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NRL free-cooling 080-180

1. REFRIGERANT CIRCUIT SAFETY VALVE This intervenes by releasing overpressure in the event of abnormal working pressure levels Calibrated at 653psi 45bar on the HP branch Calibrated at 435psi 30bar on the BP branch LOW PRESSURE TRANSDUCER Allows displaying on the microprocessor board display the value of the compressor s suction pressure one per circuit on the low pressure side of the cooling circuit DCPX_UL CONDENSATION PRESSURE CONTROLLER This accessory allows correct functioning when external temperatures drop below 50 F 10 C up to 14 F 10 C It consists of an adjustment circuit board that varies the number of fan revs according to the conden sation pressure read by the high pressure transducer in order to keep it sufficiently high for correct unit functioning EVAPORATOR ANTIFREEZE HEATING ELEMENT Its operation is commanded by the antifreeze probe located in the plate evaporator It is acti vated when the water temperature is 3 C and deactivated when the water temperature is 5 C The dedicated software in the regulation card manages the heater 5 6 ELECTRICAL COMPONENTS Electric board in compliance with standards EN 60204 1 1EC 204 1 complete with door lock main isolating switch fuses and contactors for compressors and fans terminals for REMOTE PANEL spring type control circuit terminal board outdoor electric board with double door and gaskets electronic contro
2. 25 C 77 F 10 1 INPUT POWER AND COOLING CAPA 8 i 30 c 86 F 1 4 CITY HIGH EFFICIENCY VERSION 9 l 35 C 95 F 2 13 t g gt The refrigerating capacity yielded and the input 8 Gi v electrical capacity in conditions other than rated g 11 40 C 104 F E conditions are obtained by multiplying the rated va 5 1i 1 v e a Pa by the respective correction coefficients 2 09 reper 5 La Ki 0 8 The following diagrams allow you to obtain the I 2 correction coefficients to be used for the various 8 m U o versions of the devices in cold mode next to each 5 curve you can see the outside air temperature to E t M A rel 0 4 which it refers o s 4 2 o 2 4 6 67 8 10 12 14 16 18 O KEY 212 24 8 28 4 32 0 35 6 39 2 42 8 44 6 46 4 50 0 53 6 57 2 60 8 64 4 F Cf correction coefficient of the cooling capacity Processed water temperature Ca correction coefficient of the input power 5 CORRECTION COEFFICIENTS OF THE INPUT POWER IN COOLING MODE 14 5 T 3 I ATTENTION FOR At DIFFERENT a I o U FROM 10 01 F 5 56 C a 12 g Tab 9 2 is used for the correction E a4 c 111 2 F Z a E v _ 40 C 104 F factors of the cooling capacity and S 11 35 C 95F G input power of the water consum 5 30 C 86 F E ption To take into account the 2 T ase rre 2 soiling of the exchanger apply the kc ag 20 C 68 F relative fouling factors Tab 9 3 S b 2 0 8 1 2 S I 2 g 0 7 1 I As 06 r 10 3
3. AERMEC air conditioning 9389 TECHNICAL MANUAL CHILLER EXTERNAL UNITS NRL free cooling e HIGHT EFFICIENCY e POWER SUPPLY 60Hz 080 1 80 AERMEC COMPANY QUALITY SYSTEM MY a vu cm N A LIED c us Earr kaal P LISTED www ahridirectory org 150 9001 2000 Cert n 0128 5 EA AHRI Standard 550 500 cisa Eas nterte AERMEC S P A NRL FC 800 1800 60Hz Dear Customer Thank you for choosing AERMEC It is the fruit of many years of experience and special design studies and has been made of the highest grade materials and with cutting edge technology In addition all our products bear the EC mark indicating that they meet the requirements of the European Machine Directive regarding safety The standard of quality is permanently being monitored and AERMEC products are therefore a synonym for Safety Quality and Reliability The data may undergo modifications considered necessary for the improvement of the product at any time and without the obligation for any notice thereof Thank you again AERMEC S p A AERMEC S p A reserves the right at all times to make any modification for the improvement of its product and is not obliged to add these modification to machines of previous manufacture that have already been delivered or are being built 2 Aermec cod 1409 4086984_04 NRL FC 800 1800 60Hz KEY 100 Mam 4 1 5 1 5 2 5 3 5 4 5 4 1 5 5 5 6 6 1 6 2
4. NRL FC 800 1800 60Hz 17 SOUND DATA Sound power Total sound levels Octave band Hz Aermec determines the sound power value on NRL EP Pressure 125 250 500 1000 2000 4000 8000 the basis of measurements taken in accordance dB A a dB A Sound power by central band frequency dB A with standard 9614 2 in compliance with the Eurovent certification 800FA 89 57 69 83 4 78 9 81 3 83 0 77 7 730 62 9 900FA 89 57 69 83 4 78 9 81 3 83 0 777 730 62 9 Sound pressure 1000FA 90 58 70 82 9 794 82 6 83 9 813 771 66 9 Sound pressure in free field on a reflecting plane 1250FA 93 61 73 85 1 86 9 86 3 87 5 85 4 79 0 66 1 directional factor 022 in accordance with 1400FA 94 62 74 87 9 84 4 85 8 90 0 83 2 75 0 65 9 standard ISO 3744 1500FA 94 62 74 88 9 83 4 85 8 88 0 83 2 75 5 66 9 1650FA 95 63 75 87 9 86 9 88 3 90 0 85 2 77 0 67 9 1800FA 95 63 75 86 9 87 4 88 3 90 5 84 2 75 0 66 9 800FE 82 50 62 79 9 70 9 73 3 75 0 69 7 65 5 57 4 900FE 82 50 62 79 9 70 9 73 3 75 0 69 7 65 5 57 4 1000FE 83 51 63 80 9 71 9 74 3 76 0 70 7 66 5 58 4 1250FE 87 55 67 80 9 80 9 78 8 81 0 797 72 5 62 4 1400FE 88 56 68 84 4 76 9 79 8 82 0 76 7 675 59 4 1500FE 88 56 68 85 4 75 9 78 3 78 5 75 7 66 5 58 4 1650FE 89 57 69 85 4 77 9 78 8 82 5 80 7 70 5 63 4
5. 9 1 10 10 1 10 3 1 10 2 10 3 11 11 1 11 2 12 12 1 12 2 13 14 15 16 17 18 18 6 18 1 18 2 18 3 18 4 18 5 18 10 18 7 18 8 18 9 description and choice of the unit check list configurator principle of operation schemes production of cold water only the system E cold water production and the system recovery desuperheater description of the components chiller circuit frame and fans hydraulic circuit standard version N hydraulic hydraulic components for configurable versions 8 Water TOatUKSS imussa mammaa tasata asa tara n iso kane 9 safety and control components electrical components accessories mechanical accessories electrical accesories technical data vers f chiller free cooling mode tecnical data idronic kit operating limits design specifications correction factors input power and cooling capacity high efficiency version 14 freecooling corrective coefficients for At different from the rated value fouling factors total pressure drops chiller function pressure drop free cooling function pressure drop useful heads chiller function useful heads free cooling function useful heads ethylene glycol solutions expansion tank calibration minimum water content partload sound data control and safety parameters calibration compressor thermomagnetic 208v 3 60hz compressor thermomagnetic 460v 3 60hz compr
6. RETURN SYSTEM D H O DISCHARGE SYSTEM 6 Aermec cod 1409 4086984_04 NRL FC 800 1800 60Hz 4 2 COLD WATER PRODUCTION AND THE SYSTEM RECOVERY DESUPERHEATER lt a H O SUPPLY H O DISCHARGE Aermec cod 1409 4086984 04 Description Operation 1 exchanger EVAPORATION SYSTEM SIDE Production of cold water exchanger CONDENSATION SOURCE SIDE Heat exchange with the air e exchanger EVAPORATION FREE COOLING SYSTEM SIDE Production cold water nem CONDENSATION DESUPERHEATER hot water after heating Swim ming pools Sign Description CP Compressor CN Air side exchange TEV Thermostatic valve BHE Exchanger plate V3V three way valve lt a H O RETURN SYSTEM 7 N H O SUPPLY D SYSTEM 7 5 DESCRIPTION OF THE COMPONENTS 5 1 CHILLER CIRCUIT SCROLL COMPRESSOR High efficiency scroll type hermetic compressors driven by a 2 pole electric motor with internal thermal protec tion of the electric heater casing included as standard HEAT EXCHANGER SYSTEM SIDE Of the plate type AISI 316 externally insulated with closed cell material to reduce thermal dispersion Fitted as standard with antifreeze heater DESUPERHEATER Of the plate type AISI 316 externally insulated with closed cell material to reduce thermal dispersion Fitted as standard with antifreeze heater HEAT EXCHANGER SOURCE SIDE Scambiatore a pacco alettato realizzato con
7. kPa 58 01 400 50 76 350 190 5 43 51 300 Ri Nee di Ve 250 09 36 25 250 29 00 200 21 75 150 Pressure drops 15 50 100 7 25 50 o 10000 20000 30000 40000 50000 60000 70000 30000 l h o 44 88 132 176 220 264 308 352 g m Water flow rate 16 Aermec cod 1409 4086984 04 NRL FC 800 1800 60Hz 13 ETHYLENE GLYCOL SOLUTIONS COOLING MODE CORRECTION FACTOR WITH ETHYLENE GLYCOL Freezing Point Percent ethylene glycol Average water temperature 9 5 C Owc Corrective factor of flow rates middle water temperatur 9 5 C Qwh Corrective factor of flow rates middle water temperatur 42 5 C Pc Corrective factor of cooling capacity Ph Corrective factor of heating capacity Pa Corrective factor of imput power Dp Corrective factor of pressure drop PROPYLENIC GLYCOL COOLING MODE CORRECTION FACTOR WITH PROPYLENIC GLYCOL Freezing Point Percent propylenic glycol Average water temperature 9 5 C Owc Corrective factor of flow rates middle water temperatur 9 5 C Qwh Corrective factor of flow rates middle water temperatur 42 5 C Pc Corrective fact
8. kW 8 76 8 86 8 86 13 11 13 29 13 29 17 36 17 36 Water flow rate Alls gpm 120 135 151 196 209 248 264 283 Total pressure drop Alls psi 13 16 16 17 18 20 20 21 Useful head with HIGH PUMP Alls psi 21 25 20 21 19 22 19 14 ENERGY INDICES EER Chiller mode BTU Wat 8 64 7 86 7 37 7 75 7 33 5 80 7 79 7 31 EER Free cooling mode BTU Wat 46 23 51 75 58 80 45 15 50 50 58 90 51 27 58 21 IPLV BTU Wat 10 62 10 38 10 35 10 52 10 45 9 94 10 42 10 35 PROTECTION RATING IP 24 24 24 24 24 24 24 24 SCROLL COMPRESSORS Quantity circuits n n 4 2 4 2 4 2 4 2 4 2 4 2 5 2 6 2 HEAT EXCHANGER SYSTEM SIDE Exchanger capacity gal 3 4 3 7 4 4 5 3 5 9 7 0 8 0 8 7 Water connections inch 3 3 3 4 4 4 4 4 HYDRONIC GROUP SYSTEM SIDE Total power input with HIGH PUMP Alls kW 72 78 90 22 106 33 132 42 147 99 221 68 176 97 201 50 STORAGE TANK Buffer tank capacity n gal 1x 185 1x 185 1x 185 1x 185 1x 185 1x 185 1x 185 1x 185 EXPANSION TANK Expansion tank n gal 2x7 2x7 20X17 2x7 2x7 2x7 2x7 2x7 Expansion tank calibration psi 21 75 218 5 21 75 21 75 21 75 21 75 21 75 21 75 HIGH HEAD PUMP Pump power input kW 3 0 4 00 4 00 5 50 5 50 7 50 7 50 7 50 230V 10 40 Pump input current 460V A 4 94 6 20 6 20 8 43 8 43 11 48 11 48 11 48 575V 3 95 4 98 4 98 6 74 6 74 9 18 9 18 9 18 SAFETY VALVE Safety valve calibration psi 87 87 87 87 87 87 87 87 FAN MOTORS Quantity n 4 4 4 6 6 6 8 8 Air flow CFM 48380 47436 47436 70564 68912 68912 93692 93692 230V 26 0 Fan input curre
9. obtain the corrective factors of the cooling capacity and input power different than At 10 01 F 5 56 C Input power correction factors 0 99 1 1 01 1 02 10 3 FOULING FACTORS Cooling capacity correction factors 0 99 1 1 02 1 03 The performance levels given by the technical data refer to conditions with clean tubes with a fouling FOULING FACTOR K M2 KW 0 1 factor lt 1 N b Cooling capacity correction factors For other fouling factor values multiply the data of 0 967 m Input power correction factors performance table by the coefficients given put p 14 Aermec cod 1409 4086984_04 NRL FC 800 1800 60Hz 11 TOTAL PRESSURE DROPS 11 1 CHILLER FUNCTION PRESSURE DROP PSI kPa Inlet temperature 53 6 F 50 76 350 Outlet temperature 44 6 F deco Outside air temperature 95 F 1800 43 51 300 Average water temperature 50 F 1500 1400 For temperatures other than 50 F to use the table of a 36 26 250 1000 1250 17 correction factors 900 v Z 7 2900 200 o 800 p 21 75 150 VA 14 50 100 7 25 50 000 0 o 20000 40000 60000 80000 100000 120000 Wh o 88 176 264 352 440 528 g m Water flow rate Average water temperature F C 41 5 50 10 59 15 68 20 86 30 104 40 122 50 Coeffici
10. tubi in rame e alette in alluminio adeguatamente spaziate in modo da garantire il miglior rendimento nello scambio termico FILTER DRIER Of the mechanical cartridge type made of ceramics and hygroscopic material able to trap impurities and any traces of humidity in the chiller circuit ONE WAY VALVE Allows the passage of the refrigerant in just one direction MECHANICAL VALVE The mechanical type valve with outside egualiser on the evaporator outlet modulates the gas flow to the evaporator on the basis of the thermal load in such a way as to ensure the proper degree of overheating of the intake gas SOLENOID VALVE The valve closes when the compressor turns off preventing the flow of refrigerant gas towards the evaporator SIGHT GLASS For checking the refrigerating gas load and any humidi ty in the refrigerating circuit TAPS Present in the liquid and discharge lines and allow to intercept the refrigerant in case of extraordinary maintenance 5 22 FRAME AND FANS SUPPORT FRAME Load bearing structure Made of hot galvanised steel sheet of a suitable thickness varnished with polyester powders able to resist atmospheric agents over time FAN UNIT Axial fan balanced statically and dynamically The elec tric fans are protected electrically by magnet circuit breakers and mechanically by anti intrusion metal grids according to the IEC EN 60335 2 40 Standard 5 3 HYDRAULIC CIRCUIT standard version A
11. yes yes Low pressure trasducer yes yes Solenoid valve of hot gas injecton no yes By pass valve of hot gas yes yes Exchanger EV EV CN yes yes Exchanger desuperheater no yes Exchanger glycol free no no Cock the liquid and discharge yes yes hydraulic circuit Version F 00 800 900 1000 1250 1400 1500 1650 Water filter yes yes yes yes yes yes yes yes Flow switch yes yes yes yes yes yes yes yes Air vent yes yes yes yes yes yes yes yes hydraulic circuit Version P3 P4 800 900 1000 1250 1400 1500 1650 Water filter yes yes yes yes yes yes ves yes Flow switch yes yes yes yes yes yes yes yes Safety valve yes yes yes yes yes yes yes yes Air vent yes yes yes yes yes yes yes yes Pump yes yes yes yes yes ves ves yes Expansion tank yes yes yes yes yes yes yes yes hydraulic circuit Version 03 04 800 900 1000 1250 1400 1500 1650 Water filter yes yes yes yes yes yes yes yes Flow switch yes yes yes yes yes yes yes yes Safety valve yes yes yes yes yes yes yes yes Air vent yes yes yes yes yes yes yes yes Pump yes yes yes yes yes yes yes yes Expansion tank yes yes yes yes yes yes ves yes Storage tank yes yes yes yes yes yes yes yes Version with DESUPERHEATER D hydraulic circuit Version F with D 200 220 250 2
12. 000 1250 1400 1500 1650 1800 THERMOMAGNETIC A 208V 3 60Hz 14 5 z E N 5 F 1 A 230V 3 60Hz 14 5 z N N z N z N A 460V 3 60Hz 7 2 9 7 9 7 9 7 13 2 13 3 19 5 19 5 A 575V 3 60Hz 5 8 77 77 77 10 6 10 6 15 4 15 4 A 208V 3 60Hz 14 5 S A E s 5 N A 230V 3 60Hz 14 5 s z F z F z MP1A A 460V 3 60Hz 7 2 9 7 9 7 9 7 13 2 13 3 19 5 19 5 A 575V 3 60Hz 5 8 77 77 77 10 6 10 6 15 4 15 4 A 208V 3 60Hz 14 5 s E E s a E A 230V 3 60Hz 14 5 z N 2 F z N N MP2 460V 3 60Hz 7 2 9 7 9 7 9 7 13 2 13 3 19 5 19 5 A 575V 3 60Hz 5 8 77 77 77 10 6 10 6 15 4 15 4 A 208V 3 60Hz 14 5 S E E s E E A 230V 3 60Hz 14 5 s N E s Z N z MP2A 460V 3 60Hz 7 2 97 97 97 132 133 19 5 19 5 A 575V 3 60Hz 5 8 77 77 77 10 6 10 6 15 4 15 4 Aermec cod 1409 4086984 04 21 NRL FC 800 1800 60Hz 18 10 FAN UNITS THERMOMAGNETIC 208V 3 60HZ COMPRESSOR 800 THERMOMAGNETIC MTV1 A 7 2 MTV1A A 7 2 MTV1B A MTV1C A MTV2 A 7 2 MTV2A A 7 2 MTV2B A MTV2C A 18 7 FAN UNITS THERMOMAGNETIC 230V 3 60HZ COMPRESSOR 800 THERMOMAGNETIC MTV1 A 7 2 MTVIA A 7 2 MTV1B A MTV1C A MTV2 A 7 2 MTV2A A 7 2 MTV2B A MTV2C A 18 8 FAN UNITS THERMOMAGNETIC 460V 3 60HZ COMPRESSOR 800 900 1000 1250 1400 1500 1650 1800 THERMOMAGNETIC MTV1 A 4 2 4 2 4 2 4 2 4 2 4 2 4 2 4
13. 1 FREECOOLING CORRECTIVE COEFFICIENTS se 4 z 5 2 4 6 67 E 0 12 14 16 AB lt 212 24 8 28 4 32 0 35 6 39 2 42 8 44 6 46 4 50 0 53 6 57 2 60 8 64 4 F The maximum cooling capacity yielded when Processed water temperature functioning is completely in free cooling mode i e all compressors are off is obtained by multiplying POWER CORRECTION COEFFICIENTS REFRIGERATOR FUNCTIONING ONLY FREE COOLING the cooling capacity nominal value Pf given in the Technical Data by the respective corrective coefficient 4 00 which is obtained from the following diagram on the so 350 2007 4F basis of the temperature of the water produced and s Aork ase o the temperature of the external air 8 3 00 a These values refer to the fans in full rev conditions g seo AOA Z maximum input power If the power yielded should I Scar F result in excess a modulation will intervene on the S 2 00 C 32 F B number of revs E O 5 S 150 C 41 F 5 S 10 50F 1 00 dokas 8 15 C 59 F ki 5 050 o 0 00 10 2 FOR At DIFFERENT FROM THE RATED 40 8 6 4 2 0 2 4 6 8 10 12 141516 18 20 22 24 26 28 VALUE 14 176 212 248 284 32 356 392 428 464 50 536 57259608 644 68 716 752 788 824 F The performances given by the technical data refer to AHRI standard conditions flow rate 0 0431 s per Processed water temperature kW At 10 01 F 5 56 C AT DIFFFERENT FROM THE RATED VALUE AT 5 C 10 01 F 3 C 5 40 F 5 56 C 10 01 F 8 C 14 40 F 10 C 18 F Use table to
14. 1800FE 89 57 69 84 4 79 4 79 1 83 5 80 2 70 5 62 8 18 CONTROL AND SAFETY PARAMETERS CALIBRATION COOLING SET min Max default Water inlet temperature in cooling mode 10 C 14 F 20 C 68 F 7 C 44 6 C ANTI FREEZE INTERVENTION min Max default Anti freeze alarm intervention temperature on EV side 15 C 5 F 4 C 39 2 F 3 C 37 4 F TOTAL DIFFERENTIAL min Max default Proportional temperature band within which the compressors are activated and deactivated 3 C 5 4 10 C 10 5 C 18 so so o 1250 m 150 1650 1800 HIGH PRESSURE SWITCH WITH MANUAL RESET FA psi 40 40 40 40 40 40 40 40 bar 580 580 580 580 580 580 580 580 HIGH PRESSURE TRANSDUCER TAP psi 39 39 39 39 39 39 39 39 bar 566 566 566 566 566 566 566 566 LOW PRESSURE TRANSDUCER psi 2 2 2 2 2 2 2 2 TBP bar 29 29 29 29 29 29 29 29 CHILLER CIRCUIT SAFETY VALVE psi 45 45 45 45 45 45 45 45 A bar 653 653 653 653 653 653 653 653 20 Aermec cod 1409 4086984_04 NRL FC 800 1800 60Hz 18 6 COMPRESSOR THERMOMAGNETIC 208V 3 60HZ 18 5 COMPRESSOR THERMOMAGNETIC 230V 3 60HZ COMPRESSOR COMPRESSOR Ci
15. 2 MTV1A A 4 2 4 2 4 2 4 2 4 2 4 2 4 2 4 2 MTV1B A s 4 2 4 2 4 2 4 2 4 2 MTV1C A 4 2 4 2 4 2 4 2 4 2 MTV2 A 4 2 4 2 4 2 4 2 4 2 4 2 4 2 4 2 MTV2A A 4 2 4 2 4 2 4 2 4 2 4 2 4 2 4 2 MTV2B A gt z 4 2 4 2 4 2 4 2 4 2 MTV2C A 4 2 4 2 4 2 4 2 4 2 18 9 FAN UNITS THERMOMAGNETIC 575V 3 60HZ COMPRESSOR 800 900 1000 1250 1400 1500 1650 1800 THERMOMAGNETIC MTV1 A 3 7 3 7 3 7 3 7 3 7 3 7 3 7 3 7 MTV1A A 3 7 3 7 3 7 3 7 3 7 3 7 3 7 3 7 MTV1B A E 3 7 3 7 3 7 3 7 3 7 MTV1C A 3 7 3 7 3 3 7 3 7 MTV2 A 3 7 3 7 3 7 3 7 3 7 3 7 3 7 3 7 MTV2A A 3 7 3 7 3 7 3 7 3 7 3 7 3 7 3 7 MTV2B A H E 3 7 3 7 3 7 3 7 3 7 MTV2C A z gt 3 7 3 7 3 7 3 7 3 7 22 Aermec cod 1409 4086984 04 AERMEC COMPANY QUALITY SYSTEM v w mu Cy a a ta N AERMEC S p A 37040 Bevilacgua VR Italy Via Roma 996 Tel 39 0442 633111 150 9001 2008 Cert n 0128 a Telefax 0442 93730 39 0442 93566 O www aermec com info aermec com ga u air conditioning C CISQ 8 gt The technical data on the following documents are not binding Aermec reserves the right to make any changes at any time deemed necessary for product improvement AERMEC S P A
16. 80 300 330 360 1800 Water filter no no no no no no no no Differential pressure switch no no no no no no no no Flow switch no no no no no no no no Exchanger desuperheater yes yes yes yes yes yes yes yes hydraulic circuit Version A with D 200 220 250 280 300 330 360 1800 Water filter desuperheater no no no no no no no no Differential pressure switch dssuperheater no no no no no no no no Flow switch desuperheater no no no no no no no no Exchanger desuperheater yes yes yes yes yes yes yes yes Safety valve yes yes yes yes yes ves ves yes Air vent yes yes yes yes yes yes ves yes Pump yes yes yes yes yes yes yes yes Expansion tank yes yes yes yes yes yes yes yes Storage tank yes yes yes yes yes yes yes yes Aermec cod 1409 4086984 04 NRL FC 800 1800 60Hz 3 field 1 2 3 4 5 6 10 11 12 13 14 15 16 CONFIGURATOR Code Size Compressors 0 NRL 080 090 100 125 140 150 165 180 Standard compressor Thermostatic valve Y X Model Heat recovery D Version A E 2 Coils R S V Ventilation Power supply 6 7 8 9 Hydronic kit 00 03 04 P3 P4 Standard mechanical thermostatic valve with produced water up to 39 2 F 44 c U Mechanical thermostatic valve with produc
17. F 120 248 51 131 operational limits we recommend you Acceptable minimum temperature C F 30 22 30 22 first contact our technical sales service WATER SIDE Acceptable maximum pressure bar PSI 6 87 Hydarulic circuit safety valve only in version with storage tank or with pump Calibrated at 6 87 bar PSI and with piped discharge which intervents by discharging overpressure if abnormal work pressure occur Note 1 N8 In summer mode the unit can be started with external air 46 C 114 8 F and water inlet 35 C 95 F In winter mode the unit can be started with external air 15 C 5 F and water inlet 10 C 50 F Operate in such conditions is permitted Aermec cod 1409 4086984_04 only for a short time and to bring the system that allow the unit to work within the permitted up to temperature To reduce the time of this operation it is recommended to install a three way valve that allows bypassing water from the system utilities until the conditions operation limits are achieved 13 NRL FC 800 1800 60Hz 10 CORRECTION FACTORS CORRECTION COEFFICIENTS OF THE COOLING CAPACITY 16 T 20 C 68 F 5 i
18. IR WATER HEAT EXCHANGER FREE COOLING Crossed by water for the free cooling function Is made of copper pipes and aluminium blades blocked through the mechanical expansion of the pipes High efficiency type WATER FILTER Allows you to block and eliminate any impurities in the hydraulic circuits Inside it has a filtering mesh with holes not greater than one millimetre It is essential for avoiding serious damage to the plate type exchanger FLOW SWITCH Controls that the water is circulating otherwise the unit blocks WATER TEMPERATURE PROBE IN OUT DRAIN VALVE Of the automatic type assembled on the upper part of the hydraulic system it releases any air bubbles that may be present in the system 3 WAY VALVE This is an electric servo controlled ON OFF diver ting valve on the water side of the freecooling circuit controlled AIR VENT Of the automatic type assembled on the upper part of the hydraulic system it releases any air bubbles that may be present in the system 5 4 HYDRAULIC HYDRAULIC COM PONENTS FOR CONFIGURABLE VERSIONS CIRCULATION PUMP HIGH PUMP Depending on the characteristics of the pump chosen it offers a useful head to overcome the pressure drops in the system EXPANSION TANK Of the membrane type with nitrogen pre charge SAFETY VALVE Calibrated to 87psi 6bar and with ductable discharge it releases overpressure in the event of abnormal working pressure levels STORAGE TAN
19. K In order to reduce the thermal dispersion and elimina te the phenomenon of the formation of condensation it is insulated with polyurethane material of a suitable thickness NRL FC 800 1800 60Hz Aermec cod 1409 4086984_04 NRL FC 800 1800 60Hz 5 4 1 WATER FEATURES PH 6 8 Electric less than 200 mV cm conductivity 77 F 25 C Chloride ions less than 50 ppm Sulphuric acid ions less than 50 ppm Total iron less than 0 3 ppm Alkalinity M less than 50 ppm all numbered cables DOOR LOCK KNIFE SWITCH It is possible to access the electrical panel by discon necting the voltage then using the opening lever of the panel itself This lever can be blocked with one or more padlocks during maintenance in order to prevent the machine being powered up accidentally REMOTE CONTROL PANEL PR3 This allows the chiller command operations to be given Total hardness Sulphur ions ammonia ions Silicone ions less than 50 ppm none none less than 30 ppm 5 5 SAFETY AND CONTROL COMPONENTS HIGHT PRESSURE SWITCH With fixed calibration placed on the high pressure side of the chiller circuit it shuts down compressor opera tion in the case of abnormal operating pressure HIGH PRESSURE TRASDUCER Placed on the high pressure side of the chiller circuit it communicates to the control card the operating pressu re sending a pre alarm in case of abnormal pressure
20. S NRL VERSION NRLO800 F A NRL0900 F A NRL1000 F A NRL1250 F A NRL1400 F A NRL1500 F A NRL1650 F A NRL1800 F A AVX 00 AVX 739 AVX 739 AVX 745 AVX 748 AVX 752 AVX 757 AVX 761 AVX 766 AVX P3 P4 AVX 741 AVX 744 AVX 747 AVX 750 AVX 754 AVX 758 AVX 763 AVX 763 AVX 03 04 AVX 740 AVX 743 AVX 746 AVX 749 AVX 753 AVX 753 AVX 762 AVX 762 GP 10 GP260 GP260 GP260 GP350 GP350 GP350 GP500 GP500 Aermec cod 1409 4086984 04 NRL FC 800 1800 60Hz 7 TECHNICAL DATA vers F CHILLER FREE COOLING MODE 800 900 1000 1250 1400 1500 1650 1800 CHILLER MODE Cooling capacity Alls Tons 50 19 56 41 62 80 81 92 86 99 103 40 109 94 118 09 Total power input Alls kW 69 78 86 22 102 33 126 92 142 49 214 18 169 46 194 00 Total power input with HIGH PUMP Alls kW 72 78 90 22 106 33 132 42 147 99 221 68 176 97 201 50 Water flow rate Alls gpm 120 135 151 196 208 248 264 283 Total pressure drop Alls psi 10 11 12 13 13 14 14 16 Useful head with HIGH PUMP Alls psi 24 29 24 26 24 27 25 20 FREE COOLING MODE Cooling capacity Alls Tons 33 71 38 19 43 39 49 28 55 87 65 17 74 08 84 11 Total power input Alls
21. ed water from 39 2 F 4 C to 42 8 F 6 C Electronic thermostatic valve with produced water up to 39 2 F 4 C Free cooling Without recovery units Desuperheater High efficiency High efficiency silenced version Made of aluminium Made of copper Tinned copper Painted aluminium epoxy paint Fan speed modulating for condensation control 230V 10 3 60Hz available omly for NRL 800 size with thermomagnetic switches 460V 10 3 60Hz with thermomagnetic switches 575V 10 3 60Hz with thermomagnetic switches 208V 5 3 60Hz with thermomagnetic switches Without hydronic kit Water storage tank and high head single pump Water storage tank with high head pump and reserve pump Without water storage tank with high head pump Without water storage tank with high head pump and reserve pump For lower temperatures contact the office 2 Versions avaible only on demand Aermec cod 1409 4086984_04 NRL FC 800 1800 60Hz 4 PRINCIPLE OF OPERATION SCHEMES 4 1 PRODUCTION OF COLD WATER ONLY THE SYSTEM Description Operation exchanger EVAPORATION SYSTEM SIDE Production cold water exchanger CONDENSATION SOURCE SIDE Heat exchange with the air exchanger EVAPORATION FREE COOLING SYSTEM SIDE Production cold water Sign Description cP compressor CN Air side exchange TEV Thermostatic valve BHE Exchanger plate V3V three way valve Gi H O
22. ents 0 91 11 2 FREE COOLING FUNCTION PRESSURE DROP PSI kPa 50 76 450 Inlet water temperature 15 C 59 F Outside air temperature 2 C 35 6 F Rated water flow 58 02 400 1650 1500 1400 Compressors off 50 76 350 1000 43 51 300 7 800 36 26 250 29 00 200 Pressure drop 21 75 150 14 50 100 725 50 K 0 00 0 0 20000 40000 60000 80000 100000 120000 l h o 88 176 264 352 440 528 g m Water flow rate Average water temperature F C 41 5 50 10 59 15 68 20 86 30 104 40 122 50 Coefficients 0 91 Aermec cod 1409 4086984 04 15 NRL FC 800 1800 60Hz 12 USEFUL HEADS 12 1 CHILLER FUNCTION USEFUL HEADS psi kPa 58 01 400 3 50 76 350 4 NR 43 51 300 7 War o 130b 36 25 250 29 00 200 1 Pressure drops 21 75 150 15 50 100 1 7 25 50 4 o 10000 20000 30000 40000 50000 60000 70000 30000 l h 0 44 88 132 176 220 264 308 352 g m Water flow rate 12 2 FREE COOLING FUNCTION USEFUL HEADS psi
23. essor thermomagnetic 575v 3 60hz pump thermomagnetic 03 p3 pump thermomagnetic 04 p4 compressor thermomagnetic 230v 3 60hz fan units thermomagnetic 208v 3 60hz fan units thermomagnetic 230v 3 60hz fan units thermomagnetic 460v 3 60hz fan units thermomagnetic 575v 3 60hZ ccscsesesseesesseteeseeeeees 4 o DU RR co Aermec cod 1409 4086984 04 Standards and directives to be followed in the design and manufacture of the unit STANDARD 15 UL 1995 Heating and cooling eguipment 2 ANSI NFPA Sstandard 70 National Electrical code N E C 31 CSA C 22 1 C 22 2 Safety Standard Electrical Installation SAFETY LEVEL 1 IP24 1 DESCRIPTION AND CHOICE OF THE UNIT The NRL Free cooling series appliances are water chillers eguipped with an external air cooling capacity recovery system called free cooling The water free cooling system consists in integrating and eventually completely replacing the cooling capacity delivered by the compressors through an additional water coil that exploits the low temperature of the external air to cool the system s return water Maximum reliability The presence of several scroll compressors allows NRL chillers various partialisations of the cooling capacity OPERATING MODE FREE COOLING ONLY when the external temperature is sufficiently low to allow water cooling inside the free cooling coils at the desired temperatu
24. level difference of 55 metres 2 Check that the lowest user can sustain the global pressure acting at that point 15 MINIMUM WATER CONTENT Key n Compresseor 1 I KW 2 I KW 1 Minimum water content Minimum water content in the case of process 4 8 applications or applications with low outside 2 temperatures and low load 4 Regolation on the temperature outlet water 4 8 project At less than 5 C 4 8 a 1 ATTENTION It is recommended to design systems with highwater content minimum recommended values shown in table to limit 2 The hourly number of inversions betweenfunctioning modes 3 Decrease in water temperature during winter defrost cycles 18 Aermec cod 1409 4086984 04 NRL FC 800 1800 60Hz 16 PARTLOAD COOLING AHRI CONDITIONS Inlet temperature Outlet temperature At External temperature 53 60 F 44 6 F 10 01 F 95 F Power steps COOLING CAPACITY 1 2 3 4 5 6 800 25 50 75 100 900 27 53 77 100 N 1000 25 50 75 100 N 1250 25 50 75 100 N 1400 23 44 63 82 100 N 1500 17 34 50 67 84 100 1650 19 37 55 71 86 100 1800 17 34 50 67 84 100 POWER SUPPLY 1 2 3 4 5 6 800 21 44 71 100 N 900 23 47 73 100 1000 21 44 71 100 si H 1250 21 44 71 100 z g 1400 13 37 56 77 100 1500 12 26 41 59 79 100 1650 14 29 46 63 81 100 1800 12 26 41 59 79 100 Aermec cod 1409 4086984_04 19
25. ller evaporator pump and recovery pump control consent relay Aermec cod 1409 4086984_04 from a distance CONTROL KEYPAD Provides full control functions For a detailed descrip tion refer to the user manual Electronic regulation GR3 Consisting of a management control card and a visualisation card Functions carried out adjustment of water temperature at evaporator inlet with thermo stat control for up to 4 levels and integral proportional fan speed control with DCPX UL compressor start up delay compressor seguence rotation count of compressor work hours start stop reset permanent alarms memory autostart after voltage drop multi lingual messages operation with local or remote control Machine status display sk 2 alarms sumary ON OFF compressors Display of the following parameters go S en 5l 5 GJ PD gt water inlet temperature accumulator temperature water outlet temperature AT high pressure low pressure waiting time for restart alarms visualisation For further information refer to the user manual 6 ACCESSORIES 6 1 MECHANICAL ACCESSORIES AVX Group of anti vibration to be installed under the base GP Protection grille protects the external coil from acci dental knocks 6 2 ELECTRICAL ACCESORIES AERWEB300 Accessory AERWEB allows remote control of a chiller through a common PC and an ethernet connection over a co
26. mmon browser 4 versions available AERWEB300 6 Web server to monitor and remote control max 6 units in RS485 network AERWEB300 18 Web server to monitor and remote control max 18 units in RS485 network AERWEB300 6G Web server to monitor and remote control max 6 units in RS485 network with integrated GPRS modem AERWEB300 18G Web server to monitor and remote control max 18 units in RS485 network with integra ted GPRS modem DRE It allows the reduction of peak power necessary for the machine during start up phase Accessories can only be fitted in the factory DUALCHILLER Simplified control system to switch on and off and command two chillers using Aermec GR3 command in a single system as if they were a single unit MULTICHILLER Control system to switch the individual chillers on and off and command them in a system in which several NRL FC 800 1800 60Hz units are installed in parallel always ensuring a con stant delivery to the evaporators PGS Daily Weekly Programmer Allows you to programme two time bands per day two switch on off cycles and to have differentiated programming for each day of the week PRM1 PRM2 FACTORY FITTED ACCESSORY It is a manual pressure switch electrically wired in series with the existing automatic high pressure switch on the compressor discharge pipe AER485 RS 485 interface for supervision systems with MODBUS protocol FOR MORE INFORMATION PLEASE CONTACT U
27. nt 460V 15 2 15 2 15 2 22 8 22 8 22 8 30 4 30 4 575V A 13 28 13 28 13 28 19 92 19 92 19 92 26 56 26 56 Fanpower input 460V kw 8 0 8 0 8 0 12 0 12 0 12 0 16 0 16 0 575V kw 8 72 8 72 8 72 13 08 13 08 13 08 17 44 17 44 SOUND DATA Sound pressure dB A 57 57 58 61 62 62 63 63 Sound power dB A 89 89 90 93 94 94 95 95 CHARGE The data reported can be changed at any time if deemed necessary from Aermec kg lib 34 0 74 96 35 0 76 16 35 0 76 16 45 0 99 21 45 0 99 21 48 0 105 82 66 0 145 51 64 0 141 10 R410A Gas refrigerant kg lib 34 0 74 96 36 0 79 37 35 0 76 16 47 0 103 62 47 0 103 62 48 0 105 82 70 0 154 32 64 0 141 10 Bi kg lib 6 4 14 11 6 4 14 11 12 0 26 46 12 0 26 46 12 0 26 46 18 0 39 68 18 0 39 68 18 0 39 68 kg lib 6 4 14 11 12 0 26 46 12 0 26 46 12 0 26 46 18 0 39 68 18 0 39 68 18 0 39 68 18 0 39 68 DIMENSION Height in 96 96 96 96 96 96 96 96 COOLING AAHRI STANDARD CONDITIONSA AHRI CONDITIONS LEAVING WATER 6 7 C 44 6 F Outlet water temperature 6 7 C 44 6 F FLOW RATE 0 043 L S PER KW FULL LOAD Flow rate 0 043l s per kW Load 100 air 35 C 95 F External temperature 35 C 95 F Load 75 air 26 7 C 80 06 F 1 data refered to no pump version Load 50 air 18 3 C 64 94 F Load 25 air 12 8 C 55 04 F Aermec cod 1409 4086984_04 11 u ke n o TT gt l lt z Z x oO wi Width Depth Weight when empty E otal in
28. ons are not suitable for installation in salty environments For the operating limits refer to diagram valid for AHRI standard conditions Wind breaks should be implemented if the unit is installed in particularly windy areas to prevent a malfunction of the unit ATTENTION When the unit is installed in particularly windy areas we recommend installing wind barriers if wind speed exceeds 2 5 m s 9 1 DESIGN SPECIFICATIONS Sp ec 122 50 Pc 114 80 a 113 45 46 PC s 104 40 jot g 95 35 s Functioning with STANDARD 5 86 30 glycoled water functioning v 77 25 E 68 20 2 59 15 ja 50 10 an nn g 41 5 Functioninggonlywithal Functioning only with sf funs 5 32 0 funs Ke x 23 5 water glycoled 14 10 5 15 HP OLTMIYTOoNntnvron2TINTPLLrTK5PIE SAENAMOTANDMHYTNDMOETNAOMHEOTNAMETAS Se ST Ta RRR RRR RSS S SBR RARER Se ae 2 F N N NNN Mm Mm M mys T TNL NN OL LC O Thermostatic valve Y gt e Thermostatic valve 3 e Thermostatic valve X gt Temperature of the water produced EVAPORATOR ATTENTION High pressure Low pressure The eits in standard configuration REFRIGERANT SIDE N h are not suitable for installation in salty side side environmentsto Acceptable maximum pressure bar PSI 45 653 30 435 If the unit is to function beyond the Acceptable maximum temperature C
29. or of cooling capacity Ph Corrective factor of heating capacity Pa Corrective factor of imput power Dp Corrective factor of pressure drop Aermec cod 1409 4086984_04 17 NRL FC 800 1800 60Hz H max 1 180 44 ft 55m 14 EXPANSION TANK CALIBRATION m The standard pressure value for pre charging the expansion tank S is 1 5 bar and the volume is 25 litres Maximum value 6 bar The tank must be calibrated according to the maximum difference T m in height H of the device see figure according to the formula p calibration bar H m 10 2 0 3 For example if the level difference H is 20m the calibration value of the tank will be 2 3 bar 5 a1 O If the calibration value obtained from the calculation is lower than n H 40 19 1t 12 25m 1 5 bar i e for H lt 12 25 maintain the standard calibration Fi pe i po x H 5 KEY A 1 Check that the highest user does not exceed a level diffe s rence of 180 45ft a NN p I x H 0ft 0 m v z z v 2 Check that the lowest user can sustain the global pressu so i i re acting at that point a wn a lt L ei a KEN KEN 2 wn N a N i a H min 2 KEY 1 Check that the highest user does not exceed a
30. put current Alimentation 208 3 60Hz IMODELS WITHOUT PUMP IMODELS WITH LOW PUMP ELECTRICAL DATA MODELS WITHOUT Alimentation 230 3 60Hz IMODELS WITHOUT PUMP IMODELS WITH LOW PUMP Alimentation 460 3 60Hz IMODELS WITHOUT PUMP IMODELS WITH LOW PUMP Alimentation575 3 60Hz IMODELS WITHOUT PUMP IMODELS WITH LOW PUMP 8 TECNICAL DATA IDRONIC KIT Model Cooling capacity LRA MCA MOP Recom FUSE LRA MCA MOP calc Recom FUSE PUMP I EC INVERTER FAN LRA MCA MOP Recom FUSE LRA MCA MOP calc Recom FUSE LRA MCA MOP Recom FUSE LRA MCA MOP calc Recom FUSE LRA MCA MOP Recom FUSE LRA MCA MOP Recom FUSE Total power input Total power input with HIGH PUMP Water flow rate Total pressure drop Useful head with HIGH PUMP ENERGY INDICES EER PROTECTION RATING BTU Wat IP ELECTRICAL DATA Total input current SOUND DATA Sound pressure Sound power 12 NRL FC 800 1800 60Hz DPIPIPI gt gt gt gt gt B B BB gt BB gt BB B gt gt gt gt gt Aermec cod 1409 4086984 04 NRL FC 800 1800 60Hz 9 OPERATING LIMITS The devices in their standard configurati
31. rcuit 800 Circuit 800 THERMOMAGNETIC THERMOMAGNETIC MTC1 A 59 MTC1 A 59 MTC1A A 1 59 MTC1A A 1 59 MTC1B A N MTC1B A N MTC2 A 59 MTC2 A 59 MTC2A A 2 59 MTC2A A 2 59 MTC2B A N MTC2B A N 18 1 COMPRESSOR THERMOMAGNETIC 460V 3 60HZ COMPRESSOR Circuit 800 900 1000 1250 1400 1500 1650 1800 THERMOMAGNETIC MTC1 A 30 4 30 4 40 5 51 5 51 5 40 5 40 5 51 5 MTCIA A 1 30 4 30 4 40 5 51 5 51 5 40 5 40 5 51 5 MTC1B A p N N N 40 5 40 5 40 5 51 5 MTC2 A 30 4 40 5 40 5 51 5 40 5 40 5 51 5 51 5 MTC2A A 2 30 4 40 5 40 5 51 5 40 5 40 5 51 5 51 5 MTC2B A s N 2 N p 40 5 51 5 51 5 18 2 COMPRESSOR THERMOMAGNETIC 575V 3 60HZ COMPRESSOR Circuit 800 900 1000 1250 1400 1500 1650 1800 THERMOMAGNETIC MTC1 A 27 5 27 5 32 3 417 417 32 3 32 3 417 MTCIA A 1 27 5 27 5 32 3 41 7 41 7 32 3 32 3 41 7 MTC1B A N E E 32 3 32 3 32 3 417 MTC2 A 27 5 32 3 32 3 417 32 3 32 3 417 417 MTC2A A 2 27 5 32 3 32 3 417 32 3 32 3 417 417 MTC2B A g A 32 3 41 7 41 7 18 3 PUMP THERMOMAGNETIC 03 P3 COMPRESSOR Power supply 800 900 1000 1250 1400 1500 1650 1800 THERMOMAGNETIC 208V 3 60Hz 14 5 N N p 2 N s N vibi A 230V 3 60Hz 14 5 z E E A 460V 3 60Hz 7 2 9 7 9 7 9 7 13 2 13 3 19 5 19 5 A 575V 3 60Hz 5 8 7 7 7 7 7 7 10 6 10 6 15 4 15 4 208V 3 60Hz 14 5 5 E N i 5 po A 230V 3 60Hz 14 5 5 A 460V 3 60Hz 7 2 97 9 7 9 7 13 2 13 3 19 5 19 5 A 575V 3 60Hz 5 8 77 7 7 77 10 6 10 6 15 4 15 4 18 4 PUMP THERMOMAGNETIC 04 P4 COMPRESSOR Power supply 800 900 1
32. re This is the most economical mode of the unit with only the fans operating in speed modulation MIXED FREE COOLING COMPRESSORS the compressors operate in integration with the free cooling when the cooling capacity recovered from the external air is no longer sufficient for the power reguired by the system The higher the cooling capacity recovery with free cooling the lower the integration is COMPRESSORS ONLY when the external air temperature is greater than the return temperatu re of the system water Models 1 NRL F free cooling The versions can be in different set ups at the same time in order to satisfy a wide range of plant engineering solutions 1 A HIGH EFFICIENCY 2 E SILENCED HIGH EFFICIENCY 3 D WITH DESUPERHEATER The units with desuperheater D are not available in the versions 1 YD 2 XD ACOUSTIC PART NRL FC 800 1800 60Hz 1 ISO DIS 9614 2 sound intensity method REFRIGERANT GAS R410A This unit contains fluorinated greenhouse gases covered by the Kyoto Protocol Maintenance and disposal operations must be only carried out by gualified staff in compliance with existing laws 2 CHECK LIST Ciruit Components Cooling circuit Model F with D Resistance carter compressor yes yes High pressure switch yes yes Low pressure switch no no High pressure trasducer

NRL free-cooling 080-180

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