INSTALLATION INSTRUCTIONS
FOR UPFLOW/HORIZONTAL SINGLE STAGE
GAS FURNACES
(-)801S UPFLOW/HORIZONTAL SERIES
(-)801P UPFLOW/HORIZONTAL SERIES
(-)(-)80MSS UPFLOW/HORIZONTAL SERIES
(-)(-)80MSP UPFLOW/HORIZONTAL SERIES
U.L. and/or C.S.A. recognized fuel gas and CO (carbon monoxide) detectors are rec-
ommended in all applications, and their installation should be in accordance with the
manufacturer’s recommendations and/or local laws, rules, regulations, or customs.
92-24161-142-04
SUPERSEDES 92-24161-142-03
Factory Use Only