
Rev. B 07-2013
3
MTEC.3800.GB-B-1 Operation and maintenance WSA series English
WSA Water chiller
INDEX
1. INTRODUCTION................................................................................................................................................................................... 5
1.1 Preliminary information.................................................................................................................................................... 5
1.2 Aim and content of the manual ....................................................................................................................................... 5
1.3 How to store this manual ................................................................................................................................................. 5
1.4 Manual updates ............................................................................................................................................................... 5
1.5 How to use this manual ................................................................................................................................................... 5
1.6 Potential risks .................................................................................................................................................................. 6
1.7 General description of symbols used............................................................................................................................... 7
1.8 Safety symbols used........................................................................................................................................................ 8
1.9 Limitations and prohibited use......................................................................................................................................... 9
1.10 Unit identification .......................................................................................................................................................... 9
2. SAFETY ............................................................................................................................................................................................. 10
2.1 Warning re potentially hazardous toxic substances ...................................................................................................... 10
2.2 Refrigerant handling ..................................................................................................................................................... 10
2.3 Prevention of inhalation of high vapor concentrations................................................................................................... 11
2.4 Procedures in the event of accidental release of refrigerant ......................................................................................... 11
2.5 Main Toxicological information on the type of refrigerant used...................................................................................... 11
2.6 First aid measures ......................................................................................................................................................... 11
3. TECHNICAL CHARACTERISTICS ..................................................................................................................................................... 12
3.1 Unit description.............................................................................................................................................................. 12
3.2 Other versions ............................................................................................................................................................... 14
3.3 Accessories description ................................................................................................................................................. 14
3.4 Technical data................................................................................................................................................................ 15
3.5 Operation limits.............................................................................................................................................................. 19
3.6 Correction tables............................................................................................................................................................ 20
3.7 Sound data .................................................................................................................................................................... 21
4. INSTALLATION ................................................................................................................................................................................... 21
4.1 General safety guidelines and and use of symbols ....................................................................................................... 21
4.2 Workers’ health and safety ........................................................................................................................................... 22
4.3 Personal protective equipment ..................................................................................................................................... 22
4.4 Inspection ...................................................................................................................................................................... 22
4.5 Storage .......................................................................................................................................................................... 23
4.6 Unpacking...................................................................................................................................................................... 23
4.7 Lifting and handling........................................................................................................................................................ 23
4.8 PLocation and minimum technical clearances............................................................................................................... 24
4.9 Installation of rubber vibration dampers (KAVG) ........................................................................................................... 25
4.10 Serial interface card RS485 (INSE)............................................................................................................................. 25
4.11 Source water pump installation.................................................................................................................................... 26
4.12 Hydraulic connections.................................................................................................................................................. 26
4.13 Chemical characteristics of the water.......................................................................................................................... 27
4.14 User circuit minimum water content............................................................................................................................. 27
4.15 Installation with source open circuit (reversible version) .............................................................................................28
4.16 Chemical characteristics of groundwater..................................................................................................................... 28
4.17 Hydraulic components ................................................................................................................................................. 29
4.18 Filling the hydraulic circuit............................................................................................................................................ 32
4.19 Emptying the installation.............................................................................................................................................. 32
4.20 WSA/EV Refrigerant connections................................................................................................................................ 33
4.21 Wiring connections: Preliminary safety information..................................................................................................... 35
4.22 Electric data................................................................................................................................................................. 36
4.23 Electric connections..................................................................................................................................................... 37
4.24 Refrigerant circuit layout.............................................................................................................................................. 38
5. UNIT START UP.................................................................................................................................................................................. 40
5.1 Preliminary Checks........................................................................................................................................................ 40
5.2 Description of the control panel ..................................................................................................................................... 42
5.3 Remote control panel .................................................................................................................................................... 43