Danfoss R134a User Manual

Dimensions
Model
SM/SZ084-090-100-110-
120-148-161
SM/SZ175 - SM/SZ/SY185
SM112-124-
SM/SZ147
SY240-300 SY380
Version V R-Y C-P-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" are 3/8" are 3/8" are rotolock 1"3/4 1/2" are 1/2" are 1/2" are
Oil drain connection - 1/4" are 1/4" are - 1/4" are 1/4" are 1/4" are
Low pressure gauge port (schrader) 1/4" are 1/4" are 1/4" are 1/4" are 1/4" are 1/4" are 1/4" are
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
tting contains an extension tube into the oil
sump to more eectively remove the oil. The
connection is a female 1/4" are tting.
Note: on SY 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
SY240-300-380: 1/2" are
Other models: 3/8" are
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 ll connection and gauge port is a 1/4"
male are connector incorporating a schrader
valve.
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.
Brazed version Rotolock version


Brazed Rotolock Sleeve included
SM/SZ084-090-100
Suction 1" 1/8 - -
Discharge 3/4" - -
SM/SZ110-112
Suction 1" 3/8 - -
Discharge 7/8" - -
SM/SZ120-124
Suction 1" 3/8 - -
Discharge 7/8" - -
SM/SZ147-SM148-161
Suction 1"3/8 - -
Discharge 7/8" - -
SM/SZ175-185
Suction 1" 5/8 2" 1/4 1" 3/8
Discharge 1" 1/8 1" 3/4 7/8"
SY240-300
Suction 1" 5/8 2" 1/4 1" 5/8
Discharge 1" 1/8 1" 3/4 1" 1/8
SY380
Suction 2" 1/8 - -
Discharge 1" 3/8 - -
1
2
15AB237986441643en-010801
Application Guidelines

Danfoss R134a Specifications

General

Brand	Danfoss
Model	R134a
Category	Air Compressor
Language	English