© Danfoss | Climate Solutions | 2022.03
Dimensions
MLZ/MLM scroll compressors could deliver
either braze connection or rotolock connections.
Dedicated Rotolock adaptors and adaptor sets
are available as accessories.
Suction and discharge
connections
Compressor models
Brazed version
Rotolock version
Connection size
Rotolock adaptor set
(
Adaptor,
Gasket,
Sleeve,
Nut)
Rotolock adaptor
(
Adaptor only)
Rotolock
Solder sleeve ODF
Code Number
Code Number
MLM/MLZ090
Suction
1’’ 1/8
Discharge
3/4’’
MLM/MLZ130
Suction
1’’ 5/8
Discharge
1’’ 1/8
MLM/MLZ160-200
Suction
1’’ 5/8
Discharge
1’’ 1/8
MLM/MLZ240
Suction
2’’ 1/8
Discharge
1’’ 3/8
MLM/MLZ116
Suction
1"5/8
2"1/4
1”5/8
7765028
120Z0432
Discharge
1"1/8
1"3/4
1"1/8
120Z0364
Connection details
MLM/MLZ090
MLM/MLZ130
MLM/
MLZ160-200
MLM/MLZ240
MLM/MLZ116
Suction and discharge connections
Brazed
Brazed
Brazed
Brazed
Brazed / Rotolock
Oil sight glass
Threaded
Threaded
Threaded
Threaded
Threaded
Oil equalization connection
Rotolock 1”3/4
Rotolock 1”3/4
1/2” Flare
1/2” Flare
Rotolock 2"1/4
Oil drain connection
-
¼” Flare
¼” Flare
¼” Flare
1/4’’ flare
Low pressure gauge port (Schrader)
¼” Flare
¼” Flare
¼” Flare
¼” Flare
1/4’’ flare
Oil drain connection
Oil sight glass
Danfoss MLZ/MLM090-116-130-160-200-240
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.
The oil fill connection and gauge port is a 1/4"
male flare connector incorporating a Schrader
valve.
MLM/MLZ116: 2”1/4 Rotolock connector allowing
the use of 2”1/4 - 1”3/8. This connection must be
used to mount an oil equalization line when two
compressors are mounted in parallel.
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
incorporating a Schrader valve and is mounted
on MLM/MLZ116 -130-160-200-240 models.
Schrader
Oil equalization connection
Oil fill
connection
and gauge port
Oil drain
connection
14
AB243586442698en-000601
Application Guidelines
Single compressors