GAS-FIRED FURNACES
TUBULAR HEAT EXCHANGER SERIES
INSTALLATION
INSTRUCTION
Supersedes:
650.75-N4U (498)
650.75-N4U (1198)
035-14370-000
FOR YOUR SAFETY
WHAT TO DO IF YOU SMELL GAS
•
Do not try to light any appliance.
•
Open windows.
•
Do not touch any electrical switch;
do not use any phone in your building.
•
Extinguish any open flames
.
•
Immediately call your gas supplier from
a neighbor’s phone. Follow the gas sup-
plier’s instructions.
•
If you cannot reach your gas supplier,
call the fire department.
CATEGORY IV/DUAL CERTIFIED
DIRECT VENT TYPE FSP AND 1-PIPE VENT
FOR YOUR SAFETY
Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance
.
WARNING
IMPROPER INSTALLATION, ADJUSTMENT, AL-
TERATION, SERVICE OR MAINTENANCE CAN
CAUSE INJURY OR PROPERTY DAMAGE. RE-
FER TO THIS MANUAL. FOR ASSISTANCE OR
ADDITIONAL INFORMATION, CONSULT A
QUALIFIED INSTALLER, SERVICE AGENCY OR
THE GAS SUPPLIER.
UPFLOW
CAUTION
THIS PRODUCT MUST BE INSTALLED IN
STRICT COMPLIANCE WITH THE ENCLOSED IN-
STALLATION INSTRUCTIONS AND ANY APPLICA-
BLE LOCAL, STATE, AND NATIONAL CODES
INCLUDING BUT NOT LIMITED TO, BUILD-
I N G , E L E C T R I C A L A N D M E C H A N I C A L
CODES.
WARNING
IMPROPER INSTALLATION MAY CREATE A
CONDITION WHERE THE OPERATION OF THE
PRODUCT COULD CAUSE PERSONAL INJURY
OR PROPERTY DAMAGE.
HORIZONTAL (LEFT)
HORIZONTAL (RIGHT)
DOWNFLOW
DOWNFLOW/HORIZONTAL
40-120 MBH INPUT
UPFLOW
40-140 MBH INPUT
