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131001-YUM-A-1205
USER’S INFORMATION
MANUAL
SINGLE PACKAGE AIR CONDITIONER
ELECTRIC/ELECTRIC
ISO 9001
Certified Quality
Management System
Congratulations . . .
On your purchase of one of the most versatile comfort conditioning
systems available in the industry today. This high efficiency system
has been precision designed, manufactured of high quality materials
and has passed many vigorous inspections and tests to ensure years of
satisfactory service.
This booklet is meant to increase your understanding of your system,
tell you how to operate it efficiently and how to obtain the greatest
measure of comfort at the lowest operating expense. Please read this
booklet thoroughly.
We appreciate your interest in our product and your decision to pur-
chase our system. Enjoy your comfort.
The manufacturer recommends that the user read all sec-
tions of this manual and keep the manual for future refer-
ence.
SECTION I: SAFETY
SECTION II: THERMOSTATS
YOUR KEY TO COMFORT
Though thermostats may vary widely in appearance they are all
designed to perform the same basic function, to control the operation of
your air conditioning system. Regardless of size or shape, each thermo-
stat will feature a temperature indicator; a dial, arm, or push button for
selection of the desired temperature; a fan switch to choose the indoor
fan operation; and a comfort switch for you to select the system mode
of operation.
COOLING ONLY
If your air conditioning system is designed to provide cooling only (AC),
with no capability for heating operation (electric heat), a single-stage
cooling only thermostat, with a manual, one-position “Cool” and “Off”
comfort switch is all that is required for system operation.
NOTE: If you have an independent heating system (with a separate
thermostat), always be sure the heating control is turned “Off”
before turning on the cooling system.
COOLING AND HEATING
If your system has been designed to allow both cooling and heating
operation, you may have either a manual change-over type, or a pro-
grammable electronic type thermostat.
MANUAL CHANGE-OVER
Manual change-over simply means that the comfort switch must be
manually positioned every time you wish to switch from the cooling to
heating or heating to cooling modes of operation.
This product must be installed and serviced by a qualified
installer or service agency. Improper installation, adjustment,
alteration, service or maintenance can cause injury or property
damage.
TABLE OF CONTENTS
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
THERMOSTATS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
YOUR KEY TO COMFORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
COOLING ONLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
COOLING AND HEATING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
MANUAL CHANGE-OVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
PROGRAMMABLE ELECTRONIC THERMOSTATS . . . . . . . . . . . . .2
FAN OPERATION SELECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
POWER FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
SYSTEM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
MANUAL CHANGE-OVER THERMOSTAT . . . . . . . . . . . . . . . . . . .2
ELECTRONIC THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
CARE OF SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
COIL CARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
SERVICE CALLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
FILTER CARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
PARTS INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
SOME EFFICIENCY DO’S & DON’TS . . . . . . . . . . . . . . . . . . . . . . . . .3
REPLACEMENT PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3