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Application Guidelines
3
AB141686422149en-US0401
Introduction ................................................... 4
Compressor model designation ................... 5
Technical specifications ................................ 6
Dimensions .................................................... 7
Electrical data, connections and wiring ....... 8
Supply Voltage ...................................................................8
Compressor electrical specifications ...........................8
LRA (Locked Rotor Amp)..................................................8
MCC (Maximum Continuous Current) ........................8
Winding resistance ............................................................8
Wiring connections ..........................................................9
Terminal cover mounting ................................................9
Terminal cover removal ....................................................9
IP rating ..................................................................................9
Internal motor protection ...............................................9
Phase sequence and reverse rotation protection ..9
Approvals and certificates ........................... 10
Operating conditions ................................... 11
Refrigerant and lubricants .............................................11
Motor supply.......................................................................11
Compressor ambient temperature .............................11
Application envelope ......................................................12
High and low pressure protection ..............................13
Crankcase heating ............................................................13
Oil return management ..................................................13
On/off cycling (cycle rate limit) ....................................14
Start-up sequence .............................................................14
System design recommendations .............. 15
General ..................................................................................15
Essential piping design considerations .....................15
Refrigerant charge limit .................................................16
Reversible heat pump systems ....................................16
Minimum sump superheat ............................................16
Preventing liquid flood back ........................................16
Water utilising systems ..................................................17
Loss of charge protection...............................................17
Oil level checking and top-up ......................................17
Sound and vibration management ............. 18
Installation .................................................... 20
System cleanliness ............................................................20
Compressor handling and storage .............................20
Compressor mounting ....................................................20
Compressor holding charge ..........................................20
Tube brazing procedure .................................................20
Brazing material .................................................................20
Compressor connection .................................................21
Vacuum evacuation and moisture removal .............21
Liquid line filter driers ......................................................22
Refrigerant charging ........................................................22
Insulation resistance and dielectric strength ..........22
Compressor replacement after motor burn out ....22
Ordering information and packaging ........ 23
Content
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