Connection Details - Danfoss R134a Application Manuallines

Application Guidelines

Connection details

Model
Version
Suction and discharge connection
Oil sight glass
Oil equalisation connection
Oil drain connection
Low pressure gauge port (schrader)
Suction and discharge
connections
Oil sight glass
Oil equalisation connection
Oil drain connection
Schrader
Dimensions
SM/SZ084-090-100-110-
SM/SZ175 - SM/SZ/SY185
120-148-161
V R-Y
brazed rotolock
threaded threaded
3/8" flare 3/8" flare
- 1/4" flare
1/4" flare 1/4" flare
Suction
SM/SZ084-090-100
Discharge
Suction
SM/SZ110-112
Discharge
Suction
SM/SZ120-124
Discharge
Suction
SM/SZ147-SM148-161
Discharge
Suction
SM/SZ175-185
Discharge
Suction
SY240-300
Discharge
Suction
SY380
Discharge
All Danfoss SM / SY / SZ scroll compressors come
equipped with a sight glass (1"1/8-18 UNEF)
which may be used to determine the amount and
condition of the oil contained within the sump.
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
SY240-300-380: 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 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 240 to 380, it is not possible to drain
oil from the suction connection.
The oil fill connection and gauge port is a 1/4"
male flare connector incorporating a schrader
valve.
SM112-124-
SM/SZ147
C-P-X AL MA - MB
brazed brazed rotolock
threaded threaded threaded
3/8" flare rotolock 1"3/4 1/2" flare
1/4" flare - 1/4" flare
1/4" flare 1/4" flare 1/4" flare
Brazed version
Brazed Rotolock
1" 1/8
3/4"
1" 3/8
7/8"
1" 3/8
7/8"
1"3/8
7/8"
1" 5/8
1" 1/8
1" 5/8
1" 1/8
2" 1/8
1" 3/8
SY240-300 SY380
AA - AB AA - AB
brazed brazed
threaded threaded
1/2" flare 1/2" flare
1/4" flare 1/4" flare
1/4" flare 1/4" flare
Rotolock version


Sleeve included
1
- -
- -
- -
- -
- -
- -
- -
- -
2" 1/4 1" 3/8
1" 3/4 7/8"
2" 1/4 1" 5/8
1" 3/4 1" 1/8
- -
- -
AB237986441643en-010801
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