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INTERTEK
AHRI
COOLING ONLY
GAS
CERTIFICATION
CERTIFICATION
CHILLER
REVERSIBLE HEAT PUMP
• EXTERNAL UNIT
• HIGH EFFICENCY
• HOT WATER PRODUCING UP TO 131°F / 55°C
• POWER SUPPLY 60Hz
Technical Manual
COOLING AND
SCROLL
AXIAL FAN
PLATE
HEATING
COMPRESSOR
EXCHANGER
NRL-H 028-075
60Hz
FREQUENCY
NRL 028-075
EN
21.05. 5641300_07
TRANSLATION FROM ORIGINAL
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Summary of Contents for AERMEC NRL 028-075
- Page 1 SCROLL AXIAL FAN PLATE FREQUENCY CERTIFICATION CERTIFICATION HEATING COMPRESSOR EXCHANGER NRL 028-075 CHILLER REVERSIBLE HEAT PUMP • EXTERNAL UNIT NRL-H 028-075 • HIGH EFFICENCY • HOT WATER PRODUCING UP TO 131°F / 55°C • POWER SUPPLY 60Hz 21.05. 5641300_07 TRANSLATION FROM ORIGINAL...
- Page 3 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.
- Page 4 NRL 028-075 60Hz...
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Page 5: Table Of Contents
NRL 028-075 60Hz INDEX Description and choce of unit ............6 Desuperheater ................24 Check list ................... 6 Total recovery .................. 25 12.1. Pressure drops ....................25 Configurator ..................7 Pressure drop .................. 26 Cooling circuit ................... 8 13.1. System side total pressure drop only cooling version ........26 4.1. -
Page 6: Description And Choce Of Unit
NRL 028-075 60Hz DESCRIPTION AND CHOCE OF UNIT Standards and Directives respected on Chillers and heat pumps for outdoor condensed in the The versions can be in different set-ups at the same designing and constructing the unit: air with R410A Series NRL have been designed and... -
Page 7: Configurator
NRL 028-075 60Hz CONFIGURATOR DESCRIPTION 1,2,3 4,5,6 SIZE 028 - 030 - 033 - 035 - 050 - 055 - 060 - 065 - 070 - 075 COMPRESSOR THERMOSTATIC VALVE ° Standard mechanical thermostatic valve with produced water up to 39,2°F / +4°C Y Mechanical thermostatic valve with produced water from 39,2°F / +4°C to -42,8°F / -6°C... -
Page 8: Cooling Circuit
NRL 028-075 60Hz COOLING CIRCUIT 4.1. NRL COOLING CIRCUIT ONLY COOLING BHE: SCAMBIATORE A PIASTRE BHE EXCHANGER PLATE CN: BATTERIA ALETTATA CN AIR SIDE EXCHANGE CP: COMPRESSORE F: FILTRO DEIDRATATORE CP COMPRESSOR HPS: PRESSOSTATO DI ALTA PRESSIONE F DEHYDRATOR FILTER HPT: TRASDUTTORE ALTA PRESSIONE... -
Page 9: Nrl Cooling Circuit Heat Pump
NRL 028-075 60Hz 4.2. NRL COOLING CIRCUIT HEAT PUMP AL: ACCUMULO DEL LIQUIDO BHE: SCAMBIATORE A PIASTRE CN: BATTERIA ALETTATA CP: COMPRESSORE CV: VALVOLA DI NON RITORNO F: FILTRO DEIDRATATORE HPS: PRESSOSTATO DI ALTA PRESSIONE LIQUID TANK HPT: TRASDUTTORE ALTA PRESSIONE... -
Page 10: Description Of Components
NRL 028-075 60Hz DESCRIPTION OF COMPONENTS 5.1. CHILLER CIRCUIT MECHANICAL THERMOSTATIC VALVE WATER TEMPERATURE PROBE (IN-OUT) The mechanical valve, with external equaliser SCROLL COMPRESSORS positioned at the evaporator inlet, modulates the AIR VENT High efficiency scroll-type hermetic compressors, flow of gas to the evaporator, according to the... -
Page 11: Electrical Panel Control And Power
NRL 028-075 60Hz 5.6. ELECTRICAL PANEL CONTROL AND ELECTRONIC REGULATION POWER Microprocessor board Electric control board in compliance with Standards Composed of management & control board EN 60204-1/IEC 204-1, complete with: and display board. - transformer for the control circuit,... -
Page 12: Accessories
NRL 028-075 60Hz ACCESSORIES 6.1. ELECTRICAL ACCESORIES AER485P1: RS-485 interface for supervision systems Compatibility with the VMF system. with MODBUS protocol For further system information please refer to the SPECIFIC ACCESSORIES FOR MODELS “°” COOLING ONLY WITH DESUPERHEATER “° / D”... -
Page 13: Technical Data Version "A - E
NRL 028-075 60Hz TECHNICAL DATA VERSION "A - E" Models Alls 25.51 30.14 37.16 41.74 46.86 49.90 Cooling capacity Alls 13.71 16.01 18.40 23.52 Alls 29.93 35.21 42.69 49.07 54.76 59.03 Total power input Alls 15.55 18.05 20.75 26.88 Alls 31.20... -
Page 14: Electrical Data Models Without Pump + "°" On/Off Fan
NRL 028-075 60Hz 7.1. ELECTRICAL DATA MODELS WITHOUT PUMP + "°" ON/OFF FAN Models Alimentation 230V60Hz MODELS WITHOUT PUMP MODELS WITH LOW PUMP (P1-P2-01-02) MODELS WITH HIGH PUMP (P3-P4-03-04) Alimentation 460/3/60Hz MODELS WITHOUT PUMP MODELS WITH LOW PUMP (P1-P2-01-02) MODELS WITH HIGH PUMP... -
Page 15: Electrical Data Models Without Pump + "I" Ec Inverter Fan
NRL 028-075 60Hz 7.2. ELECTRICAL DATA MODELS WITHOUT PUMP + "I" EC INVERTER FAN Models Alimentation 208V60Hz MODELS WITHOUT PUMP MODELS WITH LOW PUMP (P1-P2-01-02) MODELS WITH HIGH PUMP (P3-P4-03-04) Alimentation 230V60Hz MODELS WITHOUT PUMP MODELS WITH LOW PUMP (P1-P2-01-02) - Page 16 4.36 6.54 6.54 6.54 6.54 SOUND DATA dB(A) Sound pressure dB(A) dB(A) Sound power dB(A) CHARGES (the reported data can be amended any time aermec considers it necessary) 12.3 12.5 16.6 18.0 18.0 23.8 24.0 14.55 18.96 18.74 27.12 27.56 36.60...
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Page 17: Technical Data "Ha - He" Version
NRL 028-075 60Hz TECHNICAL DATA "HA - HE" VERSION Models Cooling mode Alls 24.85 28.95 35.15 40.78 45.13 49.56 Cooling capacity Alls 13.05 15.44 17.54 22.15 Alls 29.03 34.39 41.28 47.66 53.57 58.51 Total power input Alls 15.05 17.46 20.07 25.85... -
Page 18: Electrical Data Models Without Pump + "°" On/Off Fan
NRL 028-075 60Hz 8.1. ELECTRICAL DATA MODELS WITHOUT PUMP + "°" ON/OFF FAN Alimentation 230V60Hz MODELS WITHOUT PUMP MODELS WITH LOW PUMP (P1-P2-01-02) MODELS WITH HIGH PUMP (P3-P4-03-04) Alimentation 460/3/60Hz MODELS WITHOUT PUMP MODELS WITH LOW PUMP (P1-P2-01-02) MODELS WITH HIGH PUMP... -
Page 19: Electrical Data Models Without Pump + "I" Ec Inverter Fan
NRL 028-075 60Hz 8.2. ELECTRICAL DATA MODELS WITHOUT PUMP + "I" EC INVERTER FAN Alimentation 208V60Hz MODELS WITHOUT PUMP MODELS WITH LOW PUMP (P1-P2-01-02) MODELS WITH HIGH PUMP (P3-P4-03-04) Alimentation 230V60Hz MODELS WITHOUT PUMP MODELS WITH LOW PUMP (P1-P2-01-02) MODELS WITH HIGH PUMP... - Page 20 Sound pressure dB(A) dB(A) Sound power dB(A) HEATING FUNCTIONING Sound pressure dB(A) Sound power dB(A) CHARGE (THE DATA REPORTED CAN BE CHANGED AT ANY TIME IF DEEMED NECESSARY FROM AERMEC) 12,1 15,0 15,0 17,5 17,0 17,5 26,0 26,0 26,0 44,0...
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Page 21: Operation Limit
NRL 028-075 60Hz OPERATION LIMIT 9.1. COOLING MODE ¹ °F °C The units, in standard configuration, are not suitable for installation in salty environments. For functioning li- 114,8 °F 46 °C mits, please refer to the diagrams below, valid for AHRI 36 °C... -
Page 22: Corrective Factors
NRL 028-075 60Hz CORRECTIVE FACTORS 10.1. INPUT POWER AND COOLING CAPA- COOLING CAPACITY CORRECTIVE COEFFICIENTS CITY "STANDARD VERSION"/ "HEAT 20°C / 68°F PUMP VERSION IN COOLING MODE" 25°C / 77°F 30°C / 86°F 35°C / 95°F The cooling capacity efficiency and electrical input... -
Page 23: Heating Capacity And Input Power
NRL 028-075 60Hz 10.2. HEATING CAPACITY AND INPUT HEATING CAPACITY CORRECTIVE COEFFICIENTS POWER °C °F − "HEAT PUMP VERSIONS" The heating capacity efficiency and electrical input power in conditions differing from normal conditions are obtained by multiplying the nomi- nal values (Pt, Pa) by the respective coefficient correctives (Ct, Ca). -
Page 24: Desuperheater
NRL 028-075 60Hz DESUPERHEATER The heating capacity that can be obtained from the DESUPERHEATER CORRECTIVE COEFFICIENTS desuperheater is found by multiplying the nominal value (Pd), by a relative co-efficient (Cd). 3.00 The following diagrams allow to obtain corrective co-efficients to use for chillers in their various versions;... -
Page 25: Total Recovery
NRL 028-075 60Hz TOTAL RECOVERY RECOVERED HEATING CAPACITY CORRECTIVE CO-EFFICIENTS In the case of functioning with total heat recovery, machine performance does not depend on the external air temperature, but on that of the hot 35°C / 95°F 40°C / 104°F water produced: the electric input power and 45°C / 113°F... -
Page 26: Pressure Drop
NRL 028-075 60Hz PRESSURE DROP 13.1. SYSTEM SIDE TOTAL PRESSURE DROP ONLY COOLING VERSION Inlet water temperature 53,60°F / 12°C Water product temperature 44,6°F / 7°C NRL 280 External air temperature 95°F / 35°C NRL 300 Average water temperature 50°F / 10°C... -
Page 27: Useful Heads
NRL 028-075 60Hz USEFUL HEADS 14.1. ONLY COOLING LOW PUMP USEFUL HEADS NRL 280 - 750 60HZ / 230V - 460V p.s.i. NRL 280 NRL 300 NRL 330 NRL 350 NRL 500 NRL 550 NRL 600 NRL 650 NRL 700... -
Page 28: Only Cooling High Pump Useful Heads Nrl 280 - 750 60Hz / 230V - 460V
NRL 028-075 60Hz 14.3. ONLY COOLING HIGH PUMP USEFUL HEADS NRL 280 - 750 60HZ / 230V - 460V p.s.i. NRL 280 NRL 300 NRL 330 NRL 350 NRL 500 NRL 550 NRL 600 NRL 650 NRL 700 NRL 750... -
Page 29: Heat Pump Low Pump Useful Heads Nrl 280 - 750 60Hz / 230V - 460V
NRL 028-075 60Hz 14.5. HEAT PUMP LOW PUMP USEFUL HEADS NRL 280 - 750 60HZ / 230V - 460V p.s.i. NRL 280 NRL 300 NRL 330 NRL 350 NRL 500 NRL 550 NRL 600 NRL 650 NRL 700 NRL 750... -
Page 30: Heat Pump High Pump Useful Heads Nrl 280 - 750 60Hz / 230V - 460V
NRL 028-075 60Hz 14.7. HEAT PUMP HIGH PUMP USEFUL HEADS NRL 280 - 750 60HZ / 230V - 460V p.s.i. NRL 280 NRL 300 NRL 330 NRL 350 NRL 500 NRL 550 NRL 600 NRL 650 NRL 700 NRL 750... -
Page 31: Glycol
NRL 028-075 60Hz ETHYLENE GLYCOL GLYCOL COOLING MODE CORRECTION FACTOR WITH ETHYLENE GLYCOL COOLING MODE Freezing Point °C -3.63 -6.10 -8.93 -12.11 -15.74 -19.94 -24.79 -30.44 -37.10 Percent ethylene glycol 1.000 1.033 1.040 1.049 1.060 1.072 1.086 1.102 1.120 1.141 1.000... -
Page 32: Expansion Tank Calibration
NRL 028-075 60Hz EXPANSION TANK CALIBRATION The standard pressure value for pre-charging the ex- H max (1) = 180.45ft / 55m pansion tank is 1.5 bar, and the volume is 25 litres/ 6.6 gallon. Maximum value 6 bar. The tank must be calibrated according to the... -
Page 33: Part Load
NRL 028-075 60Hz PART LOAD HEATING (AHRI CONDITIONS) Inlet water temperature 40°C / 104°F Outlet water temperature 45°C / 113°F External air temperature 7°C_44.6°F B.S. / 6°C_42.8°F B.U. COOLING (AHRI CONDITIONS) Outlet water temperature 6,7°C / 44,6°F Flow rate 0,043l/s per kW External temperature 35°C / 95°F... -
Page 34: Sound Data
NRL 028-075 60Hz SOUND DATA Sound power Total sound levels Octave band[Hz] Aermec determines the sound power value on Pressure 1000 2000 4000 8000 Pot. [dB (A)] [dB (A)] the basis of measurements taken in accordance [dB (A)] Sound power by central band frequency [dB (A)] 10 m with standard 9614-2. -
Page 35: Control And Safety Parameters Calibration
NRL 028-075 60Hz CONTROL AND SAFETY PARAMETERS CALIBRATION Default COOLING SET Max. -10°C / 14°F 7°C / 44,6°F Water inlet temperature in cooling mode 20°C / 68°F Default HEATING SET Max. Inlet water temperature in heating functioning mode 30°C / 86°F 55°C / 131°F... -
Page 36: Thermomagnetic
NRL 028-075 60Hz 20.1. THERMOMAGNETIC COMPRESSOR PUMP PUMP MODEL POWER SUPPLY COMPRESSOR THERMOMAGNETIC THERMOMAGNETIC THERMOMAGNETIC TYPE LOW PUMP 35,0 A 4,6 A 208V HIGH PUMP 35,0 A 7,8 A LOW PUMP 35,0 A 4,6 A 230V HIGH PUMP 35,0 A... - Page 37 NRL 028-075 60Hz COMPRESSOR PUMP PUMP MODEL POWER SUPPLY COMPRESSOR THERMOMAGNETIC THERMOMAGNETIC THERMOMAGNETIC TYPE 48,0 A LOW PUMP 8,6 A CP1A 48,0 A 230V 3 x 7,2 A 48,0 A HIGH PUMP 11,5 A CP2A 48,0 A 48,0 A LOW PUMP...
- Page 40 Via Roma, 996 37040 Bevilacqua (VR) - Italia Tel. + 39 0442 633111 Fax +39 0442 93577 marketing@aermec.com www.aermec.com Aermec reserves the right to make all modification deemed necessary for improving the product at any time with any modification of technical data.
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