IOM VLH VLC 704 1204

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 18
4.9 Total heat recovery features 18
5 START-UP
5.1 Preliminary check 19
5.2 Start-up 19
5.3 Checking the operation 20
5.4 Delivery to the customer 20
6 CONTROL
6.1 Keyboard & Display Terminal 21
6.2 Display 22
6.3 Key board 22
6.4 Protection and Safety Equipment 25
6.5 HPF version configuration 26
7 GENERAL DESCRIPTION
7.1 Introduction 27
7.2 General specifications 27
7.3 Compressors 27
7.4 Refrigeration circuits 27
7.5 Water heat exchanger 27
7.6 Air heat exchanger 28
7.7 Fans 28
7.8 Electric power supply and
control system 30
7.9 Accessories 30
8 TECHNICAL DATA
8.1 Pressure drop 31
8.2 Technical data 32
8.3 Unit Electrical data 48
8.4 Position of shock adsorbers
and weight distribution on supports 52
8.5 Overall dimensions 54
8.6 Service spaces 57
9 MAINTENANCE
9.1 General requirements 58
9.2 Planned maintenance 58
9.3 Refrigerant charge 59
9.4 Compressor 59
9.5 Condenser 59
9.6 Fans 59
9.7 Dehydrating filter 60
9.8 Sight glass 60
9.9 Electronic expansion valve 60
9.10 Evaporator 60
10 TROUBLESHOOTING 61
11 SPARE PARTS
11.1 Spare part list 63
11.2 Oil for compressors 63
11.3 Wiring diagrams 63
12 DISMANTLING, DEMOLITION
AND SCRAPPING
12.1 Generalities 64
12.2 RAEE Directive 64