WARNING:
FIRE OR EXPLOSION HAZARD
• Failure to follow safety warnings exactly
could result in serious injury or property
damage.
• Do not store or use gasoline or other
fl ammable vapors and liquids in the vicinity
of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not
use any phone in your building.
• Leave the building immediately.
• Immediately call your gas supplier from a
neighbors phone. Follow the gas suppliers
instructions.
• If you cannot reach your gas supplier, call
the fi re department.
Installation and service must be performed
by a qualifi ed installer, service agency or the
gas supplier.
WARNING:
PROPOSITION 65 WARNING: This product
contains chemicals known to the state of
California to cause cancer, birth defects or
other reproductive harm.
Gas Furnaces
USER MANUAL
Congratulations on the purchase on your new
furnace. With our dedication to quality, superior
reliability, and outstanding warranty, we know
you will be pleased with this new appliance. This
furnace has been designed and built to provide
many years of safe and dependable home comfort,
providing it is properly installed and regular
maintenance has been performed. Improper use
or insuffi cient maintenance can shorten the life of
the furnace and result in serious personal injury
or property damage. Please read this manual
thoroughly and familiarize yourself with the
safety, operation and maintenace procedures for
this furnace.
M4RC 92.1% AFUE Upfl ow
High Effi ciency Furnaces
M4RL 92.1% AFUE Downfl ow
High Effi ciency Furnaces
