Installation, Operation and Maintenance
MODEL F80A
CATEGORY I NATURAL GAS AND LP GAS
MID EFFICIENCY WARM AIR FURNACE
TABLE OF CONTENTS
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . .1 SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 FURNACE SIZING . . . . . . . . . . . . . . . . . . . . . .3 LOCATION of UNIT . . . . . . . . . . . . . . . . . . . .3 INSTALLATION POSITIONS . . . . . . . . . . . . . . .4 AIR CONDITIONING . . . . . . . . . . . . . . . . . . . .4 INSPECTION/ACCESS PANEL . . . . . . . . . . . . .4 CLEARANCES . . . . . . . . . . . . . . . . . . . . . . . . .5 DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . .5 DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . .6 DETERMING COMBUSTION AIR . . . . . . . . . .7 FURNACE VENTING . . . . . . . . . . . . . . . . . . . .8 GAS SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . .12 CONVERSIONS . . . . . . . . . . . . . . . . . . . . . . .13
HIGH ALTITUDE & AIRFLOW
SPECIFICATION TABLES . . . . . . . . . . . . . . . .14 ELECTRICAL SPECIFICATIONS . . . . . . . . . . .15
START UP PROCEDURES/
SEQUENCE OF OPERATION . . . . . . . . . . . . .17 AIR FLOW . . . . . . . . . . . . . . . . . . . . . . . . . . .19 ADJUSTING BLOWER SPEEDS . . . . . . . . . . .19 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . .20 TROUBLESHOOTING . . . . . . . . . . . . . . . . . .21 WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . .25
For future reference write down the model, serial number, and date of purchase. Use these numbers in any correspondence or service calls concerning your furnace.
Model
Serial Number
Date of Purchase
Keep these instructions for future reference.
Please read the operating instructions and safety precautions carefully and thoroughly before installing and operating your furnace. Keep this manual in a safe place for future reference.
USER’S INSTRUCTION GUIDE LOCATED AFTER PAGE 25 OF THIS INSTALLATION, OPERATION AND MAINTENANCE MANUAL
