CHS_LHS

30366461EN-08 2 LU-VE Group reserves the right to change specifications without prior notification. Index 1 Important information. .............................................................................................................3 1.1 Disclaimer...................................................................................................................................3 1.2 Safety precautions......................................................................................................................3 1.3 Intended use ..............................................................................................................................4 1.4 Where to find product information...............................................................................................4 1.5 Warning symbols........................................................................................................................5 2 General. .....................................................................................................................................5 2.1 Operating principle......................................................................................................................5 2.2 Health and hygiene.....................................................................................................................6 2.3 Transport and storage.................................................................................................................6 2.4 Checks at delivery. .....................................................................................................................6 2.5 Damaged heat exchangers.........................................................................................................6 2.6 Return of unused heat exchangers.............................................................................................6 2.7 Guarantee...................................................................................................................................6 2.8 Disposal .....................................................................................................................................6 3 Installation and Operation. ......................................................................................................7 3.1 Location......................................................................................................................................7 3.2 Lifting..........................................................................................................................................7 3.3 Drainage.....................................................................................................................................7 3.4 Pipework and connections..........................................................................................................7 3.5 Moisture in the refrigeration system............................................................................................8 3.6 Using secondary refrigerants......................................................................................................8 3.7 Distributor position DX or pumped system. ................................................................................8 3.8 Refrigerant distribution................................................................................................................8 3.9 Electrical connections.................................................................................................................8 3.10 Power failure...............................................................................................................................9 3.11 Fan motors..................................................................................................................................9 3.12 Sound level.................................................................................................................................9 3.13 Fan ring heaters..........................................................................................................................9 3.14 Defrost general...........................................................................................................................9 3.15 Electrical defrost.......................................................................................................................10 3.16 Electric defrost termination.......................................................................................................10 3.17 Water defrost............................................................................................................................10 3.18 Hot gas defrost . .......................................................................................................................10 3.19 Drain tray insulation..................................................................................................................10 3.20 Sight glass in the liquid tubing..................................................................................................10 3.21 Commissioning......................................................................................................................... 11 3.22 Switching off . ........................................................................................................................... 11 4 Maintenance............................................................................................................................12 4.1 General ....................................................................................................................................12 4.2 Cleaning and disinfecting..........................................................................................................12 4.3 Casing.......................................................................................................................................12 4.4 Coil and drain tray.....................................................................................................................12 4.5 Fans..........................................................................................................................................12 4.6 Shut down periods....................................................................................................................13 4.7 Electric defrost..........................................................................................................................13 4.8 Replacement of electric heater elements. ................................................................................13 5 Residual risks. ........................................................................................................................14 6 Troubleshooting......................................................................................................................15