Application guidelines
43
FRCC.PC.014.A4.22
Installation
Mounting
Removing connections
shipping plugs
VSH 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 a single appli-
cation. The grommets must be compressed until
contact between the flat washer and the steel
mounting sleeve is established. The grommets
attenuate to a great extent the transmission of
compressor vibrations to the base frame.
Before the suction and discharge plugs are
removed, the nitrogen holding charge must be
released via the suction schrader valve to avoid
an oil mist blowout. Remove the suction plug
first and the discharge plug afterwards. The plugs
shall be removed only just before connecting the
compressor to the installation in order to avoid
moisture from entering the compressor. When
the plugs are removed, it is essential to keep the
compressor in an upright position so as to avoid
oil spillage.
Each VSH 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 certified for the weight
of the compressor. A spreader bar rated for the
weight of the compressor is highly recommend-
ed to ensure a better load distribution. The use
of lifting hooks closed with a clasp certified 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 com-
pressor in an upright position during all handling
operations.
Never use only one lifting lug to lift the compres-
sor. The compressor is too heavy for the single
lug to handle, and the risk is that the lug could
separate from the compressor with extensive
damage and possible personal injury as a result.
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 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 exten-
sive damage to both the box and the compo-
nents contained inside.
Compressor handling
0.59 inch
HM 8 bolt
Lock washer
Flat washer
Steel mounting
sleeve
Rubber grommet
Nut
HEAVY
do not lift
manually
The required bolt size for VSH170 compressors is
HM8-55 and must be tightened to a torque of 15
ft.lb.
HM 8 bolt
Lock washer
Flat washer
Steel mounting sleeve
Rubber grommet
Nut
1.10 inch
Compressor
base plate
The required bolt size for the VSH 088 & 117 com-
pressors is HM8-40. This bolt must be tightened
to a torque of 11 ft.lb.
Each compressor is shipped with printed instruc-
tions for installation. These instructions can also
be downloaded from:
www.instructions.cc.danfoss. com