Johnson Controls Unitary Products AL21 User's Information Manual

USER'S INFORMATION MANUAL
VARIABLE CAPACITY
OUTDOOR SPLIT-SYSTEM
AIR CONDITIONER AND HEAT PUMP
MODELS: YXV, AC21, AL21, YZV, HC20, HL20

CONTACT INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

HOW YOUR SYSTEM WORKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

COOLING CYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

HEATING CYCLE (HEAT PUMPS) . . . . . . . . . . . . . . . . . . . . . . . . 1

SETTING THE THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Your Key To Comfort . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Home Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Secondary Home Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Wi-Fi Network Status Screen . . . . . . . . . . . . . . . . . . . . . . . 2
Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Power Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Hx™ THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
To Maximize Operating Efficiency . . . . . . . . . . . . . . . . . . . . . 3
CONTACT INFORMATION
• Go to website at www.york.com, then click on "Contact Us" and
follow the instructions.
• Contact us by mail:
We recommend that the user read all sections of this
manual and keep the manual for future reference.
WARNING
!
Cancer and Reproductive Harm – www.P65Warnings.ca.gov
SAFETY
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.
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.
Johnson Controls Unitary Products
TABLE OF CONTENTS
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
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 and remotely using a smart device. 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
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.
Johnson Controls Unitary Products
Consumer Relations
5005 York Drive
Norman, OK 73069
CAUTION
!
5321592-UUM-B-0818
®