Contents
Manage operating envelope ............................................................................................31
Requirement .......................................................................................................................................................................31
R22, R407C Model variation T .......................................................................................................................................31
R410A Model variation T ................................................................................................................................................31
R22, R410A Model variation U ......................................................................................................................................32
High and low pressure protection ..............................................................................................................................32
System evaluation ............................................................................................................................................................33
Test, criteria and solutions .............................................................................................................................................33
Manage superheat.............................................................................................................34
Requirement .......................................................................................................................................................................34
System evaluation ............................................................................................................................................................34
Test, criteria and solutions .............................................................................................................................................35
Manage off cycle migration ..............................................................................................36
Requirement .......................................................................................................................................................................36
Evaluate the risk ................................................................................................................................................................36
Test, criteria and solutions .............................................................................................................................................37
On/off cycling (cycle rate limit) ....................................................................................................................................37
Provide power supply and electrical protection ............................................................. 38
Wiring information ...........................................................................................................................................................38
Control logic ....................................................................................................................... 39
Safety control logic requirements ..............................................................................................................................39
Cycle rate limit requirements .......................................................................................................................................39
Oil management logic recommendations ..............................................................................................................39
Defrost logic recommendations..................................................................................................................................40
Pump-down logic recommendations .......................................................................................................................40
Reduce moisture in the system ........................................................................................41
Requirements .....................................................................................................................................................................41
Solutions ..............................................................................................................................................................................41
Assembly line procedure ..................................................................................................42
Compressor storage .........................................................................................................................................................42
Compressor holding charge .........................................................................................................................................42
Handling .............................................................................................................................................................................42
Piping assembly ................................................................................................................................................................43
System pressure test and leak detection .................................................................................................................43
Vacuum evacuation and moisture removal ...........................................................................................................44
Refrigerant charging ........................................................................................................................................................44
Dielectric strength and insulation resistance tests ...............................................................................................44
Commissioning ..................................................................................................................45
Preliminary check .............................................................................................................................................................45
Initial start-up .....................................................................................................................................................................45
System monitoring ...........................................................................................................................................................45
Oil level checking and top-up ......................................................................................................................................45
Dismantle and disposal ..................................................................................................... 46
ORDERING INFORMATION ...............................................................................................47
Ordering information and packaging ..............................................................................47
Packaging ............................................................................................................................................................................47
Packaging details ..............................................................................................................................................................47
Compressor code numbers ...........................................................................................................................................48
R22 Single pack .................................................................................................................................................................48
R22 Industrial pack ...........................................................................................................................................................49
R407C Single pack ............................................................................................................................................................50
R407C Industrial pack ......................................................................................................................................................51
R410A Single pack ............................................................................................................................................................52
R410A Industrial pack .....................................................................................................................................................53
Spare parts & accessories ..................................................................................................55
3AB218186428184en-001401