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NSB - Aermec

1. 7 4 NSB 1251E 2202E LOW NOISE HIGH EFFICIENCY EXECUTION AND IN FREECOOLING MODE COOLING 1251E 1401E 1601E 1801E 2101E 2401E 1402E 1602E 1802E 2002E 2202E Cooling capacity W 243 282 322 372 415 471 257 295 340 389 439 Total input power W 93 105 117 148 161 183 105 121 136 156 167 Evaporator water flow rate h 41780 48420 55450 63990 71400 81080 44280 50660 58490 66950 75420 Evaporator pressure drop Pa 38 26 33 35 26 31 22 27 35 40 28 FREECOOLING Cooling capacity W 288 283 297 391 466 490 249 288 379 420 476 Total input power W 12 12 12 16 20 20 12 12 16 20 20 Total pressure drop Pa 111 118 105 144 124 167 90 96 132 124 143 EFFICIENCY INDEX EER E W W 2 60 2 68 2 78 2 51 2 58 2 58 2 45 2 43 2 51 2 50 2 62 FC W W 22 33 2362 2474 24 45 2332 2448 20 74 2399 23 68 2100 23 79 ESEER E 3 07 3 08 313 3 08 3 05 311 3 08 31 3 09 311 311 ELECTRICAL DATA Power supply V 400V 3 50Hz S E A 158 176 194 238 264 300 177 203 222 255 286 FC A 24 24 24 32 40 40 24 24 32 40 40 Maximum current FLA A 230 293 338 340 389 439 264 292 333 376 418 Peak current LRA A 321 443 472 474 597 661 214 256 292 332 346 COMPRESSORS Type twin screw Number n 1 1 1 1 1 1 2 2 2 2 2 Number per circuit n n 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 1 2 1 2 1 2 1 PARTIAL LOAD vE a Pf 58 100 53 100 53 100 53 100 53 100 53 100
2. 343 2002 1 le GG 3 ZI Y la o rae R 5350 of c d oH oh IH k 41 42 22 2 TWO MODULE ATTACHMENTS POSITION NSB FREECOOLING 3002 3202 800 6760 NSB FREECOOLING 3402 I EO H LL o LT I 1480 890 L 4370 TT ANO O O O A FT B o am 5 Losy al n il S 6 OV SE 1 E Spee SS eg j 350 397 3380 3380 800 407 7750 343 NSB FREECOOLING 3602 Ivie r TT R D OUT Vic s 1 350 NE 14 Hi HOH FA ii CABOS e iy cues cvv CUM 890 4370 IN Vio BF SB TT
3. 9 Fig 3 NSB VERSION power supply n Formed from SECTAmm SECTB mm Earth mm ILA 1251 FC 1 150 5 70 250 1401 FC 1 185 5 95 315 1601 FC 1 240 5 20 315 1801 FC 1 240 5 20 400 2101 FC 1 2x150 5 50 630 2401 FC 1 2x185 5 85 630 1402 FC 1 185 5 95 315 1602 FC 1 240 5 20 315 1802 FC 1 240 5 20 400 2002 FC 1 2x150 5 50 400 2202 FC 1 2x150 5 50 400 2352 FC 1 2x185 5 85 630 2502 FC 1 2x185 5 85 630 2652 FC 1 2x185 5 85 630 2802 FC 1 2x240 5 240 630 3002 FC 1 3x150 5 2x120 630 3202 FC 1 3x185 5 2x150 630 3402 FC 1 3x185 5 2x150 800 3602 FC 1 3x240 5 2x185 800 3902 FC 1 3x240 5 2x185 800 4202 FC 1 4x185 5 2x185 800 4502 FC 1 4x240 5 2x240 1000 4802 FC 1 4x240 5 2x300 1000 3202 3x185 5 2x150 630 5003 FC 2 1801 240 5 20 400 3402 3x185 5 2x150 800 5203 FC 2 1801 240 5 20 400 3602 3x240 5 2x185 800 5403 FC 2 1801 240 5 20 400 3602 3x240 5 2x185 800 5703 FC 2 2101 2x150 5 50 630 3602 3x240 5 2x185 800 6003 FC 2 2401 2x185 5 85 630 3902 3x240 5 2x185 800 6303 FC 2 2401 2x185 5 85 630 4202 4x185 5 3x185 800 6603 FC 2 2401 2x185 5 85 630 4502 4x240 5 240 1000 6903 FC 2 2401 2x185 5 85 630 4802 4x240 5 2x240 1000 7203 FC 2 2401 2x185 5 85 630 24 1 PREPARATION FOR COMMISSIONING ATTENTION Before carrying out the controls in dicated below make sure that the unit is disconnected from the power mains using the appropriate instru ments 24 11 Electrical contro
4. 343 43 44 22 3 THREE MODULE ATTACHMENTS POSITION NSB FREECOOLING 5003 WW rq IT a 1 NVI Fr H Ol n Os I B Y Hi OUT Vie 8 b i o s H a 8 de OUT Vib 5 L lg i fire ge XR 9 K pes E J s SA E 397 3380 41130 NSB FREECOOLING 5203 i n iJ T IN Vic Br 1 Ne TN i gt Hate OUT Vie 5 l 1 B Ero JH l a 8 ai ST ll 8 E Ji a J bac 880 4370 343 cst 343 NSB FREE
5. 4 390 4 FcGDpF e 1 30 1280 FcGQF 120 Hina FcGQ PAC 1 00 FcGPf PAC 0 390 FeGPa FcGPf D 5 10 15 20 85 30 35 40 45 50 55 Glicole E air temperature aj emperature of produced water t KEY FcGPF Coefficient factors of the cooling capacity FcGPa Coefficient factors of the input power FcGDpF a Coefficient factors for pressure drops evaporator av temp 3 5 C FcGDpF b Coefficient factors of pressure drops av temp 0 5 C FcGDpF c Coefficient factors of pressure drops av temp 5 5 C FcGDpF d Coefficient factors of pressure drops av temp 9 5 C FcGDpF e Coefficient factors of pressure drops av temp 475 C FCGQF FeGQC NOTE Coefficient factors of the flow rates evap average temperature 9 5 C Coefficient factors of flow rates condenser av temp 475 C Although the graph shows up to an external air temperature of 40 C unit ope rational limits must be considered ficients for cooling capacity and power absorption for flow rates and load los ses remember that these coefficients still need to be multiplied by the nominal value of the size examined whilst the lower axis recommends the
6. 550 o 1100 2050 1100 550 lo oj loj o lo O lo lo lo o lo lo o KEY oe gt 400 Electric box o jo o e o o 17 2 2 Two module 3002 3202 200 4370 sk 4370 8740 KEY 400 Electric box 17 2 4 Two module 3902 4202 9720 P s S EG n Be Be Ba 550 1100 2050 1100 1100 1100 2050 1100 550 4502 4802 T k o o 9 ko L Rz 54 kA Es do RZ RZ 54 400 5350 5350 i 2 KEY 400 Electric box 17 2 3 Three module 5003 550 2280 2090 2280 2090 2280 550 gt 2203 A Ns VA Ns o 400 1 3380 2 sk 4370 k 4370 J 800 2280 550 NY 4 2 s i 400 n 4370 E E 4370 y re 4370 13110 5403 5703 3602 2101 8003 360242401 5703 6003 550 ps 2170 1100 2170 fue 550 sso 1100 2050 1100 550 b To i e L b ER ES Ed n s ES sd RE k kA y 8740 6303 6603 550 d 2170 1100 3150 9720 e L 2 2 L 7 Y k k sa s z 6903 4502 2401 7203 4802 2401 6903 7208 550 1100 2050 1100 1100 1100 2050 1100 550 k d k 550 1100 2050 1100 550 Es je a te i je i ls to of hz pa pary 10700 KEY 400 Electric box 34 18 1 SAFETY WARNINGS e
7. O 730j 1460 POSITIONS OF HOLES FOR ANTI VIBRATION MOUNTS Three module 5703 FC 6003 FC o o o o o Pp Fb sf Le 400 365 1480 720 1480 730 1460 720 1460 36 k i m ol ve sk k s i 00 1915 220 y 1915 laoo 37 POSITIONS OF HOLES FOR ANTI VIBRATION MOUNTS Three module 6303 FC 6603 FC APA m K ma 1460 sl ZEB v RI 768 M 1915 TEL ne 1915 da POSITIONS OF HOLES FOR ANTI VIBRATION MOUNTS Three module 6903 FC 7203 FC o o o e O O CNN PA 1915 720 bl 1915 m 1915 720 ple 1516 E 38 E 1815 um n 1815 u 5350 gt oe tm gt 1915 reo n 1915 5350 For correct design of the hydraulic plant follow the local legislation in force regarding safety The following informa tion is suggested for correct installa tion of the unit NOTE For good functioning of the unit It is re commended to install a filter on pump intake and a pump in the versions with desuperheater on heat exchanger en try 211 INTERNAL HYDRAULIC CIRCUIT SUPPLIED AS PER STANDARD The hydraulic circuit of the NSB is made up according to the version from 21 1 1 Standard NSB fig 1 Shell and tube HEAT EXCHANGER Differential pressure switch Water inlet and outlet probes SIW SUW Three way valve Additional air water coil Victaulic connection joint with ga sket to weld all th
8. 350 es amm OUT Vic zi p Ld 4370 NSB FREECOOLING 3902 4202 ov ov TTC 79 LOX OUT Vic 5 li S HERES 480 1575 5350 i Wu OUT Vic 6 PE 5 ig IN Vic 6 o t k 9720 4370 NSB FREECOOLING 4502 4802 343 r 1 r n 1 3 SIME Zl Wi OUT Vic 6 I TO 4 OUT Vic 6 B IN Vic 6 e IN Vic 6 j Ligne ol amp HS 1l TU CX sq P N an C r 8 Ez jT ET IA BAR ree C L 4 J L Jj 1480 14801 1575 pue 1575 5350 10700 ol ap oj 343
9. 194 CHOICE OF THE PLACE OF INSTALLATION Before beginning installation agree the position with the customer and pay at tention to the following recommenda tions The point of installation must be ca pable of supporting the unit weight The selected place must have enou gh space to permit all the necessa ry tube positionings Remember that the chiller can transmit vibrations it is therefo re recommended to mount anti vibration mounts AVX accessori es fixing them to the holes on the base 20 mm IT IS mandatory to envision the necessary technical spaces Tab 19 11 to allow ROU TINE AND EXTRAORDINARY MAIN TENANCE AND FOR FUNCTIONING 19 INSTALLATION REQUIREMENTS 19 2 POSITIONING The chiller is delivered from the fac tory wrapped in estincoil positioned on a pallet Before any handling of the unit ve rify the lifting capacity of the machi nes used Make sure that the ropes are type approved to support the weight of the unit make sure they are well fastened The lifting frame must have the con nection point on the vertical of the barycentre The axes of the barycen tre are indicated by stickers positio ned on the base Handling must be performed by gua lified suitably equipped staff To handle the machine IN THE 19 1 1 Handling example minimum technical spaces CASE OF LIFTING To ensure that the NSB structure is not damaged by the belts place pro t
10. 26 100 26 100 26 100 26 100 26 100 Partial load Pa 51 100 51 100 51 100 51 100 51 100 51 100 26 100 26 100 26 100 26 100 26 100 VT ele Pf 40 100 40 100 40 100 40 100 40 100 40 100 20 100 20 100 20 100 20 100 20 100 Pa 44 100 44 100 44 100 44 100 44 100 44 100 22 100 22 100 22 100 22 100 22 100 EVAPORATOR Type Shell and tube Number n 1 1 1 1 1 1 1 1 1 1 1 Hydraulic connections Tip a V 4 V 5 V 85 V 8 V e amp jV7 g v 5 V S VZ 5 V 6 V 6 FANS Type Axial Number n 6 6 6 8 10 10 6 8 8 10 10 Aides E m 70000 78000 87 000 100000 112000 127000 74000 80000 96000 124500 120000 FC 102000 102000 102000 136000 170000 170000 102000 102000 136000 170000 170000 E 3 3 3 6 3 6 5 2 6 5 7 3 0 4 8 4 0 70 8 0 Input power kW FC 12 12 12 16 20 20 12 12 16 20 20 SZEW E A 6 6 6 6 6 6 8 8 11 0 11 0 6 3 8 4 8 4 10 5 10 5 F 24 24 24 32 40 40 24 24 32 40 40 SOUND DATA Sound power FC dB A 94 0 95 0 97 0 970 98 0 98 0 96 0 970 97 0 98 0 98 0 Sound Pressure FC dB A 62 0 63 0 65 0 65 0 66 0 66 0 64 0 65 0 65 0 66 0 66 0 Sound power E dB A 86 0 870 89 0 89 0 90 0 90 0 88 0 89 0 89 0 90 0 90 0 Sound Pressure E dB A 54 0 55 0 570 570 58 0 58 0 56 0 570 570 58 0 58 0 DIMENSIONS Height mm 2450 2450 2450 2450 2450 2450 2450 2450 2450 2450 2450 Width mm 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 Le
11. 926 920 88 9 851 789 720 68 2 2502 90 0 580 740 849 882 856 876 802 705 60 9 2652 910 59 0 750 923 901 89 2 86 8 80 9 713 62 2 2802 910 590 750 923 917 899 863 796 718 645 3002 91 0 59 0 75 0 875 890 895 874 80 6 724 61 3 3202 92 0 60 0 76 0 883 894 900 884 828 743 621 3402 92 0 60 0 760 884 887 902 883 82 6 746 62 6 3602 92 0 60 0 760 886 901 905 883 824 748 631 3902 93 0 610 770 89 1 90 3 90 7 887 831 75 5 63 7 4202 93 0 610 770 896 906 910 890 838 781 64 2 4502 93 0 610 770 888 910 912 891 832 764 646 4802 930 610 770 878 914 915 882 826 76 7 650 5003 940 620 78 0 901 91 4 918 901 844 763 642 5203 940 62 0 780 902 918 921 901 843 764 645 5403 940 620 780 903 918 822 900 842 768 648 5703 94 0 62 0 78 0 907 820 924 90 3 847 771 65 2 6003 94 0 620 78 0 901 92 3 92 6 90 4 842 773 656 6303 940 620 780 907 920 824 90 3 847 771 65 2 6603 95 0 63 0 790 898 928 929 907 843 779 662 6903 95 0 630 79 0 902 929 93 1 90 9 848 783 665 7203 95 0 63 0 79 0 896 832 833 910 844 78 5 668 25 26 WITH THE ACCESSORY KIT AK can only be installed when
12. module module module module module module module module module module module Width mm 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 Length mm 5750 5750 5750 5750 7160 7160 8150 9140 10120 10120 11100 4802 5003 5203 5403 5703 6003 6303 6603 6903 7203 Two Three Three Three Three Three Three Three Three Three module module module module module module module module module module Width mm 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 Length mm 11100 11530 12520 13510 14490 14490 15470 15470 16450 16450 NOTE exchange coil After positioning in the place The NSBs from 5703 to 7203 are delive red separated composed of a two module with the electric box placed at the head of the unit and a single module that has its electric box under the compressors side of installation they must be connected elec trically For further information refer to the electric data chapter For the distribution of weights barycentres and lifting points re fer to the tables below 30 PERCENTAGE OF WEIGHT DISTRIBUTION ON SUPPORTS AS 2 3 4 5 6 7 8 9 10 11 12 13 14 15 SINGLE MODULE 1251 3760 FC 1401 3770 FC 1601 3840 FC 1801 5000 FC 2101 5950 FC 2401 5980 FC 1402 4010 FC 1602 4030 FC 1802 4730 FC 2002 5740 FC 2202 5
13. 5 Use in compliance with destination Preservation of the documentation oO Fundamental safety regulations eee 5 Product identification eene 5 Description of the unit Models available Available versions ici terca 6 S6LCUPSAVGII BIE A 6 Description of the components Cooling circuit Frame and fans ocaeca tone endete 8 Hydraulic components Control and safety components Electric components Electronic adjustment ACCESSONIES 10 Technical data 12 NSB 1251A 2202A HIGH EFFICIENCY and in FREECOOLING mode seen 12 NSB 2352A 4502A HIGH EFFICIENCY and in FREECOOLING mode seen 13 NSB 4802A 7203A HIGH EFFICIENCY and in FREECOOLING mode NSB 1251E 2202E LOW NOISE HIGH EFFICIENCY EXECUTION and in FREECOOLING mode 15 NSB 2352E 4502E LOW NOISE HIGH EFFICIENCY EXECUTION and in FREECOOLING mode 16 NSB 2852E 4502E LOW NOISE HIGH EFFICIENCY EXECUTION and in FREECOOLING mode 17 Selection CAE iniciadas 18 Oper tio MIES wasi encia 18 Design data Dir 97 83 UE eee 18 Coefficient Factors Cooling Capacity and Input Power High Efficiency Versions coccion 9 High Efficiency Versions
14. Weight kg 108 193 117 203 121 217 140 255 148 271 For the units with pumping kits the following weights must be added which however do not affect the barycentres and the distribu tion of weights on the rest surfaces 29 16 WEIGHTS AND BARYCENTRES NOTE SINGLEMODULE This chapter states the weight per o centages on the rest surfaces na D turally the weight percentage also A o o a identifies the presence of the AVX For the exact position of the holes for installation of the AVX see chapter L 22 gt 0 tle o e e O Gx LO o TWO MODULE LO jo 0 o eo o m 0 Te e P Gx gt o THREE MODULE S otr e 9 jo GO 9 gt 0 IB 9 o ojo o O O o o 23 Gx al LO lt 1611 BASE DIMENSIONS A s s A 1251 1401 1601 1801 2101 2401 1402 1602 1802 2002 2202 Single Single Single Single Single Single Single Single Single Single Single module module module module module module module module module module module Width mm 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 Length mm 3780 3780 3780 4770 5750 5750 3780 3780 4770 5750 5750 2352 2502 2652 2802 3002 3202 3402 3602 3902 4202 4502 Single Single Single Single Two Two Two Two Two Two Two
15. bar 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 4802 5003 5203 5403 5703 6003 6303 6603 6903 7203 High pressure double pressure switch AP bar 18 19 18 19 18 18 18 19 18 18 18 19 18 18 18 18 18 19 18 19 High pressure transducer TAP bar 177 17 7 17 7 17 7 17 7 17 7 17 7 17 7 17 7 17 7 Low pressure transducer TBP bar 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 COOLING CIRCUIT SAFETY DEVICES 1251 1401 1601 1801 2101 2401 1402 1602 1802 2002 2202 Low pressure valve bar 16 5 16 5 16 5 16 5 16 5 16 5 16 5 16 5 16 5 16 5 16 5 High pressure valve bar 22 22 22 22 22 22 22 22 22 22 22 2352 2502 2652 2802 3002 3202 3402 3602 3902 4202 4502 Low pressure valve bar 16 5 16 5 16 5 16 5 16 5 16 5 16 5 16 5 16 5 16 5 16 5 High pressure valve bar 22 22 22 22 22 22 22 22 22 22 22 4802 5003 5203 5403 5703 6003 6303 6603 6903 7203 Low pressure valve bar 16 5 16 5 16 5 16 5 16 5 16 5 16 5 16 5 16 5 16 5 High pressure valve bar 22 22 22 22 22 22 22 22 22 22 REDNIE DEPHEHEEEEEE EZ 15 DIMENSIONS I E R uu NN E m ML m SB 95 v b b e JO E BN M i s N d b 100 100 400 Golfari
16. 100 22 100 22 100 22 100 22 100 22 100 Pa 81 100 21 100 21 100 21 100 21 100 21 100 21 100 21 100 21 100 21 100 21 100 EVAPORATOR Type Shell and tube Number n 1 1 1 1 2 2 2 2 2 2 2 Hydraulic connections Tip a V 6 V Z VZ VZ VZ VZ VZ 5 V Z 5 V 5 6 V 5 6 V7 6 FANS Type Axial Number n 10 10 10 10 12 12 14 16 18 18 20 Air flow rate A FC m3 h 170000 170000 170000 170000 204000 204000 238000 272000 306000 306000 340000 Input power A FC kw 20 20 20 20 24 24 28 20 36 36 40 Current absorbed A FC A 40 40 40 40 36 36 42 48 54 54 60 SOUND DATA Sound power A FC dB A 98 0 98 0 99 0 99 0 99 0 100 0 100 0 100 0 101 0 101 0 101 0 Sound Pressure A FC dB A 66 0 66 0 670 670 670 68 0 68 0 68 0 69 0 69 0 69 0 DIMENSIONS Height mm 2450 2450 2450 2450 2450 2450 2450 2450 2450 2450 2450 Width mm 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 Length mm 5750 5750 5750 5750 7160 7160 8150 9140 10120 10120 11100 empty WEIGHT kg 6340 6330 6340 6350 7210 7310 8410 9180 10580 11580 11104 PUMPS FA FC FE FG FJ Input power kw 4 55 75 92 11 NOTE Current absorbed A 55 75 1 1235 15 Pf Cooling capacity Weight kg 109 117 121 140 148 Pe Input power DATA DECLARED ACCORDING TO EN14511 2004 Frecooling vity factor Q 2 in compliance with ISO 3744 cooling Input wa
17. 100 22 100 22 100 EVAPORATOR Type Shell and tube Number n 1 4 1 1 2 2 2 2 2 2 2 Hydraulic connections Tip a V 6 V Z VZ V Z VZ VZ V 5 VZ 5 V 5 6 V 5 6 V 6 FANS Type Axial Number n 10 10 10 10 12 12 14 16 18 18 20 ER E m h 123000 130000 130000 140000 1165000 174000 187000 200000 212000 227000 239000 FC 170000 170000 170000 170000 204000 204000 238000 272000 306000 306000 340000 ligit Bawer E dn 6 5 6 5 6 5 6 5 78 78 88 7 117 12 2 13 5 FC 20 20 20 20 24 24 28 20 36 36 40 E 10 5 11 0 11 0 11 0 13 13 15 18 20 20 22 Current absorbed A FC 40 40 40 40 36 36 42 48 54 54 60 SOUND DATA Sound power FC dB A 98 0 98 0 99 0 99 0 99 0 100 0 100 0 100 0 1010 1010 1010 Sound Pressure FC dB A 66 0 66 0 670 670 670 68 0 68 0 68 0 69 0 69 0 69 0 Sound power E dB A 90 0 90 0 91 0 91 0 91 0 92 0 92 0 92 0 93 0 93 0 93 0 Sound Pressure E dB A 58 0 58 0 59 0 59 0 59 0 60 0 60 0 60 0 61 0 61 0 610 DIMENSIONS Height mm 2450 2450 2450 2450 2450 2450 2450 2450 2450 2450 2450 Width mm 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 Length mm 5750 5750 5750 5750 7160 7160 8150 9140 10120 10120 11100 empty WEIGHT kg 6340 6330 6340 6350 7210 7310 8410 9180 10580 11580 11104 PUMPS FA FC FE FG FJ Input power kW 4 55 75 32 11 NOTE Current absorbed A 55 75 10 125 15 Pf Cooling capacity Weigh
18. 3 3 MTC1 A 360 214 280 340 340 340 340 320 320 360 MTC2 A 360 340 340 340 340 340 320 320 360 360 MTC3 A N 340 340 340 320 360 360 360 360 360 COMPRESSORS CIRCUIT BREAKER RELAY 1251 1401 1601 1801 2101 2401 1402 1602 180 2002 2202 RT1 A 125 136 178 197 203 228 78 91 103 103 15 RT A N N N N N X 78 91 103 125 115 RT3 Al A A N N N N N N 2352 2502 2652 2802 3002 3202 3402 3602 3902 4202 4502 RT1 A m5 125 125 136 136 178 178 197 197 203 203 RT A 125 125 136 136 178 178 197 197 203 203 228 RT3 A A N x N N X N 4802 5003 5203 5403 5703 6003 6303 6603 6903 7203 RT A 228 178 178 197 197 197 197 203 203 228 RT2 A 228 178 197 197 197 197 203 203 228 228 RT3 A N 197 197 197 203 228 228 228 228 228 COMPRESSOR FUSES 1251 1401 1601 1801 2101 2401 1402 1602 1802 2002 2202 F1 A 250 250 315 315 40 500 160 460 200 200 200 F2 A N N S N N N 180 160 200 800 200 F3 aJ N N K X 28 2352 2502 2652 2802 3002 3202 3402 3602 3902 4202 4502 F1 A 250
19. 83 166 1801 m3 29 59 2802 m3 43 86 5403 m3 88 176 2101 m3 33 65 3002 m9 48 93 5703 m3 91 183 2401 m3 37 75 3202 m3 49 97 6003 m3 96 192 1402 m3 21 43 3402 m9 54 107 6303 m3 99 199 1602 m3 24 48 3602 m9 59 117 6603 mS 104 208 1802 m3 28 56 3902 m3 62 124 6903 m3 107 214 2002 m3 32 63 4202 m3 67 133 7203 m3 112 224 2202 m3 35 69 4502 m3 70 140 24 12 1 PUMPS SELECTION NOTE The type of pump is used for each NSB model i e for all circuits that make up the model selected the pump will al ways be the same In the presence of a second reserve pump switch over of the pumps takes place manually by acting in the selector switch positioned inside the electric control board Premise the last number ofthe selected model indicates by how many hydraulic circuits the machine is composed For models from 3002 to 4802 conside ring that stated above the pump will be selected by dividing the total water flow rate indicated in the technical data table by 2 last number of the sales code The same procedure is applied with models from 5003 to 7203 As stated above the total flow rate must be divided by three last number of the code For all remaining models the flow rate remains the same always in dicated in the technical data table 12 1 1 Pump selection example NSB 320eL 2 hydraulic circuits Useful static pressure requested 300kPa Nominal water flow rate 105 950 m3 h Nominal pressure
20. Total differential Autostart FANS MAGNETIC CIRCUIT BREAKERS 1251 1401 1601 1801 2101 2401 1402 1602 1802 2002 2202 Fans n 6 6 8 8 10 10 6 6 8 10 10 MTV1 A 26 26 26 34 5 43 43 26 26 34 5 43 43 MTV2 Al N X N N N s N MTV3 Al N N N N N N N X 2352 2502 2652 2802 3002 3202 3402 3602 3902 4202 4502 Fans n 10 10 10 10 12 12 14 16 18 18 20 MTV1 A 43 43 43 43 26 26 26 34 5 34 5 34 5 43 MTve A N X N N 26 26 34 5 34 5 43 43 43 MTV3 moje X N X X N X N X N N N 4802 5003 5203 5403 5703 6003 6303 6603 6903 7203 Fans n 20 20 ee 24 26 26 28 28 30 30 MTV1 A 43 26 26 34 5 34 5 34 5 34 5 34 5 43 43 MTve A 43 26 34 5 34 5 34 5 34 5 43 43 43 43 MTV3 A N 34 5 34 5 34 5 43 43 43 43 43 43 wa c M z 1251 1401 1601 1801 2101 2401 1402 1602 180 2002 2202 Compressors n 1 1 1 1 1 1 2 2 2 2 2 MTC1 A 196 214 280 340 320 360 98 144 162 162 182 MTC2 A N X X X X X 144 144 162 182 182 MTC3 LIRA N X N N X X N X 2352 2502 2652 2802 3002 3202 3402 3602 3902 4202 4502 Compressors n 2 2 2 2 2 2 2 2 2 2 2 MTC1 A 182 196 196 214 214 280 280 340 340 340 320 MTC2 A 196 196 214 214 280 280 340 340 320 360 360 MTC3 Al X 4802 5003 5203 5403 5703 6003 6303 6603 6903 7203 Compressors n 2 3 3 3 3 3 3 3
21. building the machine and therefore must be reque sted when placing the order There is further noise reduction The table with data is found at the side NOTE For further information regarding the KIT refer to the ACCESSORIES chapter KEY Working conditions Input water temperature 12 C Produced water temperature 7 C External air temperature 35 C Total noise levels Octave band Hz AK Power Pressure 125 250 500 1000 2000 4000 8000 dB A del km Sound power for band central frequency dB 1251 840 52 0 680 808 805 796 812 758 666 537 1401 83 0 510 670 808 805 791 802 748 656 53 7 1601 84 0 520 680 808 805 806 817 743 646 53 7 1801 85 0 53 0 69 0 884 83 7 82 7 796 742 721 596 2101 860 540 700 875 864 826 823 760 694 577 2401 86 0 540 700 875 874 821 823 760 704 587 1402 83 0 510 670 833 819 807 775 745 665 548 1602 840 520 680 832 80 9 8233 800 735 665 546 1802 84 0 52 0 680 823 79 9 818 817 715 640 53 6 2002 85 0 530 690 829 813 820 826 73 9 65 3 525 2202 850 53 0 69 0 825 807 807 826 75 9 646 523 2352 850 530 69 0 825 807 807 826 759 646 523 2502 85 0 530 690 8
22. conditions ne cessary for a safe and prolonged use elevated reliability and long life of unit All appliances are subject to inevitable wear and tear over time Maintenance makes it possible to Maintain the efficiency of the unit Reduce the speed of deterioration Gather information and data and understand the state of efficiency of the unit in order to prevent brea kdowns IT is fundamental that the following con trols are made annually 2511 Hydraulic circuit Refilling of water circuit Cleaning the water filter Controlling flow switch pressure switch Emptying the air from the circuit Verifying that the water flow rate to the evaporator is constant Verifying the thermal insulation of the hydraulic piping outputs and absorption of the chiller the sizing of the pumps and the ou tput of the terminals 25 MAINTENANCE Checking the percentage of glycol where envisioned 254 2 Electrical circuit Safety devices efficiency Electric power supply voltage Electrical Input Tightening of electrical connections Checking the condition of the electri cal wires and their insulation Verifying the operation of the com pressor sump 25 1 3 Cooling circuit State of compressor Resistance effectiveness of the ex changer ACCESSORY Verifying work pressure Verifying the water tightness of the cooling circuit and that the pipes h
23. drop 30 kPa per cir cuit Procedure 1 Divide the nominal flow rate by 2 cir cuits 105 950 2 52 975 m3 h 53 m3 h With the flow rate obtained 53 m3 h en ter the graphics as per example at the side obtaining in order to satisfy the need of a useful static pressure of 300 kPa the avai lability of pump J that offers Pump J 345 kPa kW absorbed by pump 8 2 At this point in order to have useful static head at the plant just subtract the evapo rator pressure drop from the useful static pressure of the pump kPa pump FJ Nominal pressure drops 345kPa 30kPa 315 kPa of useful static pressure at the plant 15 kPa above the request 12 PUMPS field Pumping unit field Pumping unit FO without pumping unit FF with pump E and reserve pump FA with pump A FG with pump G FB with pump A and reserve pump FH with pump G and reserve pump FC with pump C FJ with pump J FD with pump C and reserve pump FK with pump J and reserve pump FE with pump E kPa 400 350 300 250 200 150 100 50 20 30 40 50 60 70 80 90 100 110 kW 20 15 10 LH PJ EEE R T E PC TEE PA o 20 30 40 50 60 70 80 90 100 110 Water flow
24. external temperature allowed 46 C 42 C for size 1601 3002 3202 3402 5003 5203 Acoustic protection cover for compressor for silent fun ctioning 4 2 AVAILABLE VERSIONS HIGH EFFICIENCY Maximum exter nal temperature allowed 46 C 42 C for size 1601 3002 3202 3402 5003 5203 acoustic protection cover for compressor for more silent functioning SILENCED ET Extra to the high effi ciency version A this configuration envisions a silencer on the pressing line and an electronic phase cutting device which allows a reduction of fan revs on the variation of the envi ronmental temperature conditions ATTENTION Before every unit start up or at the end of every prolonged pause period it is ex tremely important that the compressor sump oil has been previously heated by means of the power supply of the rele vant electric resistance for a period of at least 8 hours The sump resistance is po wered automatically when the unit stops as long as the unit is live 4 3 SET UPS AVAILABLE NSB range chillers are available in 32 sizes By appropriately combining the va riety of options available it is possible to configure every model in the NSB range in a manner that satisfies all specific im plant requirements The following configurer shows how to make up the sales code in the 16 fields that make it up representative of the op tions available 12 3 4 5 6 7 8 9
25. glycol per centage value necessary for producing water at the desired temperature Initial sizes for EXTERNAL AIR TEM PERATURE and TEMPERATURE OF PRODUCED WATER are not directly related therefore it is not possible to refer to the curve of one of these si zes to obtain corresponding point on the curve of the other size 21 11 PRESSURE DROPS 111 PRESSURE DROPS AND MINIMUM WATER CONTENT 11 1 1 Evaporators pressure drops cooling mode The following graphics illustrate the pressure drop values in kPa depending on the flow rate in l h The functioning range is delimited by the minimum and maximum curve va lues which indicate the limit of use of A 0 50000 100000 150000 200000 250000 300000 the water side heat exchangers evapo rators kPa Water capacity l h NOTE For all models the hydraulic parallels are the installer s responsibility 0 100000 200000 300000 400000 500000 Water capacity l h 11 1 2 Total pressure drops of the Chiller in FREECOOLING The following graphics illustrate the TO TAL pressure drop values in kPa depen ding on the flow rate in Lh of the chiller in FREECOOLING mode The pressu
26. per il A sollevamento C 15 1 DIMENSIONS OF HIGH EFFICIENCY VERSIONS A AND HIGH EFFICIENCY IN NOISE VERSION E Version DIMENSIONS 1251 1401 1601 1801 2101 2401 1402 1602 1802 2002 2202 Height B mm 2450 2450 2450 2450 2450 2450 2450 2450 2450 2450 2450 Width A mm 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 Length C mm 3780 3780 3780 4770 5750 5750 3780 3780 4770 5750 5750 empty VVEIGHT kg 3760 3770 3840 5000 5950 5980 4010 4030 4730 5740 5790 2352 2502 2652 2802 3002 3202 3402 3602 3902 4202 4502 Height B mm 2450 2450 2450 2450 2450 2450 2450 2450 2450 2450 2450 Width A mm 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 Length C mm 5750 5750 5750 5750 7160 7160 8150 9140 10120 10120 11100 empty VVEIGHT kg 6340 6330 6340 6350 7210 7310 8410 9180 10580 11580 11104 4802 5003 5203 5403 5703 6003 6303 6603 6903 7203 Height B mm 2450 2450 2450 2450 2450 2450 2450 2450 2450 2450 Width A mm 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 Length C mm 11100 11530 12520 13510 14490 14490 15470 15470 16450 16450 empty WEIGHT kg 11320 12990 13790 15220 15130 15160 16560 17560 17084 17300 15 2 PUMPS WEIGHT CODES FA FB FC FD FE FF FG FH FJ FK
27. perature gas into the atmosphere Wind earthquakes and other natural phenomena of exceptional intensity have not been considered If the unit is used in an aggressive at mosphere or with aggressive water please consult the manufacturer 49 50 91 A pri tma ERMEC r 1 clima 37040 Bevilacqua VR Italien Via Roma 44 Tel 39 O442 633111 Telefax 39 0442 93730 39 0442 93566 wwwaermeccom AERMEC COMPANY QUALITY SYSTEM y E aN gt E A carta reciclata As recycled paper ISO 9001 2000 012816 papier recycl es recycled papier 4 AERMEC SPA The technical data stated in this documentation is not binding Aermec reserves the right to apply at any time all the modifications deemed necessary for improving the product
28. suitably dimen sioned for the effective flow rate of the water requested by the plant during functioning The water flow rate to the heat exchanger must always be con stant In the NSB 5703 6003 6303 6603 6903 7203 which are delivered se parated the hydraulic connection must be made after the two units have been positioned on site and they must be ali gned by acting on the AVX jack in the order of 1 2 mm In the two and three module models the water outlet probe SUW with its well is free near to the electric box Hemember to insert it into the hydraulic parallel output collector first envisioning a inch coupling KEY 1 Supplied Victaulic connection and stub pipe connection 2 Shell and tube heat exchanger Differential pressure switch 4 Chiller connections W Fig 1 39 KEY 1 Pump 2 Supplied Victaulic attachment and stub pipe connection 3 Reserve pump 4 One way valve 5 Gate valve B Shut off expansion vessels 2x25I 7 Charging unit 8 Heat exchanger 9 Chiller attachments 10 Differential pressure switch KEY 1 Pump Supplied Victaulic attachment and stub pipe connection 3 Shut off expansion vessels 2x2 4 Gate valve 5 Charging unit 6 Heat exchanger 7 Chiller attachments 8 Differential pressure switch NOTE In these vers
29. 0 476000 510000 510000 laii power E G 14 12 14 16 17 17 39 19 21 21 FC 40 40 44 48 52 52 2 56 60 60 E 22 22 24 26 29 29 60 31 33 33 Current absorbed A FC 60 80 88 96 104 104 79 112 120 120 SOUND DATA Sound power FC dB A 101 0 102 0 102 0 102 0 1020 102 0 1020 103 0 103 0 103 0 Sound Pressure FC dB A 69 0 70 0 70 0 70 0 70 0 70 0 70 0 71 0 71 0 71 0 Sound power E dB A 93 0 94 0 94 0 94 0 94 0 94 0 94 0 95 0 95 0 95 0 Sound Pressure E dB A 61 0 62 0 62 0 62 0 62 0 62 0 62 0 63 0 63 0 63 0 DIMENSIONS Height mm 2450 2450 2450 2450 2450 2450 2450 2450 2450 2450 Width mm 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 Length mm 11100 11530 12520 13510 14490 14490 15470 15470 16450 16450 empty WEIGHT kg 11320 12990 18790 15220 15130 15160 16560 17560 17084 17300 PUMPS FA FC FE FG FJ Input power kW 4 55 75 ge 11 Current absorbed A DB 79 10 125 15 Weight kg 109 117 121 140 148 DATA DECLARED ACCORDING TO EN14511 2004 cooling Input water temperature Produced water temperature External air temperature At SOUND PRESSURE measured in free field conditions at a distance of 10 mt with directi vity factor Q 2 in compliance with ISO 3744 SOUND POWER Aermec determines the sound power value on the basis of measure ments made in compliance with ISO 9614 2 Standards with respect to the requisites implemented by EUROVENT c
30. 00 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 Length mm 3780 3780 3780 4770 5750 5750 3780 3780 4770 5750 5750 empty WEIGHT kg 3760 3770 3840 5000 5950 5980 4010 4030 4730 5740 5790 PUMPS FA FC FE FG FJ Input power kW 4 55 75 92 11 NOTE Current absorbed A 05 75 10 125 15 Pf Cooling capacity Weight kg 109 117 121 140 148 Pa Input power DATA DECLARED ACCORDING TO EN14511 2004 Frecooling vity factor Q 2 in compliance with ISO 3744 cooling Input water temperature 15 C SOUND POWER Aermec determines the Input water temperature 12 C External air temperature 2 sound power value on the basis of measure Produced water temperature 7C Glycol 0 ments made in compliance with ISO 9614 2 External air temperature 35 C Standards with respect to the requisites At 5k SOUND PRESSURE measured in free field implemented by EUROVENT certification conditions at a distance of 10 mt with directi 7 2 NSB 2352A 4502A HIGH EFFICIENCY AND IN FREECOOLING MODE COOLING 2352A 2502A 2652A 2802A 3002A 3202A 3
31. 10 11 12 13 14 15 16 NSB 1251 X 5 P A E z FB Field Identification 13 Heat exchangers 1 2 3 NSB 2 PED Regulation 4 5 6 7 Sizes 1251 1401 1601 1801 2101 2401 1402 14 Power supply 1602 1802 2002 2202 2352 2502 3 400V 50 Hz with fuses 2652 2802 3002 3202 3402 3602 2 37 230V 50 Hz with fuses 3902 4202 4502 4802 5003 5203 4 3 230V 50 Hz with magnet circuit breakers 5403 5703 6003 6303 6603 6903 7203 5 37 BOOV 50Hz with fuses 8 3 400V 50 Hz with magnet circuit breakers 8 Refrigerant 9 3 500V 50Hz with magnet circuit breakers B Standard Y Low temperatures to 6 C 45 16 Pumps X With electronic valve FO Without pumping unit FA Pumping unit pump AJ 3 Model FB Pumping unit pump A and reserve pump A Cooling Only FC Pumping unit pump C FD Pumping unit pump C and reserve pump 10 Heat recovery units FE Pumping unit pump E Without recovery units FF Pumping unit pump E and reserve pump FG Pumping unit pump G 11 Version FH Pumping unit Pump G and reserve pump A High efficiency FJ Pumping unit pump J E High efficiency in silenced execution FK Pumping unit pump J and reserve pump 12 Coils gt In aluminium R In copper S In tinned copper V In painted aluminium 9 DESCRIPTION OF THE COMPONENTS Example NSB 2401 FB m duty pump Collector Stand by pump One way valve Gate valve Expansion vessels 25 x 2 Intercepted charging assembly O ONO U A
32. 11121314 15 16 water outlet temperature At 5 C Cfc 4 00 3 50 3 00 2 50 2 00 1 50 1 00 0 50 0 00 10 6 4 2 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Temperature o the system return water 9 6 1 Coefficient factors at At different from Chiller nominal 3 5 5 8 10 Cooling capacity coefficient factors 0 99 1 1 02 1 03 Input power coefficient factors 0 99 1 1 01 1 02 9 6 2 Deposit factors Cooling capacity coefficient factors 1 098 K m2 W 0 00005 0 0001 0 0002 094 Input power coefficient factors 1 0 98 0 95 The cooling capacity and input power coefficient factors of take into account the presence of glycol and different evaporation temperature The pressure drop coefficient factor sconsiders the different flow rate resul ting from the application of the water flow rate correction factor The water flow rate coefficient factors is calculated in a way to keep the same At that would be present with the ab sence of glycol NOTE An example is given on the following page to help graph reading Using the diagram given below it is possi ble to determine the percentage of glycol required this percentage can be calcula ted taking into consideration one of the following factors Depending on which fluid is considered water or air the graph should be inter preted from the right or left side from the crossing point of the exte
33. 2 233 265 298 311 333 346 Evaporator water flow rate Vh 78540 81650 88490 95320 1103870 110890 119440 127980 1385390 145070 152480 Evaporator pressure drop Pa 31 33 28 31 29 33 37 35 31 35 28 FREECOOLING Cooling capacity W 483 489 502 514 580 594 688 788 858 881 956 Total input power W 20 20 20 20 24 24 28 32 36 36 40 Total pressure drop Pa 158 172 188 219 111 105 124 144 134 156 146 EFFICIENCY INDEX EER E W W 2 55 2 48 2 54 2 59 2 72 2 76 2 62 2 49 2 53 2 53 2 56 FC W W 2414 2446 2512 25 70 2418 24 74 24 57 2445 23 82 2447 23 90 ESEER E 312 31 312 3 09 315 316 313 3 08 3 08 312 3 07 ELECTRICAL DATA Power supply V 400V 3 50Hz E A 302 318 337 357 370 387 431 476 50e 538 564 Nominal current FC A 40 40 40 40 48 48 56 64 72 72 80 Maximum current FLA A 440 464 495 525 559 592 686 686 736 788 838 Peak current LRA A 394 410 437 439 441 441 567 588 711 809 809 COMPRESSORS Type twin screw Number n 2 2 2 2 2 2 2 2 2 2 2 Number per circuit m m 2 2 2 28 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 PARTIAL LOAD sk Pf 26 100 26 100 26 100 26 100 26 100 26 100 26 100 26 100 26 100 26 100 26 100 Partial load Pa 26 100 26 100 26 100 26 100 26 100 26 100 26 100 26 100 26 100 26 100 26 100 VT ele Pf 20 100 20 100 20 100 20 100 20 100 20 100 20 100 20 100 20 100 20 100 20 100 Pa 22 100 22 100 22 100 22 100 22 100 22 100 22 100 22 100 22
34. 2 FC 2502 FC 2802 FC o ud 9 9 OF O Pe m 1915 EA d 1915 APS N K POSITIONS OF HOLES FOR ANTI VIBRATION MOUNTS Two module 3002 FC 3202 FC o o l ais l O lO aco EG 2650 sk 730 sk 2650 J a gt POSITIONS OF HOLES FOR ANTI VIBRATION MOUNTS Three module 3402 FC A A o a o 0 A P L O O k O BA e am mu 2650 sk 730 sk 1460 sk 720 sk 1460 sk xi 7750 POSITIONS OF HOLES FOR ANTI VIBRATION MOUNTS Bi module 3602 FC 8740 S O ES MIS SZ 1460 s 720 s 1480 730 1460 M 720 M 1460 sk El POSITIONS OF HOLES FOR ANTI VIBRATION MOUNTS Bi module 3902 FC 4202 FC o o E 1460 220 s 1460 765 d 1915 sk 720 v 1915 POSITIONS OF HOLES FOR ANTI VIBRATION MOUNTS Bi module 4502 FC 4802 FC o o sf e O b d Fb O EE 1915 da 720 M 1915 A O d 1915 M 720 v 1915 gt POSITIONS OF HOLES FOR ANTI VIBRATION MOUNTS Three module 5003 FC e o D a D O O O O O O 400 365 2650 730 2650 730 1460 720 1460 36 pos Lom Loo omes en jum POSITIONS OF HOLES FOR ANTI VIBRATION MOUNTS Three module 5203 FC e o D a D E I 400 365 2650 730 1460 720 1460 730 1460 720 1460 36 so J NON MCN NC NES POSITIONS OF HOLES FOR ANTI VIBRATION MOUNTS Three module 5403 FC D a D z 3 a 1460 720 v 1480
35. 25 807 807 826 759 646 523 2652 85 0 530 69 0 825 807 807 826 759 646 523 2802 860 540 700 825 817 822 836 764 656 533 3002 86 0 540 700 825 817 822 838 764 656 533 3202 860 540 700 825 817 822 836 764 656 533 3402 870 550 710 883 863 846 835 781 696 568 3602 870 55 0 710 921 88 0 849 815 758 716 59 3 3902 870 550 710 811 88 3 846 826 757 700 573 4202 880 560 720 892 881 843 847 781 704 573 4502 880 56 0 72 0 89 2 881 84 3 847 781 70 4 573 4802 880 56 0 72 0 89 2 881 843 847 781 70 4 573 5003 89 0 570 730 906 877 855 855 798 713 587 5203 890 570 730 925 888 857 847 784 713 586 5403 88 5 565 725 942 885 865 834 780 744 624 5703 890 570 730 930 887 860 852 787 720 605 6003 89 0 570 730 930 89 7 860 852 787 72 5 59 5 6303 89 0 570 730 910 884 856 858 791 738 605 6603 90 0 580 740 930 912 866 864 795 720 60 5 6903 910 59 0 750 831 918 873 879 803 719 60 5 7203 92 0 60 0 760 936 93 8 878 884 823 73 9 605 14 CALIBRATION OF SAFETY AND CONTROL PARAMETERS CONTROL PARAMETERS standard Cooling set point Defrosting intervention
36. 250 250 250 250 315 315 315 315 400 400 Fe A 250 250 250 250 315 315 315 315 400 400 500 F3 Al X N N X N N 4802 5003 5203 5403 5703 6003 6303 6603 6903 7203 F1 A 500 315 315 315 315 315 315 315 400 500 F2 A 500 315 315 315 315 315 400 400 500 500 F3 A X 315 315 315 400 500 500 400 500 500 MASTER SWITCH 1251 1401 1601 1801 2101 2401 1402 1602 1802 2002 2202 IG A 250 315 315 400 630 630 315 315 400 400 400 2352 2502 2652 2802 3002 3202 3402 3602 3902 4202 4502 IG A 630 630 630 630 630 630 800 800 800 800 1000 4802 5003 5203 5403 5703 6003 6303 6603 6903 7203 IG A 1000 1000 1000 1250 1250 800 800 800 1000 1000 A N X X N N 630 630 630 630 630 TRANSDUCERS AND PRESSURE SWITCHES 1251 1401 1601 1801 2101 2401 1402 1602 180 2002 2202 High pressure double pressure switch AP bar 18 18 18 19 18 19 18 19 18 18 18 18 18 19 18 18 18 19 18 19 18 19 High pressure transducer TAP bar 177 17 7 17 7 17 7 17 7 17 7 17 7 17 7 17 7 17 7 17 7 Low pressure transducer TBP bar 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 2352 2502 2652 2802 3002 3202 3402 3602 3902 4202 4502 High pressure double pressure switch AP bar 18 19 18 19 18 19 18 19 18 18 18 19 18 19 18 19 18 18 18 19 18 19 High pressure transducer TAP bar 17 7 17 7 17 7 17 7 17 7 177 177 177 177 177 177 Low pressure transducer TBP
37. 3 5 92 9 900 84 6 757 1801 97 0 650 810 959 93 2 94 3 924 894 851 765 2101 98 0 66 0 82 0 970 939 950 837 908 861 77 6 2401 98 0 66 0 82 0 990 94 9 952 93 4 904 86 3 787 1402 96 0 640 800 974 820 916 920 892 854 80 5 1602 970 65 0 810 980 947 92 7 925 89 9 86 0 821 1802 970 650 810 983 945 92 3 92 2 907 85 4 78 3 2002 98 0 66 0 820 984 842 831 93 4 92 0 880 80 9 2202 98 0 660 82 0 1015 96 6 94 6 93 9 911 857 790 2352 98 0 660 82 0 1007 94 7 93 7 93 3 90 4 86 9 81 6 2502 98 0 66 0 82 0 964 918 916 945 92 0 848 79 3 2652 99 0 670 83 0 980 927 940 950 924 86 2 816 2802 99 0 670 83 0 998 951 857 946 917 862 793 3002 99 0 670 830 978 947 958 952 919 860 772 3202 100 0 68 0 840 983 953 965 959 830 876 787 3402 100 0 68 0 840 986 958 970 95 7 827 878 791 3602 100 0 68 0 840 989 962 973 954 925 881 795 3902 101 0 69 0 85 0 995 966 977 961 832 88 6 801 4202 101 0 69 0 85 0 1000 96 9 98 0 96 7 939 891 80 6 4502 101 0 69 0 85 0 1011 ss sles sles SSe tesi Rele 4802 101 0 69 0 85 0 1020 879 882 964 93 4 883 817 5003 102 0 70 0 86 0 1003 974 986 975 946 895 80
38. 4 104 79 112 120 120 SOUND DATA Sound power A FC dB A 1010 1020 1020 102 0 102 0 1020 1020 103 0 1030 103 0 Sound Pressure A FC dB A 69 0 70 0 70 0 70 0 70 0 70 0 70 0 71 0 71 0 71 0 DIMENSIONS Height mm 2450 2450 2450 2450 2450 2450 2450 2450 2450 2450 Width mm 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 Length mm 11100 11530 12520 13510 14490 14490 15470 15470 16450 16450 empty WEIGHT kg 11320 12990 13790 15220 15130 15160 16560 17560 17084 17300 PUMPS FA FC FE FG FJ Input power kW 4 55 75 92 11 NOTE Current absorbed A 55 75 10 125 15 Pf Cooling capacity Weight kg 109 117 121 140 148 Pa Input power DATA DECLARED ACCORDING TO EN14511 2004 Frecooling vity factor Q 2 in compliance with ISO 3744 cooling Input water temperature 15 C SOUND POWER Aermec determines the Input water temperature 12 C External air temperature 20 sound power value on the basis of measure Produced water temperature 7C Glycol 0 ments made in compliance with ISO 9614 2 External air temperature 35 C Standards with respect to the requisites At 5k SOUND PRESSURE measured in free field implemented by EUROVENT certification conditions at a distance of 10 mt with directi
39. 4 24 32 40 40 24 24 32 40 40 Maximum current FLA A 248 310 355 363 418 468 279 304 353 401 442 Peak current LRA A 338 460 489 497 626 690 226 266 308 352 366 COMPRESSORS Type twin screw Number n 1 1 1 1 1 1 2 2 2 2 2 Number per circuit m m 1 1 1 1 1 1 1 1 1741 1 1 2 1 2 1 2 1 2 1 2 1 PARTIAL LOAD rend Pf 56 100 56 100 56 100 56 100 56 100 56 100 28 100 28 100 28 100 28 100 28 100 Para load Pa 49 100 49 100 49 100 49 100 49 100 49 100 24 100 24 100 24 100 24 100 24 100 VT ele Pf 43 100 43 100 43 100 43 100 43 100 43 100 22 100 22 100 22 100 22 100 22 100 Pa 42 100 42 100 42 100 42 100 42 100 42 100 21 100 21 100 21 100 21 100 21 100 EVAPORATOR Type Shell and tube Number n 1 1 1 1 1 1 1 1 1 1 1 Hydraulic connections Tip a V 4 V 5 V 85 V 8 V e amp j jV g v 5 V Z V Z 5 V 6 V 6 FANS Type Axial Number n 6 6 6 8 10 10 6 6 8 10 10 Air flow rate A FC m3 h 102000 102000 102000 136000 170000 170000 102000 102000 136000 170000 170000 Input power A FC kw 18 12 12 16 20 20 12 12 16 20 20 Current absorbed A FC A 24 24 24 32 40 40 24 24 32 40 40 SOUND DATA Sound power A FC dB A 94 0 95 0 970 970 98 0 98 0 96 0 970 970 98 0 98 0 Sound Pressure A FC dB A 62 0 63 0 65 0 65 0 66 0 66 0 64 0 65 0 65 0 66 0 66 0 DIMENSIONS Height mm 2450 2450 2450 2450 2450 2450 2450 2450 2450 2450 2450 Width mm 22
40. 402A 3602A 3902A 4202A 4502A Cooling capacity W 501 522 553 584 642 675 746 817 873 926 983 Total input power W 177 186 200 215 219 230 259 288 300 321 334 Evaporator water flow rate h 86240 89860 95190 100520 110420 116130 128320 140500 150210 159350 169060 Evaporator pressure drop Pa 37 40 3e 35 33 36 42 43 38 42 35 FREECOOLING Cooling capacity W 498 905 514 522 592 602 705 807 889 907 989 Total input power W 20 20 20 20 24 24 28 32 36 36 40 Total pressure drop Pa 168 184 197 226 116 108 130 153 144 165 156 EFFICIENCY INDEX A W W 2 83 2 81 2 76 2 72 2 93 2 94 2 88 2 84 2 91 2 89 2 95 FC W W 24 91 25 24 25 69 2610 24 68 2510 2516 25 21 24 70 2519 24 73 ESEER A 3 71 4 25 4 25 4 21 4 28 4 3 4 26 419 418 4 24 417 ELECTRICAL DATA Power supply V 400V 3 50Hz PERECA A A 305 322 344 366 376 391 434 476 505 537 566 FC A 40 40 40 40 48 48 56 54 7e 7e 80 Maximum current FLA A 464 487 518 548 588 620 673 726 781 831 885 Peak current LRA A 413 429 456 458 464 464 594 618 745 847 847 COMPRESSORS Type twin screw Number n 2 2 2 2 2 2 2 2 2 2 2 Number per circuit m m 2 1 2 1 2 1 2 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 PARTIAL LOAD ded Pf 28 100 28 100 28 100 28 100 28 100 28 100 28 100 28 100 28 100 28 100 28 100 Partial load Pa 24 100 24 100 24 100 24 100 24 100 24 100 24 100 24 100 24 100 24 100 24 100 VT ele Pf 22 100 22 100 22 100 22 100 22 100 22
41. 49 dated December 28 1993 ATTENTION Following extraordinary maintenance interventions on the cooling circuit involving the re placement of components before re starting the machine carry out the following operations Paythe maximum attention in resto ring the load of refrigerant indicated on the machine plate Open all the cocks present in the co oling circuit Connect the electrical power supply and earth correctly Control that the coil is not dirty or ob structed SYSTEM CHECKS Check all hydraulic connections of en tire system Check that the water pump is wor king correctly Clean the water filter s 261 DISCONNECTING THE UNIT The unit must be disconnected by a quali fied technician Before disconnecting the unit the following must be recovered if present The refrigerant gas the gas must be extracted using suction devices ope rating in a closed circuit to ensure there are no gas leaks into the envi ronment The glycol must not be dispersed in the environment when removed but stored in suitable containers NOTE The disposal of the refrigerant gas the glycoled water where present and the recovery of any The appliance is designed and construc ted to guarantee maximum safety in its immediate vicinity IP24 as well as to resist atmospheric agents 271 IMPORTANT SAFETY INFORMATION The machine must not exceed the pres sure and temperature limits indicated MEN
42. 56 60 60 Total pressure drop Pa 167 118 131 144 137 152 145 141 153 167 EFFICIENCY INDEX EER E ww 2 56 2 67 2 58 2 51 2 54 2 54 2 56 2 06 2 58 2 58 FC W W 24 48 2462 24 53 24 45 24 02 2446 24 06 24 47 24 09 24 48 ESEER E 3 07 3 09 31 3 06 3 02 312 31 312 312 312 ELECTRICAL DATA Power supply V 400V 3 50Hz E A 600 625 669 713 740 776 802 838 864 900 Nominal current FC A 80 80 88 96 104 104 112 112 120 120 Maximum current FLA A 890 1016 1018 1020 1069 1119 1167 1218 1266 1316 Peak current LRA A 812 707 828 949 1073 1137 1163 1199 1225 1261 COMPRESSORS Type twin screw Number n 2 3 3 3 3 3 3 3 3 3 Number per circuit n n 2 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 PARTIAL LOAD rag Pf 26 100 18 100 18 100 18 100 18 100 18 100 18 100 18 100 18 100 18 100 Pa 26 100 17 100 17 100 17 100 17 100 17 100 17 100 17 100 17 100 17 100 PTE ma P 20 100 13 100 13 100 13 100 13 100 13 100 13 100 13 100 13 100 13 100 Pa 22 100 15 100 15 100 15 100 15 100 15 100 15 100 15 100 15 100 15 100 EVAPORATOR Type Shell and tube Number n 2 3 3 3 3 3 3 3 3 3 Hydraulic connections Tipo a V 6 V 5 V 5 V 5 V5 6 V5 6 V5 6 V5 6 VZ 6 V 6 FANS Type Axial Number n 20 20 22 24 26 26 28 28 30 30 WERE E m3 h 254000 274000 287000 300000 312000 327000 339000 354000 366000 381000 FG 340000 340000 374000 408000 442000 442000 47600
43. 790 FC 2352 6340 FC 2502 6330 FC 2652 6340 FC 2802 6350 FC TWO MODULE 7210 FC 7310 FC 8410 FC 9180 FC 0580 FC 1580 FC 1104 FC 1320 FC THREE MODULE 5003 12990 FC 5203 13790 FC 10 8 13 5220 FC 2 1 9 5 11 7 3 3 7 NSB 5703 NSB 3602 NSB 2101 NSB 6003 NSB 3602 NSB 2401 NSB 6303 NSB 3902 NSB 2401 NSB 6603 NSB 4202 NSB 2401 NSB 6903 NSB 4502 NSB 2401 NSB 7203 NSB 480 NSB 2401 KEY NU Rest point and relative hole for AVX present but NOT TO BE USED 32 17 HANDLING 171 LIFTING INSTRUCTIONS Use ropes of the same length and Handling must be performed by that are suitable to lift the weight of gualified staff using safe means Make sure that all panels are tightly the unit fixed before handling the unit Handle the unit with care without Use all and only the lifting points in sudden movements and do not dicated stop under the unit 17 2 LIFTING POINTS 17 24 Single module 1251 1401 1601 1402 1602 1801 1802 550 2280 550 550 1100 o le U o o o o O do jo o o o e lo lo 400 sk 3380 400 sk 4370 2101 2401 2002 2202 2352 2502 2652 2802 lo lo lo lo lo lo
44. 8 5203 102 0 70 0 86 0 1005 977 888 974 844 89 7 810 5403 102 0 70 0 86 0 1007 980 991 DE OE eee ESTE 5703 102 0 70 0 86 0 1011 982 993 977 847 90 2 817 6003 102 0 70 0 86 0 102 0 986 994 975 946 90 3 821 6303 102 0 70 0 86 0 1011 982 993 877 847 90 2 817 6603 103 0 710 870 1030 992 997 979 949 90 7 82 8 6903 103 0 710 870 1082 994 999 98 3 95 3 910 831 7203 103 0 710 870 1038 997 100 0 98 2 95 2 811 83 5 Total noise levels Octave band Hz E Power Pressure 125 250 500 1000 2000 4000 8000 doba pus E Sound power for band central frequency dB 1251 86 0 54 0 70 0 80 6 83 4 84 7 82 6 75 2 66 8 58 5 1401 870 55 0 710 83 5 857 859 831 732 659 573 1601 89 0 570 73 0 853 864 870 854 798 713 591 1801 89 0 570 73 0 856 871 875 853 784 718 601 2101 90 0 580 740 866 876 880 860 808 731 61 2 2401 90 0 580 740 848 884 885 862 796 737 620 1402 88 0 560 720 865 885 870 838 736 697 614 1602 89 0 570 73 0 880 896 883 856 787 720 640 1802 89 0 570 730 876 905 880 825 790 703 626 2002 90 0 580 740 89 7 904 882 858 787 720 673 2202 90 0 580 740 920 912 89 7 852 786 716 62 7 2352 90 0 58 0 740
45. COOLING 5403 T IN Vic br Nye g INVI 9 S k BN k M A our vie s s E y E 1L E HH o b s 9 A 8 Am EE O 9 Ee a ei OE Up fst l 480 890 343 Note The models from 5703 to 7203 are delivered separately 1 two module 1 single module For the position of the ATTACHMENTS refer to their compositions 5703 8740 NSB 3602 5350 NSB 2101 6003 8740 NSB 3602 5350 NSB 2401 6303 NSB 3902 NSB 2401 6603 NSB 4202 NSB 2401 6903 NSB 4502 NSB 2401 7203 NSB 4802 NSB 2401 22 4 VERSIONS WITH ATTACHMENTS PUMP In all versions the pumps are positioned as per figure at the centre of every eva porator There can be up to three one per circuit or six two per circuit one functioning and the other reserve The single pump or pump coupled with the reserve have a Victaulic attachment The diameter of the pump
46. CUMENTATION The installation instructions along with all the related documentation must be given to the user of the system who assumes the responsibility to keep the instructions so that they are always at hand in case of need READ THIS DOCUMENT CAREFULLY the appliance must be installed by qua lified and prepared staff in compliance with national legislation in force in the country of destination Ministerial De cree 329 2004 The appliance must be installed in a way to make maintenance and or repairs possible The appliance warranty does not cover the costs for ladders scaffol ding or other elevation systems that may become necessary for carrying out servi cing under warranty The validity of the warranty shall be void if the above mentioned indications are not respected 2 FUNDAMENTAL SAFETY RULES Itis prohibited to carry out any techni cal or maintenance operation before the unit has been disconnected from the electrical mains by positioning the system master switch and the con trol panel main switch at off Itis prohibited to modify the safety or adjustment devices without the ma nufacturer s authorisation and preci se instructions Itis prohibited to pull detach or twist the electrical cables coming from the unit even if it is disconnected from the mains power supply It is prohibited to leave containers and flammable substances near to the chiller tis prohibited to touch the a
47. IENCY INDEX A w w 2 92 2 90 2 87 2 84 2 88 2 87 2 91 2 90 2 94 2 92 ERA FC WW 2517 2514 2518 25 21 24 86 25 20 24 87 2518 2488 2517 ESEER A 417 4 25 4 26 4 2 415 4 28 4 25 4 28 4 28 4 28 ELECTRICAL DATA Power supply V 400V 3 50Hz A A 598 629 672 714 743 775 804 836 865 897 Nominal current FC A 80 80 88 96 104 104 112 118 120 120 Maximum current FLA A 936 1074 1082 1090 1144 1194 1249 1099 1353 1403 Peak current LRA A 850 727 850 973 1102 1166 1195 1227 1256 1288 COMPRESSORS Type twin screw Number n 2 2 2 2 2 2 2 2 2 2 Number per circuit n n 2 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 PARTIAL LOAD ts Pf 28 100 28 100 28 100 28 100 28 100 28 100 28 100 28 100 28 100 28 100 Partial load Pa 24 100 24 100 24 100 24 100 24 100 24 100 24 100 24 100 24 100 24 100 Pf 22 100 22 100 22 100 22 100 22 100 22 100 22 100 22 100 22 100 22 100 AE Pa 21 100 21 100 21 100 21 100 21 100 21 100 21 100 21 100 21 100 21 100 EVAPORATOR Type Shell and tube Number n 2 3 3 3 3 3 3 3 3 3 Hydraulic connections Tipo a V 6 V 5 VZ5 VZ 5 _ V BIB V5 6 Vote V5 6 V V Z 6 FANS Type Axial Number n 20 20 22 24 26 26 28 28 30 30 Air flow rate A FC m3 h 340000 340000 374000 408000 442000 442000 476000 476000 510000 510000 Input power A FC kW 40 40 44 48 52 52 2 56 60 60 Current absorbed A FC A 60 80 88 96 10
48. In Silenced Execution 20 Corrective Coefficients Versions with Freecooling Only 20 Glycol ethylene MIX aaa no aii criar 21 How To Read The Glycol Curves 21 Pressure dropS ica 22 Pressure Drops And Minimum Water Content Minimum Water Content Pumps 24 Pumps Selection 13 14 15 51 16 6 1 17 71 Ze 18 81 19 9 1 20 21 211 21 2 22 221 22 2 22 3 22 4 23 231 23 2 23 3 23 4 24 241 24 2 24 3 25 25 1 25 2 26 26 1 26 2 27 271 5 2 9 2 Sound HS icis screen 25 Calibration of safety and control parameters e7 Dimensions eese tentent AAAA 29 Weights and barycentres eene 30 Base DIMENSIONS oec obe ddr decederet da 930 PREACHING C Lifting instructions Lifting points Warnings regarding safety and Standards 34 Safety WEAN GS eC 34 IAE AAA dawida awa ee 35 Choice of place of installation sse 35 POS IRIOMI O RC 35 Anti vibration mounts position eerte 36 Hydraulic CIPGUIE ocio 39 Internal hydraulic circuit supplied as per standard 39 External hydraulic circuit not provided 38 Hydraulic connections position eeeennen Single module connections positio
49. La pr ma M il Clima FREECOOLING TECHNICAL MANUAL INSTALLATION MAINTENANCE Air water chiller with screw compressors k 272 KW 1414 KW FC 280 KW 1469 KW INSBFCPY 0810 6310902_01 replacing 6310902_00 del 0710 SELECTION INSTRUCTIONS Dear Customer Thank vou for having purchased an AERMEC product This product is the result of many vears of experience and in depth engineering research and it is built using top guality materials and advanced technologies Moreover the CE mark guarantees that the appliances respond to the reguisites of the European Machinery Directive on the subject safety The gualitative level is under constant surveillance and AERMEC products are therefore a syno nym of Safety Guality and Reliability Product data may be subject to modifications deemed necessary for improving the product without the obliga tion to give prior notice Thank vou again AERMEC SpA AERMEC S p A reserves the right at any moment to make any modifications considered necessary to improve our products and is not obliged to add these modifications to machines that have already been fabricated delivered or are under construction Index 11 1 2 41 4 2 4 3 9 1 5 2 5 3 9 4 5 5 5 6 71 78 7 3 7A 75 7 6 8 1 8 2 9 1 9 2 9 5 9 6 10 11 11 12 01 1 2 21 Warnings regarding the documentation
50. NTION In the event of failure to intervene at the calibration value stop the com pressor immediately and check the cause ALARM reset is manual and can only be carried out when the pres sure falls below the differential value 24 2 2 Overheating Verify the overheating by comparing the temperature read with a contact ther mometer situated on the compressor intake with the temperature shown on the manometer saturation tempera ture corresponding to the evaporation pressure Heating mode optional values are between 3 5 C Cooling mode optional between 6 10 C The manometer is not supplied in the se units therefore we recommend installing one in the respective pres sure point values are 24 2 3 Sub cooling Verify the sub cooling by comparing the temperature read with a contact thermo meter situated on the pipe at condenser outlet with the temperature shown on the high pressure manometer satura tion temperature corresponding to the condensation pressure The difference between these two tempe ratures gives the sub cooling value Opti mal values are between 4 and 5 C The manometer is not supplied in the se units therefore we recommend installing one in the respective pres sure point 24 2 4 Pressing line temperatures If the sub cooling and overheating va lues are normal the temperature me asured in the pressing line pipe at the compressor outlet must be 30 40 C greater than the condensatio
51. TON It is forbidden to LOAD the cooling circuit with a refrigerant gas diffe rent to the one indicated Using a different refrigerant gas can cause serious damage to the compres sor 26 DISPOSAL other material or substance must be carried out by qualified staff in compliance with the specific regulations in force in order to prevent iniury damage to persons or objects as well as the pollution of the surrounding area While waiting for disposal the unit can be stored outdoors as harsh weather con ditions or extreme temperature changes do not cause damaging effects on the environment provided that the electrical cooling and hydraulic circuits are intact and closed 26 2 DISMANTLING AND DISPOSAL In the dismantling stage the fan the 27 INCORRECT USE motor and the coil if operational can be recovered by specialised recycling centres NOTE for dismantling disposal all the mate rials must be taken to authorised fa cilities in compliance with the national regulations in force on this subject For further information on disposal con tact the manufacturer in the table shown in the Functioning limits paragraph of the technical ma nual Correct operation of the unit is not gua ranteed following a fire before restar ting the machine have it checked by an authorised after sales centre The machine is equipped with safety valves that in the event of excessive pressure can discharge the high tem
52. The NSB chiller must be installed by a qualified and suitably trained tech nician in compliance with the natio nal legislation in force in the country of destination Ministerial Decree 329 2004 INSTALLATION 18 SAFETY PRECAUTIONS AND REGULATIONS STANDARDS AERMEC will not assume any respon sibility for damage if these instruc tions are not followed e Before beginning any operation READ THE INSTRUCTIONS CAREFULLY AND CARRY OUT THE SAFETY CHECKS TO REDUCE ALL RISK OF DANGER TO A MINIMUM All the staff involved must have thorough knowledge of the ope rations and any dangers that may arise at the moment in which the in stallation operations are carried out Danger The refrigerant circuit is under pressure Moreoven very high temperatures can be reached The appliance may only be ope ned by a SAT service technician or by a qualified technician Work on the cooling circuit may only be carried out by a qualified refrigeration technician GAS R134a The chiller is delivered supplied with a sufficient quantity of R410A refrigerant gas This is a re frigerant fluid without chloride that does not da mage the ozone layer R134a is not flammable However all maintenance works must be per formed exclusively by a specialised technician with suitable protection equipment Danger of electrical discharge Before opening the chiller completely di sconnect the appliance from the mains electricity
53. U M Shell and tube heat exchanger Liquid tap Twin screw compressor a o Compressors compartment covered in sound absorbing material Air exchange coil Fans unit Electric box Intake safety valve 1st for circuit Dry fit 1st for circuit Thermostatic valve 1st for circuit 51 COOLING CIRCUIT Compressors High efficiency semi hermetic screw compressors with cooling capacity adjustment by means of continuous modulation from 4O to 10096 from 25 to 10096 with electronic valve and sup plied with Motor circuit breaker protection Oil discharge temperature control Electric resistance for heating oil sump with compressor at a stand still Reset button Water side heat exchanger Shell and tube direct expansion heat ex changer suitably dimensioned to obtain high performance Steel case with closed cell expanded elastomer anti condensation covering the shell and tube is made from copper pipes with a special section that allows high heat exchange associated to effi cient draining On request the heat ex changer can be equipped with an anti freeze electric resistance accessory to be mounted in the factory which protects the heat exchanger from ex ternal temperatures to 20 C with the aim of preventing the formation of ice in stand by mode With the unit run ning protection is assured by the ou
54. ave not been damaged Verifying the functioning of the pres sure switches Replace them if they malfunction Checking the state of deposits on the dehydrator filter if this is the case replace the filter 25 1 4 Mechanical checks Checkingthe tightness of the screws the compressors and the electrical box as well as the exterior panelling of the unit Insufficient fastening can lead to anomalous noise and vibra tions Checkthe condition of the structure If there are any oxidised parts treat with paint suitable to eliminate or re duce oxidation Keep a maintenance log on the ma chine not supplied with the unit it is the user s responsibility that enables vou to keep track of the servicing carried out on the unit This makes it easy to organise the work appropriately and facilitates troubleshooting on the machine In the log record the date type of work carried out routine main tenance inspection or repair a description of the work any mea sures taken and so on 25 2 EXTRAORDINARY MAINTENANCE The NSBs are filled with R410A gas and are inspected at the factory Under normal conditions they do not reguire Technical Assistance related to control of refrigerant gas During time gas lea kage can be generated from the joints causing the appliance to malfunction In these cases the leakage points must be detected repaired and the gas cir cuit is to be replenished respecting the law n 5
55. connection is the same as the diameter of the eva porator output connection 324 Double pump Td v e Single pump e3 ELECTRICAL CONNECTIONS All the electrical ope rations must be car The characteristics of the electrical lines and of the For installation make reference to the wiring It is mandatory to veri fy the water tightness ried out by STAFF IN POSSESSION OF THE NECESSARY LEGAL REGUISITES suitably trained and informed on the risks related to these operations related components must be determined by STAFF QUALIFIED TO DESIGN ELECTRICAL PLANTS in compliance with the in ternational and national regulations of the place of installation of the unit and diagram supplied with the appliance The wi ring diagram and the manuals must be kept carefuly and made AVAILABLE FOR FUTU RE INTERVENTIONS ON THE UNIT of the machine before making the electrical connections lt must only be powered up after the hydraulic and electrical works have been completed in compliance with the re gulations in force at the moment of installation The NSB chillers are completely wired at the factory and only require connection to the electrical mains Please verify that the features of the mains electricity are suita ble for the absorption values indicated in the table of electrical data CHAPTER 7 ta king into consideratio
56. cor dingly in compatibility with their technical features However dangers to the user or third parties may arise as well as da mage to the appliance and other objects in the event of improper use and use not in compliance with that declared Any use not expressly indicated in this manual is not permitted and consequen tly AERMEC will not assume any respon We must remind you that the use of pro ducts that employ electrical energy and water requires that a number of essen tial safety rules be followed including O This appliance is not suitable for use by persons including children with li mited physical sensory or mental ca pacities or those lacking experience or knowledge unless they are super vised or instructed regarding the use of the appliance by a person who is responsible for their safety Children must be supervised to make sure that they do not play with the applian ce The NSB can be identified by Packing label that shows the product identification data Technical plate Positioned on the longitudinal mem ber of the electric box NOTE Tampering removal missing identifica tion plate or other does not allow the safe identification of the product and will make any installation or maintenan ce operation to be performed difficult 4 WARNINGS REGARDING THE DOCUMENTATION sibility for damage occurring owing to failure to comply with these instruc tions 1 2 PRESERVATION OF THE DO
57. ection between the same and the unit IT IS strictly prohibited to stand un derneath the unit If it is positioned in a particularly win dy zone a windbreak should be provi ded to avoid unstable operation of the DCPX device NOTE The appliance warranty does not cover the costs for ladders scaffolding or other elevation systems that may be come necessary for carrying out servi cing under warranty m The internal diameter of the lifting holes of the flange is 70 mm 20 ANTI VIBRATION MOUNTS POSITION The NSB chillers are built in mo The AVX resting points are also of the eye bolts refer to the lifting dules see figure the total heights stated here As it can be noted points chapter given in the drawings above are they do not coincide with the eye only the bases For the total mea bolts used for lifting differently to surement of the unit add the 400 some of our other machines For mm of the electric box the effective number and position POSITIONS OF HOLES FOR ANTI VIBRATION MOUNTS Single module 1251 FC 1401 FC 1601 FC 1402 FC 1602 FC SS Qm O a 365 sk 2650 265 i lt 3380 POSITIONS OF HOLES FOR ANTI VIBRATION MOUNTS Single module 1801 FC 1802 FC o 0 50 2 Be O e JO 400 365 1460 720 1460 365 00 284 O 70 EO POSITIONS OF HOLES FOR ANTI VIBRATION MOUNTS Single module 2101 FC 2401 FC 2002 FC 2202 FC 235
58. ertification 17 8 SELECTION CRITERIA The units in standard configuration ATTENTION If it is positioned in a particularly are not suitable for installation in Functioning with temperature of windy zone a windbreak should salty environments Maximum and the produced water lower than be provided to avoid unstable ope minimum limits for water flow rates 4 C is only allowed for specifically ration of the DCPX device at the exchanger are indicated by envisioned versions version Y the curves in the pressure drop dia If the machine is to be used abo grams For functioning limits please ve the limits indicated in the dia refer to the diagrams below gram please contact AEHMEC technical sales office 81 OPERATION LIMITS VERSION HIGH EFFICIENCY HIGH EFFICIENCY EXTRA NOISE VERSION IN FREECOOLING MODE Glycoled water mode functio ning only for Y versions Functioning with glycoled water and DCPX Standard functioning Functioning with DCPX External air temp db C 8 4 2 01 23 45 H 7 8 9 101112131415 Temperature of the water produced C 1601 3002 3202 3402 5003 5203 External air temp db C 6 4 2 0 1 2 3 45 6 7 8 9 101112 13 14 15 Temperature of the water produced C 8 2 DESIGN DATA DIR 97 23 CE Acceptable maximum pressure bar 22 16 5 Acceptab
59. ese components are standard but are supplied di sassembled 211 2 NSB FA FB FC FD FE FF FG FH FJ FK fig 2 SHELL AND TUBE heat exchanger Differential pressure switch Water inlet and outlet probes SIW SUW Three way valve Additional air water coil 2 expansion vessels 25 litre shut off by a gate valve Pumps 1 or 1 1 reserve switch over is manual 21 HYDRAULIC CIRCUIT Charging unit with manometer shut off by a gate valve Victaulic connection joint with ga sket to weld all these components are standard but are supplied di sassembled NOTE All hydraulic parallels in the standard version and any other set up only eva porator with pumps are the installer s responsibility 21 2 EXTERNAL HYDRAULIC CIRCUIT NOT SUPPLIED The choice and the installation of com ponents outside of the NSB is installer s responsibility He must operate accor ding to the rules of good practice and in compliance with the regulations in force in the country of destination Mi nisterial Decree 329 2004 In any case we recommend installation of the following Water filter Storage tank Flow switch Safety valve s High pressure flexible joints Air valve Manual shut off valves Manometer If they are not supplied with the ma chine Pump s Charging unit Expansion tanks NOTES The hydraulic piping for connection to the machine must be
60. iled information 24 COMMISSIONING regarding the machine functioning and of the control board please refer to the user manual After having scrupulously carried out all the controls described above the unit can be put into operation by pressing the ON button Check the operating pa rameters set set point and reset any alarms present After a few minutes the unit will begin operating 24 2 1 Cooling circuit controls Check for any refrigerant gas leaks particularly with reference to pres sure points and pressure switches vibrations during transport may have loosened connections HIGH PRESSURE PRESSURE SWITCH It stops the compressor generating the respective alarm when the delivery pressure exceeds the set point value Correct operation can be checked by closing the water intake to the conden ser and keeping the manometer under control where installed by the user or the installer as it is not supplied by the factory in the high pressure points Verify that the intervention takes place in correspondence with the calibration value ATTENTION In the event of failure to intervene at the calibration value stop the com pressor immediately and check the cause ALARM reset is manual and can only be carried out when the pres sure falls below the differential value LOW PRESSURE TRANSDUCER It sends a signal that switches off the compressor when the suction pres sure falls below the set value ATTE
61. ions the pump does not have a one way valve Fig 2 40 ee POSITION OF HYDRAULIC CONNECTIONS 22 1 SINGLE MODULE ATTACHMENTS POSITION IN Vic FO 8 5 LL eur vr H SIL ol e k K I 1350 3380 800 407 3380 OUT Vic 5 4370 NSB Freecooling 1251 NSB Freecooling 1401 1402 1 1601 1602 1 NSB Freecooling 1801 1802 1 NSB Freecooling NSB Freecooling C 2101 2401 2202 1 2352 1 2502 1 2652 1 2802 1 5350 Two circuit models with 1 evaporator built on a single modu
62. le maximum calibration c 120 55 Acceptable minimum temperature c 10 10 9 COEFFICIENT FACTORS 93 COOLING CAPACITY AND INPUT POWER 9 2 HIGH EFFIENCY VERSIONS Ca 150 T 140 Y VERSION Al c The cooling capacity efficiency and gt 48 C 7 o ve 3B ME A 45 C 40 C Y electrical input power in conditions 120 T 2 differing from normal conditions are 110 1 35 C E obtained by multiplying the nominal 10 E TM R 30 C 2 values Pf Pa by the respective coef 1 250 ficients factors Cf Ca 090 E The following diagrams show how to 080 20 C 2 obtain coefficients factors to use for l appliances in their various versions in 0 70 cooling mode external air tempera 060 i ture to which reference is made is 050 shown in correspondence to each i curve 0 40 i 6 5 4 3 2 1 0 1 2 34 5 6 78 91011121314 15 16 cf 150 20 C Fiore gt 140 Y VERSION sp Wc Cf Coefficients factors of the cool 110 S ing capacity 100 Eee eat el a AO A I L E 1 9 Ca Coefficients factors of the 0 90 1 0 input power 0 80 48 C NOTE 070 FOR Y VERSIONS With temperatures 0 60 below 4 C please contact the com 050 i any i pany 0 40 A TNS 6 5 4 3 2 1 0 1 2345678 91011121314 15 16 At
63. ls on the unit without voltage Check that the main power cables are suitably sized able to support the overall absorption of the unit and that the unit has been appropriately earthed Check that all the electrical connec tions have been made correctly and all the terminals adequately tighte ned 244 2 Electrical controls of the live unit The following operations are to be car ried out when the unit is live Useatesterto verify that the value of the power supply voltage is equal to 230V 400V 10 ACCORDING TO THE POWER SUPPLY OF THE UNIT Check that the connections made by the installer comply with the wiring diagrams on the machine Supply power to the unit by turning the main switch to the ON position The display will come on a few secon ds after voltage has been supplied check that the operating status is at OFF 244 3 Hydraulic circuit controls Check that the system has been wa shed and the water used drained out before the unit was connected to the system Check that all the hydraulic connec tions have been made correctly and that the indications on the rating pla tes have been followed Check that the hydraulic system is filled and pressurised and also make sure that no air is present if so ble ed it Check to make sure that any shut off valves present on the system are correctly opened 24 2 COMMISSIONING NOTE For the setting of the operating para meters and for deta
64. n Two module connections position Three module connections position sss Versions with pump connections esee Electric connections Electric lines and data Remote controls connection ss Connection to the mains electricity power supply Electrical data COMMISSIONING nai 47 Preparation for commissioning e 47 Commissioning System discharge Maintenance PORN UU eee neon eee eee nove 48 Warnings regarding maintenance se 48 Extraordinary maintenance serene 48 Disposal Disconnecting the unit Dismantling and Disposal ee 49 IMPROPER USO iii an 49 Important safety information see 49 To install the appliance please comply with the warnings regarding safety contained in these instructions Moving parts hazard High temperature hazard gt gt Voltage hazard Danger disconnect voltage Generic danger Useful information and warnings AERMEC SpA 137040 Bevilacqua VR Italia Via Roma 44 Tel 39 0442 633111 per il clima Telefax 0442 93730 39 0442 93566 wwwaermeccom info aermeccom SERIAL NUMBER EC DECLARATION OF CONFORMITY We the undersigned hereby declare under our own responsibility that the assembly in question defi
65. n any other machines operating at the same time 23 1 ELECTRICAL CABLES NOTE The cross sections of the cables stated in Table 23 4 are recommended for a maxi mum length of 50 m For longer lengths the PLANT ENGINEER is responsible for the power supply line sizing and the earth con nection according to the length the type of cable the absorption of the unit the physi cal location and the environmental temperature 23 2 REMOTE CONTROLS CONNECTION Do not exceed the allowed maximum distance which varies according to the type of accessory PRV 150mt Place cables away from power cables or cables with diverse voltage that emit electromagnetic interference Avoid placing the cable in the vicinity of appliances that can create electroma gnetic interference The shield should be connected to earth without interference The entire length of the cable must be shielded For further information please refer to instructions for the accessory 23 3 CONNECTION TO THE MAINS ELECTRICITY POWER SUPPLY Make sure that the line isolating Switch is open padlocked and with sign Protect cables with fairlead of sui table length Before powering the unit make sure that all protections removed during installation have been re positioned NOTE Check the tightness of all the terminals of the power conductors on commissioning and after 30 days from start
66. n tempe rature 24 3 SYSTEM DISCHARGE It is recommended that the system is emptied before leaving switched off for long breaks or for unit maintenance that advise discharge Before beginning discharge place the master switch at OFF Check that water loading re fill tap is closed Open the discharge tap not supplied USER S RESPONSIBILITY an all of the plant vent valves and relative ter minals ATTENTION If Glycol is added to the unit it must not be dumped as it is a pollutant It should be collected and re used if possible Use of heating resistors of the ex changer ACCESSORY In this case the resistances must always be supplied with electrical power for the entire period of possi ble freezing machine in stand by Circuit with glycol Functioning with glycoled water with 8 percentage of glycol chosen ba 47 48 sed on the minimum outdoor tem perature expected In this case you must take into account the different NOTE All routine and extraordinary mainte nance operations must be carried out exclusively by qualified staff Before starting any servicing opera tion or cleaning be sure to disconnect the power supply to the unit 2543 WARNINGS REGARDING MAINTENANCE Inspection maintenance and even tual repair work must be carried out only by a legally gualified techni cian Lack of control maintenance can cause injury damage to persons or objects Maintenance provides
67. ned as follows NAME NSB TYPE FREECOOLING CHILLER MODEL To which this declaration refers complies with the following harmonised standards CEI EN 60335 2 40 Safety standard regarding electrical heat pumps air conditioners and dehumidifiers CEI EN 61000 6 1 CEI EN 61000 6 3 CEI EN 61000 6 2 CEI EN 61000 6 4 Immunity and electromagnetic emissions for residential environments Immunity and electromagnetic emissions for industrial environments EN378 Refrigerating system and heat pumps Safety and environmental requirements UNI EN 12735 Seamless round copper pipes for air conditioning and cooling UNI EN 14276 Pressurised equipment for cooling systems and heat pumps Therefore complying with the essential requirements of the following directives LVD Directive 2006 95 CE Electromagnetic Compatibility Directive 2004 108 CE Machinery Directive 98 37 CE PED Directive regarding pressurised devices 97 23 CE The product in agreement with Directive 97 23 CE satisfies the Total quality Guarantee procedure form H with certificate n 06 270 QT3664 Rev 3 issued by the notified body n 1131 CEC via Pisacane 46 Legnano MI Italy Bevilacqua 14 12 2007 Marketing Manager Signature qa 1 1 USE IN COMPLIANCE WITH DESTINATION The AERMEC NSB chillers are built in compliance with Technical Standards and the acknowledged technical safety regula tions These appliances are designed and built for cooling and must be used ac
68. ngth mm 3780 3780 3780 4770 5750 5750 3780 3780 4770 5750 5750 empty WEIGHT kg 3760 3770 3840 5000 5950 5980 4010 4030 4730 5740 5790 PUMPS FA FC FE FG FJ Input power kw 4 55 75 92 11 NOTE Current absorbed A 55 75 10 125 15 Pf Cooling capacity Weight kg 108 117 121 140 148 Pa Input power DATA DECLARED ACCORDING TO EN14511 2004 Frecooling vity factor Q 2 in compliance with ISO 3744 cooling Input water temperature 15 C SOUND POWER Aermec determines the Input water temperature 12 C External air temperature 2 sound power value on the basis of measure Produced water temperature 7C Glycol 0 ments made in compliance with ISO 9614 2 External air temperature 35 C Standards with respect to the requisites At 5k SOUND PRESSURE measured in free field implemented by EUROVENT certification conditions at a distance of 10 mt with directi 15 16 75 NSB 2352E 4502E LOW NOISE HIGH EFFICIENCY EXECUTION AND IN FREECOOLING MODE COOLING 2352E 2502E 2652E 2802E 3002E 3202E 3402E 3602E 3902E 4202E 4502E Cooling capacity W 457 475 514 554 604 645 694 744 787 843 887 Total input power W 179 191 203 214 22
69. noise reduction by means of Anoptimised compressor cover using high density material without lead that allows to reduce vibrations even further only Anti vibration mounts in AV rubber for compressors in order to reduce their vibrations so as to prevent damage caused to 1 the pipes and use of flexible joints pip Isolation of the larger pipes to reduce the typical noise of the gas Isolation in the most critical points E E E E E E E E E E E E E E E E AVX Spring anti vibration mounts 501 501 501 506 512 512 501 501 505 511 511 511 511 511 511 508 PRV Allows to control the chiller at a distance ROMEO The ROMEO device allows the remote control of the chiller from a mobile phone with WAP browser It also allows to send alarm or pre alarm SMS up to threes GSM mobile phones even if they do not have WAP browser The AER485 is included in the kit The AER485P2 accessory must be added to this kit RIF Connected in parallel to the motor it allows a reduction of the input current 400v 3 1 201 241 301 301 301 301 371 411 161X2 161X2 201X2 241X2 301X2 301X2 301X2 301X2 500Hz 241 301 MULTICHIL Control system for control switch on and switch off of the individual chillers in a plant in where multiple units are installed in LER parallel It is possible to choose from several command logics sequential homogeneous combi The accessory is supplied in an IP65 rated box KRS 4 Heat exchangers electric resistance for outdoor tem
70. om 4 to 20 mA External air temperature probe Always Working function In the case of critical conditions e g an environmental temperature that is too high the machine does not stop but can adjust itself and supply the maximum power in those conditions Self adapting Switching Hysteresis work differential to always ensure the correct functioning times of the compressors even in plants with low water content or insufficient capacities This system decreases wear of the compressors AFFP Anti Freezing Fan Protection system that periodically switches the fans on when external temperatures are very low PDC Pull Down Control system to prevent the activation of power steps when the temperature of the water quickly approaches the set point It optimises machine functioning when working normally and in the presence of load variations thus ensuring the best efficiency in all conditions For further information please refer to user manual 10 6 ACCESSORIES 1251 1401 1601 1801 2101 2401 1402 1602 1802 2002 2202 2352 2502 2652 2802 3002 AER485P2 This accessory allows connection of the unit to BMS supervising systems with RS485 electric standard and MODBUS proto col AK AK Acoustic kit E versions This accessory allows further
71. peratures to 20 C 0 4 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5x2 GP lt protects the external coil from accidental blows and prevents access to the area below where the compressors and cooling 1 circuit are housed 300M 300M 300M 400M 500M 500M 300B 300B 400B 500B 500B 500B 500B 500B 500B 300Mx2 6 6 1 1 Accessories only applica 3 50Hz power supply ble in the factory KRS heat exchangers electric resistance AK Acoustic kit GP Protection Grid RIF Re phasers available only with 400V AER485P2 This accessory allows connection of the unit to BMS supervising systems with RS485 electric standard and MODBUS proto col AK AK Acoustic kit E versions This accessory allows further noise reduction by means of Anoptimised compressor cover using high density material without lead that allows to reduce vibrations even further only Antivibration mounts in AV rubber for compressors in order to reduce their vibrations so as to prevent damage caused to 1 the pipes and use of flexible joints Isolation of the larger pipes to reduce the typical noise of the gas Isolation in the most critical points E E E E E E E E E E E E E E E E AVX Spring anti vibration mounts 507 513 516 518 518 521 521 517 515 524 525 525 527 527 580 530 PRV Allows
72. ppliance when you are barefoot and with parts of the body that are wet or damp It is prohibited to open the doors to access the internal parts of the ap pliance without first having first po sitioned the system master switch at off It is prohibited to disperse abandon or leave the packing materials within the reach of children as they are a potential source of danger 3 PRODUCT IDENTIFICATION PACKING LABEL Se l TECHNICAL PLATE FFI Air cooled liquid chillers with axial fans for outdoor installation IP24 protection ra ting They have one or more cooling cir cuits The evaporators are the dry expan sion shell and tube type The entire range has up to three twin screw compressors The new NSB A range is characterised by high efficiency values EER also thanks to the use of R134a refrigerant which allows to obtain much higher efficiency than equivalent products functioning with R407C This result is also fruit of an accurate stu dy and dimensioning of all internal com ponents in order to make the most of the features of the R134a refrigerant gas PARTICULAR attention has been paid to the dimensioning of the heat exchangers compressors and fans All units are inspected and delivered com plete with refrigerant and oil load only hydraulic and electrical connections must be made on site 4 3 1 Configurer 4 DESCRIPTION OF THE UNIT 41 AVAILABLE MODELS COOLING ONLY maximum
73. rate m3 h Example of choice 400 kPa 350 300 250 150 100 20 30 40 50 60 70 80 90 100 110 20 15 10 HH pg oo Pa BB 5 I PG ES 20 30 40 50 60 70 80 90 100 110 53 Water flow rate m3 h Sound power Aermec determines sound power values in agreement with the 9614 Standard in compliance with that requested by Eurovent certification Sound Pressure Sound pressure measured in free field con ditions with reflective surface directivity factor 3 2 at 10mt from external surface of unit in compliance with ISO 3744 regu lations KEY Working conditions Input water temperature 12 C Produced water temperature 7 C External air temperature 35 C NOTE The NSB E cannot be silenced in freeco oling functioning mode because the fans work at maximum speed Therefore for noise data refer to A ver sions 13 SOUND DATA Total noise levels Octave band Hz Pressure 125 250 500 1000 2000 4000 8000 AFC Power dB A dB dB A at a Sound power for band central frequency dB 1251 94 0 620 780 912 884 896 899 873 818 735 1401 95 0 63 0 79 0 94 90 9 919 91 3 874 804 720 1601 970 650 810 95 3 92 3 9
74. re drops of the following are considered e Evaporator e Three way valve Additional air water coil 0 50000 100000 150000 200000 e Pipe turns Water capacity l h kPa 700 600 SP Rd vi S K A SPI lt 500 Se KACAR DZY ANDAS 400 ASS v 300 S 200 100 0 0 100000 200000 300000 400000 500000 600000 Water capacity l h The table shows corrections to apply to the pressure drops for on variation of the average water temperature Average water temperature C he maricon ERT MIENITIV d Multiplicative coefficients g with low external temperatures and 2 Minimum water content in the KEY low pressure case of process or functioning 1 Minimum water content for air con applications with low external ditioning applications KEY temperatures and low pressure 8 Minimum water content in the case 1 Minimum water content for air of process or functioning applications conditioning applications Minimum Minimum Minimum water m9 1 8 water m 1 8 water m 1 2 content content content 1251 m3 19 39 2352 m9 36 73 4802 m3 75 149 1401 m3 55 44 2502 m3 38 76 5003 m3 78 156 1601 m3 24 49 2652 m3 40 81 5203 m3
75. rnal temperature line or the water produced line and the relative curves A point from which the vertical line will pass is obtained and this will distinguish both glycol percentage and relative correction coefficients 104 HOW TO INTERPRET THE GLYCOL CURVES The curves shown in the diagram summa rise a significant number of data each of which is represented by a specific curve In order to use these curves correctly it is first necessary to make some initial reflec tions f you require to calculate glycol per centage based on the temperature of the external air enter from the left axis of the graph and draw a vertical line which in turn will intercept all the remai ning curves the points obtained from the upper curves show the coefficients for cooling capacity and input power for flow rates and pressure drops remem ber that these coefficients still need to be multiplied by the nominal value of the size examined whilst the lower axis re commends the glycol percentage value necessary on the basis of the tempera ture of the external air considered f you require to calculate glycol per centage based on the temperature of water produced enter from the right axis of the graph and draw a vertical line which in turn will intercept all the remaining curves the points obtained from the upper curves show the coef 70 ETHYLENE GLYCOL MIX FcGDpl FcGDpl IFcGDpF c FoGDpF d
76. s the complete control of the appliance For a more detailed descrip tion refer to the user manual Fuses and magnet circuit brea kers for protection of the com pressors to be specified on orde ring Magnet circuit breakers for fan protection Auxiliary magnet circuit breaker protection 5 6 ELECTRONIC ADJUSTMENT The electronic adjustment of NSB chil lers is made up from a control board for each compressor connected to each other in a network and a control panel with display In the case of multi compressor models the board that controls compressor n 1 is the MA STER board while the others are SLA VE Transducers loads and alarms re lative to the compressor that controls are connected on each board while the general machine ones are only connec ted onto the master board Microprocessor remote ON OFF with external contact without voltage Multilanguage menu Phases sequence control Independent control of the individual compressors Amperometric transformer Cumulative faults block signal Historical alarms function Daily weekly programming Inlet outlet water temperature display Alarms display Integral proportional adjustment on the outlet water temperature Programmable timer function Function with double calibration point linked to an external contact Fan adjustment Can be interfaced with Modbus protocol accessory Pump s control Compressors rotation management Analogue input fr
77. t exchangers use relative dirtying factors Tab 9 6 2 9 6 COEFFICIENT FACTOR VERSIONS WITH FREECOOLING ONLY The maximum cooling capacity yielded when functioning is completely in fre ecooling i e all compressors are off is obtained by multiplying the freecooling cooling capacity value Pf given in the technical data by the respective cor rective coefficient Cfc The latter is obtained from the following diagram on the basis of the temperature of the water produced and the temperature of the external air These values are referred with fans at full revs maximum input power If the power yielded should be in excess the number of revs will be modulated KEY Cre coefficient factors of the free cooling cooling capacity Pf 15 10 Temperature of the external air Ca 150 140 Y VERSION 1 30 48 C 1 20 45 C 40 C 35 C 1 10 100 EFF 30 C 0 90 25 C 0 80 0 70 External air temperature 0 60 0 50 0 40 6 5 4 3 2 10123456 Cf 150 78 91011121314 15 16 140 Y VERSION 20 C gt 25 C 130 30 C 35 C 40 C 1 20 1 10 0 90 gt 45 C 48 C 0 80 External air temperature 0 70 0 60 0 50 0 40 6 5 4 3 2 101 23456 78 910
78. t kg 108 117 121 140 148 Pa Input power DATA DECLARED ACCORDING TO EN 14511 2004 recooling vity factor G 2 in compliance with ISO 3744 cooling Input water temperature 15 C SOUND POWER Aermec determines the Input water temperature 12 C External air temperature 2 sound power value on the basis of measure Produced water temperature 70 Glycol 0 ments made in compliance with ISO 9614 2 External air temperature 35 CT Standards with respect to the requisites At 5k SOUND PRESSURE measured in free field implemented by EUROVENT certification conditions at a distance of 10 mt with directi 78 NSB 4802E 7203E LOW NOISE HIGH EFFICIENCY EXECUTION AND IN FREECOOLING MODE COOLING 4802E 5003E 5203E 5403E 5703E 6003E 6303E 6603E 6903E 7203E Cooling capacity W 943 1017 1066 1116 1159 1216 1259 1315 1358 1414 Total input power W 369 381 413 445 457 479 492 514 527 549 Evaporator water flow rate Yh 162160 174890 183430 191980 199380 209070 216470 226160 233560 243250 Evaporator pressure drop Pa 31 37 36 35 31 35 31 35 28 31 FREECOOLING Cooling capacity W 979 985 1079 1174 1249 1272 1347 1371 1446 1469 Total input power W 40 40 44 48 52 52 56
79. tection Grid RIF He phasers available only with 400V 11 12 7 TECHNICAL DATA 71 NSB 1251A 2202A HIGH EFFICIENCY AND IN FREECOOLING MODE COOLING 1251A 1401A 1601A 1801A 2101A 2401A 1402A 1602A 1802A 2002A 2202A Cooling capacity W 272 304 338 408 465 518 285 324 377 429 480 Total input power W g1 104 115 144 157 177 103 119 133 153 168 Evaporator water flow rate h 46830 52360 58070 70250 79960 89100 49040 55670 64810 73720 82630 Evaporator pressure drop Pa 48 30 36 43 32 37 27 32 43 48 34 FREECOOLING Cooling capacity W 280 291 301 4038 486 503 285 297 393 452 491 Total input power W 12 12 12 16 20 20 12 12 16 20 20 Total pressure drop Pa 121 125 108 153 135 176 118 102 142 143 152 EFFICIENCY INDEX EER A W W 2 98 2 92 2 94 2 84 2 97 2 92 2 77 2 73 2 82 2 81 2 86 FC W W 23 33 2427 2510 25 21 24 29 2517 23 73 24 76 2456 22 59 24 56 ESEER A 4 22 4 24 4 30 4 24 4 20 4 28 4 20 4 22 4 20 4 23 4 24 ELECTRICAL DATA Power supply V 400V 3 50Hz Ras PR A A 160 180 196 238 267 299 179 205 225 261 288 FC A 24 2
80. ter temperature 15 C SOUND POWER Aermec determines the Input water temperature 12 C External air temperature 2 sound power value on the basis of measure Produced water temperature 7C Glycol 0 ments made in compliance with ISO 9614 2 External air temperature 35 C Standards with respect to the requisites At 5k SOUND PRESSURE measured in free field implemented by EUROVENT certification conditions at a distance of 10 mt with directi 13 14 7 3 NSB 4802A 7203A HIGH EFFICIENCY AND IN FREECOOLING MODE COOLING 4802A 5003A 5203A 5403A 5703A 6003A 6303A 6603A 6903A 7203A Cooling capacity W 1036 1084 1154 1225 1282 1335 1391 1444 1501 1554 Total input power W 354 374 403 432 444 465 478 498 511 532 Evaporator water flow rate Lh 178200 186390 198570 210750 220460 229600 239310 248450 258160 267300 Evaporator pressure drop Pa 37 42 42 43 38 42 38 42 35 37 FREECOOLING Cooling capacity W 1007 1006 1108 1210 1293 1310 1393 1410 1493 1510 Total input power W 40 40 44 48 52 52 56 56 60 60 Total pressure drop Pa 176 123 138 153 147 161 155 149 163 176 EFFIC
81. the evaporator use Tab 9 2 1 to obtain the coefficients factors of the Temperature of evaporator produced water At 5 C cooling capacity and input power To consider dirty heat exchangers use relative dirtying factors Tab 9 2 2 9 2 1 coefficient factors at At different from Chiller nominal 3 5 5 8 10 Cooling capacity coefficient factors 0 99 1 1 02 1 03 Input power coefficient factors 0 99 1 1 01 1 02 9 2 2 Deposit factors K m2 W 0 00005 0 0001 0 0002 Cooling capacity coefficient factors 1 098 094 Input power coefficient factors 1 0 98 0 95 20 9 5 HIGH EFFICIENCY VERSIONS IN LOW NOISE VERSION The cooling capacity efficiency and electrical input power in conditions differing from normal conditions are obtained by multiplying the nominal values Pf Pa by the respective cor rective coefficients Cf Ca The following diagrams show how to obtain corrective coefficients to use for appliances in their various versions in cooling mode external air tempe rature to which reference is made is shown in correspondence to each curve KEY Cf Corrective coefficient of the cooling capacity Ca Corrective coefficient of the input power NOTE FOR Y VERSIONS With temperatures below 4 C please contact the company FOR AT DIFFERENT TO 5 C At the evaporator use Tab 9 6 1 to obtain the corrective factors of the cooling capacity and input power To consider dirty hea
82. tioning in the case of anomalous work pressures High pressure transducer It allows to view the compressor flow pressure value on the microprocessor board display one per circuit Positio ned on the high pressure side of the cooling circuit it stops compressor functioning in the case of anomalous work pressures Double high pressure switch manual tool Factory calibrated placed on the high pressure side of the cooling circuit it stops compressor functioning in the case of abnormal work pressures Cooling circuit safety valve HP LP Calibrated at 22 bar HP 16 5 LP they intervene by discharging the over pressure in the case of anomalous pressures 5 5 ELECTRIC COMPONENTS Electric control board It contains the power section and the management of controls and safety devices It is in compliance with IEC 60204 1 Standards and the Directives regarding Electromagnetic Compatibi lity EMC 89 336 EEC and 92 31 EEC Moreover all cables are numbe red for immediate recognition of all electric components NOTE Moreover all cables are numbered for immediate recognition of all electric components Door lock isolating switch IT is possible to access the electric con trol board by removing the voltage on the opening lever of the control board itself This lever can be blocked with one or more padlocks during maintenance interventions in order to prevent unde sired machine energising Control keyboard It allow
83. tlet water temperature probe Dry fit With removable cartridge it can wi thhold the impurities and eventual tra ces of humidity in the cooling circuit Liquid indicator Used to check the refrigerant gas load and the eventual presence of humidity in the cooling circuit Thermostatic valve Mechanical valve with external equa liser positioned at evaporator output modulates the flow of gas to the eva porator depending on the heat load in a way to ensure correct heating of the intake gas Liquid and pressing line taps They allow to shut off the refrigerant in the case of extraordinary maintenance Silencer Positioned on the compressor flow in the E version It contributes to attenua ting noise emission Solenoid valve The valve closes when the compressor switches off blocking the flow of refri gerant gas to the evaporator 5 2 FRAME AND FANS Ventilation Unit Helical type balanced statically and dy namically The electric fans are protec ted electrically by magnet circuit brea kers and mechanically by anti intrusion metal grids according to the IEC EN 60335 2 40 Standard Support structure Made in hot galvanised sheet steel with suitable thickness and painted with po lyester powders able to resist atmos pheric agents through time Acoustic protection cover All NSB versions are per standard made up from a thick sheet steel com partment and internally covered with sound absorbing material It allows
84. to reduce the sound power level emitted by the unit and also protects the com pressors from atmospheric agents 5 3 HYDRAULIC COMPONENTS Circulation pump s Whilst working with pump components it offers a static pressure that is useful for beating system pressure drops In the presence of a second pump re serve switch over takes place manual ly by acting in the selector switch posi tioned inside the electric control board Filling unit only in versions with pump It is supplied with a manometer for di splay of the system pressure Expansion vessels only in versions with pump Two 25 litre membrane vessels with nitrogen pre load Three way valve Present on the water side of the fre ecooling circuit it is an electric servo controlled ON OFF diverter valve Freecooling air water exchanger Passed over by water in the freecooling functioning mode Made with copper pipes and aluminium louvered fins blocked by mechanical ex pansion of the pipes It is the high efficiency type 5 4 SAFETY AND CONTROL COMPONENTS IP54 differential pressure switch in stalled in series It has the task of controlling that there is correct water circulation If this is not the case it blocks the unit Low pressure transducer It allows to view the compressor intake pressure value on the microprocessor board display one per circuit Positio ned on the low pressure side of the cooling circuit it stops compressor func
85. to control the chiller at a distance ROMEO The ROMEO device allows the remote control of the chiller from a mobile phone with WAP browser It also allows to send alarm or pre alarm SMS up to threes GSM mobile phones even if they do not have WAP browser The AER485 is included in the kit The AER485P2 accessory must be added to this kit RIF Connected in parallel to the motor it allows a reduction of the input current AOON 5 301 301 371 3012 301x2 90 api 301 500Hz 301X2 301X2 301X2 411X2 301X3 301X3 301X3 371 411X3 371 411 411 371 411 411 411X2 411X2 MULTICHIL Control system for control switch on and switch off of the individual chillers in a plant in where multiple units are installed in LER parallel It is possible to choose from several command logics sequential homogeneous combi The accessory is supplied in an IP65 rated box KRS 2 Heat exchangers electric resistance for outdoor temperatures to 20 C 0 5X2 5X2 5X2 5X2 5X2 5X2 5X2 5X3 5X3 5X3 5X3 5X3 5X3 5X3 5X3 5X3 GP lt protects the external coil from accidental blows and prevents access to the area below where the compressors and cooling 1 circuit are housed 300M 400M 400M 300Mx2 300M 400Mx2 400Mxe 400M 400M 300Mx2 400Mx2 500Mx2 500Mx2 400Mx3 500Mx3 500Mx3 400M 500M 500M 400M 400Mx2 500M 500M 500Mxe 500Mx2 6 6 2 1 Accessories only applica 3 50Hz power supply ble in the factory KRS heat exchangers electric resistance AK Acoustic kit GP Pro
86. up Succes sively check the tightness of all the power terminals every six months Loose termi nals can cause overheating of the cables and components NOTE Models 5003 5203 5403 5703 6003 6303 6603 6903 7203 have two electric boxes one in front of the unit and one on the compressors side under the louvered exchange coll Connect the power supplies and make the earth connection on site fig 3 Moreover the models from 5703 to 7203 are delivered separately On installation the two units must be put into the network by connecting the two PCO2 MASTER SLAVE 7 positioned on the electric box of the two module to the SLAVE 2 in the electric box of the single module see figure only using a 45 46 23 4 ELECTRICAL DATA shielded cable AWG20 22 made up from a twisted pair and one shield for standard RS485 communication The boards must be connected in parallel making reference to clamp J11 He spect the polarities RX TX of one board must be connected to RX TX of the other board the same thing for BX TX MASTER BRT POWER SUPPLY E E Mi EARTH POWER SUPPLY

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