Dimensions
Connection details
Suction and discharge
connections
Oil drain connection
Oil equalisation connection
Oil sight glass
Schrader
The oil drain connection allows oil to be removed
from the sump for changing, testing, etc. The
fitting contains an extension tube into the oil
sump to more effectively remove the oil. The
connection is a female 1/4" flare fitting.
Note
: on SY/SZ 240 to 380, it is not possible to
drain oil from the suction connection.
SM/SZ 112-124-147: 1"3/4 rotolock connector
allowing use of 1"3/4-7/8" or 1"3/4-1"1/8
SY/SZ240-300-380: 1/2" flare
Other models: 3/8" flare
This connection must be used to mount an oil
equalisation line when two or more compressors
are mounted in parallel (please refer to
Danfoss Parallel Application Guide lines
reference FRCC.PC.005 for details).
The oil fill connection and gauge port is a 1/4"
male flare connector incorporating a schrader
valve.
All Danfoss SM / SY / SZ scroll compressors come
equipped with a sight glass (1"1/8-18 UNF) which
may be used to determine the amount and
condition of the oil contained within the sump.
Model
SM/SZ084-090-100-110-
120-148-161
SM/SZ 175 - SM/SZ/SY185
SM 112-124 -
SM/SZ 147
SY/SZ 240 - 300
SY/SZ 380
Version
V
K-R-S-W-Y
C-J-P-U-X
AL
MA - MB
AA - AB
AA - AB
Suction and discharge connection
brazed
rotolock
brazed
brazed
rotolock
brazed
brazed
Oil sight glass
threaded
threaded
threaded
threaded
threaded
threaded
threaded
Oil equalisation connection
3/8’’ flare
3/8’’ flare
3/8’’ flare
rotolock 1"3/4
1/2’’ flare
1/2’’ flare
1/2’’ flare
Oil drain connection
-
1/4’’ flare
1/4’’ flare
-
1/4’’ flare
1/4’’ flare
1/4’’ flare
Low pressure gauge port (schrader)
1/4’’ flare
1/4’’ flare
1/4’’ flare
1/4" flare
1/4’’ flare
1/4’’ flare
1/4’’ flare
Brazed version
Rotolock version
Brazed
Rotolock
Sleeve included
SM/SZ 084-090-100
Suction
1’’ 1/8
-
-
Discharge
3/4’’
-
-
SM/SZ 110-112-120-
124-147-SM148&161
Suction
1’’ 3/8
-
-
Discharge
7/8’’
-
-
SM/SZ 175-185
Suction
1’’ 5/8
2’’ 1/4
1’’ 3/8
Discharge
1’’ 1/8
1’’ 3/4
7/8’’
SY/SZ 240-300
Suction
1’’ 5/8
2’’ 1/4
1’’ 5/8
Discharge
1’’ 1/8
1’’ 3/4
1’’ 1/8
SY/SZ 380
Suction
2’’ 1/8
-
-
Discharge
1’’ 3/8
-
-
1
2
2
1
Application guidelines
14
FRCC.PC.003.A5.22
