Rev. B 08-2017
3
MTEC.4680.GB-B-1 Operation and maintenance manual GH serie English
GH Dehumidifiers for radiant cooling system
INDICE
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. TECNICHAL CHARACTERISTICS ..................................................................................................................................................... 12
3.1 Unit description.............................................................................................................................................................. 12
3.2 Accessories.................................................................................................................................................................... 14
3.3 Unit components............................................................................................................................................................ 15
3.5 Refrigerant circuit layout................................................................................................................................................ 15
3.6 Technical data................................................................................................................................................................ 17
3.7 Hydraulic circuit pressure drops ....................................................................................................................................18
3.8 Operation limits.............................................................................................................................................................. 19
3.9 Sound data .................................................................................................................................................................... 19
3.10 Safety devices ............................................................................................................................................................. 20
3.11 Electric data ................................................................................................................................................................. 20
4. INSTALLATION ................................................................................................................................................................................... 20
4.1 General safety guidelines and and use of symbols ....................................................................................................... 20
4.2. Health and safety Considerations................................................................................................................................. 21
4.3 Personal protective equipment ...................................................................................................................................... 21
4.4 Inspection ...................................................................................................................................................................... 22
4.5 Storage .......................................................................................................................................................................... 22
4.6 Unpacking...................................................................................................................................................................... 22
4.7 Lifting and handling........................................................................................................................................................ 23
4.8 Location and minimum technical clearances................................................................................................................. 23
4.9 Condensate draining connections ................................................................................................................................. 24
4.10 Water coil hydraulic connection ................................................................................................................................... 24
4.11 How to vent the unit ..................................................................................................................................................... 24
4.12 Ductwork unit connection............................................................................................................................................. 25
4.13 Standard version: Remote mechanical hygrostat connection (HYGR.20)................................................................... 27
4.14 WZ version : Remote mechanical hygrostat connection (HYGR.30)........................................................................... 27
4.15 Filter extraction ............................................................................................................................................................ 28
4.16 Electric connections: preliminary safety information.................................................................................................... 29
4.17 Electrical data .............................................................................................................................................................. 29
4.18 Electrical connections.................................................................................................................................................. 30
5. UNIT START UP.................................................................................................................................................................................. 32
5.1 Preliminary checks......................................................................................................................................................... 32
5.2 Control panel ................................................................................................................................................................. 32
6. USE ..................................................................................................................................................................................................... 33
6.1 Unit switch on and first start up...................................................................................................................................... 33
6.2 Stop ............................................................................................................................................................................... 33
6.3 Stand-by ........................................................................................................................................................................ 33
