Tropicalised and Low Noise Condensing Untis for R22

Product catalog summary

Introduction
The document introduces two types of semi-hermetic condensing units: AUT (Hot Ambient) and AULN (Low Noise). The AUT series is designed for high air temperatures with an oversized condenser for increased refrigerating capacity and reduced working pressure. The AULN series focuses on low noise operation, using low-speed motor fans and corrosion-resistant materials.

Specifications
Both AUT and AULN units are compatible with refrigerants R134a, R404A, R507, and R22. They feature air-cooled condensers, high-efficiency motor fans, and safety features like liquid receivers with safety valves. The units comply with the PED directive 97/23/EC, with a design pressure of 30 bar.

Lubricants
Compressors in these units use POE oil for HFC refrigerants and mineral oil for R22.

Accessories
Optional accessories include filter driers, moisture-liquid indicators, solenoid valves, and oil separators, designed for easy assembly.

Technical Data
Detailed technical specifications are provided for various models, including cooling capacity, power consumption, and fan specifications.

Designation Examples
Examples of unit designations are provided, indicating the type of unit (e.g., mono-fan or double-fan) and its specific features.

Technical Specifications
The document details technical specifications for various models, including compressor models, maximum operating current, voltage, power, and current consumption. Air flow rates are specified, considering losses from the fins. Sound pressure and power levels are calculated using a specific formula, with noise levels referenced without the compressor.

Application Limits
Application limits for different models are outlined, specifying maximum superheating levels and the use of Discharge Temperature Control (DTC) to enhance efficiency. Consultation with the Dorin selection software is advised for precise operating limits.

Accessories
Accessories available on request include dual pressure switches, solenoid valves, and fan speed regulators. Standard and optional accessories for the units and compressors are listed.

Recommendations
To optimize system efficiency, it is recommended to minimize suction gas superheating and design condensers and evaporators to work with minimal temperature differences. The DTC can reduce performance by up to 10% depending on various factors, and further consultation with the technical department is advised for specific applications.

Overview
The document provides technical specifications and dimensions for various models of condensing units manufactured by Officine Mario Dorin S.p.A., including data on refrigerating capacity, evaporating temperatures, and overall dimensions for different series and models.

Specifications
Refrigerating capacities (Q0) in watts for various models at different evaporating temperatures are listed. Models are categorized under different series such as AULN2, AULN4, and AUT, with specific codes indicating the model type.

Procedures
While explicit procedures are not outlined, detailed specifications are provided for installation and operational purposes.

Standards and Norms
The document adheres to standard technical specifications for refrigeration units, including measurements in millimeters for dimensions and watts for capacity.

Recommendations
While specific recommendations are not detailed, the document implies the importance of selecting the appropriate model based on the required refrigerating capacity and space constraints.

Key Data from Tables
Tables provide a comprehensive list of models with their corresponding refrigerating capacities at various temperatures. Dimensions for mono-fan and multi-fan units are detailed, including length, width, height, and other relevant measurements.

Critical Information
The document highlights the importance of matching the refrigerating capacity with the ambient temperature and evaporating temperature to ensure optimal performance. It also emphasizes the need for precise measurements when considering the installation of these units.

Catalog excerpts

Tropicalised and Low Noise Condensing Untis for R22-1

R22 U N IT A ’ C ON D E N S A T R IC I S E M IE R M E T IC H E SEMI-HERMETIC CONDENSING UNITS SEMIUNITÈS DE CONDENSATION SEMI-HERMETIQUES HALBHERMETISCHE KONDENSATIONSEINHEITEN

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Tropicalised and Low Noise Condensing Untis for R22-2

Introduzione / Introduction / Introduction / Einführung UNITA' TIPO AUT (TROPICALIZZATE) UNITS TYPE AUT (HOT AMBIENT) La nuova serie di unità condensatrici AUT è stata progettata per garantire un funzionamento idoneo anche con temperature dell’aria molto elevate. The new condensing units range AUT is designed to guarantee good operation with very high air temperature. Rispetto alle equivalenti unità condensatrici AU sono dotate di un condensatore sovradimensionato mediamente del 30%, garantendo così, a parità di condizioni di funzionamento, delle capacità frigorifere più elevate e delle pressioni...

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Tropicalised and Low Noise Condensing Untis for R22-3

Introduzione / Introduction / Introduction / Einführung GROUPES CHAUDE) La nouvelle gamme de groupes de condensation AUT est conçue pour fonctionner à des très hautes températures extérieures. Par rapport aux modèles AU, ces unités sont équippées d’un condenseur surdimensionné environ de 30%, donnant, pour les mêmes conditions de fonctionnement, une puissance frigorifique plus importante et des pressions de fonctionnement réduits. Ils sont également recommandés pour un fonctionnement à 60 Hz avec une haute température d’ évaporation. VERFLÜSSIGUNGSSATZ TYP AUT (TROPENFEST) Die neue Serie Verflüssigungssätze...

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Tropicalised and Low Noise Condensing Untis for R22-4

Tensione - Voltage Tension - Spannung Ventilatori - Motorfans - Ventilateurs - Lüfter Max corrente di funzionamento Max operating current Max intensité de fonctionnement Max Betriebsstrom Modello Model Modèle Typ Applicazioni - Application Application Anwendungsbereich Compressore - Compressor Compresseur - Verdichter Unità condensatrice Condensing unit Groupe de condensation Verflüssigungssätze SERIE - RANGE SÈRIES - SERIE Caratteristiche tecniche / Technical data / Caracteristiques Techniques / Technische Merkmale Portata (tot.) Air flow (tot.) Débit d'air (tot.) Lüftdurchsatz (ganz) Potenza...

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Tropicalised and Low Noise Condensing Untis for R22-5

Unità condensatrice Condensing unit Groupe de condensation Verflüssigungssätze SERIE - RANGE SÈRIES - SERIE Caratteristiche tecniche / Technical data / Caracteristiques Techniques / Technische Merkmale Pressione sonora Potenza sonora Peso netto Sound pressure (free field) Sound power Pression acoustique Net weight Puissance Schalldruckpegel Poids net acoustique Nettogewicht Schallleistung 1,8 m 5m Connessioni - Connections - Connexions -Anschüsse Ricevitore Receiver Aspirazione - Suction Liquido - Liquid Recervoir Aspiration - Saugventil Liquide - Flüssig Sammler SL FL Vol. [l] Att. Rot. - Rot....

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Tropicalised and Low Noise Condensing Untis for R22-6

Accessori / Accessories / Accessoires / Zubehörteile Accessori sul gruppo - Accessories on the unit - Accessoires sur l'unité - Zubehörteile auf Verflüssigungssätze Pressostato doppio B.P. e A.P. L.P. and H.P. dual pressure switch Double pressostat B.P.et H.P. Doppelter Druckschalter N.D. und H.D. Pressostato di alta High pressure switch Pressostat de haute pression Hochdruckschalter Filtro disidratatore Filter driers Filtre déshydrateur Filter fuer Kaeltefluessigkeiten Indicatore di liquido e umidità Moisture-liquid indicator Indicateurs de liquide et humidité Fluessigkeitsindikatoren Elettrovalvola...

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Tropicalised and Low Noise Condensing Untis for R22-7

Limiti d’applicazione / Application limits / Champs d’application / Einsatzgrenzen ___________________________________________________________________________ „CC models only Nur „CC“ Modelle ___________________________________________________________________________ Applicazione standard Normal operation Application standard Standard Einsatz Max. surrisc. = 30 K (con Sh>30K aggiungere DTC) Max. superheating = 30 K (if Sh>30K add DTC) Surch. max 30K (avec Sh>30K ajouter DTC) Max. Aufheizung = 30 K (wenn Sh>30K add. DTC) Max. surrisc. = 20 K (con Sh>20K aggiungere DTC) Max. superheating = 20 K...

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Tropicalised and Low Noise Condensing Untis for R22-8

Applic. - Applic. Applic. - Anwendungsbereich Unità condensatrice Condensing unit Groupe de condensation Verflüssigungssätze SERIE - RANGE SÈRIES - SERIE Capacità frigorifera / Refrigerating capacity / Puissance Frigorifique / Kälteleistungsdaten Capacità frigorifera Q0 - Refrigerating capacity Q0 Puissance frigorifique Q0 - Kälteleistung Q0 Temp. Amb. Amb. Temp. Temp. Amb. Umgeb. Temp. Temperatura evaporazione [°C] - Evaporating temperature [°C] Température évaporation [°C] - Verdampfungstemperatur [°C] C 10 Temperatura gas aspirato 20 °C Rese con sottoraffreddamento del liquido Per condizioni...

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Tropicalised and Low Noise Condensing Untis for R22-9

Applic. - Applic. Applic. - Anwendungsbereich Unità condensatrice Condensing unit Groupe de condensation Verflüssigungssätze SERIE - RANGE SÈRIES - SERIE Capacità frigorifera / Refrigerating capacity / Puissance Frigorifique / Kälteleistungsdaten Capacità frigorifera Q0 - Refrigerating capacity Q0 Puissance frigorifique Q0 - Kälteleistung Q0 Temp. Amb. Amb. Temp. Temp. Amb. Umgeb. Temp. Temperatura evaporazione [°C] - Evaporating temperature [°C] Température évaporation [°C] - Verdampfungstemperatur [°C] C Temperatura gas aspirato 20 °C Rese con sottoraffreddamento del liquido Per condizioni...

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Tropicalised and Low Noise Condensing Untis for R22-10

Applic. - Applic. Applic. - Anwendungsbereich Unità condensatrice Condensing unit Groupe de condensation Verflüssigungssätze SERIE - RANGE SÈRIES - SERIE Capacità frigorifera / Refrigerating capacity / Puissance Frigorifique / Kälteleistungsdaten Capacità frigorifera Q0 - Refrigerating capacity Q0 Puissance frigorifique Q0 - Kälteleistung Q0 Temp. Amb. Amb. Temp. Temp. Amb. Umgeb. Temp. Temperatura evaporazione [°C] - Evaporating temperature [°C] Température évaporation [°C] - Verdampfungstemperatur [°C] C Temperatura gas aspirato 20 °C Rese con sottoraffreddamento del liquido Per condizioni...

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