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Summary of Contents for AERMEC NRL2000A
- Page 1 60Hz 60Hz Technical manual NRL 200-360 CHILLER REVERSIBLE HEAT PUMP • EXTERNAL UNIT • HIGH EFFICIENCY • HOT WATER PRODUCING UP TO 131°F - 55°C • POWER SUPPLY 60Hz INRLTY_14.09 4086982_03...
- Page 2 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.
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Page 3: Table Of Contents
HOW TO INTERPRET GLYCOL CURVES ......... 22 EXPANSION TANK CALIBRATION ..........23 13.5.1. EXPANSION TANK CALIBRATION ..........23 MINIMUM WATER CONTENT ............23 PARTIALIZATIONS ................24 SOUND DATA .................. 25 SETTINGS PARAMETERS CONTROL AND SAFETY ......26 Aermec cod. 14.09 4086982_03... - Page 4 NRL 2000-3600 60Hz Aermec cod. 14.09 4086982_03...
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Page 5: Components And Configurations
COMPONENTS AND CONFIGURATIONS COMPONENTS VERSIONS COOLING CIRCUIT ° THERMOSTATIC VALVE X - Y (CONFIGURATION OPTION) EXCHANGER PLATE (EVAPORATOR) EXCHANGER PLATE (TOTAL RECOVERY) EXCHANGER PLATE (DESUPERHEATER) AIR SIDE EXCHANGE COMPRESSOR DEHYDRATOR FILTER HIGH PRESSURE SWITCH HIGH PRESSURE TRANSDUCER LOW PRESSURE TRANSDUCER LIQUID INDICATOR LIQUID TANK ONE-WAY VALVES LIQUID SEPARATOR CYCLE REVERSE VALVE Aermec cod. 14.09 4086982_03... -
Page 6: Configurator
Single low head pump and reserve pump Single high head pump Single high head pump and reserve pump Configurations NOT permitted: YD / YT / YH HT / HC CT / CD / T01 / T02 / T03 / T04 "I" ventilation mandatory for Desuperheater "D" option Aermec cod. 14.09 4086982_03... -
Page 7: Cooling Cirquit
NRL 2000-3600 60Hz COOLING CIRQUIT 4.1. NRL ONLY COOLING KEY: BHE PLATE HEAT EXCHANGER CN AIR SIDE EXSCHANGE CP COMPRESSOR F FILTER DRIER HPS HIGH PRESSURE SWITCH HPT HIGH PRESSURE TRANSDUCERS IDL LIQUID INDICATOR LPT LOW PRESSURE TRANSDUCER Aermec cod. 14.09 4086982_03... -
Page 8: Cooling Cirquit Nrl Heat Pump
4.2. COOLING CIRQUIT NRL HEAT PUMP KEY: FLUID STORAGE TANK PLATE HEAT EXCHANGER AIR SIDE EXCHANGE COMPRESSOR ONE-WAY VALVES FILTER DRIER HIGH PRESSURE SWITCH HIGH PRESSURE TRANSDUCERS LIQUID INDICATOR LOW PRESSURE TRANSDUCERS LIQUID SEPARATOR REVERSE CYCLE VALVE Aermec cod. 14.09 4086982_03... -
Page 9: Description Of Components
EXPANSION TANK (STANDARD SUPPLY TO PUMP AND STORAGE TANK SOLENOID VALVE VERSION) The valve closes when the compressor turns off, With nitrogen pre-load membrane. preventing the flow of refrigerant gas towards the Aermec cod. 14.09 4086982_03... - Page 10 Alarms management: a. Low pressure b. High pressure (primary alarm: switch directly blocks supply to com- pressor) c. High discharge temperature d. Anti-freeze e. Water differential flow switch. Alarm on the ΔT − Alarms with automatic reset with limited number of re-starts before blocking. − ON/OFF external contact − Change season from external contact For further information please refer to user manual. Aermec cod. 14.09 4086982_03...
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Page 11: Accessories
6.2. ELECTRICAL ACCESORIES DUALCHILLER Simplified control system to switch on and off, and command, two chillers (using Aermec GR3 command) AERWEB300 in a single system, as if they were a single unit. Sprung anti-vibration supports. Select the AVX model Accessory AERWEB allows remote control of a chiller MULTICHILLER from the compatibility table. -
Page 12: Technical Data For Versions "A
External temperature 35°C / 95°F Load 100% air 35°C /95°F External air temperature 7°C b.s / 6°C b.u. Load 75% air 26.7°C/80.06°F DATA REFERED NO PUMP VERSION Load 50% air 18.3°C /64.94°F Load 25% air 12.8°C/55.04°F Aermec cod. 14.09 4086982_03... - Page 13 55 / 121,25 55 / 121,25 73 / 160,94 73 / 160,94 73 / 160,94 73 / 160,94 LOAD (ATTENTION: THE DECLARED DATA CAN BE AMENDED AT ANY TIME BY AERMEC, IF DEEMED NECESSARY). "A" MODELS WITHOUT PUMP ON/OFF FAN 460V 475,54...
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Page 14: Technical Data For Versions "Ha
External temperature 35°C / 95°F Load 100% air 35°C /95°F External air temperature 7°C b.s / 6°C b.u. Load 75% air 26.7°C/80.06°F DATA REFERED NO PUMP VERSION Load 50% air 18.3°C /64.94°F Load 25% air 12.8°C/55.04°F Aermec cod. 14.09 4086982_03... - Page 15 C4 kg / lb 56 /123,46 82/180,78 82/180,78 82/180,78 85/187,39 85/187,39 85/187,39 LOAD (ATTENTION: THE DECLARE D DATA CAN BE AMENDED AT ANY TIME BY AERMEC, IF DEEMED NECESSARY). "HA" MODELS WITHOUT PUMP ON/OFF FAN 460V 490,74 579,76 635,06 710,75...
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Page 16: Operationg Limits
46°C/ 114.8°F and water this operation, it is recommended to install a inlet 35°C/95°F. In winter mode the unit can be started with external air -15°C/5 °F and three-way valve that allows bypassing water from the system utilities, until the conditions water inlet 10°C/50°F. Operate in such condi- tions is permitted Aermec cod. 14.09 4086982_03... -
Page 17: Input Power And Cooling Capacity
FOR ∆t DIFFERENT TO THE NOMINAL WATER PRODUCTED FROM 10.01°F / 5.56°C. For ∆t different from 10.01°F / 5.56°C at the evaporator use Tab. 11.3.1. to obtain the correction factors of the cooling capacity and input power. In order to consider exchanger dirtying, use the relative dirtying factors Tab.11.4.1. Aermec cod. 14.09 4086982_03... -
Page 18: Corrective Factors For Water Temperatures
FOULING FACTOR [K*M2]/[KW] [K*m2]/[W] 0,0001 0,0002 factor = 1. Cooling capacity correction factors 0,98 0,94 For other fouling factor values, multiply the data of Input power correction factors 0,98 0,95 performance table by the coefficients given. Aermec cod. 14.09 4086982_03... -
Page 19: Pressure Drops
NRL 2500 NRL 2800 NRL 3000 NRL 3300 NRL 3600 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000 Water flow rate Average water temperature°C Average water temperature °F Multiplicative co-efficients 1.04 1.02 0.98 0.96 Aermec cod. 14.09 4086982_03... - Page 20 TOTAL RECOVERY PRESSURE DROPS NRL 800 NRL 900 NRL 1000 NRL 1250 NRL 1400 NRL 1500 NRL 1650 NRL 1800 50000 100000 150000 200000 250000 300000 350000 1000 1200 1400 1541 Water flow rate Aermec cod. 14.09 4086982_03...
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Page 21: System Side Total Pressure Drop
7.25 50000 100000 150000 200000 250000 300000 350000 1541 1100 1321 Water flow Average water temperature (°F / °C) 73,4/23 82,4/ 28 91,4/33 100,4/38 109,4/43 118,4/48 127,4/53 136,4/58 Coefficients 1,04 1,03 1,02 1,01 1,00 0,99 0,98 0,97 Aermec cod. 14.09 4086982_03... -
Page 22: Useful Heads
58.01 50.76 43.51 36.25 29.00 21.75 14.50 7.25 20000 70000 120000 170000 220000 Water flow 14.2. HIGH PUMP USEFUL HEADS "HA" 58.01 50.76 43.51 36.25 29.00 21.75 14.50 7.25 20000 70000 120000 170000 220000 7 48 Water flow Aermec cod. 14.09 4086982_03... -
Page 23: Low Pump Useful Heads
21.75 14.50 7.25 20000 40000 60000 80000 100000 120000 140000 160000 180000 200000 Water flow 14.4. LOW PUMP USEFUL HEADS "HA" 36.25 29.00 21.75 14.50 7.25 20000 40000 60000 80000 100000 140000 160000 180000 200000 120000 Water flow Aermec cod. 14.09 4086982_03... -
Page 24: Ethylene Glycol Solutions
Initial rates for “EXTERNAL AIR TEMPERATURE” and “TEMPERATURE OF PRODUCED WATER”, are not directly related, therefore it is not possible to refer to the curve of one of these rates to obtain corre- Aermec cod. 14.09 4086982_03... -
Page 25: Expansion Tank Calibration
It is recommended to design systems with high water content (minimum recommended values shown in table), to limit: 1. The hourly number of inversions between functioning modes. 2. Decrease in water temperature during winter defrost cycles. Aermec cod. 14.09 4086982_03... -
Page 26: Partializations
NRL 2800 NRL 3000 NRL 3300 NRL 3600 POWER SUPPLY % 1º 2º 3º 4º 5º 6º 7º 8º 9º 10º 11º 12º NRL 2000 NRL 2250 NRL 2500 NRL 2800 NRL 3000 NRL 3300 NRL 3600 Aermec cod. 14.09 4086982_03... -
Page 27: Sound Data
NRL 2000-3600 60Hz SOUND DATA Sound power Total sound levels Octave band[Hz] Aermec determines the sound power value on Pressure 1000 2000 4000 8000 Pow. [dB(A)] [dB(A)] the basis of measurements taken in accordance dB(A) Sound power by central band frequency [dB(A)]... -
Page 28: Settings Parameters Control And Safety
32,3 A low pump 4,6 A CP3 + CP3A 41,7 A 12 x 3,7 A SF 575 V 14 x 3,7 A PC CP2 + CP2A 32,3 A high pump 7,7 A CP4 + CP4A 41,7 A Aermec cod. 14.09 4086982_03... - Page 29 CP1 + CP3 - CP1A + CP3A - LOW PUMP 7,7 A CP1B + CP3B 16 x 3,7 A SF 575V 41,7 A 16 x 3,7 A PC CP2 + CP4 - CP2A + CP4A - HIGH PUMP 15,4 A CP2B + CP4B Aermec cod. 14.09 4086982_03...
- Page 30 37040 Bevilacqua (VR) Italia–Via Roma, 996 Tel. (+39) 0442 633111 Telefax (+39) 0442 93577 www.aermec.com - sales@aermec.com The technical data in the following documentation are not binding. Aermec reserves the right to make all the modifications considered necessary for improving the product at any time.
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