26
CVHH-SVX001G-EN
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.
IIm
mp
po
orrtta
an
ntt:: 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
. 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.
N
No
otte
e:: When the load is applied to the isolators
(refer to
), 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
) will raise the 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.
IIm
mp
po
orrtta
an
ntt:: 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).
Figure 11. Chiller foot and isolator orientation
Side View of Unit
End View of Unit
Center
tube sheet
support leg
Outside
edge of
tube sheet
Center of
isolator
spring
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.
Note: The length of the
isolator should be parallel
to the leg.
IIm
mp
po
orrtta
an
ntt:: 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.
Summary of Contents for CVHH CenTraVac
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