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Summary of Contents for AERMEC NRV 0550
- Page 1 Technical Manual NRV 0550 • OUTDOOR CHILLER • MICROCHANNEL COILS • EASY AND QUICK TO INSTALL COMPACT MODULE • RELIABILITY AND MODULARITY 5523421_02 22.02 TRANSLATION FROM ORIGINAL...
- Page 3 AERMEC S.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 fabricated, delivered or are under construction.
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Page 4: Table Of Contents
INDEX DECLARATION OF CONFORMITY ..................................5 PRODUCT DESCRIPTION ....................................7 CONFIGURATOR ........................................8 DESCRIPTION OF COMPONENTS ..................................9 CHECK LIST ..........................................11 PRINCIPLE FUNCTIONING DIAGRAMS ..............................12 NRV0550 (WITH MECHANICAL THERMOSTATIC VALVE) ..............................12 ACCESSORIES ........................................14 SELECTION CRITERIA OF THE HEAT EXCHANGERS ACCORDING TO THE PLACE OF INSTALLATION OF THE UNIT ... 15 BASIC PRINCIPLES ON MICROCHANNEL COIL CORROSION ......................16 CLEANING MICRO-CHANNEL COIL ................................16 OPERATING RANGE ......................................17... -
Page 5: Declaration Of Conformity
Dichiarazione di Conformità (doc. "Lista componenti per Dichiarazione di Conformità"). Dichiariamo inoltre che, al momento dell'immissione sul mercato Europeo di tale apparecchiatura precaricata da parte di Aermec S.p.A (che importa o produce nell'Unione), gli idrofluorocarburi, in essa contenuti, sono considerati nel sistema di quote dell'Unione di cui al Capo IV del regolamento UE 517/2014 in quanto sono stati immessi sul mercato da un produttore o importatore di idrofluorocarburi cui si applica l'articolo 15 del regolamento UE 517/2014. - Page 6 (doc. «Liste des composants pour la déclaration de conformité»). Nous déclarons également que, lors de la mise sur le marché européen de cet équipement préchargé par Aermec SpA (qui importe ou produit dans l'Union), les Nous déclarons également que, lors de la mise sur le marché européen de cet équipement préchargé par Aermec SpA (qui importe ou produit dans l'Union), les hydrofluorocarbures qu'il contient sont pris en compte dans le système de quotas de l'Union visé...
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Page 7: Product Description
PRODUCT DESCRIPTION NRV is made up of independent 108kW modules that can be connected The presence of an internal clock allows you to program the operation in to each other up to a power of 970kW. Each individual module is a cooler time periods in order to improve the system efficiency and reduce con- for chilled water production to meet air conditioning requirements in sumption during periods of non-use. -
Page 8: Configurator
Configurator Field Description 1,2,3 4,5,6.7 Cuts 0550 Scope of application ° Standard (water produced up to +4 °C) Electronic thermostatic valve (produced water up to +4?) Model ° Cooling Only Heat recovery ° Without heat recovery With desuperheater Version High efficiency Silenced high efficiency Coils °... -
Page 9: Description Of Components
description of components Compressor COOLING CIRCUIT Differential pressure switch Scroll hermetic compressors with 2-pole electric motors. All the compres- Positioned before and between the input and output of the heat exchanger, sors are equipped with guard resistance, inner electronic thermal protec- its task is to ensure water circulation. - Page 10 DOOR-LOCK ISOLATING SWITCH THE electrical board can be accessed by disconnecting the power supply using the door-lock isolating switch lever. In order to prevent energising the unit accidentally during maintenance, the isolator switch has been provided with a safety-lock. Control board The microprocessor controls features cutting edge functions and proprie- tary adjustments The keyboard is equipped with control keys and LCD display, which allows...
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Page 11: Check List
Check List Model D (1) Components of the cooling circuit n° 1 cooling circuits • Scroll compressors • Cycle reversing valve High pressure transducer • Low pressure transducers • High pressure switch Low pressure switch • Source side heat exchangers •... -
Page 12: Principle Functioning Diagrams
PRINCIPLE FUNCTIONING DIAGRAMS NRV0550 (with mechanical thermostatic valve) Condenser Condenser Evaporator Evaporator Schema frigorifero - NYB... -
Page 14: Accessories
ACCESSORIES FACTORY FITTED ACCESSORIES AER485P1: RS-485 interface for supervision systems with MODBUS protocol. AERBACP: Ethernet communication Interface for protocols Bacnet/IP, Modbus DRE: Electronic device for peak current reduction. TCP/IP, SNMP KNYB: Pair of caps with grooved joints assembled on the unit manifold. DCPX: Device for condensation temperature control, with continuous speed mo- KREC: Accessory kit to remote the electric power supply input to the back dulation of fans by using a pressure transducer. -
Page 15: Selection Criteria Of The Heat Exchangers According To The Place Of Installation Of The Unit
SELECTION CRITERIA OF THE HEAT EXCHANGERS ACCORDING TO THE PLACE OF INSTALLATION OF THE UNIT The guide provides advice for applications. Although recommendations are and ocean-going ship engine exhaust, industrial production, chemical tre- given, all the details about the real world application of our products cannot atment facilities (cooling towers in the vicinity) and fossil fuel power plants. -
Page 16: Basic Principles On Microchannel Coil Corrosion
Lastly, also rinse the carpentry and the fans thoroughly to be sure that all im- purities have been removed. Aermec assume no liability for the completeness of the information con- tained in this document. -
Page 17: Operating Range
OPERATING RANGE The units, in standard configuration, are not suitable for installation in salty environment. The values indicated in the table refer to the min. and max. limits of the unit. For further information, refer to the tables of yields and consumptions diffe- rent from the nominal ones. -
Page 18: Performance Specifications
Sound power level (calculated when cold)Aermec determines sound power values in agreement with the Standard UNI EN ISO 9614-2, in compliance with that requested by Eu- rovent certification. Sound pressure level, at a distance of 10 m, for units in open field conditions on a reflective surface; non-binding value obtained from the sound power level... -
Page 19: Electrical Data
ELECTRICAL DATA Size Notes ver. 0550 Electrical data Power supply V/ph/Hz 400V/3/50Hz Total input current when cold Maximum current (FLA) Peak current (LRA) DIMENSIONS AND WEIGHTS Size Notes ver. 0550 Electrical data Standard unit 2480 Height 2480 2200 Width 2200 1190 Length 1190... -
Page 20: Yields And Absorption Different Than Nominal
Capacities and pressure drops in the heat exchangers calculated with ∆T 5 °C Note For operating conditions different to those declared refer to the selection program available on www.aermec.com PRESSURE DROPS The water flow rate is calculated with the following formula: Pressure drops are calculated with the following formula: Q = Pc x 860 / ΔT. -
Page 21: Water System Content
If you are in any doubt, please refer to the relevant technical documentation or contact the AERMEC Technical-Commercial Service. -
Page 22: Corrective Factors
CORRECTIVE FACTORS Corrective factors for Average water temperatures different from the nominal System side heat exchanger Operation in cooling mode Heating mode Average water temperatures (°C) Corrective factor 1.02 0.98 0.97 0.95 0.93 0.91 1.04 1.03 1.02 1.01 0.99 0.98 0.97 DIRT Deposit corrective factors [K*M2]/[W]... -
Page 23: Dimensions
DIMENSIONS Vers. 0550 Height (mm) 2480 Width (mm) 2200 Depth (mm) 1190 Weight* (kg) 1105 * Standard unit weight without accessories MINIMUM TECHNICAL SPACES AND WEIGHT DISTRIBUTION MINIMUM TECHNICAL SPACES V-blok Fans 0550 ° 1500 2000 3000 * Consider more space at the moment of installation 1200 1060 Top View... - Page 24 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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