• To reduce the risk of fire, electric shock, or injury to persons, observe the following:
a) Installation work and electrical wiring must be done by qualified person(s) in
accordance with all applicable codes and standards, including fire-rated
b) Sufficient air is needed for proper combustion and exhausting of gases
through the flue (chimney) of fuel burning equipment to prevent back
drafting. Follow the heating equipment manufacturer's guidelines and safety
standards such as those published by the National Fire Protection
Association (NFPA), and the American Society for Heating, Refrigeration and
Air Conditioning Engineers (ASHRAE), and the local code authorities.
c) When cutting or drilling into wall or ceiling, do not damage electrical wiring
and other hidden utilities.
d) Ducted fans must always be vented outdoors.
e) Use this unit only in the manner intended by the manufacturer. If you have
questions, contact the manufacturer.
f) Before servicing or cleaning unit, switch power off at service panel and lock
the service disconnecting means to prevent power from being switched on
accidentally. When the service disconnecting means cannot be locked,
securely fasten a prominent warning device, such as a tag, to the service
g) Blower must not be installed in a ceiling thermally insulated to a value
greater than R40.
h) Blower must not be installed in furnace ductwork.
• To reduce the risk of fire, use only metal ductwork.