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1.0 SAFETY INFORMATION
!
WARNING
Because of possible damage to
equipment or personal injury,
installation, service, and mainte-
nance should be performed by a
trained, qualified service person-
nel. Consumer service is recom-
mended only for filter cleaning/
replacement. Never operate the
unit with the access panels
removed.
!
WARNING
(SEE WARNINGS IN REGARD TO DUCTWORK)
Do not install this unit in manufactured (mobile) homes. Improper installation is
more likely in manufactured housing due to ductwork material, size, location, and
arrangement. Installations in manufactured housing can cause a fire resulting in
property damage, personal injury or death.
EXCEPTION:
Manufactured housing installations are approved only with documen-
tation by a recognized inspection authority that the installation has been made in
compliance with the instructions and all warnings have been observed.
!
WARNING
These instructions are intended as an aid to qualified, licensed service person-
nel for proper installation, adjustment and operation of this unit. Read these
instructions thoroughly before attempting installation or operation. Failure to
follow these instructions may result in improper installation, adjustment, ser-
vice or maintenance possibly resulting in fire, electrical shock, property dam-
age, personal injury or death.
!
WARNING
If removal of the blower assembly is
required, all disconnect switches
supplying power to the equipment
must be de-energized and locked (if
not in sight of unit) so the field
power wires can be safely removed
from the blower assembly. Failure to
do so can cause electrical shock
resulting in personal injur y or
death.
!
WARNING
Disconnect all power to unit
before installing or servicing.
More than one disconnect switch
may be required to de-energize
the equipment. Hazardous voltage
can cause severe personal injury
or death.
(SEE SECTION 4.0:
ELECTRICAL WIRING)
(SEE SECTION 12.5: BLOWER
ASSEMBLY REMOVAL &
REPLACEMENT)
!
WARNING
Duct leaks can create an unbalanced system and draw pollutants such as dirt,
dust, fumes and odors into the home causing property damage. Fumes and
odors from toxic, volatile or flammable chemicals, as well as automobile
exhaust and carbon monoxide (CO), can be drawn into the living space
through leaking ducts and unbalanced duct systems causing personal injury
or death (see Figure 1).
• If air-moving equipment or ductwork is located in garages or off-garage stor-
age areas - all joints, seams, and openings in the equipment and duct must
be sealed to limit the migration of toxic fumes and odors including carbon
monoxide from migrating into the living space.
• If air-moving equipment or ductwork is located in spaces containing fuel
burning appliances such as water heaters or boilers - all joints, seams, and
openings in the equipment and duct must also be sealed to prevent depres-
surization of the space and possible migration of combustion byproducts
including carbon monoxide into the living space.
!
WARNING
(SEE SECTION 5.0: DUCTWORK)
Do not, under any circumstances, connect return ductwork to any other heat
producing device such as fireplace insert, stove, etc. Unauthorized use of
such devices may result in fire, carbon monoxide poisoning, explosion, per-
sonal injury or property damage.
!
WARNING
(SEE SECTION 12.0: MAINTENANCE)
Units with circuit breaker(s) meet requirements as a service disconnect switch,
however, if access is required to the line side (covered) of the circuit breaker,
this side of the breaker(s) will be energized with the breaker(s) de-energized.
Contact with the line side can cause electrical shock resulting in personal
injury or death.
!
WARNING
(SEE SECTION 4.3: GROUNDING)
The unit must be permanently grounded. Failure to do so can result in electri-
cal shock causing personal injury or death.
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