Content
D
anfoss
scroll
compression
principle
.....................4
f
eatures
...............................................................5
c
ompressor
moDel
Designation
...............................6
Nomenclature ........................................................................6
t
echnical
specifications
.........................................7
50 Hz data ...............................................................................7
60 Hz data ...............................................................................8
D
imensions
...........................................................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
e
lectrical
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
a
pproval
anD
certifications
................................ 24
Approvals and certificates ..............................................24
Pressure Equipment Directive 97/23/EC ...................24
Low voltage directive .......................................................24
Machines directives ..........................................................24
Internal free volume .........................................................24
o
perating
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
s
ystem
Design
recommenDations
.......................... 32
General ..................................................................................32
Essential piping design considerations .....................32
Refrigerant charge limit ..................................................33
Off-cycle migration ...........................................................33
Liquid flood back ...............................................................35
s
pecific
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
s
ounD
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
i
nstallation
....................................................... 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
o
rDering
information
&
packaging
...................... 48
Packaging ............................................................................48
Ordering information .......................................................48
a
ccessories
....................................................... 51
3
FRCC.PC.003.A5.22
Application guidelines