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Forklifting Procedure
Important:
Step 1
through
unit using a forklift.
Steps to be taken when forklift is used:
1. Remove the stretch wrap from the unit as described
previously, leaving the unit mounted to the skid.
2. Remove the bolts that secure the unit to the shipping skid.
3. Using a forklift, raise the unit enough to slightly clear the
skid, making sure the unit is level when lifting.
4. If the unit is level, lift the unit off of the skid and place in the
installation location.
Rigging Procedure
WARNING
Heavy Objects!
Failure to follow instructions below or properly lift unit
could result in unit dropping and possibly crushing
operator/technician which could result in death or
serious injury, and equipment or property-only damage.
Ensure that all the lifting equipment used is properly
rated for the weight of the unit being lifted. Each of the
cables (chains or slings), hooks, and shackles used to
lift the unit must be capable of supporting the entire
weight of the unit. Lifting cables (chains or slings) may
not be of the same length. Adjust as necessary for even
unit lift.
WARNING
Improper Unit Lift!
Failure to properly lift unit could result in unit dropping
and possibly crushing operator/technician which could
result in death or serious injury, and equipment or
property-only damage. Test lift unit approximately 24
inches to verify proper center of gravity lift point. To
avoid dropping of unit, reposition lifting point if unit is
not level.
Note: Do not lift unit from above unless spreader bars are
used.
Each module should be lifted using lift straps threaded through
the steel base cutouts and a spreader bar.
Note: If no, or improperly sized, spreader bar is used,
damage to the unit may occur.
NOTICE
Equipment Damage!
To prevent damage, position the spreader bar and
straps so that they do not contact unit piping or control
panel.
CG-SVX044F-EN
Step 4
must be followed to lift
Access Restrictions
All CICD units are designed to pass through a standard 36 inch
doorway. See outline drawings for other important dimensions.
Compressor Mounting
All compressors are rigidly bolted with compressor isolation
mounts to the same compressor mounting frame (rails). No
additional isolation or leveling is required. Inspect prior to start
up to ensure bolts are present and tight, and that no shipping
damage has occurred.
Direct Mounting
The unit can be installed directly on an isolated, rigid mounting
surface as long as the surface is level and will
support the weight of the unit. A mounting hole is provided at
each of the unit mounting locations. See
more details. Provide a means of securely anchoring the unit to
the mounting surface. Level the unit carefully.
Unit Leveling
Before tightening the mounting bolts, level the unit. Check unit
level front-to-back (depth) by using a level, or by placing a level
on the top surface of the unit frame. Unit should be level within
1/8 inch front-to-back (depth). Place the level on the unit frame
and check side to side level. Adjust to within 1/8 inch of level
side-to-side. Use shims as required to properly level the unit.
The serial number information is also on record at the factory.
Typical Water Piping
All building water piping must be flushed prior to making final
connections to the chiller. To reduce heat loss and prevent
condensation, insulation should be applied. Expansion tanks
are also usually required so that chilled water volume changes
can be accommodated.
Avoidance of Short Water Loops
Adequate water volume is an important system design
parameter because it provides for stable chilled water
temperature control and helps limit unacceptable short cycling
of chiller compressors.
The chiller's temperature control sensor is located in the
supply (outlet) water connection or pipe. This location allows
the building to act as a buffer to slow the rate of change of the
system water temperature. If there is not sufficient water
volume in the system to provide an adequate buffer,
temperature control can suffer, resulting in erratic system
operation and excessive compressor cycling.
Typically, a three-minute water loop circulation time is sufficient
to prevent short water loop issues. Therefore, as a guideline,
ensure the volume of water in the chilled water loop is greater
than or equal to three times the evaporator flow rate. For
Installation Mechanical
"Foundation," p. 21
for
23
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