York Affinity AVG, Affinity MV, Latitude AHR, LX MX, LX Series AHE Owner's Manual
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USER’S INFORMATION
ISO 9001
Certified Quality
Management System
MANUAL
AIR HANDLERS
MODELS: ALL
TABLE OF CONTENTS
CONTACT INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
HOW YOUR AIR HANDLER WORKS . . . . . . . . . . . . . . . . . . . . . . . . 1
SYSTEM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SETTING THE THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Fan Operation Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Heating Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Cooling Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
MANUAL CHANGE-OVER THERMOSTAT . . . . . . . . . . . . . . . . . . .2
ELECTRONIC THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
TO MAXIMIZE OPERATING EFFICIENCY . . . . . . . . . . . . . . . . . . . . .2
HEATING CONSERVATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
COOLING CONSERVATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
CARE OF SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
MOTOR LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
PERIODIC INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
AIR FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Filter Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Removing Internally Mounted Air Filters . . . . . . . . . . . . . . . . . . . .3
For Externally Mounted Air Filters . . . . . . . . . . . . . . . . . . . . . . . . .3
How to Clean your Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
CONDENSATE DRAIN LINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
COIL CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
BLOWER CARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
CONT ACT INFORMA TION
• Go to website at www.york.com, then click on “Contact Us” and
follow the instructions.
• Contact us by mail:
This high efficiency Air Handling system has been precision engineered, manufactured of high quality materials, and passed many rigorous tests and inspections to ensure years of satisfactory service. That’s
why you can rely on efficient, trouble-free operation. Your system is fully
automatic. Set the thermostat and forget it. And it’s automatically protected from damage by voltage fluctuations or excessive heating or
cooling demands. Your Air Handler is actually two units – the indoor air
blower and the indoor refrigeration coil, part of the outdoor AC or Heat
Pump system installed with this Air Handler. You may also have an
Electric Resistance Heater kit installed in this air handler.
FIRE OR ELECTRICAL HAZARD
Failure to follow the safety warnings exactly could result in serious
injury, death or property damage.
A fire or electrical hazard may result causing property damage, personal injury or loss of life.
SECTION I: HOW YOUR AIR HANDLER
WORKS
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 a heat pump. During the cooling cycle, your
system will remove heat and humidity from your home and will transfer
this heat to the outdoor air. 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 possible 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.
Johnson Controls Unitary Products
Consumer Relations
5005 York Drive
Norman, OK 73069
SECTION II: 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
Although thermostats may vary widely in appearance, they are all
designed to perform the same basic function: to control the operation of
your air conditioning or heat pump system. Regardless of size or shape,
each thermostat 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.
Only approved thermostats have been tested and are fully compatible
with this equipment. Please be aware that many different thermostats
operate on batteries or “power stealing” principals. These types of thermostats can not be supported as trouble free when used with this product.
A complete operating instruction is provided by the manufacturer for
each thermostat. Familiarize yourself with its proper operation to obtain
the maximum comfort with minimum energy consumption.
If your system has been designed to allow both cooling and heating
operation, you may have either a manual change-over type, or a programmable electronic type thermostat.
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.
The computerized electronic thermostat is actually a sophisticated electronic version of a manual change-over type. This thermostat includes
features which allow “set-back” temperature variations for periods of
sleep, or while you are away during the day, and means energy savings
for you. The thermostat also features a digital clock.
Johnson Controls Unitary Products 1060254-UUM-A-0713
1060254-UUM-A-0713
Fan Operation Selection
A multi-position fan switch allows you to choose the type of fan operation of the indoor fan.
AUTO - With the thermostat fan switch set to “AUTO”, the fan will run
intermittently as required for either heating or cooling. This position will
provide the lowest operating cost. If you purchased one of our thermostats, they have an Intelligent fan mode which continually circulates the
air during occupied modes or when you are at home, and can cycle the
fan during unoccupied mode or during the night while you sleep to further conserve energy.
ON - If the fan switch is set to “ON”, the indoor fan will not shut off. However, the system will still operate as required by room temperatures.
This provides continuous air filtering and more even temperature distribution throughout the house, which is especially useful in houses with
basements.
Usually during spring and fall, when neither heating nor cooling is
required, you may want to run only the fan to ventilate, circulate, and filter the air in your home or building. Set the comfort control switch to
“OFF” and the fan switch to “ON”. Be sure to return the switches to their
original positions for normal operation.
Heating Cycle
With the thermostat in the heating position, and the outdoor temperature in the range of 20 to 30° or below, the outdoor unit will generally run
100%of the time.
All systems can be equipped with balance point control to provide even
more efficient operation. This control will prevent the electric heater
from being energized when the outdoor air is above some predetermined temperature setting (0 to 45°F). At higher temperatures, your
system will provide all the heat your home will ever need. At lower temperatures, the auxiliary heat will be energized to keep your home comfortable.
When the outdoor air is cool and moist, frost may form on the surface of
your outdoor coil. When this frost builds to a certain point, your system
will switch to a defrost cycle. Although you may feel cooler air coming
from your registers, DO NOT adjust your thermostat. The frost will melt
quickly, and your system will return to normal operation automatically.
Cooling Cycle
Switch your thermostat to cool.Select a comfortable thermostat temperature setting, typically between 75 and 80°. Comfort sensations vary
with individuals. The lower the indoor temperature desired, the greater
will be the number of hours your unit must operate.
Set your thermostat 2 or 3°F below normal several hours before entertaining large groups during hot weather. People give off considerable
heat and moisture.
On an extremely hot day, the indoor temperature may rise 3 to 6°F
above the thermostat setting. Properly selected equipment does not
have the capacity to maintain a constant indoor temperature during the
peak load. Over-sizing your system to handle this peak load is not practical because the oversized system would operate much less efficiently
at all other conditions.
MANUAL CHANGE-OVER THERMOSTAT
COOLING YOUR HOME: With the comfort control switch in the
“COOL” position, the system will operate as follows: When the indoor
temperature rises above the level indicated by the temperature adjustment setting, the system will start. The outdoor unit will operate and the
indoor fan will circulate cool, filtered air. When the room temperature is
lowered to the setting selected, the system will shut off.
HEATING YOUR HOME: If your system includes a heating unit and the
comfort control switch is in the “HEAT” position, the system will operate
as follows: When the indoor temperature drops below the level indicated by the temperature adjustment setting, the system will start. The
heating system will operate and the indoor fan will circulate warm, filtered air. When the room temperature rises to the setting selected, the
system will shut off.
Whether heating or cooling, the fan will continue to operate if the fan
switch was set in the “ON or Intelligent” position. The “AUTO” setting on
the fan switch will allow the fan to shut off when your system does.
ELECTRONIC THERMOSTAT
The computerized electronic thermostat, when programmed, will function automatically to operate the system as follows: When the indoor
temperature rises above the higher (COOL) setting, the outdoor unit will
operate and the indoor fan will circulate cool, filtered air. When the room
temperature is lowered to the selected level, the system will shut off.
When the indoor temperature drops below the lower (HEAT) setting, the
heating system will operate, and the indoor fan will circulate the warm,
filtered air. When the indoor temperature rises to the selected setting,
the system will shut off. The indoor fan will either shut off or run continuously, depending upon your choice of fan switch setting.
SECTION III: TO MAXIMIZE OPERATING
EFFICIENCY
HEATING CONSERVATION
For the most efficient operation, keep storm windows and doors closed
all year long. They not only help insulate against heat and cold, but they
also keep out dirt, pollen, and noise.
Closing drapes at night, keeping fireplace dampers closed when not in
use, and running exhaust fans only when necessary will help you to
retain the air you have already paid to heat.
Keep lamps, televisions, or other heat producing sources away from the
thermostat. The thermostat will sense this extra heat and will not be
able to maintain the inside temperature to the desired comfort level.
COOLING CONSERVATION
To comfortably cool your home, your air conditioner must remove both
heat and humidity. Don’t turn your system off even though you will be
away all day. On a hot day, your system may have to operate between 8
to 12 hours to reduce the temperature in your home to a normal comfort
level.
Keep windows closed after sundown. While the outdoor temperature at
night may be lower than indoors, the air is generally loaded with moisture which is soaked up by furniture, carpets, and fabrics. This moisture
must be removed when you restart your system.
The hotter the outside temperature, the greater the load on your system. Therefore do not be alarmed when your system continues to run
after the sun has set on a hot day. Heat is stored in your outside walls
during the day and will continue to flow into your home for several hours
after sunset.
Use your kitchen exhaust fan when cooking. One surface burner on
“HIGH” requires one ton of cooling. Turn on your bathroom exhaust fan
while showering to remove humidity. However, exhaust fans should not
be run excessively. It would decrease efficiency by removing conditioned air.
You can also help your system in the summer by closing drapes or
blinds and by lowering awnings on windows that get direct sunlight.
2 Johnson Controls Unitary Products
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