02
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.
DANGER
The unit must be permanently grounded. Failure
to do so may result in electrical shock, causing
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 may cause electrical shock,
resulting in personal injury or death.
WARNING
WARNING
Because of possible damage to equipment or
personal injury, installation, service, and
maintenance should be performed by a trained,
qualified service personnel. Consumer service is
recommended only for filter cleaning/
replacement. Never operate the unit with the
access panels removed.
WARNING
These instructions are intended as an aid to
qualified, licensed service personnel 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, service or maintenance,
possibly resulting in fire, electrical shock,
property damage, personal injury or death.
1.2 Safety Precautions
WARNING
PROPOSITION 65: This appliance contains
fiberglass insulation. Respirable particles of
fiberglass are known to the State of California to
cause cancer.
All manufacturer products meet current federal
OSHA Guidelines for safety. California
Proposition 65 warnings are required for certain
products, which are not covered by the OSHA
standards.
California’s Proposition 65 requires warnings for
products sold in California that contain or
produce any of over 600 listed chemicals known
to the State of California to cause cancer or birth
defects such as fiberglass insulation, lead in
brass, and combustion products from natural
vapor.
All “new equipment” shipped for sale in
California will have labels stating that the
product contains and/or produces Proposition 65
chemicals. Although we have not changed our
processes, having the same label on all our
products facilitates manufacturing and shipping.
We cannot always know “when, or if” products
will be sold in the California market.
You may receive inquiries from customers about
chemicals found in, or produced by, some of our
heating and air-conditioning equipment, or found
in natural vapor used with some of our products.
Listed below are those chemicals and
substances commonly associated with similar
equipment in our industry and other
manufacturers.
Glass Wool (Fiberglass) Insulation
Carbon Monoxide (CO)
Formaldehyde
Benzene
More details are available on the following
websites: OSHA (Occupational Safety and
Health Administration), at www.osha.gov and the
State of California’s OEHHA (Office of
Environmental Health Hazard Assessment), at
www.oehha.org. Consumer education is
important since the chemicals and substances
on the list are found in our daily lives. Most
consumers are aware that products present
safety and health risks, when improperly used,
handled and maintained.
WARNING
The first 6 inches of supply air plenum and
ductwork must be constructed of sheet metal as
required by NFPA 90B. The supply air plenum or
duct must have a solid sheet metal bottom
directly under the unit with no openings,
registers or flexible air ducts located in it. If
flexible supply air ducts are used, they may be
located only in the vertical walls of the
rectangular plenum, at a minimum of 6 inches
from the solid bottom. Metal plenum of duct may
be connected to the combustible floor base, if
not, it must be connected to the unit supply duct
exposed to the supply air opening from the
downflow unit. Exposing combustible
(non-metal) material to the supply opening of a
downflow unit can cause a fire resulting in
property damage, personal injury or death.
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