Table of Contents 1 48

CHS_LHS

1 Important information 18
1.1 Disclaimer 18
1.2 Where to find product information 18
2 Product description 18
2.1 General information and application 18
2.2 Standard configuration 19
2.3 Options 19
2.4 Code description 20
3 Product labels 21
4 Unpacking and lifting 23
5 Installation 27
5.1 Mounting dimensions 27
5.2 Opposite side connections 27
5.3 Mounting bracket 28
5.4 Technical spaces 28
5.5 Refrigerant connections 29
5.6 Pressure test 29
5.7 Drain line 30
5.8 Electrical connections 30
5.9 Fan motor connections, AC fans 31
5.10 Fan motor connections, EC fans 32
5.11 Electric defrost 33
5.12 Fan shroud heater 33
5.13 Hot-gas connections 34
5.14 Hot-gas defrost (G) 34
5.15 Hot-gas defrost both in coil and drain tray (GB) 35
5.16 Water defrost connections (SB) 36
5.17 Hot glycol defrost 37
5.18 Ammonia refrigerant 38
5.19 CO2 refrigerant 38
5.20 Air streamer 39
5.21 Shut-up sock 39
5.22 Insulated rear air director cover mounting 39
6 Maintenance 43
6.1 Side panel opening 43
6.2 Drain tray opening 43
6.3 Electric defrost elements replacement 44
6.4 Fan replacement 45
6.5 Fan shroud heater replacement 45
7 Spare parts 46
30366461EN-08_Manual_aircoolers-00.pdf 3
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
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