Airwell VLS 524 [2/85] English
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Airwell VLS 524 [2/85] English

Airwell VLS 804 [2/85] English
Page 1
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English
1 FOREWORD
1.1 Introduction 3
1.2 Warranty 3
1.3 Emergency stop/Normal stop 3
1.4 An introduction to this manual 3
2 SAFETY
2.1 Foreword 4
2.2 Definitions 4
2.3 Access to the unit 5
2.4 General precautions 5
2.5 Precautions against residual risks 5
2.6 Precautions during maintenance
operations 6
2.7 Safety labels 7
2.8 Safety regulations 9
3 TRANSPORT, LIFTING
AND POSITIONING
3.1 Inspection 12
3.2 Lifting 12
3.3 Anchoring 13
3.4 Storage 13
4 INSTALLATION
4.1 Positioning of the unit 14
4.2 Spring Isolator Installation 14
4.3 External hydraulic circuit 15
4.4 Hydraulic connection 16
4.5 Draining the Defrosting
Waste Water
(for heat pump unit only) 16
4.6 Power supply 17
4.7 Electrical connections 17
4.8 Connecting plate-type evaporator
temperature sensors 20
4.9 Total heat recovery features 20
5 START-UP
5.1 Preliminary check 21
5.2 Start-up 21
5.3 Checking the operation 22
5.4 Delivery to the customer 22
6 CONTROL 23
6.1 Control of VLS/VLH/VLC with 4
compressors the chiller contro system 23
6.2 Display 24
6.3 Key board 24
6.4 Protection and safety equipment 27
6.5 SIF version configuration 28
7 GENERAL DESCRIPTION
7.1 Introduction 29
7.2 General specifications 29
7.3 Compressors 29
7.4 Refrigeration circuits 29
7.5 Water heat exchanger 29
7.6 Air heat exchanger 30
7.7 Fans 30
7.8 Electric power supply and
control system 32
7.9 Accessories 32
8 TECHNICAL DATA
8.1 Pressure drop 33
8.2 Technical data 34
8.3 Unit Electrical data 60
8.4 Position of shock absorbers and
weight distribution on supports 64
8.5 Overall dimensions 68
8.6 Services spaces 76
Table of contents
VLS-eng.qxp 12-04-2007 14:43 Pagina 1

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