Installation and maintenance are to be per-
formed only by qualified personnel who are fa-
miliar with local codes and regulations and are
experienced with HVAC equipment of this type.
WARNING: Sharp edges, coil surfaces
and rotating fans are a potential injury
hazard – avoid contact.
WARNING: Hazardous voltage – Discon-
nect and Lock Out all incoming power
sources before servicing or installing unit.
ELECTRIC SHOCK CAN CAUSE DEATH.
WARNING: This equipment may be in-
stalled well above finished floor—Use ex-
treme caution when working at heights.
Installer should pay particular attention to
the following words:
NOTE–intended to clarify or make instal-
CAUTION–given to prevent equipment
WARNING–to alert installer that personal
injury and/or equipment damage may
result if installation procedure is not
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-
Failure to follow these warnings could lead to per-
sonal injury or death.
CHECK the assembly and component weights to
be sure that the rigging equipment can handle
Note also, the centers of gravity and any specific
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 or open
access doors until fan is completely stopped. Pres-
sure developed by a moving fan can cause exces-
sive force against the panel which can injure per-
DO NOT work on dampers until their operators are
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.
UNPACKING-CHECK FOR DAMAGE!
Immediately inspect each unit for dam-
age upon receipt.
Inspect units for external and concealed
File any damage claims in accordance
with the Freight Damage Policy and
Terms and Conditions.
Do not repair damaged units without
Protect stored units from damage.
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MMD IOM 1.2 11-10-2020