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Aermec NRL Free Cooling 750

1. 13 s 1 2 3 E 1 40 C o 3 Qo e JE M z VUES be mew TUYA T 9 44 C D 08 t I g 07 i a 0 6 I 05 I 1 04 E 4 2 o 2 4 6 8 10 12 14 16 18 Waterproduced C CHILLER FUNCTIONING COOLING MODE INPUT POWER CORRECTIVE COEFACIENTS 14 I T 13 I 44c 12 I 40 C at E 1 1 momen 30 C 3 3 25 C B U 2c 0 3 Q o D 3 g 0 8 3 0 7 0 6 6 4 2 0 2 4 6 8 Waterproduced C 10 12 14 16 9 FREE COOLING FUNCTIONING CORRECTIVE FACTORS The maximum cooling capacity yield ed when functioning is completely in free cooling mode i e all compres sors are off is obtained by multiplying the cooling capacity nominal value Pf given in the Technical Data by the respective corrective coefficient which is obtained from the following diagram on the basis of the tempera ture of the water produced and the temperature of the extemal air These values refer to the fans in full rev conditions maximum input pow er If the power yielded should result in excess a modulation will intervene onthe number of revs 9 1 FORATDIFFERENTTO NOMINAL For At different from 5 C at evapora toruse Tab 9 2 1 to obtain correc tion factors of cooling power and input power To be able to consider exchanger unclea
2. Watertemp C Conective Recommended Glycoled water max min coefficients conditions 10 40 2 0 507 1 10 60 2 0 686 2 10 85 2 0 809 3 20 40 6 0 434 1 20 60 6 0 604 2 20 85 6 0 729 3 35 40 6 0 393 1 35 60 6 0 555 2 35 85 6 0 677 3 Recommended operational conditions 1 Cooling Max watertemp 40 C min watertemp 4 C 2 Heating hot air pump Max watertemp 60 C min watertemp 4 C 3 Heating boiler Max watertemp 85 C min watertemp 4 C H max 55 m e o T u 0 x A u ce B a WH H 12 25m E Rd H u g a H 0m 3 T 6 E c E 4 a 9 8 8 u ce S a KEY Hmin 2 1 Check that highest installation 2 Ensure that lowest installation is not higherthan 55 metres can withstand global pressure in that position Minimum water content in the case of application of process or functioning with low extemal temperatures and low load Regulation on the outlet watertemperature project At lessthan 5 C INRLPY 0511 4086911 03 23 14 PARTIALISATIONS de abaci Power steps Versions 1 2 3 4 5 6 NRL 750 27 53 77 100 NRL 800 27 53 TI 100 NRL 900 27 53 77 100 NRL 1000 27 53 TI 100 NRL 1250 27 53 TI 100 NRL 1400
3. B 0 I oj Jo de IN 4 o ale O YI HX T PR OUT 4 1300 1500 L 3000 2200 32 INRLPY 0511 4086911_03 ATIENTION The hydraulic attachments are the Victalic type 19 1 7 NRL 1250 1400 1500 P3 P4 FC A E o mi r NI N Y ES EN e o w E EE oi O Ol o e Ni CN S 100 e eo CN Cv ATIENTION The hydraulic attachments are the Victalic type INRLPY 0511 4086911 03 33 19 1 8 NRL 1650 1800 P3 P4 FC A E ESTAS SS AAT OS C9 2200 SALSA SA 990 901 LUE ATIENTION The hydraulic attachments are the Victalic type 19 1 9 NRL 800 900 1000 03 04 FC A E 100 2800 4 1 100 100 1400 1400 100 2100 2450 PM
4. The support surface must be capable of supporting the unit weight The safety differencesbetween the unit and otherappliances or structures must be scrupulously respected so that the inlet and outlet air from the fans is free to circulate The unit must be installed by an enabled technician in compli ance with the national legisla tion in force in the country of desti nation respecting the minimum technical spacesin orderto allow maintenance 21 POSITIONING The machine is delivered from the factory wrapped in estincoil Before handling the unit verify the lifting capacity of the machines used After removal of packaging move MINIMUM TEC HNICAL mm FOR THE INSTALLER AS The unit must be installed by a qualified and suitably trained technician in com O pliance with the national legisation in force in the country of destination Ministe rial Decree 329 2004 these instructions AERMEC will not assume any responsibility fordamage due to failure to follow camied out Before beginning any operation READ THESE INSTRUC TIONS CAREFULLY AND CARRY OUT THE SAFETY CHECKS TO REDUCE ALL RISK OF DANGER TO A MINIMUM Allthe staff involved must have thorough knowledge of the operationsand any dangers that may arise at the moment in which the installation operations are ment of apparatus must be carried out by qualified and adequately equipped personnel To handle the
5. py gt bd p 1500 100 2800 100 100 o 0 2000 1 Ki Hole forelectrical powersupply 2200 3400 ATIENTION The hydraulic attachments are the Victalic type INRLPY 0511 4086911 03 29 19 1 3 NRL 1250 1400 1500 FC A E 100 1825 1825 100 op 2 e O 18 s 95 R N e hx T Hole for electrical power supply se isos e LE 4 e s 5 T 100 1825 1825 100 2200 ATIENTION The hydraulic attachments are the Victalic type 30 INRLPY 0511 4086911 03 19 1 4 NRL 1650 1800 FC A E 2450 q eee A eee er _ _ _ _ o 202 rr PNE 0 3 el P c E DL pr EOS CARS 2675 ATIENTION The hydraulic attachments are the Victalic type INRLPY 0511 4086911 03 31 19 1 6 NRL 800 900 1000 P3 P4 FC A E 100 100 2000 100 2800 100 7 2 EAE N
6. 16 17 18 19 19 1 20 21 22 22 1 22 2 22 3 22 4 23 23 1 23 2 23 3 23 4 24 24 1 24 2 24 3 25 25 1 25 2 25 3 25 4 25 5 25 6 26 27 28 Desuperheater Pressure TN CANALE AA SOUNG daria 25 Calibration of safety and control para meters 26 Dimensions irent d ERR s shani 21 Dimension tables and hydraulic fitting positions 27 Percentage weight distribution on fc a e supports 38 Selection and place of installation 39 Potosi 39 Example of hydraulic circuits 40 Extemal hydraulic circuit 2 an 41 System loading seen 41 Emptying the system Ne 41 Gr3 control board aa aaa ana nana ann serave ce neve re eee ee rene rana 42 Electric connections rere veze coronan cercanos 43 Recommended electric cable section 43 Connection to the power supply network 43 Electric powerconnection esses 43 Auxiliary connections underthe responsibility of the Uss installer iere truces 43 Control and commissoning usse 45 Preparation for commissioning 45 Machine commissioning eeeseeeee 45 Season C ha NGE O VET pp 45 Func tioning fea LUTE S pp 46 Set point in cooling mode pp 46 Set point in heating mode sss 46 C
7. lg A Si g cuna 2 BT X j AA 114 3 W OUT 0 g 3000 2200 ATIENTION 3400 The hydraulic attachments are the Victalic type INRLPY 0511 4086911 03 35 19 1 10 NRL 1250 1400 1500 03 04 FC A E 100 1825 1825 100 100 2000 100 2200 ATIENTION The hydraulic attachments are the Victalic type 36 INRLPY 0511 4086911 03 19 1 11 NRL1650 1800 03 04 FC A E 2450 2190 400 1915 720 1915 400 F1 gt F1 2000 8 400 1915 720 1915 409 2200 ATIENTION The hydraulic attachments are the Victalic type INRLPY 0511 4086911 03 37 19 1 PERCENTAGE WEIGHT DISTRIBUTION ON FC A E SUPPORTS i i i 0 4 4 1 2 28 2 uus 0 001 SHTETI M 1 1 1 1
8. the fan speed control via the revs regulator device allows the NRL chillers various partialisations of the cooling capacity both in compres sors mode only and in free c ooling partial ortotal The electronic regulation with opti mised micro processorforfunction ing with free cooling controls and managesall componentsand unit functioning para meters an intemal memory recordsthe functioning conditions when an alarm condi tion arises to then show it on the display The units have protection rating of IP 24 All of the various ver sions of appliances are supplied as per standard with fansrevs number control device evaporator anti freeze electrical resistance Compressor sump resistance remote control panel water filter flow switc h PRODUCT IDENTIHCATION FUNCTIONING MODE FREE COOLING ONLY when the extemal temperature is low enough to allow cooling of the water in the free cooling coils to project temperature It isthe most economic way of using the unit Only the fans work in speed modu lation mode MIXED FREE COOLING COMPRESSORS when the cooling capacity recov ered from the extemal airis not longer suffic ient to satisfy the power requested by the system the compressors function in integration with free cooling The greaterthe power recovery with free cooling the smallerthis integration COMPRESSORS ONLY when the extemal airtemperature isgreaterthan the retum tempera tur
9. 23 44 63 82 100 NRL 1500 19 37 55 71 86 100 NRL 1650 19 37 55 71 86 100 NRL 1800 19 37 55 71 86 100 L input power Power steps Versions 1 2 3 4 5 6 NRL 750 23 47 73 100 NRL 800 23 47 73 100 NRL 900 23 47 73 100 NRL 1000 23 47 73 100 NRL 1250 23 47 73 100 NRL 1400 18 37 56 77 100 NRL 1500 14 29 46 63 81 100 NRL 1650 14 29 46 63 81 100 NRL 1800 14 29 46 63 81 100 KEY The performance refers to the following conditions 7 C 35 C Temperature of water produced Extemal air temperature 15 DESUPERHEATER The heating capacity obtained by the desuperheater is attained by mul tiplying the nominal value Pd given in table 15 1 1 by a relevant coeffi cient Cd The following diagrams show how to obtain corrective coefficients to use for units in their various versions in coo ling mode extemal air temperature to which reference is made is shown in corespondence to each curve In eat pump models the desuperhe ater must be shut off in heat pump mode or the warranty will be come null and void 15 1 PRESSURE DROPS The NRL models with desupemeater have 2 desuperheaters placed in parallel NOTE The features of the desuperheaters and the pressure drop curves are given below For temperature of produced water values different from 50 C multiply by corrective factor shown in figure 15 1 1 Nominal value refering to Airtemperature 35 C Wa
10. 5 5 2 a 2 5 d 42 INRLPY 0511 4086911 03 23 ELECTRIC CONNECTIONS The NRL chillers are completely wired atthe factory and only require con nection to the electrical mains down stream from a unit switch according to that envisioned by the Standardsin force on this subject in the country of insta lla tion Itisalso advised to check that the electrical mains features are suitable forthe absorption values indicated in the electrical data table also taking into considera tion any othermachines operating atthe same time The unit is only powered when installation hasbeen completed hydraulic and electric Respect the connection indica tions of the phase and earth wires The powersupply line must have a relevant protection mounted upstrea m against short circuits and dispersions to earth which isolates the system with respect to other utilities The voltage must be within a toler ance of 0 of the nominal power supply voltage of the machine for unbalanced three phase unit max 3 between the phases When everthese parametersare not respected contact the electric energy public body Forelectric connections use the cables with double isolation according to the Standardsin force on this subject in the different countries The use of an omnipolarmagnet circuit breaker switch is manda tory in compliance with the IEC EN Standards contact opening at least 3 mm with suitable cut off powera
11. 5 5 6 5 6 5 6 5 8 6 8 6 8 6 12 3 12 3 Input current A 11 11 0 1 11 0 14 6 14 6 14 6 21 2 21 2 95 195 165 1 0 119 194 184 177 214 1 155 150 211 202 203 245 234 242 197 189 SOUND DATA Sound power 1 Useful static pressures KPa A 87 88 5 88 5 88 5 91 5 91 90 5 92 94 E 82 82 5 82 5 82 5 85 5 85 84 5 86 88 A 55 56 5 E 50 50 5 dBA Sound pressure 2 dBA DIMENSIONS Height Width Depth m gt m gt m gt m gt Empty weight PC NOMINAL REFERENCE CONDITIONS IN COOLING MODE 1 SOUND POWER 2 SOUND PRESSURE Waterinput temperature 15 C Aemec determines sound power values Sound pressure measured in free field condi Extemal airtemperature 2 C in agreement with the 9614 2 standard in tions with reflective surface directivity factor Nominal waterflow rate compliance with that requested by Eurovent Q2 at 10mt distance from extemal surface of Compressors off certification unit in compliance with ISO 3744 regulations INRLPY 0511 4086911 03 17 7 OPERATIONALLIMITS The units in standard configuration are not suitable for installation in salty environments Forfunctioning limits please referto the diagram 7 1 valid for At 5 C NOTE Wheneverthe unit must function out side the operational limits we recom mend contacting our tec hnical sales dept first If the unit is installed in particulary windy areas a windbreak sho
12. 68770 72330 105 110 110 123 131 117 140 145 93 99 94 106 110 94 117 120 Water flow rate Total input power kw 5 4 Total pressure drops kPa ELECTRICAL DATA Powersupply gt 400 3 50 Hz m gt Input current gt m gt H o ul Rp ul Pp ul N N N N N N w lel w O Maximum current gt 177 199 221 274 303 332 373 406 m gt Peak current 320 352 408 430 542 512 541 641 674 COMPRESSORS SCROLL Number circ uit n n A 4 2 4 2 4 2 4 2 5 2 6 2 6 2 6 2 6 2 Quantity 6 6 6 8 8 115200 114000 112800 155200 153600 80600 79800 80700 108600 109800 10 5 10 5 10 5 13 9 13 9 Airflow rate Input power N o 0 0 m pim gt gt m gt m gt Input current 22 2 22 2 22 2 29 6 29 6 Useful static pressure 1 m gt EVAPORATORS HEAT PLATE x Hyad ra ulic connections in out 202 HYDRAULIC CIRCUIT Storage tank capacity Storage tank anti freeze resistance E Expansion vessel n l 2 25 2 25 2 25 2 25 2 25 2 25 2 25 2 25 2 25 x The hydraulic attachments are the Victalic type 1 The useful static pressures referto the nominal air flow rate 1x300 2x300 16 INRLPY 0511 4086911 03 1750 800 900 1000 1250 1400 1500 1650 1800 HIGH STATIC PRESSURE CIRC ULATION PUMP A Input power Kw
13. STATIC PRESSURE CIRCULATION PUMP A Input power KW 5 5 6 5 6 5 6 5 8 6 8 6 8 6 12 3 12 3 Input current A 11 11 0 11 0 11 0 14 6 14 6 14 6 21 2 21 2 Useful static pressures KPa 177 220 210 204 242 223 224 192 182 200 233 222 223 250 255 214 206 SOUND DATA 262 EET A 87 885 885 885 T 915 91 90 5 92 94 UNE ROW E 82 82 5 82 5 82 5 85 5 85 84 5 86 88 55 dBA Sound pressure 2 dBA Height 3 3 im Width 50 Depth 3 3 Empty weight amp m gt m gt NOMINAL REFERENCE CONDITIONS IN COOLING MODE Water input temperature 12 C Outlet water temperature 7 C Extemal air temperature 35 C At 5 C 1 SO UND POWER Eurovent certification 2 SOUND PRESSURE Aermec determines sound power val Sound presure measured in free field condi ues in agreement with the 9614 2 stand tions with reflective surface directivity factor ard in compliance with that requested by Q 2 at 10mt distance from extemal surface of unit in compliance with ISO 3744 regula tions INRLPY 0511 4086911_03 15 6 2 FREECOOLING FUNCTIONING TECHNICAL DATA COOLING 750 800 900 1000 1250 1400 1500 1650 1800 Cooling capacity 7 5 7 5 7 5 36120 39390 42840 53320 57960 62610 73960 77740 33730 37110 39210 49670 53260 56850
14. Vh m gt Total pressure drops kPa m ENERGETIC INDEX ELECTRICAL DATA Powersupply Input current Peak curent COMPRESSORS SCROLL Number circuit Quantity A E A 115200 114000 112800 155200 153600 80600 79800 80700 108600 109800 10 5 10 5 10 5 13 9 13 9 Airflow rate Y o o D o Input power Input current 22 2 22 2 22 2 29 6 29 6 m gt m gt Useful static pressure 1 FANS INVERTER J m gt 200 Quantity n 3 4 4 4 6 6 6 8 8 6 mayh 56000 79600 78800 78000 115200 114000 112800 155200 153600 46500 55700 55200 55800 80600 79800 80700 108600 109800 5 7 0 7 0 7 0 10 5 10 5 10 5 13 9 13 9 3 9 14 8 14 8 14 8 22 2 22 2 22 2 29 6 29 6 m gt m gt Input power kW gt mn jm gt Input current Useful sta tic pressure 1 m gt EVAPORATORS HEATPLATE Hydraulic connections in out 12 HYDRAULIC CIRCUIT Storage tank capacity 500 700 Storage tank anti freeze danes VV 1x 300 2 x 300 2 25 2 25 2 25 2 25 2 25 2 25 2 25 2 25 2 25 Expansion vessel n l The hydraulic attachments are the Victalic type 1 The useful static pressures refer to the nominal air flow rate 14 INRLPY 0511 4086911_03 750 800 900 1000 1250 1400 1500 1650 1800 HIGH
15. give rise to values that are greatly different The sealing test or the search for leaks must only be performed using R410A refrigerant gas checking using a suitable leak detector In the cooling circuit it is prohibited to use oxygen or acetylene or other inflammable or poisonous gases because they are a caus of explo sions or intoxication We recommend to envision a machine book not supplied but the user s responsibility which allowsto keep track of the interventions perfomed on the unit In this way it will be easy to suitably organise the interventions making research and the prevention of any machine breakdownseasier Use the date to record date type of intervention made routine maintenance inspec doesnot rise above 50 Pa Connect the refrigerant gas cylin derora load cylinderto the socket on the low pressure line Load the amount of refrigerant gasindicated on the appliance features plate Aftera few hours of functioning check that the liquid indicator indicates the dry circuit dry green In the case of partial loss the circuit must be emptied completely be fore being re loaded tion orrepairs description of the intervention measures actuated ITIS forbidden to RELOAD the O circuit with a refrigerant gas different to the one indicat ed Using a different refriger ant gascan Cause serious damage to the compressor DISPOSAL Envisions that disposal of the unit is carrie
16. i i i i G 1 1 1 1 el X KE A i i G i i i x A VACUUM RUNNING PERCENTAGE OF WEIGHT DISTRIBUTION MODEL WEIGHT CENIREOFGRAVITY TOTALWEGHT CENTREOFGRAVITY SUPPORTS pa KIT Kg Xg Yg Kg Water Xg Yg 1 2 3 4 5 6 7 8 NRL750FA E 00 1889 2024 773 1920 31 2027 766 9 9 13 13 25 26 3 3 VT 23 NRL750FA E 03 2079 2116 771 2670 531 2169 761 7 7 12 13 28 29 2 2 VT 23 NRL750FA E 04 2139 2083 771 2610 531 2144 762 7 7 13 13 28 29 2 2 VT 23 NRL750FA E P3 1949 2098 772 2000 31 2100 765 8 9 12 12 26 27 3 3 VT 23 NRL750FA E P4 2009 2062 773 1980 31 2065 765 9 9 12 13 26 27 3 3 VT 23 NRL800FA E 00 2470 1399 854 2610 140 1425 867 10 7 16 5 20 1 30 9 8 6 13 296 AVX 739 NRL800FA E 03 2820 1377 971 3690 870 1365 1140 16 026 14 996 24 8 23 0 11 0 10 296 AVX 740 NRL800FA E 04 2890 1373 991 3760 870 1362 1152 16 3 14 8 25 0 22 7 11 1 10 1 AVX 740 NRL800FA E P3 2650 1360 916 2870 220 1368 952 12 6 16 6 22 0 28 996 8 6 11 296 AVX 741 NRL800FA E P4 2700 1349 933 2920 220 1358 966 13 0 16 6 22 4 28 6 8 6 10 996 AVX 741 NRL900FA E 00 2650 1434 868 2810 160 1456 887 10 4 15 4 20 8 30 89
17. machine see figure attach the lifting beltsto the relevant eye bolts as indicated in figure ATIENTION ALWAYS USE THE REL EVANTEYE BO LTS To ensure that the structure of the unit is not damaged place protec tion between the lifting belt and the unit It is strictly prohibited to stand below the unit Rememberthat whilst operational the chiller can cause vibrations therefore anti vibration mounts AVX accessories are recommend ed fixed in the holeson the base according to the assembly la yout It is mandatory to foresee to the necessary technical space in order to allow ROUTINE AND EXTRAORDI NARY MAINTENANCE interventions Fixthe unit checking that it is level Make sure thatthe hydraulic and electric part can be easily reached ATIENTION ALWAYS USE THE RELEVANT EYE BOLTS INRLPY 0511 4086911 03 39 22 HYDRAULIC CIRCUIT INDOOR NRL 00 The hydraulic circuit is made up from Water aircoil Flow meter Water filter Inlet watertemperature probe Outlet watertemperature probe Free cooling probe Plate evaporator Motorised 3 way valve Airseparator with automatic vent valve HYDRAULIC CIRCUIT INDOOR NRL P3 P4 The hydraulic circuit is made up from Water air coil Flow meter Water filter Water pump Inlet watertemperature probe Outlet watertemperature probe Free cooling probe Plate evaporator Motorised 3 wa y va lve Airseparator with a utomatic vent valve 40 INRLP
18. part of the GR3terminal board Forthe installation requirements refer only to the electrical diagram supplied with the appliance The electrical diagram along with the manuals must be kept in good condi tion and ALWAYS AVAILABLE FOR ANY FUTURE SERVICING ON THE UNIT INRLPY 0511 4086911 03 43 Earth MODEL verson EZB sec PE fa mm mm mm A NRL 750 EF AF 95 1 5 50 200 NRL 800 EF AF 95 1 5 50 200 NRL 900 EF AF 95 1 5 50 250 NRL 1000 EF AF 95 1 5 50 250 NRL 1200 EF AF 120 1 5 70 315 NRL 1400 EF AF 120 1 5 70 315 NRL 1500 EF AF 185 1 5 95 350 NRL 1650 EF AF 2X185 1 5 150 400 NRL 1800 EF AF 2X185 1 5 150 400 Key Sec A 400V 3N 50Hz power supply for NRL 750 FC version only Sec A 400V 3 50Hz power supply from NRL 800 FC to NRL 1800 FC Earth Earth wire to connect to unit IL Master switch 23 4 1 Auxiliary switch IAD To prepare the auxiliary switch connect the REMOTE PANEL device to the clamp 4 on terminal board M7SC and clamp 4 of the remote panel 23 42 Pump contactor CPO1 CPO2 To prepare the pump contactor connect the device CPO1 to clamp 2 of the terminal board M16 SC and the device CP02 to clamps 4 and 6of the terminal board M1 SE2 23 4 3 Extemal alarm AE Per predisporre un dispositivo di allarme estemo collegare il contatto del dispositivo al morsetto 1e 2 della morsettiera M17 23 4 4 Connectio
19. the cooling circuit may only be carried out by a qualified refrigeration technician the event of failure to comply with the above mentioned indications 12 WARNINGS REGARDING SAFEIY AND INSTALLATION STANDARDS Thechiller must be installed by a qualified and suitably trained technician in compliance with the national legislation in force in the country of destination Ministerial Decree 329 2004 AERMEC will not assume any responsibility for damage due to failure to follow these instructions Before beginning any operation READ THESE INSTRUC TIO NS CARE FULLY AND CARRY OUT THE SAFETY CHECKS TO PREVENTALL RISKS OF DANGER All the staff involved must have thorough knowledge of the operationsand any dangersthat may arise at the moment in which the installation operationsare car ried out R410A REFRIGERANTGAS O The chilleris delivered complete with the correct refrigerant load R134A does not contain chlorine is not inflammable and does not damage the ozone layer However any interventions are always the competence of the technical after sales service SAT ora qualified technician 2 DESCRIPTION OF THE UNIT 3 The appliances in the NRLF series are water chillers with cooling ca pacity recovery system of extemal aircalled free cooling The free water cooling system from here the name free cooling consists integrating the cooling capacity distributed by the compressors up to total replace
20. 0 2464 922 11 1 15 496 12 796 17 796 10 496 14 596 7 696 10 6 AVX 761 NRL1650FA E 03 4600 2453 970 5580 980 2410 1097 11 996 12 096 18 1 18 2 12 7 12 896 7 2 7 296 AVX 762 NRL1650FA E 04 4710 2447 988 5690 980 2406 1110 12 0 11 7 18 5 18 296 12 996 12 696 7 196 7 096 AVX 762 NRL1650FA E P3 4430 2463 937 4760 330 2447 976 11 4 14 396 14 396 17 996 11 1 13 996 7 6 9 596 AVX 763 NRL1650FA E P4 4510 2458 953 4850 340 2442 990 11 596 14 0 14 796 18 096 11 396 13 896 7 5 9 296 AVX 763 NRL1800FA E 00 4420 2479 870 4710 290 2468 893 10 796 15 696 12 5 18 2 10 096 14 6 7 5 10 996 AVX 766 NRL1800FA E 03 4810 2456 944 5830 1020 2415 1067 11 696 12 396 17 696 18 796 12 296 13 096 7 1 7 596 AVX 762 NRL1800FA E 04 4910 2450 962 5930 1020 2411 1080 11 626 12 196 18 096 18 796 12 4 12 996 7 1 7 396 AVX 762 NRL1800FA E P3 4630 2466 912 5010 380 2452 947 11 0 14 6 13 9 18 596 10 796 14 196 7 4 9 896 AVX 763 NRL1800FA E P4 4720 2461 928 5090 370 2447 961 11 196 14 396 14 4 18 596 10 896 14 0 7 4 9 596 AVX 763 38 INRLPY 0511 4086911 03 20 SELECTION AND PLACE OF INSTALLATION Before beginning installation consent with client and pay attention to the following recommendations
21. 0000 70000 80000 90000 100000 110000 120000 130000 Water flow rate IV h FREE COOLING FUNCTIONING PRESSURE DROPS 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000 110000 120000 1300000 Water flow rate IV h Average water temperature C 5 10 15 20 30 40 50 Multiplicative coefficients 1 02 1 0 985 0 97 0 95 0 93 0 91 INRLPY 0511 4086911_03 21 12 USEFUL STATIC PRESSURES NRL c hiller function useful static pressures Pressure drops kPa 30000 40000 50000 60000 70000 80000 90000 100000 Water flow rate IV h NRL free c ooling function useful static pressures Pressure drops kPa 30000 40000 50000 60000 70000 80000 90000 100000 Water flow rate l h 22 INRLPY 0511 4086911_03 13 SIORAGE 13 1 MAXIMUM MINIMUM WATER CONTENTIN THE SYSTEM 13 1 1 Recommended maximum water content 13 3 MAXIMUM CONTENTON VARIATION OF THE CAPACITY OF THE EXPANSION VESSEL Hydraulic height Hm 30 25 20 15 212 25 Calibration of expansion vessel bar 3 2 2 8 2 3 1 8 1 5 Recommended values of watercontent 1 2 174 2 646 3 118 3590 3852 Table 13 3 indic ates ma ximum water capacity in litres of hydraulic plant compatible with expansion vessel The values shown in the table referto three maximum and minimum watertemper atures If the effective water content of the hydraulic plant including the storage tank if present isgreaterthan that given in the table at operational conditi
22. 49 NRL1250FA E P3 3300 1782 882 3550 250 1792 915 11 8 16 596 21 196 29 6 8 796 12 3 AVX 750 NRL1250FA E P4 3350 1772 896 3600 250 1782 927 12 0 16 5 21 3 29 3 8 8 j 12 096 AVX 750 NRL1400FA E 00 3380 1830 846 3580 200 1854 865 9 996 15 396 21 096 32 4 8 4 13 096 AVX 752 NRL1400FA E 03 3740 1760 936 4660 920 1679 1083 15 0 15 5 25 8 26 6 8 4 8 7 AVX 753 NRL1400FA E 04 3810 1747 953 4740 930 1669 1094 15 396 15 596 26 0 26 3 8 4 8 5 AVX 753 NRL1400FA E P3 3560 1793 894 3840 280 1802 930 11 396 15 596 22 4 30 6 8 5 11 6 AVX 754 NRL1400FA E P4 3620 1782 908 3900 280 1792 942 11 6 15 596 22 796 30 396 8 5 11 4 AVX 754 NRL1500FA E 00 3660 1833 814 3880 220 1856 831 9 0 14 996 21 1 34 896 7 6 12 6 AVX 757 NRL1500FA E 03 4020 1768 901 4970 950 1691 1043 13 896 15 496 25 896 28 6 7 8 8696 AVX 753 NRL1500FA E 04 4090 1756 918 5040 950 1682 1054 14 196 15 396 26 0 28 396 7 796 8496 AVX 753 NRL1500FA E P3 3840 1799 860 4150 310 1808 893 10 3 15 196 22 5 32 996 7 796 111 396 AVX 758 NRL1500FA E P4 3900 1789 874 4200 300 1799 905 10 6 15 2 22 8 32 6 7 8 11 1 AVX 758 NRL 1650 FAJE 00 4220 2476 894 4470 25
23. 6 9 1 13 596 AVX 739 NRL900FA E 03 3000 1409 977 3890 890 1391 1140 15 4 14 3 25 1 23 396 11 496 10 696 AVX 743 NRL900FA E 04 3070 1405 996 3960 890 1388 1152 15 626 14 296 25 3 23 096 11 496 10 496 AVX 743 NRL900FA E P3 2830 1395 926 3070 240 1401 964 12 2 15 6 22 6 28 996 9 1 11 696 AVX 744 NRL 900 FA E P4 2880 1384 941 3120 240 1391 977 12 596 15 796 22 996 28 6 9 1 11 396 AVX 744 NRL 1000 FAJE 00 2840 1415 836 3020 180 1437 852 10 1 16 0 20 396 32 1 8 496 113 296 AVX 745 NRL1000FA E 03 3190 1393 942 4100 910 1380 1102 14 996 14 896 24 6 24 596 10 6 10 6 AVX 746 NRL1000FA E 04 3260 1389 961 4170 910 1377 1114 15 296 14 896 24 896 24 2 10 796 10 496 AVX 746 NRL1000FA E P3 3010 1379 892 3280 270 1386 928 11 8 16 2 22 0 30 2 8 4 11 596 AVX 747 NRL1000FA E P4 3060 1369 907 3330 270 1378 941 12 196 16 296 22 396 29 8 8 496 11 2 AVX 747 NRL 1250 FA E 00 3120 1820 831 3290 170 1847 845 10 396 16 596 19 5 31 396 8 6 13 8 AVX 748 NRL1250FA E 03 3470 1748 929 4370 900 1662 1081 15 796 16 396 24 896 25 6 8 6 8 9 AVX 749 NRL1250FA E 04 3540 1735 946 4440 900 1653 1092 16 026 16 226 25 0 25 4 8 6 8796 AVX 7
24. 6 95 C E Directive forelectromagnetic compatibility 2004 108 C E Machinery Directive 2006 42 CE PED Directive regarding pressurised devices 97 23 C E The product in agreement with Directive 97 23 CE satisfies the Total quality Guarantee procedure fom H with certificate n 06 270 QT3664 Rev 5 issued by the notified body n 1131 CEC via Pisacane 46 Legnano MI Italy The person authorized to compile the technical file is Massimiliano Sfragara 37040 Bevilacqua VR Italy Via Roma 996 Bevilacqua 28 12 2009 Marketing Manager Firma 1 GENERAL WARNINGS Standards and Directives respected on designing and constructing the unit Safety Machinery Directive 2006 42 CE Low Voltage Directive LVD 2006 95 CE Electromagnetic compatibility Directive EMC 2004 108 CE Pressure Equipment Directive PED 97 23 C E EN 378 UNI EN 14276 Electric part EN 60204 1 Protection rating IP24 Acoustic part SOUND POWER EN ISO 9614 2 SOUND PRESSURE EN ISO 3744 Certific ations Eurovent Refrigerant GAS This unit contains fluoride gases with greenhouse ef fect covered by the Kyoto Protocol Maintenance and disposal must only be per formed by qualified staff R410A GWP 1900 6 INRLPY 0511 4086911_03 AERMEC NRlsare constructed accord ing to the recognised technical stand ardsand safety regulations They have been designed for airconditioning and the production of hot wat
25. 765 75 0 685 645 58 5 0900E 825 505 640 960 795 765 75 0 685 645 58 5 1000E 825 505 640 960 795 765 750 685 645 585 1250E 855 535 670 95 0 875 80 0 790 765 69 5 61 5 1400E 850 530 665 975 82 5 80 0 790 725 635 575 1500E 845 52 5 66 0 98 5 81 5 785 75 5 715 625 565 1650E 860 540 675 985 83 5 79 0 79 5 765 665 61 5 1800E 880 560 695 99 5 87 0 81 3 825 780 68 5 62 9 17 CALIBRATION OF SAFETY AND CONTROL PARAMETERS Cooling set Anti freeze intervention Total differential 400V COMPRESSORS MAG NET CIRC UIT BREAKERS Inlet temperature of the water in cooling functioning mode Anti freeze alarm intervention temperature on EV sde water outlet temperature Temperature proportional and within which the compressors are activated and deactivated MANUAL REARM HIGH PRESSURE PRESSURE SWITCH PA bar 40 40 40 40 40 40 40 40 40 HIGH PRESSURE TRANSDUC ER TAP ban 50 LOW PRESSURE TRANSDUC ER TBP bar 30 COOLING CIRCUIT SAFETY VALVES AP bar LP bar heat pump only MAGNETO TERMIC I VENTILATORI N fansA N fansE Note The PS maximum pressure water side is 6 bar 26 INRLPY 0511 4086911 03 18 DIMENSIONS MOD VERSIONS A mm
26. AERMEC air conditioning PIS COOLING 4 b NRL free c ooling large sc roll AERMEC COMPANY QUALITY SYSTEM gt gt a a b 8 ICIM IC IV ISO 9001 2008 Cert n 0128 mo 1 AERMEC S P A INRLFC PY 0511 4086911 04 Dear Customer Thank you forchoosing an AERMEC product This product is the result of many years of experience and in depth engineering research and itis built using top quality materialsand advanced technologies Moreover the CE mark guarantees that our appliances fully comply with the requirements of the European Machinery Directive in terms of safety We constantly monitor the quality level of ourproducts and asa result AERMEC productsare synonymous with Safety Quality and Reliability Product data may be subject to modifications deemed necessary for improving the product without the obligation to give priornotice Thank you again AERMEC S p A AERMEC S p A reservesthe right at any moment to make any modifications considered necessary to improve our products and is not obliged to add these modificationsto machinesthat have already been fabricated delivered orare underconstruction Summary LI 1 2 6 1 6 2 7 1 7 2 10 10 1 11 11 1 12 13 13 1 13 2 13 3 13 4 14 General wa MINS Preservation of the documentation Wamings regarding safety and installation standards 6 Description o
27. ATION AND STORAGE Carefully open to allow release of eventual intemal pressure Preserve and use away from heat sources sparks open flames or other ignition sources Pressurised Manipulation container Protect against the sun s rays and do not expose to a temperature exceeding 50 C Do not perforate or bum even after use Place in a well ventilated area Wash thoroughly after handling of product Make sure there isa sufficient exchange of airand or exhaust system in the work places For salvage and maintenance works dismantling and disposal use an autonomous respiratory device The vapours are heavier than air and can cause suffocation by Precautions for safe use reducing the oxygen available for respiration Protect your hands with glovesthat insulate from heat Protect your eyes with safety goggles Manipulate following good practicesof industrial hygiene and safety ECOLOGICALINFORMATION Substance FORANE 32 Not easily biodegradable 5 after 28d In water OCDE 107 guideline Degradation due to OH radicals t a life 1472d IN the air Ozone destruction potential ODP R 11 0 Potential greenhouse effect of the halogenated hydrocarbons HG WP R 11 1 0 13 Practically not biac cumulable log Pow 0 21 OCDE 107 guideline Bioaccumulation INFORMATION REGARDING THE STANDARD EEC Directive D 91 155 EEC modified by D 93 112 EEC and D 2001 58 C E Information s
28. B mm C mm 0750 A E 4350 1500 1955 0800 A E 3400 2200 2450 0900 A E 3400 2200 2450 1000 A E 3400 2200 2450 1250 A E 4250 2200 2450 1400 A E 4250 2200 2450 1500 A E 4250 2200 2450 1650 A E 5750 2200 2450 1800 A E 5750 2200 2450 The drawings shown are only an example ofthe machine 19 DIMENSION TABLES AND HYDRAULIC ATING POSITIONS 19 1 1 NRL750 FC A E Vitaulic Connections Hole for tank draining Quotes referring to the base 1 mm M iiiiitititittttit ATIENTION Se eee The hydraulic attachments are the Victalic type Scale 1310 INRLPY 0511 4086911 03 27 50 FP T J za Y T Y N o o o oa e o Oo fa Yo Fa m o 24 d o is PO ES Lot E 50 Ce ke 100 1500 1150 1500 100 Hole forelectrical power sup ply 28 INRLPY 0511 4086911_03 DN80 Victaulic connection ATIENTION The hydraulic attachments are the Victalic type 19 1 2 NRL 800 900 1000 FC AJ E o 10 5 D CU ps E
29. ENDED ELECTRIC CABLE SECTION The cable section shown in the table are recommended for maximum lengths of 50m Forlongerlengths or different ca ble laying it is up to the PLANNER to calculate the appropriate line switch the powersupply line aswellasthe connection to the earth wire and con nection cables depending on The length The type of cable Ofthe absorption of the unit and the physicallocation and the ambienttemperature ATTENTION Check the tightening of all power wire clamps on commissioning and after 30 days from start up Successively check tightness of all power clamps every 6 months Loosened clamps can determine overheating of cables and compo nents 23 2 CONNECTION TO THE POWER SUPPLY NETWORK Make sure that there is no voltage present on the electric line you will con nectto 23 2 1 To access the electric box Make Yanti clockwise tum to the screwson the electric control board Tum the doorlock isolating handle to OFF see figure In this way ac cessis given to the electric control board 23 3 ELECTRIC POWER CONNECTION Forthe functional connection of the unit take the powersupply cable to the electric inside the unit fig 1 and connect to the isolator clamps repect ing the phase and the earth fig 2 23 4 AUXILIARY CONNECTIONS UNDER THE RESPONSIBILITY OF THE USER INSTALLER The clampsto which reference is made in the following explanationsare
30. Fans magnet circuit breakers protection Auxiliary magnet circ uit breaker protec tion Discharge gas temperature contol ther mostat ELECTRONIC ADJ USTMENT Microprocessor board Made up of management control and display boards Functions carried out evaporator inlet water temperature reg ulation with thermostating up to 4 steps and proportional integral control of fan speeds compressors start up delays compressorsrotation sequence compressorsfunctioning hours count Sstart stop reset permanent alarms memory autostart after voltage drop multilangauge messages functioning with local or remote control Machine condition display compressors ON OFF alarms summary Alarms management high pressure flow switch low pressure anti freeze compressorsoverload fans overload pumpsoverload Display of the following parameters water inlet temperature storage tanktemp water outlet temperature delta T high pressure low pressure re start stand by time alarms display Settings a without password cold set total differential b with password anti freeze set low pressure exclusion time display language accesscode For further information please refer to user manual 5 ACCESSORIES oso 90800 090 100 1250 140 1500 260 180 This accessory allows connection of the unit to BMS su
31. Y 0511 4086911 03 EXAMPLE OF HYDRAULIC CIRCUITS The diagrams shown here are only an example CO y FC FREE COOLING Sw inev The diagrams shown here are only an example HYDRAULIC CIRCUIT INDOOR NRL 03 04 The hydraulic circuit ismade up from Storage tank Water air coil Flow meter Waterfiter Waterpump Inlet watertemperature probe Outlet watertemperature probe Plate evaporator Loading unit with manometer Motorised 3 way valve Airseparator with automatic vent valve Waterdrain valve Safety valve KEY C XO E amp FREE COOLING Sw inev y fe V3V a z FREE COOLING DO SFC The diagrams shown here are only an example ACC St
32. a serial connec tion Using additional modules the device allowsto control the chiller via telephone network using the AER MODEM accessory or GSM network using the AERMO DEMGSM accessory The AERWEB can pilot up to 9chillers each of which must be equipped with the AER485 or AER485P2 accessory Curent rephaser Connected in parallel to the motor it allows a reduction of the input current It can only be installed in the factory and so must be requested on ordering Allows the reduction of peak power supply necessary forthe unit during start up phase Accessory only applicable in the factory only available power 400V 801 901 1001 1251 1401 1501 1651 1801 Reduction of the peak current with the accessory DRE MODEL Reduction of the peak current MONOCIRCUIT 30 BICIRC UIT 26 TRIC IRC UIT 22 QUADRICIRCUIT 20 PENTAC IRC Ult 18 ESAC IRC UIT 16 INRLPY 0511 4086911 03 13 6 TECHNICALDATA 61 CHILLER FUNCTIONING TECHNICAL DATA COOLING 750 800 900 1000 1250 1400 1500 1650 1800 191 229 247 310 337 364 430 452 210 177 196 216 228 289 310 331 400 421 69 6 75 89 103 114 136 157 159 175 76 4 80 93 109 120 145 169 169 186 32850 42480 53320 57960 62610 73960 77740 30440 39210 49670 53260 56850 68770 72330 103 81 92 98 104 107 Cooling capacity kW Total input power kW m Waterflow rate
33. anual ATIENTION WHENEVER THIS ALARM INTERVENES WE ADVISE YOU CALL THE NEAREST 26 ROUTINE MAINTENANCE All cleaning is prohibited until the unit has been disconnected from the electric power supply mains Make sure there isno voltage present be fore operating Periodic maintenance is fundamental to keep the unit perfectly efficient undera functional and energetic point of view It is therefore essential to cany out periodic yearly controls for the 26 6 1 Hydraulic circuit CHECK Refilling of water circuit Cleaning the water filter Flow switch control No airin the circuit vent That the water flow rate to the evapo ratoris constant The thermal insulation of the hydraulic piping The percentage of glycol where neces sary 26 6 2 Electrical circuit CHECK Safety efficiency Electric supply pressure Electrical Input Connection tightness Functioning of the compressor sump resistance AFTER SALES SERVICE IMMEDIATELY 25 6 WATER FLOWRATE ALARM The GR3 managesa water flow rate 7 controlled by the flow switch installed in series on the machine This type of safety device intervenes after the first 10 seconds of pump functioning if the water flow rate is not sufficient The intervention of this alarm determines compressorand pump block 26 6 3 Cooling circ uit CHECK State of compressor Efficiency of the plate heat exchanger resistance Work pres
34. ard with the anti freeze electric resistance Dehydrator fiter Mechanical dehydrator filter realised in ceramics and hygroscopic mate rial able to withhold impurities and any traces of humidity present in the cool ing circuit liquid indicator Used to check the refrigerant gas load and the eventual presence of humidity in the cooling circuit liquid and pressing line taps Allows interruption of the refrigerant in the case of extraordinary maintenance Solenoid valve The valve closes when the compressor switches off blocking the flow of refrig erant gastowardsthe evaporator Themostatic valve Mechanical valve vvith extemal equal iser positioned at evaporator outlet modulates the flow of gas to the evap orator depending on the heat load in orderto ensure a correct heating level of the intake gas One way valve Allows one wa y flow of the refrigerant 44 FRAME AND FANS Support frame Made in hot galvanised sheet steel with suitable thickness and painted with polyester powders able to resist atmos pheric agents through time Ventilation Unit Helical type balanced statically and dynamically The electric fans are pro tected electrically by magnet circuit breakers and mechanically by anti in trusion metal grids according to the IEC EN 60335 2 40 Standard 4 5 HYDRAULIC COMPONENTS Air water exc hanger free cooling Passed through by water for functioning in free cooling mode IT IS real
35. d out in confom ity with the Standardsin force in the different countries 28 R410A REFRIGERANTGAS CHEMICAL NAME CONCENTRATION 96 Difluoromethane R32 50 96 Pentafluoromethane R125 PHYSICAL AND CHEMICAL PROPERTIES Physical form 50 96 Liquefied gas Colour Colourless Odour Ether pH at 25 C neutral Boiling point interval 52 8 C 63 F non flammable point not infla mma ble Vapour pressure 11 740 hPa at 25 C Vapour pressure 21 860 hPa at 50 C Relative density 1 08 g cm3 Solubility IDENTIFICATION OF DANGER Water 0 15 g 100 ml Skin contact with evaporating liquids can cause freezing Strong concentrations of vapours can cause headache dizziness sleepiness nausea as well as lipothymia Irregular heart beating amythmia FIRST AID MEASURES General information In the event of unconsciousness place the person on one side in a stable position and call a doctor Do not administer anything to an unconscious person In case of irregular breathing or respiratory arrest apply artificial respiration In case of persistence of symptoms calla doctor Inhalation In case of inhalation breath fresh air In case of respiratory difficulty apply oxygen mask In case of respiratory arrest apply artificial respiration Contacta doctor Contact with the skin Skin contact with evaporating liquids can cause freezin
36. e of the system water TECHNICAL PLATE NOTE The drawings shown are only an example INRLPY 0511 4086911 03 7 3 1 CONHGURATOR 1 2 3 45 6 7 8 9 10 11 12 13 14 15 16 NRL 075 0 e F A e e 00 Field 1 2 3 Code NRL 4 5 6 Size 075 080 090 100 125 140 150 165 180 7 Compressors 0 Standard compressor 8 Thermostatic valve 7 Standard mechanicalthermostatic valve Y Mechanical thermostatic valve with water produced from 4 C to 6 C Xx Electronic thermostatic valve with water produced to 6 C 9 Model F Free c ooling 10 Heat recovery e VVithout rec uperators D Desuperheater 11 Version A High efficienc y E High efficiency silenced 12 Coils 2 In aluminium R In copper S Tinned copper Painted aluminium epoxy paint 13 Fans E Standard J Inverter 14 Power supply 400V 3N 50Hz with magnet c irc uit breakers 750 only 400V 3 50Hz from 800 to 1800 2 500V 3 50Hz with magnet circuit breakers 15 16 Storage tank Without hydronic storage tank Storage tank and high static pressure single pump Storage tank with high static pressure pump and reserve pump Without storage tank with high static pressure pump Without storage tank with high static head and reserve pump 20888 8 INRLPY 0511 4086911_03 4 4 1 DESCRIPTION OF THE COMPONENTS NRL 750 FC A E NL ZZ XS ZETA NOTE The drawi
37. environment It should be collected and if possible reused INRLPY 0511 4086911 03 41 GR3 CONTROLBOARD 22 4 gt o Be 8 gt o S 2 a 2 p 95 5 Sy i Oo Q 3 o5 o g E SY p va oO S Em vU 5 ze z5 5 a c a oo Oo U Bo DT ao 3 Eo gt 28 gt Ev e sa c 3p e mm lt h mue N ND Ina REIR E i i 1 1 1 st CU 0 iD ei e e e g e e 2 eee e eee ea OY Oe eere ooo j EWEENES 2 LECCE L L L L L L L L L L L phe a ey LE d L L e e e ec e9 LJ Digital outputs ro OOOO SOLO qa 12 A uitu E EC NM L te ESP1 IIIIN dee LL Qu a pal a 5 Ind a sS e m 0 E o d 2 s gs 8 3 f 2 5 8 2 P 8 g g E Pej 1 1 1 o o 1 1 1 1 2 o 2 2 5 1 LI LI LI LI ES ds n 1 1 i 7 1 a i i 7 a ke u ko gt u u 5 9 8 35 g vz 5 T 5 2 S pg DO Za gc 2 o S 2 g LI os m o o c E c a ST o Z w o Aa 5 so o 9 5 i z c z o y a o o 2 ER o a D 5 A 2
38. erand must be destined to this use compatibly with theirperformance features Any contractual or extracontractual lia bility of the Company is excluded for injury damage to persons animals or objects owing to installation regulation and maintenance errors or improper use All uses not expressly indic ated in this manual are prohibited 11 PRESERVATION OF THE DOCUMENTATION The instructions along with all the related documentation must be given to the user of the system who as sumesthe responsibility to conserve the instructions so that they are alwaysat hand in case of need Read this sheet carefully the execu tion of all works must be performed by qualified staff according to Standards in force ion this subject in different countries Ministerial Decree 329 2004 The appliance must be installed in such a way asto enable maintenance and orrepairsto be carried out The appliance waranty doesnot cover the costsforladdertrucks scaffolding orotherelevation systemsthat may become necessary forcanying out servicing under warranty Do not modify ortamper with the chiller as dangerous situa tio ns can be created and the manufacturer will not be liable forany damage caused The validity of the waranty shall be void in Danger O The refrigerant circ uit is under pressure Moreover very high temperatures can be reached The appliance may only be opened by a SAT service technician orby a qualified technician Work on
39. ersions with storage tank It is supplied with manometer for displa y of system pressure Expansion vessel versions with storage tank and pump only With nitrogen pre load membrane INRLPY 0511 4086911 03 11 4 6 CONTROLAND SAFETY COMPONENTS How switch installed as per standard Has the task of controlling that there is waterin circulation If thisisnot the case the unit blocks AP High pressure pressure switch as per standard With fixed calibration placed on high pressure side of cooling circuit inhibits functioning of compressor if abnormal work pressure occurs TP2 low pressure transducers as per standard Placed on low pressure side of cooling circuit signals the work pressure to con trol board generating a pre waming in case abnormal pressure occurs TP3 High pressure transducer as per standard Placed on high pressure side of cooling Circuit signals the work pressure to con trol board generating a pre waming in case abnormal pressure occurs Evaporator anti freeze electrical resist ance installed as per standard Its functioning is controlled by the anti freeze probe positioned in the plate evaporator Activation takes place when the temperature of the water is 3 C while it is disconnected with water temperature of 45 C The dedicated software resident in the regulation board manages the electric resistance Cooling circuit safety va
40. f the Un pp 7 Product identification see 7 Configurator nisen r s h n enti nent h sive 8 Description of the components pp 9 Nr 750 fC AL 0 ita id 9 Nri 800 900 1000 fc 8 6 se 10 Cooling Circuit dece etre eo delet 11 Fame and dans ini 11 Hydraulic components pp 11 Control and safety components 12 Electric components sese 12 66659010165 nda rd Hed rea e 13 Technical data eedem 14 Chiller functioning technical data 14 Freecooling functioning technical data 16 Operational limits eene 18 Functioning in cooling mode 18 Projectidatacs cce eee dai 18 Chiller functioning corrective factors 18 Cooling capacity and input power 18 Free cooling functioning corrective factors 19 For At different to nominal 19 Depost fA CUO iiss danas aaa tnter nts 19 GIyGOl c aa 20 How to interpret glycolcurves ppp 20 Pressure drops victi ie ea 21 Total pressure drops pp 21 Useful static pressures pp 22 SLOTA GQ e cios REGERE 23 Maximum minimum watercontent in the system 23 Recommended minimum water content 23 Maximum content on variation of the capacity of the expansion VeSSse pp 23 Water content in otherfunctioning conditions with glycoled Water 23 A tra neri decies 24 15 15 1
41. g In case of direct contact with the liquid warm frozen parts with water and call a doctor Remove all contaminated clothing and shoes Wash clothing before re use Contact with the eyes Wash eyes with running water for at least 15 minutes keeping eye lids open If imitation persists calla doctor Note forthe doctor Do not administer adrenalin or similar substances INRLPY 0511 4086911_03 47 Inhalation Iregular heart beating amhythmia Ingestion No specific risk Toxic ological information Skin contact Skin contact with evaporating liquids can cause freezing Slight initation for the skin Contact with the eyes Slight irritation forthe eye HRE HGHTING MEASURES Not infla mma ble Fire fighting equipment ASTM D 56 82 ASTM E 681 In case of fire use fire hose foam dry chemical products or C O2 Possibility of dangerous reactions of the unit during fire F and or Cl Fire or overheating causes increase of pressure that can cause explosion of unit Use fire hose to keep units exposed to fire cool This productis not inflammable at room temperature and atmospheric pressure However it can catch on fire if mixes with pressurised air and exposed to a strong source of ignition Exposure risks MEASURES TO TAKE IN CASE OF ACCIDENTAL RELEASE Environmental precautions Block leakage if there is no risk involved Leakagescan evaporate quickly Method of cleaning Evaporates MANIPUL
42. heets Dangerous substances and prepared products a el D 199 45 CE modified by D 2001 60 CE ng PER E Not classified as dangerous CONSIDERATIONS ON DISPOSAL Dispose of access and non recyclable products via the use of authorised disposal posal methods 2 ny Referto manufacturer seller for information about collection recycling PERSONAL PROTECTION Limit of professional exposure Difluorometha ne R32 LTEL UK ppm 1000 AB INRLPY 0511 4086911 03 GB Contains fluorinated greenhouse gases covered by the Kyoto Protocol R410A Global warming potential 1980 ES Contiene gases fluorados de efecto invernadero regulados por el Protocolo de Kioto R410A Potencial de calentamiento atmosf rico 1980 DE Enth lt vom Kyoto Protokoll erfasste fluorierte Treibhausgase R410A Treibhauspotenzial 1980 FR Contient des gaz effet de serre fluor s relevant du protocole de Kyoto R410A Potentiel de r chauffement plan taire 1980 IT Contiene gas fluorurati ad effetto serra disciplinati dal protocollo di Kyoto R410A Potenziale di riscaldamento globale 1980 PT Cont m gases fluorados com efeito de estufa abrangidos pelo Protocolo de Quioto R410A Potencial de aquecimento global 1980 GR Nept xet 6oploUXa a pia 6sphoknriou KaAUTTOWEVA ar TO TPWTOKOAAO rou 60 R410A Auvapik O ppavonc tou 7 1980 PL Zawiera fluorowane gazy cieplarniane objete Protokotem z Kioto R410A Wsp tczy
43. hnical spaces have been respected The hydraulic connections have been made respecting the inlet and outlet The hydraulic plant has been loaded and bled The hydraulic circuit cocks are open The electric connections have been made correctly The voltage is within the tolerance of 10 of the unit nominal value The earth connection hasbeen made correctly Allelectric and hydraulic connections have been tightened well 24 2 MACHINE COMMISSIONING Before starting the unit Close the electric control board hatch Position the appliance doorlock isolating switch at ON tuming the handle downwards fig 3 Pressthe ON key to switch the machine on fig 4 when the LED is switched on the machine is ready for functioning e Forevery season change checkthat the functioning limits lie within the limits Check that the compressor input current is lower than the maximum indicated in the technical data table Check that in models with three phase power supply that the compressor noise level is not abnormal If thisisthe case invert a phase Make sure that the voltage value lies within the pre fixed limits a nd that unbalance between the three phases three phase powersupply isnot above 3 24 3 SEASON CHANGEOVER 24 3 1 Season changeover from panel on machine To activate season change just pressthe key indicated in fig 5 To make sure the operation results positively the Fig 3 WARNING O Comm
44. ion valve output 4 two thermometers in inlet and in outlet 5 Safety valve It is necessary that the cooling unit water flow rate isin compliance with the values given in the performance tables The systems loaded with anti freeze or particularlegal dispositions make the use of waterdisconnectors mandatory Supply reintegration water details must be conditioned with appropriate treatment Syste ms 22 2 SYSIEM LOADING Before starting loading checkthat the System drain cock is closed Open all system vent valves and relative terminals Open the system cut off devices Start filing by slowly opening the system waterloading cock outsde the appli ance When water sta rts to escape from the terminal vent valves close them and continue loading until the value of 1 5 barisread on the manometer The system mustbe loaded ata pressure between 1 and 2 bar It is recommended to repeat this operation after the appliance has functioned fora few hours and to periodically check the system pressure reintegrating it if it falls below 1 bar Check the hydraulic sealing of the joints 22 3 EMPTYING THE SYSTEM Before beginning emptying place the master switch at OFF Check that loading water system reinte gration cock is closed Openthe drain cockoutside the ap pliance and all system vent valves and relative terminals If anti freeze is used by the unit it must not be dumped as it is harmful to the
45. ised with copper piping and alumini um louvres blocked via me chanical expansion of the pipes High efficiency type Circulation pump SN pump only or with storage tank versions Depending on the features of the pump chosen it offers a useful static pressure to combat the system pressure drops A reserve pump isalso envisioned The reserve pump is managed by the circuit board Water fiter installed as per standard This allows to block and eliminate any impurities present in the hydraulic cir cuits It contains a filtering mesh with holes that do not exceed one millime tre Itisindispensable in orderto prevent seriousdamage to the plate exchanger 3 way valve Present on the water side of the free cooling circuit it is an ON OFF diverter valve controled via electric servo mo tor Storage tank It is in steel with a capacity of 500 litres forthe 750 size from 800 to 1800 it is 700 litres In orderto reduce heatlossand eliminate the formation of con densate it is insulated using thick polyurethane material Mounted as perstandard 1x300 W forthe 750 2x300 W from 800 to 1800 up to 20 C extemal tem perature tank water tem perature 5 C controlled by the board via an anti freeze probe inserted in the tank Air vent valve all versions Automatic mounted on the upper part of the hydraulic plant it dis charges any air pockets present in the same Loading unit v
46. issioning must be performed with standard settings Only when the inspection hasbeen com pleted can the functio ning Set Point values by changed Before start up powerthe unit forat least 12 24 hours positioning the protection magnet circuit breaker switch and the door lock isolating switch atON fig 1 Make sure thatthe control panel is off in orderto allow the compressor sup oil to heat on ona ma Cle e o Y Ce ee EN A N Fig 4 RSS gt e machine must be activated in remote and local mode Forfurther information referto the USER MANUAL 24 3 2 Season changeover from PR3 Just act directly on the switch The machine switches off automatically and switches bac k on with the selected functioning mode CRs ee AR NA MO y O n E 3 Sete lt q PR3 remote panel INRLPY 0511 4086911 03 45 O 25 FUNCTIONING FEATURES 25 1 SETPOINTIN COOLING MODE Factory set 7 C At 5 C 25 2 SETPOINTIN HEATING MODE Factory set 45 C At 5 C If the unit power supply is restored after a temporary intenuption the set mode will be kept in the memory 25 3 COMPRESSOR START UP DELAY Two functions have been prepared to prevent compressor start ups that are too close Minimum time from last switch off 60 seconds Minimum time from last switch on 300 seconds 25 4 CIRCULATION PUMP The circ
47. lves They intervene by discharging the over pressure in the case of anomalous pres sures Calibrated at 45 baron the HP branch Calibrated at 30 baron the LP branch Hydraulic circuit safety valve Only for versions complete with hy dronic unit or with a pump TCalibrated at 6 Bar and with piped discharger that discharges if abnormal work pressure occurs 12 INRLPY 0511 4086911 03 4 ELECTRIC COMPONENTS Hectic Control Board Contains the power section and the management of controls and safety devices It isin compliance with the Standards IEC EN 61000 6 1 IEC EN 61000 6 3 immunity and electro magnetic emissions for residential envi ronments IEC EN 61000 6 2 IEC EN 61000 6 4 immunity and electro magnetic emissions for industrial envi ronments With the EMC 89 336 EEC and 92 31 EEC electro magnetic compatibility Directives and the LVD 2006 95 CE Low Voltage Directive Door lock isolating switch The electric control board can be accessed by removing the voltage Acton the opening lever of the control board itself This lever can be locked using one or more padlocks during maintenance interventions to prevent the machine being powered up acci dentally Contol board Allows the complete control of the appli ance For a more in depth description please referto the user manual Remote contol panel Allows to control the chiller at a distance Compressors magnet circuit breaker protection
48. ment via the use of an additional water coil which makes use of the low temperature of the extemal airto cool the sys tem retum water With this system itis possible to obtain cooled water almost free of charge forall those installations where the constant production is requested and there for also with low extemal airtem peratures e g industrial processes shopping centres hospitals and other civil applications This type of solution allows to obtain a large en ergy saving when the system retum water is 2 C lowerthan the extemal air a three way valve diverts the water into the free cooling coil to be pre cooled and therefore sent to the evaporator where it istaken to the project temperature The NRL free cooling units are made up from two cooling circuits with R410A and a unique hydraulic Circuit that can activate the free cooling watercoil via the 3 way valve positioned in series with the plate evaporator The hydraulic cir NRLcan be identified by Packing label reporting the identification data of the product Technical plate positioned on the lateral side member ofthe electric box NOTE Tampering removal lack of the identification plate orotherdoesnot allow the safe identification of the product and will make any installa tion or maintenance operation to be performed diffic ult cuit can be supplied with storage tank unit or not The presence of several scroll type compressors and
49. n PR3 as per standard Connect the remote panel PR3to the termi nalboard M7SC asstated below remember that the maximum distance ac cepted is 50 mt THE PR3 MUST BE ENABLED AS WELL AS CON NECTED See procedure atthe side AA INRLPY 0511 4086911 03 CONNECTION PR3 M7 SC Oo Ou Os Ou On o j 6x05 MAX 50m Dd To enable the remote panel PR3 acton the L R key on the GR3 panel on the machine as shown in the figure above when the LED nearto the letter R Switches on Remote machine functioning will be enabled from the remote panel 24 CONTROLAND COMMISSIONING 24 1 PREPARATION FOR COMMISSIONING Please note that on request by the Aermec customer or the legitimate owner of the machi ne the units in this series can be started up by the AERMEC After Sales Service in your area valid only on Italian territory The start of operation must be scheduled in advance based on the timeframe forthe com pletion of works for the system Priorto the work to be camied out by the AERMEC After Sales Service all other works electrical and hydraulic connections loading and bleeding of air from the system must have been completed Before starting the unit make sure that All safety conditions have been respected The unit is correctly fixed to the support surface The minimum tec
50. nd differential protection on the basisof the electric data table shown below installed as nearaspossible to the appliance lItismandatory to make an ef fective earth connection The manufacturercannotbe consid ered responsible forany damage caused by the lack of orineffec tive appliance earth connection Forunits with three phase power supply check the correct connec tion of the phases WARNING Itis prohibited to use the water pipes to earth the appliance Allthe electrical operations must be carried out by STAFF IN POSSESSION OF O THE NECESSARY QUALIFIC ATIONS BY LAW suitably trained and informed on the risks related to these operations the moment of installation O The characteristics of the electrical lines and of the related components must be determined by STAFF QUALIFIED TO DESIGN ELECTRICAL SYSTEMS in compliance with the intemational and national regulations of the place of installation of the unit and in compliance with the regulations in force at SERVICING ON THE UNIT O For the installation requirements refer only to the electrical diagram sup plied with the appliance The electrical diagram along with the manuals must be kept in good condition and ALWAYS AVAILABLE FOR ANY FUTURE O ITIS mandatory to verify that the machine is watertight before making the electrical connections and it must only be powered up after the hydraulic and electrical works have been completed 23 L RECOMM
51. ngs shown are only an example 8 Storage tank Expansion vessel Pump Loading unit Safety valve Airvent valve Free cooling and condensing coils Fans Electric box Compressors Filter How meter 3 way valves EGRESOS NA Evaporator INRLPY 0511 4086911 03 9 NRL 800 900 1000 FC A E 4 2 NOTE The drawings shown are only an example Storage tank Expansion vessel Pump Loading unit Safety valve Air vent valve Free cooling and condensing coils Electric box Filter 1 2 3 4 5 6 7 9 10 Compressors 11 12 How meter 13 3 way valves 14 Evaporator 10 INRLPY 0511 4086911 03 43 COOLING CIRCUIT Compressors High efficiency hermetic scroll com pressors on anti vibration mounts activated by a 2 pole electric motor with intemal heat protection supplied asper standard of the sump resistance The resistance is powered automati cally when the unit stops as long asthe unit is live Air side heat exchanger condenser High efficiency made with copper pipes and aluminium louvered fins blocked by mechanical expansion of the pipes Refrigerant water heat exchanger evaporator Unit with AISI 316 heat plate insulat ed externally with closed cell mate rial to reduce heat loss Supplied asper stand
52. nliness relative dirtying factors are used Tab 9 2 2 9 2 DEPOSITFACTORS The performances shown by the ta ble referto clean tubes with deposit factor 1 For different deposit factors multiply the data in the performance tables by the coefficients given INRLPY 0511 4086911 03 19 FREE COOLING ONLY FUNCTIONING COOLING CAPACITY CORRECTIVE C OEFHCIENTS 4 00 3 50 3 00 2 50 2 00 1 50 1 00 0 50 Free cooling corrective coefficient Pf am eieduugj re ewag 0 00 10 8 6 4 2 0 2 4 10 12 16 18 20 22 24 26 28 Temperature of the system retum water 9 2 1 At different to nominal 3 5 8 10 Cooling capacity correction factors 0 99 1 1 02 1 03 Input power correction factors 0 99 1 1 01 1 02 9 2 2 Deposit factors K m IW 0 00005 0 0001 0 0002 Cooling capacity correction factors 1 0 98 0 94 Input power correction factors 1 0 98 0 95 10 GLYCOL The correction factors of cooling powerand input powertake into account the presence of glycol and diverse evaporation temperatures The pressure drop correction factor considersthe different flow rate resulting from the application of the waterflow rate correction factor The waterflow rate correction fac toriscalculated to keep the same Atthat would be present with the absence of glycol NOTE On the following page an example is given to help graph reading to determine the percen
53. nnik ocieplenia globalnego 1980 SE Inneh ller s dana fluorerade vaxthusgaser som omfattas av Kyotoprotokollet R410A Faktor for global uppv rmningspotential 1980 INRLPY 0511 4086911 03 49 50 INRLPY 0511 4086911_03 INRLPY 0511 4086911 03 51 AERMEC 37040 Bevilacqua VR Italy Via Roma 996 Tel 39 0442 633111 Telefax 39 0442 93730 39 0442 93566 www aermec com AERMEC COMPANY QUALITY SYSTEM 4 m t AN b carta reciclata recycled paper A 5 pa pier recyc l ISO 9001 2000 n 0128 4 C rrecycled papier me AN The technical data given on the following documentation is not binding Aermec reserves the right to make all the modific ationsdeemed necessary for improving the product
54. ompressor start up delay usse 46 Circulation pump seen 46 Antifreeze ala MM essere 46 Water flow rate alamm 4 sss 46 Routine maintenance nane nenes eren eve rere rei 46 Extraordinary maintenance pp 46 R410a refrigerant ga SN 47 AE E AERMEC S p A ae Bevilacqua VR Italy Via Roma Tel 39 0442 633111 air conditioning Telefax 0442 93730 39 0442 93566 WWW aermec com info aemec com NRL free cooling SERIAL NUMBER EC DECLARATION OF CONFORMITY We the undersigned hereby declare under our own responsibility that the assem bly in question defined asfollows NAME NRL FREEC OOLING TYPE AIR WATER CHILLER MODELLO 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 dehumi difie rs 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 systems and heat pumps Safety and environmental requirements UNI EN 12735 Seamless round coppertubes for air conditioning and refrigeration UNI EN 14276 Pressure equipment for cooling systems and heat pumps Therefore complying with the essential requirements of the following directives LVD Directive 200
55. ons another dimensioned ex panson vessel must be installed using the normal criteria with reference to the additional volume of water In tables 13 4 itis possible to work out the maximum values of the system also forglycoled waterfunction Values are worked out by multiplying the referred value by the corrective Coefficient 13 1 2 Expansion vessel calibration Standard pre load pressure value of expansion vessel when empty is 1 5 bar while their volume is 25 litres maximum value is 6 bar Calibration of the vessel must be regulated using the maximum level difference H of the user see diagram by using the following formula p calibration bar H m 10 2 0 3 For example if level difference H is equalto 20m the calibration value of the vessel will be 2 3 bar If calibration value obtained from formula isless than 1 5 bar that isfor H 12 25 keep calibration as stand ard 13 2 RECOMMENDED MINIMUM WATER CONTENT Com NRLFC pressor 1 KW 2VKW n 0750 0800 0900 4 4 8 1000 1250 1400 5 4 8 1500 1650 6 4 8 1800 Minimum water content Recommended values of watercontent 19 978 1190 1404 1616 1732 Recommended values of watercontent 19 510 622 732 844 904 13 4 WATERCONTENTIN OTHER FUNCTIONING CONDITIONS WITH GLYCOLED WATER
56. orage tank EV Plate evaporator FG Water air coil GCR Loading unit with manometer FL Flow meter V Fan FM Y water filter VESP Expansion vessel MPO Water pump V3V Motorised 3 way valve SW Inlet water temperature probe inev VSF Air separator with automatic vent valve VSA Water drain valve SW out Outlet water temperature probe SFC Free cooling probe F Water filter VSIC Safety valve 22 1 EXTERNAL HYDRAULIC CIRCUIT The choice and the installation of compo nents extemal to the NRL isup to the installer who must operate according to the rules of good technical design and in compliance with the regulations in force in the country of destination Ministerial Decree 329 2004 Before connecting the pipes make sure that they do not contain stones sand rust sludge orforeign bodies that could damage the system It is good practice to realise a unit by pass to be able to wash the pipes without having to disconnect the appliance The connection piping must be adequately supported so that its weight isnot bome by the appliance It is recommended to install the following tools on the water circuit whenever not en visioned in the version in your possession 1 two manometers with suitable scale in inlet and outlet 2 Two anti vibration joints in inlet and in outlet 3 Two cut off valves in normal input in calibrat
57. ound potential forcentre of i po ei E 10m 1m band dB frequency A e I ROME 0750A 87 0 55 0 69 0 73 9 759 79 3 81 6 82 7 76 5 63 4 values in agreement with the 9614 2 standard in compliance with that re 0800A 885 565 70 0 99 5 875 84 5 83 0 765 720 64 0 quested by Eurovent certific ation 0900A 88 5 56 5 70 0 99 5 87 5 84 5 83 0 76 5 72 0 64 0 1000A 885 56 5 70 0 98 0 87 0 84 8 82 9 791 75 1 67 0 d pese E sai PE 1250A 91 5 59 5 73 0 99 2 935 87 5 855 82 2 760 65 2 conditions with reflective surface direc 1400A 91 0 590 72 5 101 0 90 0 86 0 87 0 79 0 71 0 640 tivity factor Q 2 in complia nce with ISO 1500A 90 5 58 5 72 0 102 0 89 0 86 0 85 0 79 0 71 5 65 0 3744 regulations 1650 920 60 0 735 101 0 925 88 5 87 0 81 0 73 0 66 0 1800A 940 62 0 75 5 102 0 95 0 90 5 89 5 82 0 73 0 67 0 NOTE The data is relative to the version with standard fans INRLPY 0511 4086911 03 25 Values referring to Water input temperature 12 C Temperature of produced water 7 C Exemalairtemperature 35 C Total sound levels Octave band Hz NRLE FC Pow Pressure 125 250 500 1000 2000 4000 8000 dB A dB A dB A Sound potential for centre of 10m 1m band dB frequency A 0750E 82 0 500 640 723 745 749 721 77 3 71 1 678 0800E 825 505 640 960 79 5
58. pervising systems with RS485 electric standard and MODBUS protocol Rubberanti vibration mounts Select the model using the compatibility table AVX 739 AVX 739 AVX 745 AVX 748 AVX 752 AVX 757 AVX 761 AVX 766 VT AVX 03 04 Rubberanti vibration mounts Select the model using the compatibility table VT23 AVX 740 AVX 743 AVX 746 AVX 749 AVX 753 AVX 753 AVX 762 AVX 762 VT AVX P3 P4 Rubberanti vibration mounts Select the model using the compatibility table VT23 AVX 741 AVX 744 AVX 747 AVX 750 AVX 754 AVX 758 AVX 763 AVX 763 GP Protect the extemal coil from blowsand prevent accessto the area below where the compressors and the cooling circuit are housed Every kitincludestwo grids a 10 x3 260 260 260 350 350 350 500 500 Small board to engage on the unit circuit board Allowsto program two time periods perday two switch on off cycles and to have differentiated g forevery day of the week LCHILLER Simplified control system for control switch on and switch off of two chillers with Aermec G R3 control in the same plant asif they were the same unit A e e e e e e e e e E MULTICHILLER Control system for control switch on and switch off of the single chillersin a plant in where multiple units are installed in parallel always ensuring constant flow to the evaporators AERWEB30 the AERWEB device allows remote control of a chillerfrom a common PC vi
59. sure Leaktesi for watertightness control of the cooling circuit Functioning of high and low pressure pressure switches Canyout the appropriate c hec ks on the filter dryerto check efficiency 26 6 4 Mechanical checks CHECK The tightening of the screws the compressors and the electrical box aswellasthe exterior panelling of the unit Insuffic ient fastening can lead to undesired noise and vibrations The condition of the structure If there are any oxidised parts treat with paint suitable to eliminate or reduce oxidation 27 EXTRAORDINARY MAINTENANCE the NRLs are filed with RA10A gasand are in spected at the factory Undernomal condi tionsthey do not require Technical Assistance related to control of refrigerant gas Through time gasleakage may be generated from the joints causing refrigerant to escape and discharge the circuit causing appliance malfunctioning In these casesthe leakage pointsare to be discovered repaired and the Gas circuit isto be replenished respecting the December 28 1993 n 549 law 27 6 1 Load procedure The load procedure is the following Empty and dry the entire cool ing circuit using a vacuum pump connected to the low and high pressure socket until 10 Pa isread onthe vacuum meter Wait a few minutes and check that this value The R410A refrigerant must only be loaded in the liquid state Functioning conditions that are different to the nominal conditions can
60. tage of glycol required see below diagram thisper centage calculation can take into con sideration one of the following factors Depending on which fluid is considered water or air the graph is interpreted by the right orleft side atthe crossing point on the curves with the extemal temperature line orthe water pro duced line A point from which the ver tical line will passis obtained and this will distinguish both glycol percentage and relative correction coefficients 10 1 HOWTO INTERPRETGLYCOL CURVES The curves shown in the diagram sum marise a significant numberof data each of which is represented by a spe cific curve In orderto use these curves correctly it isfirst necessary to make some initial reflections Ifyou wish to calculate the percent age of glycolon the basis of the extemal airtemperature enter from the left axis and on reaching the curve draw a vertical line which in tum will intercept allthe other curves the pointsobtained from the uppercurvesrepresentthe coeffi cientsforthe correction of the cool ing capacity and input power the flow ratesand the pressure drops rememberthat these coefficients must be multiplied by the nominal value of the size in question while the glycol percentage value recom mended to produce desired water temperature ison the loweraxis Ifyou wish to calculate the percent age of glycolon the basis of the temperature of the water produced enter from
61. terto the desupemeater 45 50 C At 5 C Average water temperature C 30 70 Multiplicative coefficient 1 04 1 02 1 0 98 0 96 24 INRLPY 0511 4086911 03 table 15 1 1 DESUPERHEA TER CORRECTIVE C OEFHCIENTS 3 00 2 50 2 00 4 150 1 00 45 C 40 C 0 50 35 C 30 C 25 C Conective coefficient Cd 20 C 0 00 35 40 45 50 55 60 65 Temperature of water produced at the desuperheater At 5 C DESUPERHEA TER PRESSURE DROPS 100 1500 1800 90 80 70 T Qa Y An 60 o e 50 ko g 40 E 30 900 1000 a 20 10 0 0 10 000 20 000 30 000 40 000 50 000 60 000 Watercapacity I h 16 1 1 NRL D 750 800 900 1000 1250 1400 1500 1650 1800 Heating capacity recovered kw 69 0 74 3 84 8 95 4 110 9 126 7 142 6 155 1 167 7 Desuperheater water flow rate Vh 11870 12790 14590 16400 19070 21800 24520 26680 28840 Desuperheater pressure drop kPa 21 0 9 0 9 6 12 5 15 5 16 5 22 5 24 3 30 9 16 SOUND DATA Total sound levels Octave band Hz NRLA FC Pow Pressure 125 250 500 1000 2000 4000 8000 Sound power dB A dB A dB A S
62. the right axisand on reaching the curve draw a verti cal line which in tum will intercept all the othercurves the points obtained from the uppercurves 20 INRLPY 0511 4086911 03 g 5 6 amp E g 3 2 20 FcGDpF a 2 10 FcGDpF b 2 00 90 80 FcGDpF d 70 FcGDpF c 60 FoGDpF e 50 FOGQE FoGQ PdC 30 Qe 20 1180 L 110 S 00 afo 0 99 0 990 no FcGPf PdC 0 98 m FcGPa 0 97 0 96 0 95 0 94 i fr FcGPf TO al ofthe waterproduced 0 5 O 15 20 30 35 40 45 50 55 WG lic ole l Temperature LEGENDA Fc GPf Corrective factorsfor cooling capacity FcGPa Corrective factorsof the input power FcGDpF a Correction factors for pressure drop evaporator av temp 3 5 C FcGDpF b Correction factors for pressure drops av temp 20 5 C FcGDpF c Correction factors for pressure drops av temp 5 5 C FcGDpF d Correction factors for pressure drops av temp 9 5 C FcGDpF e Correction factors for pressure drops av temp 247 5 C FcGQF Correction factor of flow rates evap av temp 9 5 C FcGQC Correction factors of flow rates condenser av temp 47 5 C NOTE Although graph shows up
63. to extemal air temperature of 40 C unit operational limits must be consi dered represent the coefficients forthe correction of the cooling capacity and input power the flow ratesand the pressure drops rememberthat these coefficients must be multiplied by the nominal value of the size in question while the lower axis recommendsthe glycol percentage value necessary to produce water atthe desred temperature Initial rates for EXTERNAL AIR TEM PERATURE and TEMPERATURE OF PRODUCED WATER are not directly related therefore it is not possble to referto the curve of one of these ratesto obtain corresponding point onthe curve ofthe otherrate on the curve of the otherrate Total pressure drops kPa Total pressure drops kPa 11 PRESSURE DROPS 11 1 TOTAL PRESSURE DROPS NOTE The pressure drops reported here are relative to functioning in Chiller and Free Cooling modes both calculated with an average temperature of the water at 10 C CHILLER FUNCTIONING PRESSURE DROPS 10000 20000 30000 40000 50000 6
64. uit board envisions an output forthe management of the circulation pump After the first 10 secondsthat the pump functions when the water flow rate isin nor mal working conditions the water flow rate alarm functions are activated flow meter WARNING Inspection maintenance and eventual repair work must be camied out only by a legally qualified technician Lack of control maintenance can cause damage to per sons or things For appliances installed near to the sea the maintenance intervals must be halved 46 INRLPY 0511 4086911 03 25 5 ANTI FREEZE ALARM The anti freeze alarm isactive ifthe ma chine isofforin stand by mode In order to prevent the plate heat exchanger from breaking due to the vvaterit contains freezing envision compressor block if the machine ison below 4 C and ignition of the resistance if standby below 5 C If the temperature detected by the probe pos tioned in output of the heat exchangerand in inlet to the chiller is less than 4 C WARNING THIS ANTI FREEZE SET TEMPERATURE CAN ONLY BE VARIED BY AN AU THORISED AFTER SALES CENTRE AND ONLY AFTER HAVING CHEC KED THAT THERE IS ANTI FREEZE SOLUTION IN THE WATER SYSTEM The intervention of this alarm determines compressor block and not pump block which remains active along with the switch on of the resistance if installed To restore normal functions the temperature of the outlet water must rise above 4 C Ream is m
65. uld be provided to prevent malfunctioning of the DC PX 72 PROJECTDATA 7 1 FUNCTIONING IN COOLING MODE Extemal airtemperature d b C Standard Functioning Temperature of the water produced C COOLING Acceptable maximum pressure Acceptable maximum temperature Acceptable minimum temperature 8 CHILLER FUNCTIONING CORRECTIVE FACTORS 81 COOLING CAPACITY AND INPUTPOWER HIGH EFHCIENCY VERSIONS The cooling capacity efficiency and electrical input powerin conditions differing from nomal conditions are obtained by multiplying the nominal values Pf Pa by the respective coefficient correctives Cf Ca The following diagrams show how to obtain corrective coefficients to use forunits in their va rious versions in cooling mode extemal air tempera ture to which reference ismade is shown in comespondence to each curve KEY Cf Corrective co efficient of the cooling capacity Ca Corrective co efficient of the Input power FOR At DIFFERENT FROM 5 C At the evaporator use Tab 9 2 1 to obtain correction factors of cool ing power and input power To con sider dirtiness of the exchangers use the relative deposit factors Tab 9 2 2 18 INRLPY 0511 4086911 03 CHILLER FUNCTIONING COOLING CAPACITY CORRECTIVE COEFHCIENTSCHILLER 1 6 20 C 1 5 25 C 1 4 30 C 35 C

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