
EN/10.2021/i04 © STULZ S.p.A. – all rights reserved
WLA COMPACT - TRANSLATION OF ORIGINAL INSTRUCTIONS
Summary
1.Introduction.................................................................................................................................................. 6
1.1.Introduction................................................................................................................................... 6;
1.2.Warranty.......................................................................................................................................... 6;
1.3.Annex.................................................................................................................................................. 6
2.Safety.................................................................................................................................................................7
2.1.Symbols used in the manual..........................................................................................7;
2.2.Labels.................................................................................................................................................7;
2.3.Safety instructions.................................................................................................................. 9;
2.4.Handling refrigerants........................................................................................................... 9;
2.5.Safety and environmental requirement ............................................................10
3.Residual risk............................................................................................................................................... 11
3.1.Refrigerant safety data.......................................................................................................12
4.Moving and storage........................................................................................................................... 15
4.1.Receipt............................................................................................................................................ 15;
4.2.Handling........................................................................................................................................16;
4.3.Removing of the packaging........................................................................................16;
4.4.Storage ...........................................................................................................................................16
5.Description..................................................................................................................................................17
5.1.Coding............................................................................................................................................. 17;
5.2.Intended and unintended use................................................................................... 18;
5.3.Layout of the components, principle and mode operation............18;
5.4.Components of the refrigerant circuit................................................................19;
5.5.Safety components of the refrigerant circuit.............................................. 20;
5.6.Protection components of the refrigerant circuit................................... 20;
5.7.Components of the hydraulic circuit.................................................................. 20;
5.8.Air circuit........................................................................................................................................21;
5.9.Protection and control electric components................................................21;
5.10.Hydro-cooling circuits....................................................................................................23
6.Technical data........................................................................................................................................26
6.1.Application limits...................................................................................................................26;
6.2.Features of primary fluid................................................................................................27;
6.3.Technical data.........................................................................................................................28;
6.4.Available pressure...............................................................................................................34;
6.5.Pressure losses......................................................................................................................35;
6.6.Calibration of automatic bypass............................................................................ 36;
6.7.Dimensional drawings.......................................................................................................37
7.Installation ..................................................................................................................................................39
7.1.Positioning .................................................................................................................................. 39;
7.2.Hydraulic connections.................................................................................................... 40;
7.3.Electrical connections..................................................................................................... 40;
7.4.Commissioning preliminary operations..............................................................41
8.Commissioning......................................................................................................................................43
8.1.Start up...........................................................................................................................................43;
8.2.Checks to be performed after start up..............................................................44;
8.3.Deactivation ...............................................................................................................................44
9.Maintenance ............................................................................................................................................45
9.1.Warnings ......................................................................................................................................45;
4