York 66441-YUM-D-1011 User Manual

USER’S, MAINTENANCE

and

SERVICE INFORMATION

MANUAL

1 5 T H R U 2 5 T O N

S I N G L E P A C K A G E

A I R C O N D I T I O N E R

G A S / E L E C T R I C

& E L E C T R I C / E L E C T R I C

66441-YUM-D-1011

CONTENTS

SAFETY INFORMATION . . . . . . . . . . . . . . . . 2

FOR YOUR SAFETY . . . . . . . . . . . . . . . . . . . . . . . 2

SYSTEM OPERATION . . . . . . . . . . . . . . . . . . 2

THERMOSTATS  . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INTERMITTENT IGNITION DEVICE  . . . . . . . . . . . 2
INPUT   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
OPERATING INSTRUCTIONS  . . . . . . . . . . . . . . . 3
TO SHUT DOWN THE FURNACE:  . . . . . . . . . . . 3
TO LIGHT THE FURNACE: . . . . . . . . . . . . . . . . . 3
VENT SAFETY SYSTEM:  . . . . . . . . . . . . . . . . . . 3
100% SHUT OFF:  . . . . . . . . . . . . . . . . . . . . . . . . 3

EXPLAIN UNIT FUNCTION . . . . . . . . . . . . . . 4

GENERAL MAINTENANCE . . . . . . . . . . . . . . 4

HEATING SYSTEM INSPECTION   . . . . . . . . . . . . 4
BURNER AND PILOT CHECK   . . . . . . . . . . . . . . . 4
CLEANING BURNERS   . . . . . . . . . . . . . . . . . . . . . 5
CLEANING FLUE PASSAGES AND

HEATING ELEMENTS . . . . . . . . . . . . . . . . . . . 5

AIR FILTERS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
ECONOMIZER . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
BLOWER ASSEMBLY  . . . . . . . . . . . . . . . . . . . . . . 6
BLOWER SHAFT BEARING 6
MOTORS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
CONDENSER COIL . . . . . . . . . . . . . . . . . . . . . . . . 7
REGISTERS   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . 7

BEFORE CALLING A SERVICE PERSON: . . . . . 7

The manufacturer recommends that the “User” read all sections of this manual and
keep the manual for future reference.

FIRE OR EXPLOSION HAZARD

Failure to follow safety warnings exactly could
result in serious injury, death, or property dam-
age.
- Do not store or use gasoline or other flamma-
ble vapors and liquids in the vicinity of this or
any other appliance.
- WHAT TO DO IF YOU SMELL GAS:

•Do not try to light any appliance.
•Do not touch any electrical switch; do not use any

phone in your building.

•Leave the building immediately.
•Immediately call your gas supplier from a neigh-

bor’s phone. Follow the gas supplier’s instruc-
tions.

•If you cannot reach your gas supplier, call the fire

department.

- Installation and service must be performed by
a qualified installer, service agency or the gas
supplier.

®