Installation
RT-SVX23G-EN
23
A Rigging illustration and Center-of-Gravity dimensional
data table is shown in
Figure 13, p. 19
. Refer to the typical
unit operating weights table before proceeding.
1.
Remove all drill screws fastening wood protection to
metal baserail. Remove all screws securing wooden
protection to wooden top crate.
On 7½-10 ton high efficiency units, remove wire ties
from outdoor grill.
2. Remove wooden top crate.
3. Rig the unit as shown in
Figure 13, p. 19
. Attach
adequate strength lifting slings to all four lifting
brackets in the unit base rail. Do not use cables, chains,
or slings except as shown.
4. Install a lifting bar, as shown in
Figure 13, p. 19
, to
protect the unit and to facilitate a uniform lift. The
minimum distance between the lifting hook and the
top of the unit should be 7 feet.
5. Test-lift the unit to ensure it is properly rigged and
balanced, make any necessary rigging adjustments.
6. Lift the unit enough to allow the removal of base fork
pocket protection components as shown in the
following figures.
7.
When 10 ton units are installed on smaller existing roof
curb (50"x84") for replacement applications, do not
remove alignment bracket. This bracket helps assure
proper alignment of duct openings.
8. Downflow units; align the base rail of the unit with the
curb rail while lowering the unit onto the curb. Make
sure that the gasket on the curb is not damaged while
positioning the unit.
General Unit Requirements
The checklist listed below is a summary of the steps
required to successfully install a commercial unit. This
checklist is intended to acquaint the installing personnel
with what is required in the installation process. It does not
replace the detailed instructions called out in the
applicable sections of this manual.
•
Check the unit for shipping damage and material
shortage; file a freight claim and notify appropriate
sales representative.
•
Verify correct model, options and voltage from unit
nameplate.
•
Verify that the installation location of the unit will
provide the required clearance for proper operation.
•
Assemble and install the roof curb (if applicable). Refer
to the latest edition of the curb installers guide that
ships with each curb kit.
•
Fabricate and install ductwork; secure ductwork to
curb.
•
Rig the unit.
•
Set the unit onto the curb; check for levelness.
•
Ensure unit-to-curb seal is tight and without buckles or
cracks.
WARNING
Improper Unit Lift!
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. Failure to
properly lift unit could result in unit dropping and
possibly crushing operator/technician which could
result in death or serious injury and possible equipment
or property-only damage.
Figure 22.
Fork lift pockets (all heat pump units except
WSC120)
Figure 23.
Fork lift pockets (WSC120)
NOTICE
