English
Page 1
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 the 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 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 the plate -type
evaporator’s temperature sensors 19
4.9 Connecting the temperature sensor
of coupled units’ manifold
(SLS 3804–4004/SLH 2804-3804) 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 OPERATION
6.1 General Informations 23
6.2 Keyboard – Display Terminal Unit 23
6.3 Functions / Keys / Configurations 25
7 GENERAL DESCRIPTION
7.1 Introduction 28
7.2 General specifications 28
7.3 Compressors 28
7.4 Refrigerant circuits 28
7.5 Water heat exchanger 29
7.6 Air heat exchanger 29
7.7 Fans 29
7.8 Power supply and control system 32
7.9 “Chiller Control” 33
7.10 Accessories 33
8 TECHNICAL DATA
8.1 Pressure drops 34
8.2 Technical data 36
8.3 Electrical data 44
8.4 Position of shock absorbers
weigh distribution on supports 50
8.5 Overall dimensions 53
8.6 Service spaces 60
9 MAINTENANCE
9.1 General requirements 61
9.2 Planned maintenance 61
9.3 Refrigerant charge 62
9.4 Compressors 62
9.5 Condenser’s coils 62
9.6 Fans 63
9.7 Dehydrating filter 63
9.8 Sight glass 63
9.9 Thermostatic expansion valve 63
9.10 Evaporator 63
10 TROUBLESHOOTING 64
11 SPARE PARTS
11.1 Spare part list 66
11.2 Oil for compressors 66
11.3 Wiring diagrams 66
12 DISMANTLING, DEMOLITION
AND SCRAPPING
12.1 Generalities 67
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