Johnson Controls Unitary Products
1183508-UUM-B-0915
USER’S INFORMATION MANUAL
OUTDOOR SPLIT-SYSTEM
AIR CONDITIONING OR HEAT PUMP
MODELS: SINGLE PHASE & THREE PHASE
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TABLE OF CONTENTS
CONTACT INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
HOW YOUR SYSTEM WORKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
COOLING CYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
HEATING CYCLE (HEAT PUMPS) . . . . . . . . . . . . . . . . . . . . . . . . 1
SETTING THE THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
THERMOSTATS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
YOUR KEY TO COMFORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
COOLING ONLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
COOLING AND HEATING (HEAT PUMP) . . . . . . . . . . . . . . . . . . . 2
MANUAL CHANGE-OVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
PROGRAMMABLE ELECTRONIC THERMOSTATS . . . . . . . . . . . . . 2
FAN OPERATION SELECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
AUTO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
POWER FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SYSTEM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
MANUAL CHANGE-OVER THERMOSTAT . . . . . . . . . . . . . . . . . .3
ELECTRONIC THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
TO MAXIMIZE OPERATING EFFICIENCY . . . . . . . . . . . . . . . . . . . . .3
HEATING CONSERVATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
COOLING CONSERVATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
CARE OF SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
COIL CARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
SERVICE CALLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
FILTER CARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
CLEARANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
PARTS INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
EXTENDED WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
SOME EFFICIENCY DO’S & DON’TS . . . . . . . . . . . . . . . . . . . . . .4
CHARACTERISTICS OF HEAT PUMPS . . . . . . . . . . . . . . . . . . . . . . .4
A CONSTANT HEAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
WATER RUN-OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
OUTDOOR COIL DEFROSTING . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
CONTACT INFORMATION
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Go to website at www.york.com, then click on “Contact Us” and
follow the instructions.
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Contact us by mail:
Johnson Controls Unitary Products
Consumer Relations
5005 York Drive
Norman, OK 73069
The manufacturer recommends that the user read this
manual and keep the manual for future reference.
SAFETY
HOW YOUR SYSTEM WORKS
COOLING CYCLE
If your hand is wet and you blow on it, it feels cool because some of the
moisture is evaporating and becoming a vapor. This process requires
heat. The heat is being taken from your hand, so your hand feels cool.
That’s what happens with an air conditioner. During the cooling cycle,
your system will remove heat and humidity from your home and will
transfer this heat to the outdoor air.
HEATING CYCLE (HEAT PUMPS)
During the heating cycle, your system will remove heat and humidity
from the outdoor air and will transfer this heat to your home. This is pos-
sible because even 0°F outdoor air contains a great deal of heat.
Remember that your heat pump doesn’t generate much heat, it merely
transfers it from one place to another.
System Operation
Your thermostat puts full control of the comfort level in your home at
your fingertips. DO NOT switch your thermostat rapidly ON and OFF or
between HEAT to COOL. This could damage your equipment. Always
allow at least 5 minutes between changes.
SETTING THE THERMOSTAT
WARNING
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.
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CAUTION
The main power to the system must be kept ON at all times to prevent
damage to the outdoor unit compressor. If necessary, the thermostat
control switch should be used to turn the system OFF. Should the
main power be disconnected or interrupted for 8 hours or longer, DO
NOT attempt to start the system for 8 hours after the power has been
restored to the outdoor unit. If heat is needed during this 8 hour
period, use emergency heat.
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