User Guide

Application guidelines
44 AB237986441643en-US0701
Installation
Maximum inclination from the vertical plane
while operating must not exceed 3 degrees.
All compressors come delivered with four rubber
mounting grommets and metal sleeve liners that
serve to isolate the compressor from the base
frame. These grommets must always be used to
mount the compressor in single application.
These grommets attenuate to a great extent the
transmission of compressor vibrations to the base
frame. The grommets must be compressed until
contact between the at washer and the steel-
mounting sleeve is established.
Each Danfoss SM / SY / SZ scroll compressor is
equipped with two lift rings on the top shell.
Always use both these rings when lifting the
compressor. Use lifting equipment rated and
certied for the weight of the compressor.
A spreader bar rated for the weight of the
compressor is highly recommended to ensure a
better load distribution. The use of lifting hooks
closed with a clasp and certied to lift the weight
of the compressor is also highly recommended.
Always respect the appropriate rules concerning
lifting objects of the type and weight of these
compressors. Maintain the compressor in an
upright position during all handling manoeuvres
(maximum of 15° from vertical).
Never use only one lifting lug to lift the
compressor. The compressor is too heavy for the
single lug to handle, and the risk is run that the
lug could separate from the compressor with
extensive damage and possible personal injury
as a result.
Store the compressor not exposed to rain,
corrosive or ammable atmosphere between
-31°F and 127°F when charged with refrigerant
and between -31°F and 158°F when charged with
nitrogen.
When the compressor is mounted as part
of an installation, never use the lift rings on the
compressor to lift the installation. The risk is run
that the lugs could separate from the compressor
or that the compressor could separate from the
base frame with extensive damage and possible
personal injury as a result.
Never apply force to the terminal box with the
intention of moving the compressor, as the
force placed upon the terminal box can cause
extensive damage to both the box and the
components contained inside.
Each SM / SY / SZ compressor is shipped with
printed Instructions for installation. These
instructions can also be downloaded from our
web site:
www.danfoss.com or directly from:
http://instructions.cc.danfoss.com
Compressor mounting
Compressor handling and
storage
Mounting of SM/SZ 084-090-100-110-120-
148-161-175-185: the required bolt size is HM8.
This bolt must be tightened to a torque of 15
ft.lbs. The bolts and washers are supplied with
the assembly kit.
Mounting of SM/SZ 112-124-147: the required
bolt size is HM8. This bolt must be tightened to
a torque of 11 ft/lbs. The bolt and washers are
supplied with the assembly kit. When a surface
sump heater is used, it must be applied after
grommets are mounted on compressor in order
to avoid surface sump heater damage.
HEAVY
do not lift
manually
HM 8 bolt
Lock washer
Flat washer
Steel mounting sleeve
Rubber grommet
Nut
1.10 inch
Compressor
base plate
0.59 inch
HM 8 bolt
Lock washer
Flat washer
Steel mounting
sleeve
Rubber grommet
Nut