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Fedders F80A User Manual

Model f80a, Installation, operation and maintenance

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Installation, Operation and Maintenance

MODEL F80A

CATEGORY I NATURAL GAS AND LP GAS
MID EFFICIENCY WARM AIR FURNACE

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.

23-23-0427N-006

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

TABLE OF CONTENTS

USER’S INSTRUCTION GUIDE
LOCATED AFTER PAGE 25 OF THIS
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL

Model

Serial Number

Date of Purchase

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.

Keep these instructions for future reference.