PRE-INSTALLATION
Inspection —
Inspect the unit; file a claim with the ship-
ping company if the unit is damaged. Check the packing list
to ensure that the correct items have been received and no-
tify your Carrier representative of any discrepancy.
Rigging and Handling — To transfer the unit from
the shipping platform to the storage or installation site, refer
to the rigging label on the unit and these instructions. (See
Tables 13-15 for motor, component, and coil weights.)
You can use a forklift truck to move units or compo-
nents only if they have full skids. Lift from the heavy
end of the skid. Minimum recommended fork length is
48 in., as shown in Fig. 8.
Do not stack unit components or accessories during stor-
age. Stacking can cause deformation or damage.
Base units are shipped fully assembled, except when sec-
tions are separately ordered or when the unit height exceeds
108 inches. All 39T units can be rigged using the lifting brack-
ets, as shown in Fig. 8.
Connection flanges are provided at every section; to sepa-
rate components at the connection flanges:
1. Remove all fasteners on vertical and horizontal (side and
top) seams.
2. Remove the large through-bolts in lifting brackets and smaller
bolts that hold lifting brackets to the base rail. See Fig. 9.
3. Lift the unit with slings and header bars, using clevises
and pins in the large oval holes in the unit’s lifting
brackets.
When the unit is in its final location, do not remove the
caps from the coil connections until the coil is ready for pip-
ing. Do not remove grease from the fan shaft until the drive
sheave is ready for installation.
During installation, insulation and bottom panels can be
protected by placing a temporary rigid walkway (such as ply-
wood) inside the unit.
Long-Term Storage — If storing the unit before in-
stallation, observe the following precautions:
1. The storage site should be level, rigid, and free of debris.
If the site is in a heavy rain area, set the unit off of the
ground.
2. Do not store the unit in a heavy traffic area or on a
vibrating surface. Vibration can damage stationary
bearings.
3. Ensure that all coil connections have shipping caps in place.
Cover the entire unit with a waterproof tarpaulin or plas-
tic coverall; if the unit is stored on the ground, extend the
cover underneath the unit. Secure the cover with tiedowns
if the unit is outdoors. Do not remove the cover or coil
connection caps until you install the unit.
4. Monthly — Move the coverall, enter the fan section through
the access door or fan inlet, and slowly rotate the fan and
motor by hand. This operation prevents bearing corro-
sion by redistributing the bearing grease.
Fig. 8 — Rigging Labels
UNITS WITH SKIDS
UNITS WITHOUT SKIDS
22
To Next Page
Loading...
Need help?
General
