AGL_Unit_ZX_Small_E_Rev03
About these guidelines ................................................................................................ 1
1Safety instructions............................................................................................ 1
1.1 Icon explanation.................................................................................................................1
1.2 Safety statements ..............................................................................................................1
1.3 General instructions...........................................................................................................2
2Product description .......................................................................................... 3
2.1 General information about Copeland ZX Small refrigeration units....................................3
2.2 EU Ecodesign Directive 2009/125/EC...............................................................................3
2.3 Main product features ........................................................................................................3
2.4 Product nameplate.............................................................................................................4
2.5 Nomenclature.....................................................................................................................5
2.6 Application range ...............................................................................................................5
2.6.1 Qualified refrigerants and oils ................................................................................5
2.6.2 Application limits.....................................................................................................5
2.7 Bill of material ....................................................................................................................5
2.8 P&I Diagrams.....................................................................................................................6
2.8.1 P&I diagram for ZXME units...................................................................................6
2.8.2 P&I diagram for ZXLE units....................................................................................7
2.9 Main components description............................................................................................8
2.9.1 Compressor............................................................................................................8
2.9.2 Condenser fan........................................................................................................8
2.9.3 Housing ..................................................................................................................8
2.10 Main control & safety features ...........................................................................................9
2.10.1 Suction pressure control.........................................................................................9
2.10.2 Motor current overload protection ..........................................................................9
2.10.3 Fixed high-pressure switch PS4.............................................................................9
2.10.4 Adjustable low-pressure switch PS1......................................................................9
2.10.5 Crankcase heater...................................................................................................9
2.10.6 Liquid line assembly...............................................................................................9
2.10.7 Room thermostat....................................................................................................9
3Installation....................................................................................................... 10
3.1 Refrigeration unit handling...............................................................................................10
3.1.1 Transport and storage..........................................................................................10
3.1.2 Weights.................................................................................................................10
3.2 Refrigeration piping connections .....................................................................................10
3.2.1 Refrigeration piping installation............................................................................10
3.2.2 Brazing recommendations....................................................................................11
3.2.3Brazing procedure................................................................................................12
3.3 Electrical connection........................................................................................................12
3.3.1 Power supply connections....................................................................................12