ALL POSITION AUTOMATIC
IGNITION FURNACES
INSTALLATION
INSTRUCTIONS
Supersedes: Nothing
650.66-N2V (9/98)
035-15815-401
MODELS: G8C 50 THRU 125 INPUT
& L8C 50 THRU 125 INPUT
TABLE OF CONTENTS
GENERAL INFORMATION ...................................... 1
FURNACE SPECIFICATIONS ................................. 2
PRE-INSTALLATION INSPECTION ........................ 3
CODE COMPLIANCE .............................................. 3
INSTALLATION POSITION...................................... 3
CONVERSION INFORMATION ............................... 3
TO CONVERT FROM DOWNFLOW TO UPFLOW
CONFIGURATION ................................................... 4
TO CONVERT FROM UPFLOW TO DOWNFLOW
CONFIGURATION ................................................... 5
FURNACE LOCATION............................................. 5
COMBUSTION AND VENTILATION AIR................. 6
FURNACE SIZING AND DUCT SYSTEM DESIGN. 8
RETURN AIR AND FILTERS ................................... 8
GAS PIPING ........................................................... 10
VENTING (CATEGORY I) ...................................... 12
SIDEWALL VENTING ............................................ 15
ELECTRICAL WIRING ........................................... 15
WIRING DIGRAM................................................... 17
PRE-OPERATIONAL CHECKS ............................. 18
SEQUENCE OF OPERATION ............................... 18
FURNACE OPERATION ........................................ 18
INSTALLATION CHECKS ...................................... 19
SERVICE INSTRUCTIONS.................................... 21
REPLACEMENT PARTS........................................ 21
GENERAL INFORMATION
These instructions are for the use of qualified
individual specially trained and experienced in
installation of this type equipment and related
system components.
Installation and service personnel are required
by some states to be licensed. Persons not
qualified shall not install this equipment nor
interpret these instructions
NOTE: The words "shall" or "must" indicate a
requirement which is essential to
satisfactory and safe performance.
The words "should" or "may" indicate a
recommendation or advice which is not
essential and not required but which may be
useful or helpful.
NOTE: After installing the furnace, show the user
how to turn off the electrical power and gas
supply to the furnace. Make sure that the
user understands the importance of
following all safety rules.
