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Reciprocating compressors Application Hints for Planners, Architects, Plant Manufacturers and Installers

Reciprocating compressors Application Hints for Planners, Architects, Plant Manufacturers and Installers
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Reciprocating compressors Application Hints for Planners, Architects, Plant Manufacturers and Installers - 1

Chillers with Screw- and Reciprocating compressors Application Hints for Planners, Architects, Plant Manufacturers and Installers Technical Information (Translation of the original text) GEA Refrigeration Germany GmbH _396011 _ti_schkv_gbr_4_.doc 07.02.2012 1

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Reciprocating compressors Application Hints for Planners, Architects, Plant Manufacturers and Installers - 2

TECHNICAL INFORMATION CHILLERS WITH SCREW- AND RECIPROCATING COMPRESSORS Application Hints for Planners, Architects, Plant Manufacturers and Installers COPYRIGHT All Rights reserved. No part of this publication may be copied or published by means of printing, photocopying, microfilm or otherwise without prior written consent of • GEA Refrigeration Germany GmbH herein after called manufacturer. This restriction also applies to the corresponding drawings and diagrams. LEGAL NOTICE This documentation has been written in all conscience. However, the manufacturer cannot be held responsible,...

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Reciprocating compressors Application Hints for Planners, Architects, Plant Manufacturers and Installers - 3

TECHNICAL INFORMATION CHILLERS WITH SCREW- AND RECIPROCATING COMPRESSORS Application Hints for Planners, Architects, Plant Manufacturers and Installers PREFACE Installing liquid chillers in the member states of the European Union EN 378 requirements European directives serve the requirements of machines, systems and services and favour a free turnover of goods and services within the European Union. The Member States of the European Union are obliged to transfer the contents of the directives into national law. So-called Harmonized Norms (EN) are published explaining the requirements of the...

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Reciprocating compressors Application Hints for Planners, Architects, Plant Manufacturers and Installers - 8

TECHNICAL INFORMATION CHILLERS WITH SCREW- AND RECIPROCATING COMPRESSORS Application Hints for Planners, Architects, Plant Manufacturers and Installers 1 APPLICATION HINTS FOR PLANNERS, ARCHITECTS, PLANT MANUFACTURERS AND INSTALLERS 1.1 Machinery room (acc. to EN 378: special machinery room) Room intended for the entire refrigerating system or parts of the refrigerating system. Only trained maintenance or service personnel shall have access to the refrigerating system [EN 378-1:3.22]. 1.2 refrigerant classes Refrigerants are classified according to their flammability and toxicity. The...

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Reciprocating compressors Application Hints for Planners, Architects, Plant Manufacturers and Installers - 9

TECHNICAL INFORMATION CHILLERS WITH SCREW- AND RECIPROCATING COMPRESSORS Application Hints for Planners, Architects, Plant Manufacturers and Installers Refrigerant class Installation area Class C Installation area with access only by authorized personnel GEA Refrigeration Germany GmbH Compressor and liquid collector in a machine room which are not occupied or outside no restriction All refrigerant containing components in an unoccupied machinery room or outside. no restriction no restriction < PGW x V Compressor and liquid collector in a machine room which are not occupied or outside < PGW...

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Reciprocating compressors Application Hints for Planners, Architects, Plant Manufacturers and Installers - 10

TECHNICAL INFORMATION CHILLERS WITH SCREW- AND RECIPROCATING COMPRESSORS Application Hints for Planners, Architects, Plant Manufacturers and Installers 1.5 Examples of machinery room arrangements fig. 1: Machinery room arrangement, example 1 fig. 2: Machinery room arrangement, example 2 The installation of access to the machine room exclusively from outside Image 1, page 11 or the installation of an air lock Image 2, page 11 shall help avoid direct public access to the machinery room. When selecting one of these arrangements, all remaining sections of the building can be transformed into...

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Reciprocating compressors Application Hints for Planners, Architects, Plant Manufacturers and Installers - 11

TECHNICAL INFORMATION CHILLERS WITH SCREW- AND RECIPROCATING COMPRESSORS Application Hints for Planners, Architects, Plant Manufacturers and Installers 1.6 Installation in buildings Installation 1.Basement floor The separate access to the machinery room in this hotel, Image 3, page 12 the installation is designed in a Class C area with unlimited filling levels. There are also no restrictions for basement floors, if all remaining requirements on machinery rooms are observed. fig. 3: Installation in 1. Basement floor Installation 2.Basement floor The machinery room in Image 4, page 12 does...

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Reciprocating compressors Application Hints for Planners, Architects, Plant Manufacturers and Installers - 12

TECHNICAL INFORMATION CHILLERS WITH SCREW- AND RECIPROCATING COMPRESSORS Application Hints for Planners, Architects, Plant Manufacturers and Installers location on upper floor The machinery room has a separate entrance through the stairwell and only accessible by authorized personnel so that the installation in Image 5, page 13 complies with Class C EN378 without any limitations regarding the filling levels. fig. 5: 12 location on upper floor _396011 _ti_schkv_gbr_4_.doc 07.02.2012 GEA Refrigeration Germany GmbH

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Reciprocating compressors Application Hints for Planners, Architects, Plant Manufacturers and Installers - 13

TECHNICAL INFORMATION CHILLERS WITH SCREW- AND RECIPROCATING COMPRESSORS Application Hints for Planners, Architects, Plant Manufacturers and Installers 1.7 Practical Limits for different refrigerants Refrigerant Refrigerant class Practical limit in accordance with EN 378-1; Table E1 R134a A1 0,25 kg/m 3 R404A A1 0,52 kg/m 3 R407C A1 0,31 kg/m 3 R410A A1 0,44 kg/m 3 R507A A1 0,53 kg/m 3 R717 B2 0,00035 kg/m 1.8 3 Comparison between the ammoniac equipment and refrigerant equipment with A1-Refrigerant filling General requirements A1 NH3 Display equipment in the use of pressure release...

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Reciprocating compressors Application Hints for Planners, Architects, Plant Manufacturers and Installers - 14

TECHNICAL INFORMATION CHILLERS WITH SCREW- AND RECIPROCATING COMPRESSORS Application Hints for Planners, Architects, Plant Manufacturers and Installers A1 NH3 Provision of personal safety equipment [EN 378: 93f)] required required Provision of breathing apparatus with filter (protective masks) or independent breathing apparatus [EN 378-3 A.2 and A.3] required required not required required Installation of an emergency shower for body and eyes [EN 378-3: A.34] 1.9 6 requirements on location of liquid chillers in machinery rooms Example A 200 kW-liquid cooling set (L x W x H: approx. 3 m x 1...

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Reciprocating compressors Application Hints for Planners, Architects, Plant Manufacturers and Installers - 15

TECHNICAL INFORMATION CHILLERS WITH SCREW- AND RECIPROCATING COMPRESSORS Application Hints for Planners, Architects, Plant Manufacturers and Installers Machinery room with: – Ventilation – refrigerant detectors – emergency shutdown (remote shutdown) – personal protective equipment 5 m x 10 m x 3,50 m Area 50 m 2 Qo = 200 kW, 60 kg R134a fig. 7: machinery room R134a To avoid the installation of refrigerant detectors in the R134a liquid cooling set, the installation area needs to have 3 a volume of at least 240 m (practical limit shall not be reached) At a room height of 3,50 m, this would...

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