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ATTENTION INSTALLERS:
It is your responsibility to know this product better than your
customer. This includes being able to install the product
according to strict safety guidelines and instructing the
customer on how to operate and maintain the equipment for
the life of the product. Safety should always be the deciding
factor when installing this product and using common sense
plays an important role as well. Pay attention to all safety
warnings and any other special notes highlighted in the
manual. Improper installation of the furnace or failure to
follow safety warnings could result in serious injury, death,
or property damage.
These instructions are primarily intended to assist qualifi ed
individuals experienced in the proper installation of this
appliance. Some local codes require licensed installation/
service personnel for this type of equipment. Please read all
instructions carefully before starting the installation. Return
these instructions to the customer’s package for future
reference
.
GAS FURNACES
Installation Instructions
92.1% AFUE
PROPOSITION 65 WARNING: This product
contains chemicals known to the state of
California to cause cancer, birth defects or
other reproductive harm.
WARNING:
DO NOT DESTROY.
KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.
FIRE OR EXPLOSION HAZARD
• Failure to follow safety warnings exactly
could result in serious injury or property
damage.
• Installation and service must be performed
by a qualifi ed installer, service agency or
the gas supplier.
• 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.
WARNING:
Single Stage Condensing Gas Furnaces
M4RC Upfl ow Furnace
M4RL Downfl ow Furnace