Manual
User's Information Manual
Contents
Danger, Warning and Caution ................ 2
Safety Rules ............................. 3
Combustion Air (Your Safety) ................ 4
Indoor Humidity (Your Comfort) .............. 5
About Your Furnace ....................... 5
Operating Your Furnace .................... 8
Furnace Maintenance ...................... 9
Warranty ............................... 15
Danger,Warning
Recognize safety information.
This is the safety-alert symbol A. When you see this symbol
on the furnace and in instruction manuals be alert to the potential
for personal injury.
Understand the signal words DANGER, WARNING and CAU-
TION. These words are used to identify levels of hazard serious-
ness. The signal word DANGER is only used on product labels to
signify an immediate hazard. The signal words WARNING and
CAUTION will be used on product labels and throughout this
manual and other manuals that may apply to the product.
Signal Words
DANGER - Immediate hazards which WILL result in severe per-
sonal injury or death.
WARNING - Hazards or unsafe practices which COULD result in
severe personal injury or death.
CAUTION - Hazards or unsafe practices which MAY result in mi-
nor personal injury or product or property damage.
"NOTE" is used to highlight suggestions which will result in en-
hanced installation, reliability or operation.
Signal Words in Manuals
The signal word WARNING is used throughout this manual in the
following manner:
and Caution
Product Labeling
Signal words are used in combination with colors and/or pictures
on product labels. Following are examples of product labels with
explanations of the colors used.
Danger Label
White lettering on a black background except the word DANGER
which is white with a red background.
Warning Label
White lettering on a black background except the word
WARNING which is black with an orange background.
The signal word CAUTION is used throughout this manual in the
following manner:
Caution Label
White lettering on a black background except the word CAUTION
which is black with a yellow background.
441 02 2010 04