York 035-08460-001 User Manual
035-08460-001 Rev. B (0903)
2
Unitary Products Group
C
ongratulations . . .
On your purchase of one of the most versatile comfort conditioning systems available in the industry today. This high effi-
ciency 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 purchase our system. Enjoy your comfort.
ciency 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 purchase our system. Enjoy your comfort.
This high efficiency air conditioning
system has been precision engi-
neered, manufactured of high quality
materials, and has been passed many
rigorous tests and inspections to
ensure years of satisfactory service.
That's why you can rely on efficient,
trouble-free operation.
system has been precision engi-
neered, manufactured of high quality
materials, and has been 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 auto-
matically protected from damage by
voltage fluctuations or excessive heat-
ing or cooling demands.
thermostat and forget it. And it's auto-
matically protected from damage by
voltage fluctuations or excessive heat-
ing or cooling demands.
Your split system air conditioner con-
sists of two units - one installed out-
doors and one installed indoors. The
indoor unit may be installed in a base-
ment, attic, or crawl space.
sists of two units - one installed out-
doors and one installed indoors. The
indoor unit may be installed in a base-
ment, attic, or crawl space.
HOW YOUR AIR
CONDITIONER WORKS
CONDITIONER WORKS
If your hand is wet and you blow on it,
it feels cool because some of the mois-
ture is evaporating and becoming a
vapor. This process requires heat. The
heat is being taken from your hand, so
your hand feels cool.
it feels cool because some of the mois-
ture 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 condi-
tioner. During the cooling cycle, your
system will remove heat and humidity
from your home and will transfer this
heat to the outdoor air.
tioner. During the cooling cycle, your
system will remove heat and humidity
from your home and will transfer this
heat to the outdoor air.
SYSTEM OPERATION
Your thermostat puts full control of the
comfort level in your home at your fin-
gertips.
comfort level in your home at your fin-
gertips.
DO NOT switch your thermostat rap-
idly “On" and “Off" or between “Heat"
to “Cool" This could damage your
equipment. Always allow at least 5
minutes between changes.
idly “On" and “Off" or between “Heat"
to “Cool" This could damage your
equipment. Always allow at least 5
minutes between changes.
SETTING THE THERMOSTAT
System Off - On stand by: No heating,
cooling, or blower air. Set system
switch to “Off" and fan switch to “Auto".
cooling, or blower air. Set system
switch to “Off" and fan switch to “Auto".
Fan Only - On moderate days, usually
during spring and fall, when neither
heating nor cooling is required, you
may want to run only the fan to venti-
late, circulate and filter the air in your
home or building. Set the system
switch to “OFF” and the fan switch to
“ON”. Be sure to return the switches to
their original positions for normal oper-
ation.
during spring and fall, when neither
heating nor cooling is required, you
may want to run only the fan to venti-
late, circulate and filter the air in your
home or building. Set the system
switch to “OFF” and the fan switch to
“ON”. Be sure to return the switches to
their original positions for normal oper-
ation.
Cooling - To operate the air condi-
tioner, set system switch to “Cool", fan
switch to “Auto", and the temperature
selector lever to the desired tempera-
ture. For a cooler temperature, set
lever to lower number. For less cool-
ing, set lever to higher number.
tioner, set system switch to “Cool", fan
switch to “Auto", and the temperature
selector lever to the desired tempera-
ture. For a cooler temperature, set
lever to lower number. For less cool-
ing, set lever to higher number.
Heating - To operate the furnace for
heat, set system switch to “Heat", fan
switch to “Auto", and the temperature
selector lever to the desired tempera-
ture. For a higher temperature, set
lever to higher number. For a lower
temperature, set the lever to a lower
number.
heat, set system switch to “Heat", fan
switch to “Auto", and the temperature
selector lever to the desired tempera-
ture. For a higher temperature, set
lever to higher number. For a lower
temperature, set the lever to a lower
number.
Continuous Air Circulation - Regard-
less of whether heating or cooling the
home: Set fan switch to “On", system
switch to either “Heat" or “Cool" and
the temperature selector lever to the
desired temperature. This provides
continuous air filtering and more even
temperature distribution to all condi-
tioned spaces. The sound level within
the home/building will also remain rela-
tively constant.
less of whether heating or cooling the
home: Set fan switch to “On", system
switch to either “Heat" or “Cool" and
the temperature selector lever to the
desired temperature. This provides
continuous air filtering and more even
temperature distribution to all condi-
tioned spaces. The sound level within
the home/building will also remain rela-
tively constant.
To operate a Programmable/Electronic
thermostat: Refer to its User's Manual.
thermostat: Refer to its User's Manual.
Set your thermostat for heating or for
cooling. Then set it for the desired tem-
perature. Find the temperature that is
most comfortable for you, and then
leave your thermostat alone. Manu-
ally moving the thermostat up or
down to extreme settings will not
speedup temperature changes.
Avoid moving the thermostat up dur-
ing heating - particularly where a
demand type electric meter is installed
and electric furnace is installed for
heating. This will increase your operat-
ing cost substantially.
cooling. Then set it for the desired tem-
perature. Find the temperature that is
most comfortable for you, and then
leave your thermostat alone. Manu-
ally moving the thermostat up or
down to extreme settings will not
speedup temperature changes.
Avoid moving the thermostat up dur-
ing heating - particularly where a
demand type electric meter is installed
and electric furnace is installed for
heating. This will increase your operat-
ing cost substantially.
FIGURE 1:Typical Thermostat
FAN
AUTO
ON
SYSTEM
COOL
HEAT
EXAMPLE OF HEATING
& AIR CONDITIONING
THERMOSTAT
90
80
70
60
60
50
TEMPERATURE
SELECTOR
The main power to the sys-
tem 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 sys-
tem 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.
tem 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 sys-
tem 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.