VLS-GB.indd 1 17-06-2009 15:56:42
Page 1
English
Table of contents
1 FOREWORD
1.1 Introduction 2
1.2 Warranty 2
1.3 Emergency stop/Normal stop 2
1.4 An introduction to this manual 2
2 SAFETY
2.1 Foreword 3
2.2 Definitions 3
2.3 Access to the unit 4
2.4 General precautions 4
2.5 Precautions against residual risks 4
2.6 Precautions during maintenance
operations 5
2.7 Safety labels 6
2.8 Safety regulations 8
3 TRANSPORT, LIFTING
AND POSITIONING
3.1 Inspection 11
3.2 Lifting 11
3.3 Anchoring 12
3.4 Storage 12
4 INSTALLATION
4.1 Positioning of the unit 13
4.2 Spring Isolator Installation 13
4.3 External hydraulic circuit 14
4.4 Hydraulic connection 15
4.5 Draining the Defrosting
Waste Water
(for heat pump unit only) 15
4.6 Power supply 16
4.7 Electrical connections 16
4.8 Connecting plate-type evaporator
temperature sensors 19
4.9 Total heat recovery features 19
5 START-UP
5.1 Preliminary check 20
5.2 Start-up 20
5.3 Checking the operation 21
5.4 Delivery to the customer 21
6 CONTROL
6.1 Control of VLS/VLH/VLC with 4
compressors the “Chiller Control”
system 22
6.2 Display 23
6.3 Key board 23
6.4 Protection and safety equipment 26
6.5 HPF version configuration 27
77 GENERAL DESCRIPTION
7.1 Introduction 28
7.2 General specifications 28
7.3 Compressors 28
7.4 Refrigeration circuits 28
7.5 Water heat exchanger 28
7.6 Air heat exchanger 29
7.7 Fans 29
7.8 Electric power supply and
control system 31
7.9 Accessories 31
88 TECHNICAL DATA
8.1 Pressure drop 32
8.2 Technical data 33
8.3 Unit Electrical data 59
8.4 Position of shock absorbers and
weight distribution on supports 63
8.5 Overall dimensions 67
8.6 Services spaces 75
99
MAINTENANCE
9.1 General requirements 76
9.2 Planned maintenance 76
9.3 Refrigerant charge 77
9.4 Compressor 77
9.5 Condenser 77
9.6 Fans 77
9.7 Dehydrating filter 78
9.8 Sight glass 78
9.9 Electronic expansion valve 78
78
79
9.10 Evaporator
10 TROUBLESHOOTING
11 SPARE PARTS
81
81
11.1 Spare parts list
11.2 Oil for compressors
11.3 Wiring diagram 81
12 DISMANTLING, DEMOLITION
AND SCRAPPING
12.1 Generalities 82
12.2 RAEE Directive
82
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