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Figure 9 – Chiller Foot/Isolator Orientation
Side View of Unit
Center tube sheet
support leg
Note: The spring isolator must be centered in relation
to the tube sheet. Do not align the isolator with the
flat part of the chiller foot, because the tube sheet is
often off-center.
3. If required, bolt the isolators to the
floor through the slots provided,
or cement the pads.
Note: Fastening the isolators to the
floor is not necessary unless
specified.
4. If the chiller must be fastened to
the isolators, insert capscrews
through the chiller base and into
the holes tapped in the upper
housing of each isolator. However,
do not allow the screws to
protrude below the underside of
the isolator upper housing. An
alternative method of fastening
the chiller to the isolators is to
cement the neoprene pads.
20
General Information
Outside edge of
tube sheet
Center of
Isolator Spring
5. Set the chiller on the isolators;
refer to "Rigging" for lifting
instructions.
The weight of the chiller will force
the upper housing of each isolator
down, perhaps causing it to rest
on the isolator's lower housing.
(Figure 10, 10a illustrates spring
isolator construction.)
6. Check the clearance (labeled X in
Figure 10, 10a ) on each isolator. If
this dimension is less than 1/4" on
any isolator, use a wrench to turn
the adjusting bolt one complete
revolution upward.
Note: When the load is applied to
the isolators (Step 5), the top plate
of each isolator moves down to
compress the springs until either:
a. The springs support the load; or
b. The top plate rests on the
bottom housing of the isolator.
1. If the springs are supporting
the load, screwing down on
the adjusting bolt (Step 7) will
immediately begin to raise
the chiller.
End View of Unit
End of tube
sheet
Note: Place isolator near outside
edge of tube sheet as shown.
7. Turn the adjusting bolt on each of
the remaining isolators to obtain
the required minimum clearance
at X (Figure 10, 10a ) of 1/4".
8. Once the minimum required
clearance is obtained on each of
the isolators, level the chiller by
turning the adjusting bolt on each
of the isolators on the low side of
the unit. Be sure to work from one
isolator to the next. Remember
that the chiller must be level to
within 1/16": over its length and
width, and that clearance X of
each isolator must be at least 1/4
inch.
CDHF-SVN01B-EN
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