Danfoss R22 - Default Chapter; Table of Contents

Content
Danfoss scroll compression principle .....................4
features ...............................................................5
compressor moDel Designation ...............................6
Nomenclature ........................................................................6
technical specifications .........................................7
50 Hz data ...............................................................................7
60 Hz data ...............................................................................8
Dimensions ...........................................................9
SM/SZ 084-090-100-110-120 ............................................9
SM 112-124-SM/SZ147* .................................................. 10
SM/SZ147 code 3 ...............................................................10
SM/SZ 148-161 ...................................................................11
SM/SZ 175-185 & SY185 ..................................................12
SY/SZ 240-300-380 ............................................................13
Connection details ............................................................14
electrical Data, connections anD wiring .............. 15
Motor voltage ..................................................................... 15
Wiring connections ...........................................................15
IP rating ................................................................................. 16
Terminal box temperature .............................................17
Three phase electrical characteristics ........................ 17
Danfoss MCI soft-start controller ................................. 18
General wiring information ...........................................19
Motor protection ............................................................... 21
Voltage unbalance ............................................................ 23
approval anD certifications ................................ 24
Approvals and certicates ..............................................24
Pressure Equipment Directive 97/23/EC ................... 24
Low voltage directive ....................................................... 24
Machines directives .......................................................... 24
Internal free volume ......................................................... 24
operating conDitions ......................................... 25
Refrigerant and lubricants..............................................25
Motor supply .......................................................................26
Compressor ambient temperature .............................26
Application envelope at dew temperatures ............26
Application envelopes at mean temperatures ....... 28
Discharge temperature protection ............................ 30
High and low pressure protection............................... 30
Cycle rate limit .................................................................... 31
system Design recommenDations .......................... 32
General .................................................................................. 32
Essential piping design considerations ..................... 32
Refrigerant charge limit ..................................................33
O-cycle migration ........................................................... 33
Liquid ood back ...............................................................35
specific application recommenDations .................. 36
Low ambient application ................................................36
Low load operations .........................................................37
Brazed plate heat exchangers .......................................37
Electronic expansion valve ............................................37
Reversible heat pump systems .....................................37
Water utilizing systems ....................................................39
sounD anD vibration management ........................ 40
Starting sound level..........................................................40
Running sound level ........................................................40
Stopping sound level ....................................................... 40
Sound generation in a refrigeration or air
conditioning system .........................................................40
installation ....................................................... 42
Compressor handling and storage..............................42
Compressor mounting ....................................................42
Compressor holding charge .......................................... 43
System cleanliness ............................................................43
Tubing ....................................................................................43
Brazing and soldering ......................................................43
System pressure test ........................................................45
Leak detection .................................................................... 45
Vacuum evacuation and moisture removal ............. 45
Filter driers ........................................................................... 46
Refrigerant charging ........................................................46
Insulation resistance and dielectric strength .......... 46
Commissioning ..................................................................47
Oil level checking and top-up ....................................... 47
orDering information & packaging ...................... 48
Packaging ............................................................................48
Ordering information .......................................................48
accessories ....................................................... 51
3
FRCC.PC.003.A5.22
Application guidelines