010-200002-000
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HB IOM 1.1 2-13-2014
WARNING
CHECK the assembly and component weights to
be sure that the rigging equipment can handle
them safely.
Note also, the centers of gravity and any specific
rigging instructions.
CHECK for adequate ventilation so that fumes will
not migrate through ductwork to occupied spaces
when welding or cutting inside air-handling unit
cabinet or plenum.
WHEN STEAM CLEANING COILS be sure that
the area is clear of personnel.
DO NOT attempt to handle access covers and re-
movable panels on outdoor units when winds are
strong or gusting until you have sufficient help to
control them. Make sure panels are properly se-
cured while repairs are being made to a unit.
DO NOT remove access panel fasteners until fan
is completely stopped. Pressure developed by a
moving fan can cause excessive force against the
panel which can injure personnel.
DO NOT work on dampers until their operators are
disconnected.
BE SURE that fans are properly grounded before
working on them.
Failure to follow these warnings could result in per-
sonal injury or equipment damage.
DANGER
NEVER enter an enclosed fan cabinet or reach into
a unit while the fan is running.
LOCK OPEN AND TAG the fan motor power dis-
connect switch before working on a fan. Take fuses
with you and note removal on tag. Electric shock
can cause personal injury or death.
LOCK OPEN AND TAG the electric heat coil power
disconnect switch before working on or near heat-
ers.
Failure to follow these warnings could lead to per-
sonal injury or death.
UNPACKING-CAUTION!
After unpacking the blower section,
REMOVE RED SHIPPING SCREWS
from the blower discharge flanges as indi-
cated in Figures 1 and 2. These screws
stabilize the fans during shipping and need
to be removed.
CAUTION!
Not removing red shipping
screws can result in unsatisfactory vibration
or blower noise or excessive air recircula-
tion.
Figure 1
Remove Red Shipping Screws
(4 per blower discharge—single discharge
shown)
Figure 2
Remove Red Shipping Screws
(one from each blower rail—two total)