ofthe pipes with out having to disconnectthe machine The connection pipes must be properly supported so asnotto burden the unit with their weight On the water circuit it is advisable to install the following instruments if not foreseen in the version you have 1 Two pressure gauges of suitable size input and output section 2 Two anti vibration couplings input and output section 3 Two shut off valves normal input sec tion output section calibrating valve Two thermometers input and out put section Expansion tanks Pump Accumulation tank Flow switch Safety valve 10 Charging unit 11 Water filter 11 The filter protects only the exchang ers in case of particularly dirty water we recommend an extemal filterto protect the pumps A Compulsory hydraulic circuit com pnents in case of an NXW provided without the hydronic kit evaporator side condenser side Atthe inlet or each plate heat exchang erthe installation of a flow switch not included is compulsory atthe penalty of invalidating the waranty Installation of the mechanical filter is compulsory at the inlet of each plate heat ex changerat the penalty of invalidating the warranty The filter must have filter ing holes with a diameter not greater
85. th mm 800 800 800 800 800 800 800 800 800 800 800 Depth mm 1790 1790 1790 1790 1790 2090 2354 2354 2354 2354 2354 Weight kg 578 582 682 690 727 882 989 1180 1417 1461 1539 Height mm 1885 1885 1885 1885 1885 1885 1885 1885 1885 1885 1885 Width mm 800 800 800 800 800 800 800 800 800 800 800 Depth 5 mm 2090 2090 2090 2090 2090 2090 2354 2354 2354 2354 2354 Weight kg 750 755 854 863 900 1054 1187 1378 1615 1659 1737 Height mm 1775 1775 1775 1775 1775 1775 1775 1850 1850 1850 1850 Width PUMPS mm 800 800 800 800 800 800 800 800 800 800 800 Depth mm 3020 3020 3020 3020 3020 3020 3420 3420 3420 3420 3420 Height mm 1885 1885 1885 1885 1885 1885 1885 1885 1885 1885 1885 Width PUMPSL mm 800 800 800 800 800 800 800 800 800 800 800 Depth mm 3020 3020 3020 3020 3020 3020 3420 3420 3420 3420 3420 Performance values referto cooling mode 1 SOUND POWER Desuperheater Watertemperature to desuperheater 45 50 C Watertemperature condenser 30 C 35 C Watertemperature evaporator 12 C 7 C 14 INXWPY 1004 4438805 03 determinesthe value of the sound power based on the meas urementstaken in accordance with standard 9614 2 with respectto the certific ation requirement Eurovent 2 SOUND PRESSURE Sound pressure in free field on reflecting plane direction fact Q 2 at 10 metres distance from the extemal surface of
86. than one millimetre and must be kept clean therefore the cleaning must be verified after installation of the unit and the condition must be checked periodi cally It is necessary that the water flow rate to the chiller unit complies with the values reported in the performance tables The systems loaded with anti freeze or specific regulations need the water Example of NXW Version H HYDRAULIC CIRCUIT KEY PUMP VERSION 1 Condenser Evaporator 3 Flow switch 4 Pumps 5 Airbleed valve 6 Waterdischarge 7 Filter 8 Expansion tank The Victaulic joints and the soldering studs for the condenser and evaporator are provided 50 INXWPY 1004 4438805 03 backflow system Special supply recovery water is carried out with appropriate treatment systems 21 2 SYSIEM LOAD Before starting the load check that the system drain tap isclosed Open allthe drain valves of the system and of the related terminals Open the shut off devices of the system Start the filling by slowly opening the water system load cock placed outside the machine When waterbeginsto flow from the terminal vent valves close them and continue loading up to read onthe gauge the value of 1 5 bar The system is loaded ata pressure between 1 and 2 bar It is advisable to repeat this operation once the machine has worked for some hours and to periodically check the system pressure restoring if it drops below 1bar
87. the motor makesthe equiped with an extemal PGD1 reduction of input current possible ELECTRONIC REGULATION DIAGRAM C H CIRCUIT1 t CIRCUIT2 INXWPY 1004 4438805_03 11 12 COMPATIBILITY OF ACCESSORIES NXW 0500 0550 0600 0650 0700 0750 0800 0900 1000 1250 1400 AER485P1 Through this accessory it is possible to connect the unit with BMS supervision systems with electrical standard RS 485 and MODBUS type protocol ALL PGD1 a OECONTOLTERMINALPGDIL AVX Rubber antivibration support Select the model using the compatibility table 319 319 301 301 301 303 310 314 316 316 315 1 PUMP 320 320 320 320 320 312 651 665 653 654 654 2 PUMPS 320 320 309 309 309 312 651 665 653 654 654 3 PUMPS 320 320 309 309 309 312 651 665 653 654 654 4 PUMPS 309 309 310 310 310 312 651 665 653 654 654 H 319 319 301 301 302 310 310 314 316 315 317 H 1 PUMP 320 320 320 309 309 651 651 665 654 654 654 H 2 PUMPS 320 320 303 309 311 651 651 665 654 654 654 H 3 PUMPS 309 309 303 311 312 651 651 665 654 654 654 H 4 PUMPS 309 309 312 312 312 651 651 665 654 654 654 L 309 309 310 303 303 310 314 314 31
88. the operating 45 limits is relative to all At on the evaporatorand on the condenser of 5 40 Inlet Atc Output condenser min 5 15 Inlet te output difference Condenseroutlet watertemperature Evaporator 10 5 0 5 10 15 20 3 Evaporator outlet watertemperature max 10 Tab 7 1 1 Condenserless 7 2 OPERATING LIMITVERSION E CONDENSERLESS Reference should be made to the diagram below forthe operating limits see table 7 1 1 Operation with glycol Standard operation Condensing temperature 10 5 0 5 10 15 20 Eva porator outlet watertemperature Tab 7 2 1 with standard mechanical thermostatic valve up to 4 C Y Low watertemperature mechanical thermostatic valve down to 6 C X Electronic thermostatic valve also forlow watertemperature down to 6 C 83 DESIGN DATA HIGH PRESSURE LOW PRESSURE DIR 97 23 EC SIDE SIDE Maximum allowable pressure bar 45 30 Maximum temperature allowable 120 51 Minimum temperature allowable 30 30 18 INXWPY 1004 4438805 03 8 CORRECTIVE FACTOR 8 1 HEATING CAPACITY AND INPUT POWER HEAT PUMP VERSIONS IN HEATING MODE The heating capacity yielded and the input electrical capac ity in conditions other than rated conditions are obtained by mul tiplying the rated values Pt Pa by the respective
89. ty n 1 Water content 7 0 7 0 9 5 9 5 10 4 12 3 14 8 16 7 30 2 32 9 37 4 Victaulic fo waterconnections 2 1 2 27 2 27 2 27 2 20 2 20 2 27 2 27 2 3 3 3 SOUND DATA Sound power 1 E dB A 78 79 79 80 82 86 88 88 88 90 90 Sound pressure 2 46 47 47 48 50 54 56 56 56 58 58 Sound power 1 72 73 73 74 76 80 82 82 82 84 84 Sound pressure 2 peek AM 40 41 41 42 44 48 50 50 50 52 52 DIMENSIONS Height mm 1835 1835 1835 1835 1835 1775 1775 1775 1820 1820 1820 Width E mm 800 800 800 800 800 800 800 800 800 800 800 Depth mm 1790 1790 1790 1790 1790 2090 2354 2354 2354 2354 2354 Height mm 1885 1885 1885 1885 1885 1885 1885 1885 1885 1885 1885 Width E LE mm 800 800 800 800 800 800 800 800 800 800 800 Depth mm 2090 2090 2090 2090 2090 2090 2354 2354 2354 2354 2354 Reference data 1 SOUND POWER processed watertemperature 7 C Aemec deteminesthe value of the sound powerbased Condensing temperature 45 C on the measurements taken in accordance with standard At 5 C 9614 2 with respect to the certification requirement Eurov ent 2 SOUND PRESSURE Sound pressure in free field on reflecting plane direction fact Q 2 at 10 metres distance from the extemal surface ofthe unit in accordance with sandard ISO 3744 INXWPY 1004 4438805 03 17 7 OPERATING LIMITS 7 1 OPERATING LIMITS Standard SIANDARD VERSION 50 Reference should be made to the 55 diagram below forthe operating limits see table 7 1 1 504 The diagram for
90. ual Example of NXW version Et z HYDRAULIC CIRCUIT KEY Condenser Evaporator plate type exchangers Flow switch Filter Pump Expansion tank NB The Victaulic joints and the soldering studsforthe condenserand evaporator are provided 5 ACCESSORIES remote control terminal PGD1 It can only be installed when the remote terminals provide the same machine is being made and must 5 1 ELECTRIC REGULATION functions as the on board terminals therefore be specified when the ACCESSORIES keyboard controlsand display orderis placed PGD1 terminalscan be installed at DRE It permits the reduction of the AER485P1 Through this accessory it distancesof up to 1 km from the starting current needed by the is possible to connect the unit with machine up to 50 meters with tele machine in the start up phase This BMS supervision systems with electrical phone cable AWG 24 for distances accessory can only be applied in the standard RS 485 and MODBUS type of over 50 metres ensure that the factory protocol 2nd extension card ispowered by a NOTE disclosure must be provided for voltage between 21and 30V dc 5 3 GENERALACCESSORIES compressorNo 1 AVX spring anti vibration supports PGDI In addition to the control 5 2 ELEC TRICALACCESSORIES terminal on board the machine Curent phase advancer Parallel itself NXW machinescan also be connection with
91. w rate iscalculated so asto maintain the same At that would be used in the absence of glycol NB An example is given to make it easier to read the following graph By using the diagram below it possible to establish the percentage of glycol necessary this percentage can be calculated taking into account one of the following factors Onthe basisof the fluid considered waterorair it will be necessary to en terthe graph from the right or left side from the intersection of the outside air temperature or processed water temperature straight lines and the rela tive curves a point is obtained through which the vertical line that will identify both the percentage of glycol and the relative correction coefficients will ha ve to pass 13 1 HOWTO READ THE GLYCOL CURVES The curves shown in the figure summa rise a notable quantity of data each of which is represented by a specific curve In orderto use these curves correctly it is necessary to make some initial considerations Ifyou want to calculate the per centage of glycol on the basis of the outside airtemperature you must enter from the left hand axis and once you have intersected the curve trace a vertical line which in tum will intercept all the other curves the points obtained from the upper curves represent the coefficients for the correction of the cooling capacity and input power forthe flow ratesand the pressure drops remember that these coef fic ients
92. with Three phase power check the correct connection of the phases WARNING Itis forbidden to use water pipes for the earthing of the machine 23 1 RECOMMENDED SECTION OF ELECTRIC CABLES The cable sectionsindicated in the ta ble are advised fora maximum length of 50m ELECTRICAL DATA VERSION WTHOUTPUMPING GROUP ALL VERSIONS MAX RECOMMENDED 400 3 400V 3 400V 3 UM UM UM UM LENGTH NXW 0500 NXW 0550 NXW 0600 NXW 0650 NXW 0700 NXW 0750 NXW 0800 NXW 0900 NXW 1000 NXW 1250 NXW 1400 KEY Sec A Powersupply Sec B Controls and safety connection Earth IL Main switch INXWPY 1004 4438805 03 61 ELECTRICAL DATA VERSION WITH PUMPING GROUP ALL VERSIONS CONDE euin SECTB NXW NXW ET NXW 0800 NXW 0900 NXW 1000 NXW 1250 NXW 1400 uM UM UM UM ESLIE NEM 19 NXW 0600 NXW 0650 NXW 0700 NXW 0750 ik 35 200 50 250 50 29 s 250 KEY Sec A Powersupply Sec B Controls and safety connection Earth IL Main switch 62 INXWPY 1004 4438805 03 For higherlengthsor differ enttypesof cable installa tion it will be the DESIGNERS responsibility to carefully measure the line main switch the supply powerline and the earthing protection connection and the work ing connection cables the length thetype of cable Absorption ofthe unit an
93. with water side cycle inversion Heatpump H heat pump with gas side cycle inversion Extended operating limits temperature of condenseroutput water up to 55 temperature of evaporatoroutput water down to 8 AVAILABLE VERSIONS Standard Silenced L Reduced sound emission thanks to total compressor casing ofthe machine with galvanised sheet metal panels of a suitable thic k ness and with good sound ab sorbing capacity Heatrecovery units Without recovery units Desuperheater D They are equipped with a partial plate heat recovery unit installed in series with the condenser Total recovery T They are equipped with a plate heat exchanger installed in parallel to the condenserfortotal recovery ofthe dissipated heat Condenser Standard CondenserlessE 3 3 AVAILABLE VERSIONS NXW range chillers are available in 11 sizes By combining the wide variety of available options it is possible to configure each model in the NXW range in such a way asto meet the most varied system requirements To make installation easer the machine can be provided with an hydronic kit evaporator and hydronic kit condenser optimising spaces times and installation costs The following configurator shows the methods by which the commer Cial code of 15 fieldsthat make it up representing the options available is compiled INXWPY 1004 4438805 03 7 34 DESCRIPTION AND CHOICE OF THE UNIT
94. y to the pressure drops 50 1000 1250 1400 with a variation in average water 210 temperature a 0 0 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 Water flow l h 22 INXWPY 1004 4438805_03 Average watertemperature C 5 10 15 20 30 40 50 Correction factor 1 22 1 10 108 1 06 104 1 02 1 00 Tab 8 13 1 8 14 HEATING CAPACTIY WITH TOTAL RECOVERY The heating capacity yielded and the input electrical capacity in conditions otherthan rated condi tions are obtained by multiplying the rated values Pt Pa by the respective correction coefficients Cr Ca Diagram Tab 8 14 1 allows you to obtain the correction coef ficients corresponding to each curve the temperature of the hot processed water referred to is reported assuming a difference in water temperature between the input and output of the condenser equal to 5 C KEY Cr Heating capacity conection coefficient Input powerconection coefficient 8 15 FORATDIFFERENT FROM THE RATED VALUE For At different from 5 C to the evaporator refer to Tab 8 15 1 for the cooling capacity and input power comection factors 8 16 FOULING FACTORS The performance levels indicated in table 8 16 1 refer to conditions with clean tubes with a fouling factor 1 For values different from the fouling factor

Heat pump unit and compressor-evaporator unit Aermec NXW

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