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Note: Fastening the isolators to the floor is not
necessary unless specified.
4. If the chiller must be fastened to the isolators, insert
cap screws through the chiller base and into holes
drilled and tapped in the upper housing of each isolator.
Important: Do NOT allow the screws to protrude below
the underside of the isolator upper
housing, or interfere with the adjusting
screws. An alternative method of fastening
the chiller to the isolators is to cement the
neoprene pads.
5. Set the chiller on the isolators; refer to
Lift," p.
21. The weight of the chiller will force down the
upper housing of each isolator, and could cause it to
rest on the isolator's lower housing (refer to the
following figure).
6. Check the clearance on each isolator. If this dimension
is less than 1/4 in. (6.35 mm) on any isolator, use a
wrench to turn the adjusting screw one complete
revolution upward.
Note: When the load is applied to the isolators (refer to
Step
5), the top plate of each isolator moves
down to compress the springs until either the
springs support the load or the top plate rests on
the bottom housing of the isolator. If the springs
are supporting the load, screwing down on the
adjusting screw (refer to
chiller.
7. Turn the adjusting screw on each of the remaining
isolators to obtain the required minimum clearance of 1/
4 in. (6.35 mm).
8. Once the minimum required clearance is obtained on
each of the isolators, level the chiller by turning the
adjusting screw on each of the isolators on the low side
of the unit. Work from one isolator to the next.
Important: The chiller must be level to within 1/16 in.
(1.6 mm) over its length and width, and the
clearance of each isolator must be at least
1/4 in. (6.35 mm).
CDHH-SVX003C-EN
"Standard Chiller
Step
7) will raise the
Figure 11. Chiller foot and isolator orientation
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 since the tube
sheet is often off center.
Important: Do NOT install spring isolators or brackets in
such a way that they could inhibit chiller
servicing such as charging or evacuation, oil
tank service, etc.
Leveling the Unit
The chiller must be set level within 1/16 in. (1.6 mm).
1. Measure and make a punch mark an equal distance up
from the bottom of each foot of the chiller.
2. Suspend a clear plastic tube along the length of the
chiller as shown in the following figure.
3. Fill the tube with water until the level aligns with the
punch mark at one end of the chiller.
4. Check the water level at the opposite mark. If the water
level does not align with the punch mark, use full length
shims to raise one end of the chiller until the water level
at each end of the tube aligns with the punch marks at
both ends of the chiller.
5. Once the unit is level across its length, repeat the first
three steps to level the unit across its width. If isolation
pads have been used, shim the center support.
Installation: Mechanical
Outside
edge of
tube sheet
Center of
isolator
spring
Note: The length of the
isolator should be parallel
to the leg.
25
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