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NRP 0800-1800

1. Key IDL Liquid indicator System side heat exchanger HPT High pressure transducer DHW side heat exchanger HPS High pressure switch WIN Source side heat exchanger LPT Low pressure transducer F AL Liquid storage tank LS Liquid separator CV One way valve TEV Thermostatic valves m Dehydrator filter VIC Cycle reversing valves Aermec code 5806765_00 12 02 NRP 0800 1800 4 2 HOT WATER PRODUCTION ONLY TO SYSTEM Description COOLING SIDE heat exchanger HEATING SIDE heat exchanger SOURCE SIDE heat exchanger SUPPLY H O Operation Not running CONDENSATION hot water production EVAPORATION Heat exchange with air 4 3 SIMULTANEOUS HOT AND COLD WATER PRODUCTION TO SYSTEM DHW SYSTEM e LU E gt LLJ a cr DHW SYSTEM DHW SYSTEM SUPPLY H O e L Description Operation 1 COOLING SIDE heat EVAPORATION 1 exchanger Cold water production 2 2 HEATING SIDE heat CONDENSATION 3 exchanger hot water production AL 3 SOURCE SIDE heat Not running CV exchanger F Aermec code 5806765_00 12 02 System side heat exchanger DHW side heat exchanger Source side heat exchanger Liquid storage tank One way valve Dehydrator filter IDL Liquid indicator HPT High pressure transducer HPS High pressure switch LPT Low pressure transducer LS Liqu
2. Minimum time from last switch on 300 seconds in heating mode 30 4 CIRCULATION PUMPS The circuit board envisions outputs for the management of the circulation pumps The pump side utilities start immediately After the first 30 seconds of operating when the water flow rate has 42 27 4 1 With the machine on check COOLING CIRCUIT CHECK That the compressor input current is lower than the maximum indicated in the technical data table That in models with three phase power supply the compressor noise level is not abnormal If this is the case invert a phase That the voltage value lies within the pre fixed limits and that unbalance between the three phases three phase power supply is not above 3 The presence of any refrigerant GAS leaks par ticularly in correspondence with the manometers pressure transducers and pressure switches pres sure points vibrations during transportation may have loosened the fittings Overheating Comparing the temperature read using a contact thermostat positioned on the compressor intake with the temperature shown on the low pressure manometer saturation temperature corresponding to the evaporation pressure The dif ference between these two temperatures gives the overheating value Optimal values are between 4 and 8 C Pressing line temperature If the subcooling and overheating values are regular the temperature measured in the pressing line pipe at the outlet o
3. U ER 1 v 30 C S O 1 0 S 25 C ez 09 20 6 E I o 08 c LE T s 0 07 pt be 0 6 0 5 0 4 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Temperature of water produced EVAPORATOR C AT WATER DIFFERENT TO NOMINAL AT 5 C 3 5 8 10 Cooling capacity correction factors 1 03 Input power correction factors 1 02 DEPOSIT FACTORS K m2 W Cooling capacity correction factors Input power correction factors Aermec code 5806765_00 12 02 19 NRP 0800 1800 CORRECTION FACTORS FOR DATA DIFFERENT TO NOMINAL IN HEATING MODE 10 YIELDS AND ABSORPTION DIFFERENT TO NOMINAL 10 1 I YISNIONOI P NPOJAd J JEM jo asnzesadwal 5 7 9 11 13 15 17 19 21 23 25 27 2930 3 1 y 3 1 4 1 3 1 2 ech 1 0 0 9 0 8 0 7 1 ALIDVdVI DNILVIH S U9I914909 UOI1991103 0 6 15 I3 11 9 0 5 2 83SN3QNOO P NPOJd 1918m jo aunzesadwal YIMOd INdNI TVLOL sju919l 909 BAQIAIIOD 0 7 7 9 11 13 15 17 19 21 23 25 27 2930 at soos obo d 3 5 9 15 13 11 External air temperature d b C RECOVERED HEATING CAPACITY CORRECTION COEFFICIENTS 11 5 pe npoud 1a3em ay 40 ainjyesadway e d JDIAAG A83AO238
4. 22 1 RECEIPT AND HANDLING The machine is delivered from the factory wrapped in estincoil Before handling the unit verify the lifting capacity of the machines used Handling must be performed by qualified suitably equipped staff 22 2 HANDLING THE MACHINE Whenever the machine must be lifted using belts place protections between the belts and the frame work to prevent damage to the structure NRP 0800 1800 units are supplied with eyebolts they must be lifted using suitable belts hooked to all the installed eyebolts 22 2 1 Lifting regulations 1 All panels must be tightly fixed before handling the unit 2 Before lifting check the specific weight on the technical plate 3 Use all and only the lifting points indicated 4 Use ropes in compliance with Standards and of equal length 5 Use a spacer beam in compliance with Standards not included 6 Handle the unit with care and without sudden movements It is prohibited to stop under the unit during lifting operations The machine must always be kept in a vertical posi tion ATTENTION The units CANNOT be stacked 22 3 SELECTION AND PLACE OF INSTALLATION The NRP air water OUTDOOR heat pump with gas side inversion R410A is sent from the factory already inspected and only requires electric and hydraulic connections in the place of installation Before beginning the installation process decide with the customer where the unit is to
5. 7 2 7 2 7 2 7 2 7 2 7 2 2450 2200 2200 2200 Depth 4250 4250 4250 Empty weight Sound power Aermec determines sound power values on the basis of measurements made in compliance with the 9614 2 Standard in agreement with that requested by Eurov ent certification 1 Cooling mode The HE version is low noise with temperature 12 7 C 35 C Heating mode The HE version is low noise witth temperature gt 25 Aermec code 5806765_00 12 02 Sound pressure 2970 3220 3430 lt m lt mm um e LLJ E x lt O N oz LLJ gt Sound pressure in free field conditions on reflective surface directivity factor Q 2 at 10 mt from the external surface of unit in compliance with ISO 3744 regulations 17 NRP 0800 1800 8 OPERATIONAL LIMITS 8 1 COOLING MODE In standard configuration the appliances are not suitable for installation in salty environments For operating limits please refer to the diagrams valid for At 5 C ATTENTION The installation of windbreaks is recommended in windy areas for correct operation of the DCPX Installation is recommended if wind speed exceeds 2 5 m s External air temperature d b C 5 2345 67 8 910111213141516 1718 19 Temperature of water produced EVAPORATOR C 60 Si 55 iE o 3 e 40 Sg 35 E TD 25 2345 6 7 8
6. NRP 0800 1800 AERMEC S p A 37040 Bevilacqua VR Italy Via Roma 996 Tel 39 0442 633111 Telefax 0442 93730 39 0442 93566 e la prima per il clima www aermec com info aermec com SERIAL NUMBER DECLARATION OF CONFORMITY We the undersigned hereby declare under our own responsibility that the assembly in question defined as follows NAME NRP TYPE MULTIPURPOSE AIR WATER MODEL To which this declaration refers complies with the following harmonised standards IEC EN 60335 2 40 Safety standard regarding electrical heat pumps air conditioners and dehumidifiers IEC EN 61000 6 1 IEC EN 61000 6 3 IEC EN 61000 6 2 IEC EN 61000 6 4 Immunity and electromagnetic emissions for residential environments Immunity and electromagnetic emissions for industrial environments EN378 Refrigerating system and heat pumps Safety and environmental requirements UNI EN 12735 Seamless round copper pipes for air conditioning and refrigeration UNI EN 14276 Pressurised equipment for cooling systems and heat pumps Thereby compliant with the essential requirements of the following directives LVD Directive 2006 95 CE Electromagnetic Compatibility Directive 2004 108 CE Machinery directive 2006 42 CE PED Directive regarding pressurised devices 97 23 CE The product in agreement with Directive 97 23 EC satisfies the Total quality Guarantee procedure form H with certificate no 06 270 QT3664 Rev 6 issued by th
7. 00 P1 Low head pressure pump system side P2 Low head pressure pump reserve pump system side P3 P4 High head pressure pump reserve pump system side 15 16 DHW SIDE SYSTEM SIDE HYDRONIC KIT 00 R1 Low head pressure pump DHW side R2 Low head pressure pump reserve pump DHW side R3 500V 3 50Hz with magnet circuit breakers Without storage tank High head pressure pump system side Without Pumps High head pressure pump DHW side RA High head pressure pump reserve pump DHW side 2 DHW SIDE SYSTEM SIDE DHW side production of domestic hot water in 2 pipe systems System side production of hot water in 4 pipe systems Reading key 1 Theconfiguration desired must be na Not available specified when ordering Aermec code 5806765 00 12 02 NRP 0800 1000 system hydronic unit NRP 1250 1800 system hydronic unit POSSIBLE CONFIGURATIONS BETWEEN HYDRONIC KITS recovery hydronic unit R2 R3 R4 na ok na na ok na na ok na na ok na na ok na POSSIBLE CONFIGURATIONS BETWEEN HYDRONIC KITS recovery hydronic unit R2 ok ok ok ok ok R3 ok ok ok ok ok R4 ok ok ok ok ok Lid E n gt un Li Ss N BASIC OPERATING LAYOUTS FOR 2 PIPE SYSTEM COLD WATER PRODUCTION ONLY TO SYSTEM Description Operation SYSTEM SIDE heat EVAPORATION exchanger Cold water production DHW
8. 1250 1400 1500 1650 1800 AVX 00 737 P1 P2 P3 P4 736 P1 R1 P4 R4 736 GP ALL GP260 GP260 GP350 GP350 GP350 GP500 ELECTRIC ACCESSORIES DRE ALL 801 901 1001 1251 1401 1501 1651 1801 REF ALL 88 90 94 94 94 AER485P1 ALL PGD1 ALL AERWEB300 6 ALL AERWEB300 18 ALL e AERWEB300 6G ALL AERWEB300 18G ALL 14 Aermec code 5806765_00 12 02 NRP 0800 1800 7 TECHNICAL DATA Model 1000 Cooling capacity Input power 323 365 402 441 477 291 332 368 402 430 Water flow rate Total pressure drops SYSTEM SIDE Useful head pressure Low head pressure Useful head pressure High head pressure Heating capacity Input power Water flow rate Pressure drops SYSTEM SIDE VERS 2 PIPES Pressure drops SYSTEM SIDE ENERGY INDEX 114 5 119 5 137 6 66115 68333 78870 EER TOTAL RECOVERY Cooling capacity Recovered power 3 31 Total input power TER Total Rfficiency Ratio Evaporator water flow rate Evaporator pressure drops SYSTEM SIDE Recovery water flow rate Recovery pressure drops DHW SIDE SYSTEM SIDE 47817 62609 432 491 550 98 0 112 0 128 0 7 82 7 11 1 99 57449 65189 72585 79637 85313 74305 84453 94601 102857 110425 63 66 73 72 Useful head pressure Low headpressure pump Useful head pressure High head pressure UNIT PROTECTION RATI
9. 22 2 22 3 23 24 24 1 24 3 24 2 24 4 24 5 24 6 24 7 24 8 24 9 24 10 24 11 24 12 25 25 1 25 2 26 26 1 26 2 26 3 26 4 27 27 1 27 2 27 3 27 4 28 29 30 30 1 30 2 30 3 30 4 30 5 30 6 31 31 1 32 General WarningS aaaaaaanaaaasnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnur 28 Preservation of the documentation 28 SCIE aja 28 Warranty RERO 28 Warnings regarding safety and installation standards 28 Product identification EE 28 Receipt of the product and installation 29 ER E WT 29 Handling the machine iaa 29 Selection and place of installation eeen 29 Weights and barycentreS ssssssssssssssoesssssssecessssossosesssssoessssssoee 30 Dimensions hydraulic connections ee 31 NRP 0800 1000 minimum technical spaces 31 NRP 0800 1000 hydraulic connections position vers 00 31 NRP 0800 1000 hydraulic connections position vers P1 P4 R1 R4 31 NRP 1250 minimum technical spaces E 32 NRP 1250 hydraulic connections position vers 00 32 NRP 1250 hydraulic connections position vers P1 P4 R1 R4 32 NRP 1400 1500 minimum technical spaces 33 NRP 1400 1500 hydraulic connections position vers 00 33 NRP 1400 1500 hydraul
10. 1 Before beginning emptying place the unit mas ter switch at OFF 2 Check that the system water loading reintegra tion cock is closed 3 Open the drain cock outside the appliance and all system and relative terminals vent valves 39 NRP 0800 1800 27 ELECTRIC CONNECTIONS The NRP multipurpose units are completely wired at the factory and only require connection to the electrical mains downstream from a unit switch according to that envisioned by the Standards in force on this subject in the country of installation It Is also advised to check that 1 The electrical mains features are suitable for the input values indicated in the electrical data table also taking any other machines operating at the same time into consideration 2 The unit must only be powered when installation has been completed hydraulic and electric 3 Respect the connection indications of the phase and earth wires e e r It is mandatory to verify that the machine is watertight before making the electrical connections 4 The power supply line must have a relevant pro i and it must only be powered after the hydraulic and electrical works have been completed tection against short circuits mounted upstream and dispersions to earth which isolate the system with respect to other utilities 5 The voltage must be within a tolerance of 10 All the electrical operations must be carried out by STAFF IN POSSESSION OF TH
11. 9 101112 13 14 1516 1718 19 Temperature of water produced EVAPORATOR C 8 2 HEATING MODE 60 E 55 50 o 45 0 40 t 35 3 w 30 A vg 25 30 20 42 o 3 15 E 10 E 5 0 15 10 5 0 10 15 20 25 30 35 40 45 External air temperature d b C Note 1 18 In SUMMER mode the unit can be started with external air 46 C and inlet water 35 C In WINTER AND RECOVERY MODE the unit can be started with external air 15 C and inlet water 20 C In these conditions operation is only allowed for a brief period of time and in order to take the system to the correct temperature To shorten this operation it is recommended to install a three way valve which makes it possible to by pass the water from the utilities to the system until achieving conditions that allow the unit to work within the allowed operating limits Aermec code 5806765 00 12 02 NRP 0800 1800 9 CORRECTION FACTORS FOR DATA DIFFERENT TO NOMINAL IN COOLING MODE 9 1 YIELDS AND ABSORPTION DIFFERENT TO NOMINAL 1 6 20 C 25 C 2 1 5 2 30 C i 35 C o un j o 5 2 40 C E go 42 ou f o EX 11 35 z Teo 45 C 22 09 E 2 E oO 08 S O 46 C U cu 0 7 E O Lu 0 6 0 5 0 4 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 6 1 5 gt 0 1 4 D M 1 3
12. CALIBRATIONS OF SAFETY AND CONTROL PARAMETERS COOLING SET min Max default Water inlet temperature cooling mode 20 C 7 C HEATING SET p Water inlet temperature heating mode 45 C 55 C 50 C ANTI FREEZE ALARM INTERVENTION Intervention temperature on EVAPORATOR side 4 C 3 C TOTAL DIFFERENTIAL Proportional temperature band within which the com 1856 gp pressors are activated and deactivated COMPRESSORS MAGNET CIRCUIT BREAKERS MTC1 A MTCIA A MTC1B A MTC2 A MTC2A A MTC2B A MANUAL RESET HIGH PRESSURE SWITCH PA bar 40 40 40 40 40 40 40 40 HIGH PRESSURE TRANSDUCER TAP bar 39 39 39 39 39 39 39 39 LOW PRESSURE TRANSDUCER TBP bar 2 2 2 2 2 2 2 2 COOLING CIRCUIT SAFETY VALVES HP bar 45 45 45 45 45 45 45 45 LP bar 30 30 30 30 30 30 30 FANS MAGNET CIRCUIT BREAKERS Calibration is performed on 2 magnet circuit breakers 2 ventilation lines A 9 9 9 14 14 14 18 18 Aermec code 5806765_00 12 02 27 E O LLJ un E St zx E un 28 Standards complied with WHEN DESIGNING and CONSTRUCTING the unit SAFETY il Machinery directive 2006 42 EC 2 Low voltage directive LVD 2006 95 EC 3 Electromagnetic compatibility directive EMC 2004 108 EC 4 Directive regarding pressurised devices PED 97 23 EC EN 378 35 UNI12735 UNI14276 ELECTRIC PART 1 IEC EN 603
13. JHL LV H E H E E n RI A E o d3MOd 4134310934 U919144909 BAYIIIIOD 9 o Wi MM II LO 11 12 13 14 15 16 17 18 10 391830 AHIAODIY HL LV 9 pe npoud Jajem aya jo aunzesadwa O O O o o o o o LO LN CH Ww Ln LO st CO LM LU I MILL VII VIII VIII RANA HL LLLA I I LLLI TU d3MOd INdNI 1VIOL U319144909 BAYIIIIOD Temperature of the water produced C AT THE EVAPORATOR AT WATER DIFFERENT TO NOMINAL AT 5 C Heating capacity correction factors LO e o Input power correction factors Aermec code 5806765 00 12 02 20 NRP 0800 1800 12 TOTAL PRESSURE DROPS 2 4 PIPE UNITS 12 1 SYSTEM SIDE COLD WATER PRODUCTION 2 PIPES Evaporator inlet water temperature ZE 200 Evaporator outlet water temperature 12 C a External air temperature 35 C 180 0 2 800 160 3 trey mp Average water temperature 10 C e 140 900 o 1000 For temperatures other than 10 C use the correction 2 120 factors table v 100 1239 2 3 80 1400 Sui 1500 40 1650 20 1800 0 0 50000 100000 150
14. SIDE heat not running exchanger SOURCE SIDE heat CONDENSATION exchanger Heat exchange with air HOT WATER PRODUCTION ONLY TO SYSTEM Description exchanger DHW SIDE heat exchanger exchanger SYSTEM SIDE heat SOURCE SIDE heat Operation CONDENSATION Hot water production not running EVAPORATION Heat exchange with air H O SYSTEM RETURN H 0 SYSTEM FLOW H O SYSTEM RETURN WIN e A F Key System side heat exchanger DHW side heat exchanger Source side heat exchanger Liquid storage tank NRP 0800 1800 IDL Liquid indicator HPT High pressure transducer HPS High pressure switch LPT Low pressure transducer LS Liquid separator CV One way valve TEV Thermostatic valves T Dehydrator filter VIC Cycle reversing valves Aermec code 5806765_00 12 02 NRP 0800 1800 3 3 2 CIRCUITS TO PRODUCE HOT WATER ONLY TO DHW DHW SYSTEM SUPP DHW SYSTEM H O Operation Description SYSTEM SIDE heat Not running exchanger 2 DHW SIDE heat ex CONDENSATION changer DHW production SOURCE SIDE heat EVAPORATION exchanger Heat exchange with air 3 4 2 CIRCUITS TO PRODUCE COLD WATER TO SYSTEM AND HOT WATER TO DHW DHW SYSTEM SUP PLY HO O V V V V vic k 1 21 Aermec code 5806765 00 12 02 Description SYSTEM SIDE heat exchanger DHW SIDE heat ex changer SOURCE SIDE heat exchan
15. Sales Service in your area valid only on Italian territory The start of operation must be scheduled in advance based on the frame regarding the realisation of the system Prior to the intervention all other works electrical and hydraulic connections priming and bleeding of air from the system must have been completed 27 3 START UP 27 3 1 Preliminary operations to be performed with no voltage present Control 1 Allsafety conditions have been respected 2 The unit is correctly fixed to the support surface 3 The minimum technical spaces have been respected 4 That the main power supply cables have appropriate cross section which can support the total absorption of the unit see electric data sections and that the unit has been duly connected to earth 5 Thatall the electrical connections have been made correctly and all the clamps adequately tightened 27 3 2 The following operations are to be carried out when the unit is live 1 Supply power to the unit by turning the master switch to the ON position see fig1 The display will switch on a few seconds after voltage has been supplied check that the operating status is on OFF OFF BY KEY B on lower side of the display tion and always refer exclusively to the wiring diagram supplied with the unit 7 For the functional connection of the unit take the power supply cable to the electric control board inside the unit and connect it to clamps L1 L
16. be installed whilst paying attention to the following 1 The support surface must be capable of supporting the unit weight 2 The safety distances between the units and other appliances or structures must be scrupulously respected 3 The unit must be installed by a qualified technician in compliance with national laws in the country of destination 4 It is mandatory to envision the necessary technical spaces in order to allow ROUTINE AND EXTRAORDINARY MAINTENANCE interventions 5 Remember that during operation the chiller can cause vibrations therefore AVX anti vibration mounts ACCESSORIES are recommended which are fixed to the base according to the assembly layout 6 Fixthe unit checking that it is level Aermec code 5806765 00 12 02 29 NRP 0800 1800 23 WEIGHTS AND BARYCENTRES TAB 1 VIEWS FROM ABOVE WEIGHT OF UNITS WHEN EMPTY E BARYCENTRE WEIGHT DISTRIBUTION ON NRP 0800 0900 1000 NRP U I G gt Y mm SUPPORTS E y e 4 gt S ZS 2 3400 E gt Gx G A BCD E FG H amp P gt 5 o 14700 1400 1400 100 0800 00 2270 1331 821 11 2 18 8 19 5 32 7 6 7 11 2 704 in Pe 0900 00 2460 1374 794 10 1 17 9 19 1 33 8 6 9 12 2 7
17. water water heat pump controlling condensation and evaporation on two distinct plate heat exchangers associated to the circulation of cold and hot water in the system It automatically changes from one configuration to the other managed by on board microprocessor to optimise the energy spent depending on the demand NRP 0800 1800 by the utility Maximum reliability Multi circuit unit from two to four depending on the model designed to provide maximum efficiency both with full load and partial loads guaranteeing operating continuity should one of the circuits stop to facilitate maintenance Having several compressors ensures control of more capacity steps yielded in both modes Built in hydronic kit Which encloses the main hydraulic components it is available in different configurations with single pump or with reserve pump with high or low head pressure see configuration Aermec code 5806765 00 12 02 NRP 0800 1800 2 CONFIGURATOR Field Description 1 2 3 NRP 4 5 6 SIZE 080 090 100 125 140 150 165 180 7 START UP DELAY 0 8 VERSION A High efficiency Silenced high efficiency Two pipes Aluminium Tinned copper SYSTEM TYPE Four pipes COILS Copper 11 In painted aluminium copper epoxy powders FANS SDgr Standard 12 Updated inverters POWER SUPPLY SDgr 400V 3 50Hz with magnet circuit breakers 13 14 SYSTEM SIDE HYDRONIC KIT
18. 0 17 PARTIALISATIONS COOLING Evaporator inlet water temperature 7 C Evaporator outlet water temperature 12 C Condenser air temperature 35 C At water 5 C HEATING FOR 4 PIPE VERSIONS ONLY Condenser inlet water temperature 40 C Condenser outlet water temperature 45 C evaporator air temperature 7 C d b 6 C w b At water 5 C Aermec code 5806765_00 12 02 Capacity steps COOLING CAPACITY 1 2 3 A 5 6 0800 27 53 100 0900 27 53 100 1000 27 53 77 100 1250 27 53 77 100 _ 1400 23 44 63 82 100 1500 19 37 55 71 86 100 1650 19 37 71 86 100 1800 19 37 71 86 100 INPUT POWER 1 2 3 4 5 6 0800 23 47 73 100 H 0900 23 47 73 100 e 1000 23 47 73 100 q 1250 23 47 73 100 1400 18 37 56 77 100 1500 14 29 46 63 81 100 1650 14 29 46 63 81 100 1800 14 29 46 63 81 100 HEATING CAPACITY 1 2 3 5 6 0800 27 52 100 0900 27 52 100 1000 27 52 77 100 1250 27 52 77 100 1400 24 43 62 83 100 1500 18 36 53 69 85 100 1650 18 36 53 69 85 100 1800 18 36 69 85 100 INPUT POWER 1 2 3 4 5 6 0800 23 47 73 100 0900 23 47 73 100 1000 23 47 73 100 H 1250 23 47 73 100 s 1400 20 37 56 79 100 1500 14 29 46 63 81 100 1650 14 29 46 63 81 100 1800 14 29 46 63 81 100 25 18 SOUND DATA ATTENTION The sound data is calculated with STANDARD fans Sound power Aermec
19. 000 Average water temperature 5 10 15 20 30 40 50 Well Multiplicative coefficient LO2 1 0 98 0 97 0 95 0 93 0 91 12 3 WHEN OPERATING WITH DHW SIDE RECOVERY 2 PIPES SYSTEM SIDE HOT WATER PRODUCTION 4 PIPES 250 Recovery inlet water temperature 40 C gt Recovery outlet water temperature 45 C O O O 0800 200 5 Average water temperature 43 C a O 0900 De For temperatures other than 43 C use the correction rr 150 1000 factors table S 3 1250 Vv 5 100 1400 V 5 1500 a G 1650 1800 0 A 0 50000 100000 150000 200000 verage water temperature Multiplicative coefficient____ 1 04 1 03 1 02 1 01 1 000 99 0 98 0 97 Water flow rate I h 12 2 SYSTEM SIDE HOT WATER PRODUCTION 2 PIPES HEATING FOR 4 PIPE VERSIONS ONLY 300 Condenser inlet water temperature 40 C 4 BER Condenser outlet water temperature 45 C 2 NRPO900 evaporator air temperature 7 C d b 6 C w b 250 3 NRP1000 At water aC 2 7 T 3 4 NRP1250 o 3 Average water temperature 10 C 200 2 E pda Q 6 For temperatures other than 43 C use the correction o i56 6 ER factors table b 7 NRP1650 3 NRP1800 v 100 a 50 0 0 50000 100000 150000 200000 Average water temperature Water Now ratel Multiplicative coefficient 1 04 1 03 1 02 1 01 1 00 0 99 0 98 0 97 Aermec code 5806765 00 12 02 21 NRP 0800 1800 USEFUL HEAD PRESSURES 2 4 PIPE SYSTEM 13 HIGH HEAD PRESSURE 13 2 LOW HEAD PRESSURE 13 1 IN COOLING
20. 004 20 2 INSTALLATION The unit must be installed in a way that maintenance and or repairs can be carried out 20 3 WARRANTY The appliance warranty does not cover the costs for ladders scaffolding or other elevation systems which may become necessary for carrying out interventions under warranty Do not modify or tamper with the heat pump as dan gerous situations can be created and the manufacturer will not be liable for any damage caused The warranty shall be become null and void if the above mentioned indications are not respected 20 4 WARNINGS REGARDING SAFETY AND INSTALLATION STANDARDS The heat pump must be installed by a qualified and suitably trained technician in compliance with the na tional legislation in force in the country of destination Ministerial Decree 329 2004 AERMEC will not assume any liability for damage if these instructions are not respected NRP 0800 1800 Before beginning any operation READ THESE INSTRUCTIONS CAREFULLY AND CARRY OUT THE SAFETY CHECKS TO AVOID ALL RISKS All the staff involved must have thorough knowledge of the operations and any dangers that may arise when the unit installation operations are carried out 21 PRODUCT IDENTIFICATION The NRP multipurpose appliances can be identified through PACKING LABEL which shows the product identification data TECHNICAL PLATE Aermec code 5806765_00 12 02 NRP 0800 1800 22 RECEIPT OF THE PRODUCT AND INSTALLATION
21. 10 10 1 11 12 12 1 12 3 12 2 13 13 1 13 3 13 4 13 2 14 14 1 15 16 17 18 19 Description OF the Unit aaaaaaaaaunn a nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnus 6 GIE UI EN 6 For CDS SUSU 0 S Garonne rene 6 COMU 7 Basic operating layouts for 2 pipe system 8 Cold water production only to system 8 Hot water production only to system err 8 2 Circuits to produce hot water only to dhw 9 2 Circuits to produce cold water to system and hot water to dhw 9 Circuit for producing hot water to system circuit for producing hot water to dhW alia 10 Basic operating layouts for 4 pipe system 10 Cold water production only to system 10 Hot water production only to system iii 11 Simultaneous hot and cold water production to system 11 Description of Components 12 COMU A 12 Structure and CT Siri 12 Standard hydraulic Cra 12 Water features rana iia 13 Control and safety components 13 Electric control board sirios 13 EE 14 Mechanical accessories 14 Gerd TE 14 Technical data EE 15 Operational limits aaaaaanaanaa nnnnannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnns 18 Cooling MR a a an onde 18 Heating mode a IT 18 Correction factors for data different to nominal in cooling mode 19 Yields and absorption different to nomi
22. 10 1000 00 2640 1354 793 10 2 18 1 19 4 34 4 6 5 111 5 716 Gx 1250 00 2970 1748 796 10 5 18 5 18 7 33 1 7 0 112 3 719 1400 00 3220 1789 907 10 9 15 6 22 4 32 0 7 8 11 2 725 1500 00 3430 1772 771 8 9 16 696 20 19637 396 6 0 11 1 730 1650 00 3950 2504 792 8 4 15 0 11 7 20 7 9 8 17 596 6 1 10 896 734 2502 807 8 5 14 7 12 1 20 9 9 9 17 0 6 2 10 7 1800 00 4090 2502 807 737 E Be WEIGHTS of the individual HYDRONIC KITS NRP 1250 1400 1500 HYDRONIC KIT P4 R1 R2 R3 R4 Gy 0800 291 221 271 251 291 706 gt 0900 223 263 253 283 712 4250 1000 221 261 251 281 712 lt gt 1250 232 282 262 302 721 1400 223 263 253 283 283 727 1500 248 318 248 278 248 318 248 278 732 1650 253 323 283 343 253 323 283 343 736 1800 243 313 273 333 333 736 ATTENTION 1 The weight of the hydronic kits does not affect the barycentre and the distribution of the NRP 1650 1800 weight on the supports u DD O Gy refer to the 00 versions gt without hydronic kit see TAB 1 2 The AVX listed by size in TAB 2 5750 can also be coupled in all pos sible combinations between 800 1915 720 1915 400 the Ti be SYSTEM DHW Y A A A COOLING HEATING side O 6 o 206 hydronic kits Gx e 3 E a N Y LN NRP POSSIBLE CONFIGURATIONS NRP POSSIBLE CONFIGURATIONS BE
23. 13 Domestic hot water storage tank DHW 14 System water storage tank respect the minimum water content see TAB 3 or in the event of low loads envision use to prevent continuous ON OFF of the compressors 15 16 TAB 3 Thermostatic valve Manometer Number of compressors 1000 1250 4 1400 1500 1650 4 4 4 4 Minimum water content admitted COLD SIDE 7 7 7 7 7 Minimum water content admitted the HOT SIDE 7 7 7 7 7 Recommended water content COOLING SIDE HEATING SIDE DHW 36 SIDE SYSTEM SIDE I KW 14 PH 14 WATER FEATURES Electric conductivity Chloride ions Sulphuric acid ions 14 14 14 14 6 8 Less than 200 mV cm 25 C Less than 50 ppm Less than 50 ppm Total iron Less than 0 3 ppm Alkalinity M Less than 50 ppm Total hardness Less than 50 ppm Sulphur ions none Ammonia ions None Silicone ions Less than 30 ppm 14 NRP 0800 1800 ATTENTION The choice and installation of components outside the NRP unit is the installer s responsibility who must operate according to the code of practice and in compliance with the Standard in force in the country of destination ATTENTION The hydraulic connection pipes to the machine must be suitably di mensioned for the effective water flow rate requested by the system when running The water flow rate to the heat exchanger must always be constant ATTENTION Wash the system t
24. 14 6 Water content dm 12 3 14 8 16 7 26 6 30 2 32 9 37 4 41 0 Hydraulic connections Vietaulic 3 3 s e lle Ole a i EXPANSION VESSEL DHW SIDE HYDRONIC KIT 2 PIPES SYSTEM HEATING SIDE 4 PIPES Expansion vessel Expansion vessel calibration LOWHEAD PRESSURE PUMP Input power 3 3 4 4 55 ss 55 55 inputcument A 62 62 ai si u u m no HIGH HEAD PRESSURE PUMP Input power 59 9 di 39 7 Jie Input current 14 6 14 6 14 6 STANDARD AXIAL FANS 22 Quantity 8 8 Air flow rate when cold Air flow rate when hot 126000 124200 122400 168000 117600 168000 165600 115920 165600 126000 124200 122400 168000 165600 Input current when cold Input current when hot 21 6 21 6 21 6 28 8 28 8 14 0 14 0 14 0 18 6 18 6 Input power when cold Input power when hot INVERTER AXIAL FANS J Static pressure Aermec code 5806765 00 12 02 NRP 0800 1800 SOUND DATA go 900 100 1250 1400 1500 1650 180 COOLING MODE OPERATION Sound pressure Sound power 56 5 56 5 56 5 51 83 51 83 83 5 HEATING MODE OPERATION Sound pressure Sound power R410 refrigerant 56 5 56 5 Oil DIMENSIONS WEIGHTS empty unit Height Width
25. 2 L3 and PE respecting the polarities 8 L1 L2 L3 as phases and PE as earth see figure 9 Re position the inspection panels 10 Ensure that all protections removed for the electric connection have been restored before powering the unit electrically 11 Position the system master switch outside the appliance at ON 2 Use a tester to verify that the value of the power supply voltage to the RST phases is equal to 400V 10 also verify that the unbalance between phases is no greater than 396 3 Check that the connections made by the installer are in compliance with the documentation 4 Verify that the compressor sump resistance s is are operating by measuring the increase in tem perature of the oil pan The resistance s must function for at least 12 hours before start up of the compressor and in any event the tempera ture of the oil pan must be 10 15 C higher than room temperature HYDRAULIC CIRCUIT 1 Check that all hydraulic connections are made correctly that the plate indications are complied with and that a mechanical filter has been installed at the evaporator inlet Mandatory component for warranty to be valid 2 Make sure that the circulation pump s is are operating and that the water flow rate is sufficient to close the flow switch contact 3 Check the water flow rate measuring the pressure difference between evaporator inlet and outlet and calculate the flow rate using the evaporator pressure dro
26. 35 2 40 27 EC EN 61000 6 1 2 3 4 ACOUSTIC PART T ISO DIS 9614 2 intensimetric method PROTECTION RATING IP24 REFRIGERANT GAS This unit contains fluoride gases with greenhouse effect covered by the Kyoto Protocol Maintenance and disposal must only be performed by qualified staff in compliance with standards in force ATTENTION Tampering removal lack of the identification plate or other does not allow the safe identification of the product and will make any installation or maintenance opera tion to be performed difficult 20 GENERAL WARNINGS AERMEC NRP heat pumps are manufactured according to the acknowledged technical standards and safety regulations They are designed for summer and winter conditioning and the production of domestic hot water Any contractual or extracontractual liability 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 indicated in this manual are prohibited 20 1 PRESERVATION OF THE DOCUMENTATION The instructions and all related documentation must be given to the user of the system who is responsible for preserving the same so that they are always on hand when required Read this file carefully the execution of all jobs must be performed by qualified staff according to the Standards in force on this subject in the different countries Ministerial Decree 329 2
27. AERMEC _ rw mmm air conditioning MULTIPURPOSE UNITS FOR 2 4 PIPE SYSTEMS Technical installation manual MULTIPURPOSE UNIT e OUTDOOR UNIT N RP 0800 1800 e HIGH EFFICIENCIES AERMEC COMPANY QUALITY SYSTEM ue e ua b MN ISO 9001 2008 Cert n 0128 cio ey Cras AERMEC S P A NRP 0800 1800 Dear Customer Thank you for choosing an AERMEC product This product is the result of many years of experience and indepth engineering research and it is built using top quality materials and advanced technologies In addition 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 our products and as a result AERMEC products are synonymous with Safety Quality and Reliability The data may be subject to modifications deemed necessary for improving the product at any time and with out forewarning Thank you again AERMECS p A AERMEC S p A reserves the right to make any modifications considered necessary to improve its products at any moment and is not obliged to add these modifications to machines that have already been manufactured delivered or are under construction Aermec code 5806765_00 12 02 NRP 0800 1800 1 1 1 2 3 1 3 2 3 9 3 4 2 9 4 1 4 2 4 3 5 1 5 2 5 3 5 4 5 5 5 6 6 1 6 2 8 1 8 2 9 1
28. B 3 in order to limit 1 The hourly number of inversions between operating modes 2 Dropin water temperature during winter defrost cycles 37 NRP 0800 1800 26 2 HYDRAULIC CIRCUIT INSIDE AND OUTSIDE THE NRP P1 P4 R1 R4 with COOLING and HEATING side pumps ATTENTION The choice and installation of NRP HYDRAULIC HYDRAULIC COMPONENTS SEN COMPONENTS RECOMMENDED OUTSIDE THE UNIT is the installer s responsibility who must operate according to the code of practice and in compliance with the Standard in force in the country of destination ATTENTION The hydraulic connection pipes to the machine must be suitably di mensioned for the effective water flow rate requested by the system when running The water flow rate to the heat exchanger must always be constant ATTENTION Wash the system thoroughly before connecting the unit This cleaning operation will eliminate any residues such as welding drips scale rust or other impurities from the piping These substances can also deposit inside and cause machine malfunctioning The connection piping must be adequately supported so that its weight is not borne by the appli 4 PIPE SYSTEM STANDARD NRP COMPONENTS FOR 2 PIPE SYSTEMS SUPPLIED AS PER STANDARD ance 1 Plate heat exchanger COLD WATER PRODUCTION SYSTEM SIDE 2 Plate heat exchanger HOT WATER PRODUCTION SYSTEM SIDE ATTENTION 3 Water filter supplied An appropriate load reintegrati
29. E NECESSARY QUALIFICATIONS BY LAW suitably trained and informed on the risks related to these operations The features of the electrical lines and of the related components must be determined by STAFF QUALIFIED TO DESIGN ELECTRICAL SYSTEMS in compliance with the international and national regulations of the place of installation of the unit and in compliance with the regulations in force at the time of installation For the installation requirements refer only to the wiring diagram supplied with the appliance The wiring diagram along with the manuals must be kept in good condition and ALWAYS BE AVAILABLE FOR ANY FUTURE INTERVENTIONS ON THE UNIT O O_o Oo of the nominal power supply voltage of the 27 1 ELECTRIC DATA TABLE machine for unbalanced three phase unit max 3 between the phases Whenever these pa The cable sections shown in the table are recommended ATTENTION rameters are not respected contact the electric for maximum lengths of 50 m It is prohibited to use the water energy public body For longer lengths or different cable laying it is up to pipes to earth the appliance 6 For electric connections use the cables with the DESIGN ENGINEER to dimension the double isolation according to the Standards in appropriate line switch the power supply line as well force on this subject in the different countries as the connection to the earth wire and connection ATTENTION cables depending on Check the tightening of all power THE
30. EY Pc Pe Ph AP 1 AP 2 AP 3 AP 4 AP 5 Qw 1 Qw 2 NOTE External air temperature 220 AP 1 210 AP 2 e E 1 80 APPS 1 70 o 6 1 60 AP 5 O 1 50 1 390 Kaes 1 40 c il Oo 1 30 280 Qw 1 D 1 20 1180 o i 1110 Qw 2 5 110 mS U 1 00 1000 Ph 0 99 0 990 Les E Pe 0 97 0 96 i 0 95 i 0 94 4 5 Og E 4 E 74 49 50 O 5 10 15 20 30 35 40 Glycol Temperature of produced water Cooling capacity correction factor Input power correction factor Heating capacity correction factor Correction factor for pressure drops with an average fluid temp 3 5 C Correction factor for pressure drops with an average fluid temp 0 5 C Correction factor for pressure drops with an average fluid temp 5 5 C Correction factor for pressure drops with an average fluid temp 9 5 C Correction factor for pressure drops with an average fluid temp 47 5 C Correction factor for flow rates evap with an average fluid temp 9 5 C Correction factor of flow rates condenser with an average fluid temp 47 5 C Although the graph shows an external air temperature of 40 C the unit operational limits must be complied with 23 15 EXPANSION VESSEL CALIBRATION 14 1 1 Expansion vessel ca
31. FOLLOWING ARE MANDATORY e the length wire clamps on commissioning 1 The use of an omnipolar magnet circuit breaker e the type of cable and after 30 days from start up switch is mandatory in compliance with the e the absorption of the unit and the physical loca Successively check them every six IEC EN Standards contact opening at least 3 tion and also the environment temperature months Loose terminals can cause overheating of the cables and components mm with suitable cut off power and differential protection on the basis of the electric data table shown below installed as near as possible to the appliance 2 It is mandatory to make an effective earth connection The manufacturer is not liable for any damage caused by the lack of or ineffective appliance earth connection 3 For units with three phase power supply check the correct connection of the phases ni RECOMMENDED CABLE CROSS SECTION L R A F L A SEC A SEC B EARTH IL mm A NRP SIZE Power supply Fans n Compressors n 0900 400V 3 50Hz 4 404 195 3 1 95 3 1 5 50 250 iom ama so as us m ss 1400 400V 3 50Hz 5 6 505 296 3 1 120 3 1 5 70 315 1500 400V 3 50Hz 6 6 534 325 3 1 185 3 1 5 95 350 1650 400V 3 50Hz 6 8 633 365 3 2 185 6 L5 150 400 oo eta 5 666 ss0 3 2 iss 6 Lis 150 Lan KEY ELI Maximum input power 3 N 3 phases neutral F L A Maximum input curre
32. MODE SYSTEM SIDE IN COOLING MODE SYSTEM SIDE kPa 250 CH CH CH CH CH CH CH CH CH CH CH LO CH O LN CH co o o N st Ln Co 00 O CH e a a OO 00 00 co Jin wo n m o o o o o o o 98 888358 Ed 9JnssoJd 213635 NJ SN CH CH CH CH CH CH CH CH Ln o o Ln CH oo o N LN Co 00 O o a e a OO OOo OOO 1 o Q O O n O n N a ed eJnssaJd peau jnjasn 0 20 000 30 000 40 000 50 000 60 000 70 000 80 000 90 000 100 000 20 000 30 000 40 000 50 000 60 000 70 000 80 000 90 000 100 000 Water flow rate l h Water flow rate l h DHW SIDE LOW HEAD PRESSURE PUMPS 2 PIPES HEATING SIDE 4 PIPES 13 3 3 0800 2 0900 1000 1250 S 1400 S 1500 G 1650 1800 250 200 O LO 100 O Lf e ed eJnssaJd peau njasn 40000 60000 80000 100000 120000 140000 20000 Water flow rate l h DHW SIDE HIGH HEAD PRESSURE PUMPS 2 PIPES HEATING SIDE 4 PIPES 13 4 ed eJnssaJd 911875
33. NG 87 75 IP ELECTRICAL DATA Power supply V ph Hz 400V 3 50Hz 196 235 Total input current 211 251 Maximum current FLA Initial starting current LRA COOLING 2 HEATING Evaporator inlet water temperature 12 C Condenser inlet water temperature Evaporator outlet water temperature ZE Condenser outlet water temperature External air temperature 35 C External air temperature 267 296 535 505 3 COOLING with recovery DHW system side 40 C Recovery outlet water temperature 45 C 45 C Evaporator outlet water temperature T C 7 C d b 6 C w b At water 5 C 1 DHWSIDE SYSTEM SIDE DHW side production of domestic hot water in 2 pipe systems System side production of hot water in 4 pipe systems Aermec code 5806765_00 12 02 15 VERSION H TECHNICAL DATA VERSION H TECHNICAL DATA SCROLL COMPRESSORS NRP 0800 1800 800 900 1000 1250 1400 1500 1650 1800 Quantity circuit SYSTEM SIDE HEAT EXCHANGER 4 2 4 2 4 2 4 2 5 2 6 2 6 2 6 2 Water content Hydraulic connections Victaulic WEE E NC 1 3 EXPANSION VESSEL 10 5 12 3 16 7 26 6 Expansion vessel Expansion vessel calibration LOW HEAD PRESSURE PUMP Input power Input current HIGH HEAD PRESSURE TD Input power Input current DHW SYSTEM SIDE HEAT EXCHANGER S S 14 6 14 6
34. ONS POSITION vers P1 P4 R1 R4 di y antis ER D DHW side heating system side in ENIM A pumps unit a 4 VICTAULIC CONNECTIONS lis X Qoi heating system side pumps unit 4 VICTAULIC CONNECTIONS 32 Aermec code 5806765 00 12 02 NRP 0800 1800 24 7 NRP 1400 1500 MINIMUM TECHNICAL SPACES NRP 0800 1800 1100 mm NN 24 8 NRP 1400 1500 HYDRAULIC CONNECTIONS POSITION vers 00 24 9 NRP 1400 1500 HYDRAULIC CONNECTIONS POSITION vers P1 P4 R1 R4 E pn 3 O d 4 ket A Oo 808 550 119 1806 Aermec code 5806765_00 12 02 2450 DHW side heating system side exchanger o 4 VICTAULIC CONNECTIONS Cooling and heating system side exchanger 4 VICTAULIC CONNECTIONS 2200 DHW side heating system side pumps unit 4 VICTAULIC CONNECTIONS coing heating system side pumps unit 4 VICTAULIC CONNECTIONS 33 NRP 0800 1800 24 10 NRP 1650 1800 MINIMUM TECHNICAL SPACES NRP 0800 1800 1100 mm NN 24 11 NRP 1650 1800 HYDRAULIC CONNECTIONS POSITION vers 00 E 2450 280 568 DHW side heating system side exchanger 4 VICTAULIC CONNECTIONS O co
35. TRUCTURE Structure made of hot dipped galvanised steel sheets painted with polyester powders built to guarantee easy accessibility for service and maintenance STANDARD FANS Axial fans with IP 54 degree of protection external rotor helical blades housed in nozzles complete with accident prevention protective screen 6 pole electric motor with built in magnet circuit breaker INVERTER ENHANCED CAPACITY FANS System 4 pipe Heating Cooling side side Supplied No As per standard No As per standard As per standard As per standard As per standard As per standard As per standard Air vent valve As per standard As per standard As per standard As per standard Expansion vessels 2x25 12 As per standard As per standard As per standard As per standard Aermec code 5806765_00 12 02 NRP 0800 1800 5 9 STANDARD HYDRAULIC CIRCUIT WATER FILTER SUPPLIED mounted in the version with pump it is supplied for the other versions Equipped with steel filtering mesh prevents the heat exchangers both of the system side and the DHW heating system side from clogging FLOW SWITCH They have the task of controlling that there is water circulation inside the heat exchangers if this is not the case they block the unit 5 3 1 Components of hydraulic circuit in configurable versions PUMPS High or low head pressure VENT VALVES Mounted on the upper part of the hydraul
36. TWEEN BETWEEN HYDRONIC KITS HYDRONIC KITS 0800 1250 R 1000 recovery hydronic unit 1800 recovery hydronic unit R3 R4 R4 S SDgr ok na S SDgr ok S P1 ok na Se Pl ok oc lt C E 3 P2 ok na E 3 P2 ok ll ll S P3 ok na S P3 ok P4 ok na P4 ok 30 Aermec code 5806765_00 12 02 NRP 0800 1800 24 DIMENSIONS HYDRAULIC CONNECTIONS 24 1 NRPO800 1000 MINIMUM TECHNICAL SPACES NRP 0800 1800 1100 mm AS N 24 3 NRPO800 1000 HYDRAULIC CONNECTIONS POSITION vers 00 DHW side heating system side exchanger 3 VICTAULIC CONNECTIONS O cooling and heating system side D exchanger 2 3 VICTAULIC CONNECTIONS les iH ET L _ lig Q Em d SA ES x 100 2200 24 2 P4 R1 R4 Aermec code 5806765_00 12 02 Au side heating system side pumps unit 3 VICTAULIC CONNECTIONS O coing heating system side pumps unit 3 VICTAULIC CONNECTIONS 31 NRP 0800 1800 24 4 NRP 1250 MINIMUM TECHNICAL SPACES NRP 0800 1800 1100 mm NN 24 5 NRP 1250 HYDRAULIC CONNECTIONS POSITION vers 00 2450 2200 Ow side heating system side exchanger 4 VICTAULIC CONNECTIONS O cooling and heating system side exchanger 4 VICTAULIC CONNECTIONS 24 6 NRP 1250 HYDRAULIC CONNECTI
37. VERSING VALVE 4 way cycle reversing valve Inverts the flow of refrigerant gas System 2 pipe System DHW Supplied No As per standard No VERSIONS WITH PUMPS ONLY the more complete versions are described Filter Pump s Drain valve As per standard As per standard As per standard As per standard As per standard As per standard NRP 0800 1800 LIQUID STORAGE TANK always passed through It compensates the difference in volume between finned coil and plate exchanger retaining excess liquid DEHYDRATOR FILTER Hermetic mechanical with ceramic and hygroscopic material cartridges able to withhold impurities and any traces of humidity present in the cooling circuit NON RETURN VALVES Allow one way flow of the refrigerant THERMOSTATIC VALVE Mechanical valves with external equaliser positioned at evaporator outlet they modulate the flow of gas to the evaporator depending on the heat load in order to ensure a correct heating level of the intake gas SOLENOID VALVES The valve closes when the compressor switches off blocking the flow of refrigerant gas to the evaporator recovery device and the coil LIQUID SEPARATOR Positioned at compressor intake to protect from any liquid refrigerant return flooded start up and operation with the presence of liquid LIQUID PASSAGE INDICATOR WITH HUMIDITY PRESENCE SIGNAL Used to check presence of humidity in cooling circuit 5 2 STRUCTURE AND FANS SUPPORT S
38. determines sound power values on the basis of measurements made in compliance with the 9614 2 Standard in agreement with that requested by Eurovent certification Sound pressure Sound pressure in free field conditions with reflective surface directivity factor Q 2 in compliance with ISO 3744 Standard Cooling mode The HE version is low noise with temperature 12 7 C 35 C Heating mode The HE version is low noise witth temperature gt 25 26 NRP 0800 0900 1000 VERS Total sound levels Octave band Hz NRP 0800 1800 Pow Pressure y dB A dB A dB A 10m 1m COOLING MODE OPERATION 125 250 500 1000 2000 4000 8000 Sound power for central band frequency dB A 1250 1400 1500 1650 84 79 5 1800 0800 0900 87 5 81 8 1000 1250 1400 1500 101 87 93 5 89 86 1650 92 5 1800 HEATING MODE OPERATION 95 HA 0800 r3 99 5 875 845 83 765 72 64 0900 995 875 845 83 765 72 64 1000 HE 98 87 67 1250 93 5 87 5 822 76 652 1400 90 86 87 79 71 64 1500 89 86 85 79 65 1650 HE 92 60 735 101 925 885 87 81 73 66 1800 HE 102 67 0900 87 5 72 64 1000 87 75 1 67 1250 93 5 76 65 2 1400 HA 86 64 1500 89 65 1650 ES 92 5 73 66 1800 95 73 67 Aermec code 5806765_00 12 02 NRP 0800 1800 19
39. e notified body n 1131 CEC via Pisacane 46 Legnano MI Italy The person authorised to draw up the technical file is Massimiliano Sfragara 37040 Bavilacqua VR Italy Roma 996 Bevilacqua 09 01 2012 Marketing Manager Signature Gr Aermec code 5806765 00 12 02 E O LA un St L O LLJ E Standards complied with WHEN DESIGNING and CONSTRUCTING the unit SAFETY il Machinery directive 2006 42 EC 2 Low voltage directive LVD 2006 95 EC 3 Electromagnetic compatibility directive EMC 2004 108 EC 4 Directive regarding pressurised devices PED 97 23 EC EN 378 Do UNI12735 UNI14276 ELECTRIC PART 1 IEC EN 60335 2 40 27 EC EN 61000 6 1 2 3 4 ACOUSTIC PART d ISO DIS 9614 2 intensimetric method PROTECTION RATING IP24 REFRIGERANT GAS This unit contains fluoride gases with greenhouse effect covered by the Kyoto Protocol Maintenance and disposal must only be performed by qualified staff in compliance with standards in force 1 DESCRIPTION OF THE UNIT Multipurpose OUTDOOR units for 2 or 4 pipe systems especially designed for simultaneous autonomous production of cold and hot water AVAILABLE VERSIONS 1 1 FOR 2 PIPE SYSTEMS The multipurpose 2 pipe units have been made to respond to the demands of hotels where there is a high cold hot water and DHW demand throughout the year The operating modes are SUMMER OPERATION 1 Cold water production at system 2 P
40. eat exchanger COLD WATER PRODUCTION SYSTEM SIDE Plate heat exchanger HOT WATER PRODUCTION SYSTEM SIDE Water filter supplied Flow switch mounted Vi W NIR Water temperature probes IN OUT RECOMMENDED COMPONENTS NOT SUPPLIED FOR WHICH INSTALLER IS RESPONSIBLE Pumps Air vent valve Safety valve L ONI O Expansion vessel 10 Drain cock 11 Anti vibration joints 12 Cut off cocks 13 Domestic hot water storage tank DHW 14 System water storage tank respect the minimum water content see TAB 3 or in the event of low loads envision use to prevent continuous ON OFF of the compressors 15 Thermostatic valve 16 Manometer TAB 3 0800 1000 1250 1400 1500 1650 1800 Number of compressors n 4 4 4 4 4 4 4 Minimum water content admitted COLD SIDE 7 7 7 7 7 7 7 Minimum water content admitted the HOT SIDE 7 7 7 7 7 7 7 Recommended water content COOLING SIDE HEATING SIDE 1 kW 14 14 14 14 14 14 14 WATER FEATURES PH Electric conductivity 6 8 Less than 200 mV cm 25 C Chloride ions Sulphuric acid ions Less than 50 ppm Less than 50 ppm Total iron Less than 0 3 ppm Alkalinity M Less than 50 ppm Total hardness Less than 50 ppm Sulphur ions none Ammonia ions None Silicone ions Less than 30 ppm Aermec code 5806765_00 12 02 ATTENTION The choice and installation of components outside the NRP unit is the in
41. ed COLD SIDE 7 7 7 7 7 7 7 Minimum water content admitted the HOT SIDE 7 7 7 7 7 7 7 Recommended water content COOLING SIDE HEATING SIDE I KW 14 14 14 14 14 14 14 WATER FEATURES PH 6 8 Electric conductivity Less than 200 mV cm 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 Total hardness Less than 50 ppm Sulphur ions none Ammonia ions None Silicone ions Less than 30 ppm Aermec code 5806765 00 12 02 ATTENTION The choice and installation of components outside the NRP unit is the installer s responsibility who must operate according to the code of practice and in compliance with the Standard in force in the country of destination LLJ ER gt LL ER N ATTENTION The hydraulic connection pipes to the machine must be suitably dimensioned for the effective water flow rate requested by the system when running The water flow rate to the heat exchanger must always be constant ATTENTION Wash the system thoroughly before connecting the unit This cleaning operation will eliminate any residues such as welding drips scale rust or other impurities from the piping These substances can also deposit inside and cause machine malfunctioning The connection piping must be adequately supported so that its weight is not borne by the appli ance ATTENTION An appropriate load reint
42. egration system must be prepared which is engaged on the return line along with a drain cock in the lowest part of the system Water disconnectors must be used in systems loaded with anti freeze or where particular legal provisions apply Particular supply reintegration waters must be conditioned with appropriate treatment systems The water features provided in the table can be used as a reference ATTENTION It is prohibited to release water glycol mixtures into the environment ATTENTION It is recommended to design systems with high water content minimum recommended values shown in TAB 3 in order to limit 1 The hourly number of inversions between operating modes 2 Drop in water temperature during winter defrost cycles 35 Lid I un gt un Lid N 25 2 HYDRAULIC CIRCUIT INSIDE AND OUTSIDE NRP VERSION WITH P1 P4 R1 R4 PUMPS NRP HYDRAULIC COMPONENTS HYDRAULIC COMPONENTS RECOMMENDED OUTSIDE THE UNIT STANDARD NRP COMPONENTS FOR 2 PIPE SYSTEMS SUPPLIED AS PER STANDARD Plate heat exchanger SYSTEM SIDE Total recovery DHW SIDE Water filter mounted Flow switch mounted Water temperature probes IN OUT ONDQDUIUA WNE Pump Air vent valve Expansion vessel E e Drain cock IE N 8 Cut off cocks RECOMMENDED COMPONENTS NOT SUPPLIED FOR WHICH INSTALLER IS RESPONSIBLE Safety valve 11 Anti vibration joints
43. ention in correspondence of the calibration value Atten tion if there is no intervention at the calibration value stop the compressor immediately and check the cause Reset is manual and can only take place when the pressure drops below the differential value For the set and differential values consult the technical manual Theanti freeze control The anti freeze control managed by electronic regulation and by the temperature probe located at the evaporator outlet is to prevent the formation of ice when the water flow rate is too low Correct operation can be checked by progressively increasingly the anti freeze set point until it exceeds the outlet water temperature and keeping the water temperature controlled with a high precision ther mometer verify that the unit is off and generates the respective alarm After this operation take the anti freeze set point back to its original value 30 6 WATER FLOW RATE ALARM The unit manages a water flow rate alarm controlled by a pressure switch or flow switch installed as per standard on the machine This type of safety device can intervene after the first 30 seconds of pump opera tion if the water flow rate is not sufficient The intervention of this alarm determines compressor and pump block A ATTENTION 11 This anti freeze set tempera ture can only be varied by an authorised after sales centre and only after having checked that there is anti freeze solu tion in the wate
44. ercentage of glycol on the basis of the external air temperature enter from the left axis and on reaching the curve draw a vertical line which in turn will intercept all the other curves the points obtained from the upper curves represent the coefficients for the correction of the cooling capacity and input power the flow rates and the pressure drops remember that these coefficients must be multiplied by the nominal value of the size in question while the glycol percentage value recommended to produce desired water temperature is on the lower axis f you wish to calculate the percentage of glycol on the basis of the temperature of the water pro duced enter from the right axis and on reaching the curve draw a vertical line which in turn will intercept all the other curves the points obtained from the upper curves represent the coefficients for the correction of the cooling capacity and input power the flow rates and the pressure drops remember that these coefficients must be multiplied by the nominal value of the size in question while the lower axis recommends the glycol percentage value necessary to produce water at the desired temperature Remember that the initial EXTERNAL AIR TEM PERATURE and TEMPERATURE OF PRODUCED WATER values are not directly related therefore it is not possible to refer to the curve of one of these values and obtain corresponding point on the other curve Aermec code 5806765 00 12 02 K
45. etwork AERWEB300 6G Web server to monitor and remote AVX ANTI VIBRATION MOUNTS control max 6 units in RS485 network with integrated Group of anti vibration mounts GPRS modem AERWEB300 18G Web server to monitor and remote control max 18 units in RS485 network with SS eu ou oF oa e CR CW D GP PROTECTION GRIDS integrated GPRS modem Protect the external coil from blows and prevent access to the underlying area where the compressors and the DRE cooling circuit are housed Every kit includes two grids Initial starting current reduction electronic device ap proximately 26 in dual circuit Available only with 6 2 ELECTRIC ACCESSORIES 400 V power supply Can only be applied in the factory n AER485P1 RIF D RS 485 interface for supervising systems with MODBUS Current rephaser Connected in parallel to the motor it eux p protocol allows a reduction of the input current approx 10 a It can only be installed in the factory and so must be B PGD1 requested on ordering Graphical display which allows complete manage ment of the unit like the one on board the machine Can be controlled up to 50 m away with a telephone cable 200 m with a shielded AWG 24 cable AERWEB300 Accessory AERWEB allows remote control of a chiller through a common PC and an ethernet connection over a common browser 4 versions available AERWEB300 6 Web server to monitor and remote NRP 0800 0900 1000
46. f the compressor must be 30 40 C above the conden sation temperature gone into normal working conditions the flow meter control functions are activated if envisioned Below find the compressor start up procedure by switching the source side pump on with flow meter check if enabled after 20 seconds Whenever alarms do not occur the compressor starts 30 5 ANTI FREEZE ALARM The anti freeze alarm is active if the machine is off or in stand by mode In order to prevent the heat exchanger from breaking due to the water it contains freezing envision compressor block if the machine is on below 3 5 C and ignition of the resistance if in stand by below 5 C If the temperature detected by the probe positioned at heat exchanger output and at chiller inlet is less than 3 8 C The intervention of this alarm determines compres sor 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 the differential Rearm is manual NRP 0800 1800 CONTROL AND SAFETY DEVICES CHECK The manual reset high pressure switch That stops the compressor generating the respective alarm when the flow pressure exceeds the set point value Its correct operation can be controlled by closing the air intake to the exchanger in cooling mode and keeping the high pressure manometer under control check the interv
47. ger e DHW SYSTEM y SUPPLY H O Operation Key EVAPORATION 1 System side heat exchanger Cold water production 2 DHW side heat exchanger CONDENSATION 3 Source side heat exchanger DHW production AL Liquid storage tank Not running CV One way valve F Dehydrator filter IDL Liquid indicator HPT High pressure transducer HPS High pressure switch LPT Low pressure transducer LS Liquid separator TEV Thermostatic valves VIC Cycle reversing valves 2 PIPE SYSTEM Lid E un gt un Lit G N LLJ E un gt un LA E st 3 5 CIRCUIT FOR PRODUCING HOT WATER TO SYSTEM CIRCUIT FOR PRODUCING HOT WATER TO DHW NRP 0800 1800 DHW SYSTEM SUPPLY H O Description Operation 2 DHW SIDE heat CONDENSATION exchanger DHW production SOURCE SIDE heat EVAPORATION exchanger 4 BASIC OPERATING LAYOUTS FOR 4 PIPE SYSTEM 4 1 COLD WATER PRODUCTION ONLY TO SYSTEM Description SYSTEM SIDE heat ex changer DHW SIDE heat exchanger SOURCE SIDE heat ex changer N 10 Operation EVAPORATION Cold water production not running CONDENSATION Heat exchange with air Heat exchange with air Operation CONDENSATION Hot water production H O SYSTEM o 4 BEES Description SYSTEM SIDE heat exchanger SYSTEM SIDE heat exchanger H O SYSTEM RETURN H O SYSTEM FLOW EVAPORATION Heat exchange with air
48. horoughly before connecting the unit This cleaning operation will eliminate any residues such as welding drips scale rust or other impurities from the piping These substances can also deposit inside and cause machine malfunctioning The con nection piping must be adequately supported so that its weight is not borne by the appliance ATTENTION An appropriate load reintegration system must be prepared which is engaged on the return line along with a drain cock in the lowest part of the system Water disconnectors must be used in systems loaded with anti freeze or where particular legal provisions apply Particular supply reintegration waters must be conditioned with appropriate treatment systems The water features provided in the table can be used as a reference ATTENTION It is prohibited to release water glycol mixtures into the environ ment ATTENTION It is recommended to design systems with high water content minimum recommended values shown in TAB 3 in order to limit 1 The hourly number of inversions between operating modes 2 Drop in water temperature during winter defrost cycles Aermec code 5806765_00 12 02 NRP 0800 1800 26 26 1 BASIC 4 PIPE SYSTEM HYDRAULIC CIRCUITS NRP HYDRAULIC COMPONENTS INTERNAL AND EXTERNAL HYDRAULIC CIRCUIT TO NRP 00 HYDRAULIC COMPONENTS RECOMMENDED OUTSIDE THE UNIT STANDARD NRP COMPONENTS FOR 4 PIPE SYSTEMS SUPPLIED AS PER STANDARD Plate h
49. ic connections position vers P1 P4 R1 R4 33 NRP 1650 1800 minimum technical spaces 34 NRP 1650 1800 hydraulic connections position vers 00 34 NRP 1650 1800 hydraulic connections position vers P1 P4 R1 R4 34 Basic 2 pipe system hydraulic circuits 35 Hydraulic circuit inside and outside 00 version NRP 35 Hydraulic circuit inside and outside NRP version with P1 P4 Rond PUMPS andanada 36 Basic 4 pipe system hydraulic circuits 37 Internal and external hydraulic circuit to NRP 00 37 Hydraulic circuit inside and outside the NRP P1 P4 R1 R4 with cooling and heating side poumpsl n 38 nidi 39 A RR nan 39 EIECHrIECONNECHONS cri 40 Electric data io AR M 40 Preparation for commlssloning esee 41 Start UD M e 41 Machine commissioning ricino 41 Electric power connection to the electrical mains 41 Control and COMMISSIONING aan kk 41 Operating features rai 42 Set point in cooling Mode a 42 Set point in heating mode sonic 42 Compressor start up delay enanas 42 COUDES mean me ann 42 Anti freeze alarm rra ida an 42 Water flow rate Main 42 Switch on and use of unit arr 43 Menu structure id ne 43 Accessory connections 00 00 0000 eens sn ns 44 NRP 0800 1800 4 Aermec code 5806765_00 12 02
50. ic system they discharge any air pockets present in the same EXPANSION VESSELS 2X25 With nitrogen pre load membrane 5 4 CONTROL AND SAFETY COMPONENTS MANUALLY RESET HIGH PRESSURE SWITCH With fixed calibration placed on high pressure side of cooling circuit inhibits compressor operation if abnormal work pressure occurs LOW PRESSURE TRANSDUCER Positioned on the low pressure side of the cooling circuit it informs the control board of the work pressure generating a pre alarm in the event of anomalous pressure HIGH PRESSURE TRANSDUCER Positioned on the high pressures side of the cooling circuit it informs the control board of the work pressure generating a pre alarm in the event of anomalous pressure COOLING CIRCUIT SAFETY VALVES They intervene by discharging the overpressure in the event of anomalous pressures Calibrated at 45 bar on HP branch Calibrated at 30 bar on LP branch DCPX CONDENSATION PRESSURE CONTROLLER This accessory allows correct operation with external temperatures lower than 10 C and as low as 10 C It is made up from a regulation circuit board that changes the number of fan revs on the basis of the condensation pressure read by the high pressure transducer in order to keep it sufficiently high for correct unit operation It also allows correct operation in heating mode with external temperatures exceeding 30 C and up to 42 C 5 5 ELECTRIC CONTROL BOARD Electric contr
51. id separator TEV Thermostatic valves VIC Cycle reversing valves 11 STANDARD HYDRAULIC CIRCUIT ON ALL VERSIONS Filter Flow switch 5 DESCRIPTION OF COMPONENTS 5 1 COOLING CIRCUIT SCROLL COMPRESSORS Hermetic scroll rotary compressors All compressors come with casing resistance electronic thermal protec tion with centralised manual rearm and two pole electric motor SYSTEM SIDE COOLING HEATING EXCHANGER Braze welded AISI 316 steel plate exchanger insulated externally with closed cell neoprene anti condensation material When the unit is not running an electric resistance is used for protection against the formation of ice inside 5 1 1 WATER FEATURES PH 6 8 Electric conductivity Less than 200 mV cm 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 Total hardness Less than 50 ppm Sulphur ions none Ammonia ions None Silicone ions Less than 30 ppm DHW SIDE EXCHANGER 2 pipes SYSTEM HEATING SIDE 4 pipes Braze welded AISI 316 steel plate exchanger insulated externally with closed cell neoprene anti condensation material When the unit is not running an electric resistance is used for protection against the formation of ice inside SOURCE SIDE EXCHANGER Finned pack heat exchanger made with copper pipes and aluminium fins adequately spaced to ensure better heat exchange performance CYCLE RE
52. ility inlet water temperature e Thermostatic expansion valve too open or damaged High intake pressure e Check the operational limits using the graphics e Adjust or replace if damaged e Low utility water inlet temperature e Low external water inlet temperature e Thermostatic expansion valve damaged or blocked Low intake pressure e Insufficient water flow e Insufficient air flow Aermec code 5806765 00 12 02 e Check the operational limits using the graphics e Adjust or replace if damaged e Check 1 Fan operation 2 Cleanliness of the coils 3 Pump operation speed 4 Filter cleanliness 45 NRP 0800 1800 46 Aermec code 5806765_00 12 02 NRP 0800 1800 Aermec code 5806765_00 12 02 47 A E MEC AERMEC S p A 37040 Bevilacqua VR Italy Via Roma 996 Tel 39 0442 633111 IE Telefax 0442 93730 39 0442 93566 mme prima per il clima www aermec com info aermec com The technical data given in this documentation is not binding Aermec reserves the right to make all modifications deemed necessary for improving the product at any time AERMEC COMPANY QUALITY SYSTEM ww e LI a ow a ICIM ISO 9001 2008 Cert n 0128 AERMEC S P A
53. jnjasn 160000 140000 Water flow rate l h Aermec code 5806765 00 12 02 22 NRP 0800 1800 14 ETHYLENE GLYCOL SOLUTION The cooling capacity and input power correction factors take the presence of glycol and the different evaporation temperature into account The pressure drop correction factor considers the different flow rate resulting from the application of the water flow rate correction factor The water flow rate correction factor is calculated in a way to keep the same At that would be present with the absence of glycol NOTE An example is given on the next page to help graph reading The diagram below can be used to establish the percentage of glycol necessary this percentage can be calculated by taking one of the following factors into consideration Depending on which fluid is considered water or air the graph is interpreted from the right or left side A point is obtained from the intersection point of the external temperature line or the water produced line and the relative curves through which the vertical line must pass that will identify both the glycol percentage and the relative correction coefficients 14 1 HOW TO INTERPRET GLYCOL CURVES The curves shown in the diagram summarise a signifi cant number of data each of which is represented by a specific curve In order to use these curves correctly it is first necessary to make some initial reflections f you wish to calculate the p
54. k Noise and vibrations e Weak support e Restore e Loose screws e Excessive flow pressure e Low intake pressure e Low power supply voltage e Electric connections fastened badly e Operation outside of operational limits e Pressure switch malfunctioning The compressor stops due to intervention of the protections e Circuit breaker protection intervention e High external water temperature e High utility water inlet temperature e Insufficient air flow Compressor high discharge pressure e Insufficient water flow e Tighten the screws e Check the operational limits using the graphics e Replace the component e Check power supply voltage e Check electric isolation of the windings e Check the operational limits using the graphics e Check 1 Fan operation 2 Cleanliness of the coils 3 Pump operation speed 4 Filter cleanliness e Fan regulation anomalous operation e Airin the hydraulic system e Bleed the circuit e Excessive refrigerant gas load e Low external air temperature e Low inlet water temperature Low discharge pressure e Humidity in the cooling circuit e Check or replace if broken e Restore the correct load e Check the operational limits using the graphics as above e Empty and restore the gas load e Air in the hydraulic system e Bleed the circuit e Insufficient gas load e Restore the correct load e High external air temperature e High ut
55. libration Standard factory set pressure value of the expansion vessel is 1 5 bar whereas volume is 24 litres Maximum value 6 bar Vessel calibration must be regulated depending on the maximum level difference H of the user see diagram in agreement with the following formula p calibration bar H m 10 2 0 3 For example if level difference H is equal to 20 m the calibration value of the vessel will be 2 3 bar If the calibration value obtained from formula is less than 1 5 bar i e for H lt 12 25 keep standard calibration 16 MINIMUM WATER CONTENT NRP Number of compressors Minimum water content admitted COLD SIDE Ptar H 10 2 0 3 KEY 1 Check that highest installation is not high H max 1 55 m H 12 25 m iin des de O H min 2 er than 55 metres 2 Ensure that lowest installation can with stand global pressure in that position 0800 1000 1250 1400 1500 NRP 0800 1800 1650 1800 Minimum water content admitted the HOT SIDE Recommended water content COOLING SIDE HEATING SIDE ATTENTION It is recommended to design systems with high water content minimum recommended values shown in table in order to limit 1 The hourly number of inversions between operating modes 2 Drop in water temperature during winter defrost cycles 24 I KW 14 14 14 14 14 14 14 Aermec code 5806765 00 12 02 NRP 0800 180
56. meters takes place by 1 Pressing the Prg key to enter the menu selec tion mode 2 Pressthe amp keys on the right side of the panel to browse these keys are also used to modify the selected parameters 31 1 MENU STRUCTURE A IN OUT MENU Temperature pressures etc of the various unit components B ON OFF MENU Switches the unit on or off and sets its operating mode summer winter and any time periods 2 PIPE VERSIONS C PLANT MENU Management of the chiller standard energy saving work set point parameters D DHW SYSTEM MENU Parameters management set point consent temperature time periods etc 4 PIPE VERSIONS C COOLED WATER MENU Management of the chiller standard energy saving set point parameters in cooling mode D HOT WATER MENU Management of the chiller standard energy saving set point parameters in heating mode E CLOCK MENU Manages all parameters linked to system time hour date etc F SUPPORT MENU Protects the after sales assistance menu with password request G MANUFACTURER MENU Protects the manufacturer menu with password request Note For further information refer to the user manual MENU STRUCTURE 43 O LUI Val ec TT 72 gt 0 8 m 32 44 ACCESSORY CONNECTIONS Shielded cable AWG24 2 twisted pair KIT PGD1 200 m ACCESSORY i J1 power supply NRP 0800 1800 Telephone cable J3 analog i
57. nal 19 Correction factors for data different to nominal in heating mode 20 Yields and absorption different to nominal 20 Recovered heating capacity correction coefficients 20 Total pressure drops 2 4 pipe units eee 21 System side cold water production 2 pipeS 21 When operating with dhw side recovery 2 pipes system side hot water production 4 pipeS 21 System side hot water production 2 pipes 21 Useful head pressures 2 4 pipe system 22 Low head pressure in cooling mode system side 22 Dhw side low head pressure pumps 2 pipes heating side 4 pipes lalla 22 Dhw side high head pressure pumps 2 pipes heating side 14 pipes ninia 22 High head pressure in cooling mode system side 22 Ethylene glycol solution aaaaaaaannt ssnnnnnnnnnnnnnnnnnnnnannnnnnnnnnnnnnm 23 How to interpret glycol curves trees 23 Expansion vessel calibration 24 Minimum water content aaaaaaaaaaannntnnnnnnnnannnnnnnnnnnnnnnnnnnnnnnnnuum 24 Partialisations aaaaaaaannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnum 25 A ERF A 26 Calibrations of safety and control parameters 27 Aermec code 5806765_00 12 02 20 20 1 20 2 20 3 20 4 21 22 22 1
58. nput CH NO1 NO2 NO3 ZI l J12 group 1 day l O Del Deal J13 group 1 day 191 J14 group 2 g Telephone cable AT C2 J4 digital input NO4 NO5 NO6 o o e e gt J15 group 3 J5 analog output J18 analog input m gt a E N o D I D gt TD I I N oO RS485P1 serial board ACCESSORY Aermec code 5806765 00 12 02 NRP 0800 1800 ANOMALY CAUSE REMEDY e No electric voltage e Master switch at OFF e Remote switch at OFF if present e Control panel at OFF The unit does not start e Main switch at OFF e Compressor magnet circuit breaker at OFF e Power supply voltage too low e Remote control switch coil broken e Circuit board broken e Peak condenser broken e Compressor broken e Check the presence of voltage e Check the safety systems upstream from the appli ance e Position at ON e Check power supply line e Replace the component e Norefrigerant e Dirty coils e Water filter clogged e Appliance dimensioning e Operation outside of operational limits Insufficient yield e Check the load and any leaks e Clean the coils e Clean the filter e Check e Check the operational limits using the graphics e Liquid return to the compressor e Inadequate fixing e Inverted phase Noisy compressor e Check e Invert a phase e Contacts between metal bodies e Chec
59. nt Sec B Controls and safety device connection L R A Initial starting current EARTH Earth wire to connect to unit Sec A Power supply IL Master switch 40 Aermec code 5806765 00 12 02 NRP 0800 1800 Holes for passage of electric cables ATTENTION Before carrying out the controls indi cated below make sure that the unit is disconnected from the mains electric ity Make sure that the master switch is locked in the OFF position and an appropriate sign is affixed Before start ing the operations use a voltmeter or a phase indicator to check that there is no voltage present e Fig 1 Aermec code 5806765 00 12 02 28 ELECTRIC POWER CONNECTION TO THE ELECTRICAL MAINS 1 Before connecting the unit to the power supply mains make sure that the isolating switch is open 2 Openthe front panel 3 Usethe plates to pass the main electric power supply cable and the cables of the other external connections under the responsibility of the installer 4 Itis prohibited to access positions not specifi cally envisioned in this manual with electric cables 5 Avoid direct contact with non insulated copper piping and with the compressor 6 Identify the clamps for the electric connec 29 CONTROL AND COMMISSIONING 27 2 PREPARATION FOR COMMISSIONING Please note that on request by the Aermec customer or the legitimate owner of the machine the units in this series can be started up by the AERMEC After
60. ol board incompliance with EN 60204 1 IEC 204 1 Standards complete with transformer for the control circuit door lock main isolating switch fuses and contactors for compressors and fans Aermec code 5806765 00 12 02 clamps for REMOTE PANEL spring type control circuit terminal board outdoor electric board with double door and gaskets electronic controller evaporator pump and recovery pump control consent relay for versions without pump units only all numbered cables DOOR LOCK ISOLATING SWITCH The electric control board can be accessed by removing the voltage using the opening lever on the board itself This lever can be locked using one or more padlocks during maintenance interventions in order to prevent the machine being made live accidentally CONTROL KEYBOARD Allows complete control of the appliance For a more detailed description refer to the user manual NRP 0800 1000 system hydronic unit NRP 1250 1800 system hydronic unit POSSIBLE CONFIGURATIONS BETWEEN HYDRONIC KITS recovery hydronic unit R4 SDgr na P1 na P2 na P3 na P4 na POSSIBLE CONFIGURATIONS BETWEEN HYDRONIC KITS recovery hydronic unit R4 SDgr ok P1 ok P2 ok P3 ok P4 ok 13 NRP 0800 1800 6 ACCESSORIES control max 6 units in RS485 network AERWEB300 18 Web server to monitor and remote 6 1 MECHANICAL ACCESSORIES control max 18 units in RS485 n
61. oling and heating system side exchanger 4 VICTAULIC CONNECTIONS 24 12 NRP 1650 1800 HYDRAULIC CONNECTIONS POSITION vers P1 P4 R1 R4 OU DHW side heating system side exchanger 4 VICTAULIC CONNECTIONS O cooling and heating system side exchanger 4 VICTAULIC CONNECTIONS 342 506 34 Aermec code 5806765 00 12 02 NRP 0800 1800 25 BASIC 2 PIPE SYSTEM HYDRAULIC CIRCUITS 25 1 HYDRAULIC CIRCUIT INSIDE AND OUTSIDE 00 VERSION NRP NRP HYDRAULIC COMPONENTS HYDRAULIC COMPONENTS RECOMMENDED OUTSIDE THE UNIT STANDARD NRP COMPONENTS FOR 2 PIPE SYSTEMS SUPPLIED AS PER STANDARD Plate heat exchanger SYSTEM SIDE Total recovery DHW SIDE Water filter supplied Flow switch mounted Vi BW INR Water temperature probes IN OUT Pumps Air vent valve RECOMMENDED COMPONENTS NOT SUPPLIED FOR WHICH INSTALLER IS RESPONSIBLE Safety valve NI Expansion vessel 10 Drain cock 11 Anti vibration joints 12 Cut off cocks 13 Domestic hot water storage tank DHW 14 System water storage tank respect the minimum water content see TAB 3 or in the event of low loads envision use to prevent continuous ON OFF of the compressors 15 Thermostatic valve 16 Manometer TAB 3 0800 1000 1250 1400 1500 1650 1800 Number of compressors m4 4 4 4 4 4 4 Minimum water content admitt
62. on 4 Flow switch mounted system must be prepared which is 5 Water temperature probes IN OUT engaged on the return line along 6 Pumps with a drain cock in the lowest part 7 Air vent valve of the system Water 9 Expansion vessel disconnectors must be used in 10 Drain cock systems loaded with anti freeze or 12 Cut off cocks where particular legal provisions apply RECOMMENDED COMPONENTS NOT SUPPLIED FOR WHICH INSTALLER IS RESPONSIBLE Particular supply reintegration 8 Safety valve waters must be conditioned 11 Anti vibration joints with appropriate treatment 13 Domestic hot water storage tank DHW systems The water features 14 System water storage tank respect the minimum water content see page 24 of the technical manual or in provided in the table can be used the event of low loads envision use to prevent continuous ON OFF of the compressors as a reference Thermostatic valve Manometer ATTENTION 15 16 TAB 3 0800 1000 1250 1400 1500 1650 1800 It is prohibited to release water glycol mixtures into the Number of compressors 4 A environment Minimum water content admitted COLD SIDE 7 Minimum water content admitted the HOT SIDE 7 7 7 7 7 7 7 ATTENTION It is recommended to design Recommended water content COOLING SIDE HEATING SIDE I kW 14 14 14 14 14 14 14 systems with high water content WATER FEATURES minimum recommended values PH 6 8 sh
63. own in TAB 3 in order to limit Electric conductivity Less than 200 mV cm 25 C 1 The hourly number of Chloride ions Less than 50 ppm inversions between operating Sulphuric acid ions Less than 50 ppm modes Total iron Less than 0 3 ppm 2 op in SE temperature Alkalinity M Less than 50 ppm during winter defrost cycles Total hardness Less than 50 ppm Sulphur ions none DHW SIDE SYSTEM SIDE Ammonia ions None Silicone ions Less than 30 ppm 38 Aermec code 5806765_00 12 02 NRP 0800 1800 A ATTENTION Check the hydraulic sealing of the joints ATTENTION It is recommended to repeat this operation after the appliance has operated for several hours and to periodically check the system pressure Reintegration must be performed with machine off pump Off ATTENTION If the system contains liquid anti freeze this must not be drained freely as it is a pollutant It should be collected and if possible reused Aermec code 5806765_00 12 02 26 3 SYSTEM LOADING Before starting loading position the unit master switch 5 When water starts to escape from the terminal at OFF vent valves close them and continue loading un 1 Check that system drain cock is closed til the envisioned pressure value for the system 2 _ Open all system and relative terminals vent is reached valves 3 Open all system cut off devices 4 Start filling by slowly opening the system water load cock outside the appliance 26 4 SYSTEM LOADING
64. p diagram present in this documentation 4 Check correct operation of the flow meters if installed on closing the cut off valve at the heat exchanger outlet the unit must display the block Finally open the valve and rearm the block 27 4 MACHINE COMMISSIONING After having performed all controls stated above the unit can be started by pressing the ON key The display shows the temperature of the water and machine operating mode Check the operating parameters set set point and reset any alarms present The unit will begin operating after a few minutes 41 ATTENTION Commissioning must be performed with standard settings Only when the inspection has been completed can the functioning Set Point values by changed Before start up power the unit for at least 12 24 hours positioning the protection magnet circuit breaker switch and the door lock isolating switch at ON Make sure that the control panel is off in order to allow the compres sor oil sump to heat 30 OPERATING FEATURES 30 1 SET POINT IN COOLING MODE Factory set 7 C At 5 C 30 2 SET POINT IN HEATING MODE Factory set 45 C At 5 C If the unit power supply is restored after a temporary interruption the mode set will be kept in the memory 30 3 COMPRESSOR START UP DELAY Two functions have been set up to prevent compressor start ups that are too close Minimum time from last switch off 60 seconds in cooling mode
65. r system 12 Whenever this alarm inter venes call the nearest after sales service immediately Aermec code 5806765_00 12 02 NRP 0800 1800 Control panel ITALIANO ENTER per cambiare ESC per confermare Tempo visualizz 20 ATTENTION Only qualified staff can change the language by accessing the assistance menu When 20 seconds have passed it will no longer be possible to modify the language until the next time the board is restarted Aermec code 5806765_00 12 02 31 SWITCH ON AND USE OF UNIT Once the unit has been powered the control panel will switch on after 30 sec displaying L the window fig 1 which will remain active for 6 sec before passing to the window used to select the language fig 2 2 The second window makes it possible to select the software language It will remain active for 20 sec before passing on to the window main menu fig 3 The NRP unit control panel allows to set machine operating parameters and their display quickly The display is made up from a 132 x 64 pixel graphi cal matrix in order to signal the type of operation displaying set parameters and any alarms that have intervened All default settings and any modifications are memo rised in the board The control panel is represented by a graphical display with six keys for browsing through the displays which are organised in MENUS The main display is fig 3 Browsing the various menus para
66. roduction of DHW with use of total recovery device WINTER OPERATION 3 Heat pump supplying the system 4 Heat pump for DHW 1 2 FOR 4 PIPE SYSTEMS The multipurpose 4 pipe units have been made to respond to the demands of shopping centres offices or facilities with large windows where there can be the simultaneous demand for hot and cold water with a system which does not require season changeover and therefore is a valid alternative to traditional systems based on the chiller boiler combination The microprocessor control logic mounted ensures perfect satisfaction of heating and cooling loads The operating modes are PRODUCTION OF COOLED WATER ONLY The multipurpose unit acts as a classical chiller cool water to the system and condensation heat disposal outside through finned coils PRODUCTION OF HOT WATER ONLY The multipurpose unit acts as a heat pump exploiting the heat of the outside air it makes use of the finned coil evaporator to raise the temperature of the water to be sent to the system through a plate heat exchanger condenser The main difference with respect to traditional heat pumps with cycle inversion is that the heated water is produced in an exchanger different to that used for the production of cold water This is to keep the heating and cooling sections necessary for 4 pipe systems well distinguished COMBINED PRODUCTION If the utility requires simultaneous hot and cold water the unit acts as a
67. staller s responsibility who must operate according to the code of practice and in compliance with the Standard in force in the country of destination ATTENTION The hydraulic connection pipes to the machine must be suitably di mensioned for the effective water flow rate requested by the system when running The water flow rate to the heat exchanger must always be constant ATTENTION Wash the system thoroughly before connecting the unit This cleaning operation will eliminate any residues such as welding drips scale rust or other impurities from the piping These substances can also deposit inside and cause machine malfunctioning The con nection piping must be adequately supported so that its weight is not borne by the appliance Lid fo un gt un LLJ a e st ATTENTION An appropriate load reintegration system must be prepared which is engaged on the return line along with a drain cock in the lowest part of the system Water discon nectors must be used in systems loaded with anti freeze or where particular legal provisions apply Particular supply reintegration waters must be conditioned with appropriate treatment systems The water features provided in the table can be used as a reference ATTENTION It is prohibited to release water glycol mixtures into the environ ment ATTENTION It is recommended to design systems with high water content minimum recommended values shown in TA

NRP 0800-1800

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