Owner`s manual | Aprilaire 8552 Thermostat User Manual

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®
ELECTRONIC THERMOSTAT
Owner’s Manual
MODEL 8552
5-2 Day Programmable
Thermostat
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OWNER’S MANUAL – TABLE OF CONTENTS
Energy Star® Program Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Setting Or Changing The Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Setting Or Changing The Weekday Program For Heating Mode . . . . . . . . . . . . . . . . . . . . . . . . . 5
Program Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Setting Or Changing The Weekend Program For Heating Mode . . . . . . . . . . . . . . . . . . . . . . . . . 9
Setting Cooling Temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Reviewing Programmed Time Schedules And Temperature Settings . . . . . . . . . . . . . . . . . . . . 12
To Start Running The Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
For Best Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Thermostat Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
• Temperature Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
• Time Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
• Equipment Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Optional Settings For Additional Thermostat Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
In Case Of Power Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
© Research Products Corporation 2000
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of t
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By
utili
Acc
are
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and
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Energy Star Program Information
®
1
3
5
6
9
0
2
2
3
3
5
6
7
9
25
25
26
About half of all energy used by households goes to heating and cooling the
home. By selecting a programmable Aprilaire® Electronic Thermostat, you
have made a significant step toward conserving energy usage and costs,
while improving your indoor comfort.
In fact, the Aprilaire Electronic Thermostat Model 8552 has earned the “Energy Star®” designation
of the U.S. Environmental Protection Agency (EPA). This means that your Aprilaire Thermostat is a
highly efficient, cutting edge product that is good for the environment. It saves energy and costs less
to operate than similar products that do not qualify for the Energy Star label.
Energy Star products help you differentiate between standard efficiency and high efficiency products.
By using Energy Star products you are helping to prevent air pollution while saving money on your
utility bills.
According to the EPA, taking advantage of the times that a home is unoccupied or the occupants
are asleep, an Energy Star thermostat can reduce heating and cooling bills by as much as 30%. The
Aprilaire Thermostat has programmable capabilities that allow you full flexibility to set your heating
and cooling systems to meet your comfort and energy needs. As an Energy Star partner, Research
Products has determined that this product meets the Energy Star guidelines for energy efficiency.
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As part of the Energy Star program, your thermostat has been programmed with the following times and
temperatures. This has been done to achieve energy efficiency and lower energy bills. If you need to
modify your program schedule, see page 6.
Pro
time
TIME SCHEDULE
EVENT
THERMOSTAT
SYMBOL
DESIRED
TEMPERATURE
SETTING
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Morning
Heat = 70˚
Cool = 78˚
6:00
am
6:00
am
6:00
am
6:00
am
6:00
am
6:00
am
6:00
am
Day
Heat = 62˚
Cool = 85˚
8:00
am
8:00
am
8:00
am
8:00
am
8:00
am
8:00
am
8:00
am
Evening
Heat = 70˚
Cool = 78˚
5:00
pm
5:00
pm
5:00
pm
5:00
pm
5:00
pm
5:00
pm
5:00
pm
Night
Heat = 62˚
Cool = 82˚
10:00 10:00 10:00 10:00 10:00 10:00 10:00
pm
pm
pm
pm
pm
pm
pm
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IMPORTANT: READ ALL INSTRUCTIONS THOROUGHLY
Programming your Aprilaire Thermostat is done in three easy steps: setting the clock, setting the event
times, and setting your desired temperatures.
un
Setting Or Changing The Clock
Step 1: If you are currently in Daylight Saving Time
00
m
(first Sunday in April thru fourth Sunday in October),
press the DST button and “
“ will appear in the
00
m
lower right-hand corner of the display.
00
m
Step 2: Press the CLOCK button and “Mo”
(or another day of the week) will flash. Use the
:00
m
DECREASE
or INCREASE
button to
change the flashing symbol to the current day
of week.
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Step 3: Press the CLOCK button again and “12:” (hours)
and “AM” or “PM” will flash. Use the DECREASE
INCREASE
or
button to change the flashing symbol
to the current hour making sure the hour has the proper
AM or PM designation.
Step 4: Press the CLOCK button and “:00” (minutes) will
flash. Use the DECREASE
or INCREASE
button
to change the flashing symbol to the current minute.
Step 5: Press the CLOCK button again. The clock is now
Pro
in y
wil
Mo
set
the
and
tem
Sat
bef
set and the current time appears on the display.
NO
wh
tim
hav
rea
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Setting Or Changing The
Weekday Program For Heating Mode
Programming your Aprilaire Electronic Thermostat involves selecting the temperature you want
in your home and selecting the time you want it to be that temperature. Your Aprilaire Thermostat
will allow a maximum of 4 time schedules per day. Each time schedule is known as an “event.” The
Morning event is typically when you wake up and is the first event of the day. The Day event is typically
set when you leave for work. The Evening event is typically set when you come home from work and
the Night event is set when you go to bed. Each event will have 2 temperatures, 1 heating temperature
and 1 cooling temperature. The cooling temperature must be at least 2 degrees higher than the heating
temperature. Your Aprilaire Thermostat allows 1 program for Monday through Friday and 1 program for
Saturday and Sunday. Complete the chart on page 6 with your desired temperatures and time schedules
before beginning programming:
NOTE: It will take some time for your heating or cooling system to reach the desired temperature
when returning from a setback. Therefore, it is suggested you set your program time before the actual
time you want your home to reach the desired temperature. For example, if you get up at 7:00 AM and
have a 6 degree setback, set your Morning event at 6:00 AM to be sure the desired temperature is
reached by 7:00 AM.
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PROGRAM SCHEDULE
TIME SCHEDULE
EVENT
THERMOSTAT
SYMBOL
DESIRED
TEMPERATURE
SETTING
Morning
Heat =
Cool =
Day
Heat =
Cool =
Evening
Heat =
Cool =
Night
Heat =
Cool =
MONDAY –
FRIDAY
SATURDAY &
SUNDAY
NOTE: While programming you must press a button at least every 15 seconds or the thermostat will revert back to the
operational mode. If this happens, simply repeatedly press the PROGRAM button until you get back to where you left
off. The information you have already entered has been retained.
NOTE: If consecutive events have the same temperature, you can skip an event by simultaneously pressing the
PROGRAM and MODE buttons. Press and release the PROGRAM button to advance to the next event.
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Step 1: Press and release the MODE button until the word
“HEAT” and the “
” heating symbol appear on the display.
Step 2: Press and release the
PROGRAM button – “Mo Tu
We Th Fr”; Morning event
symbol “
”;
flashing “12:” (or some
other hour); and flashing “AM” or “PM” will appear on the
display. You are now setting the time you want your heating
or cooling equipment to come on in the morning.
Step 3: Press the DECREASE
button or INCREASE
button to set the desired hour for the Morning “
the
eft
” event.
Step 4: Press and release the PROGRAM button – “:00”
(or some other minutes) will flash.
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Step 5: Press the DECREASE
Ste
button or INCREASE
button to set the desired minutes for the Morning “
”
event (program starting times are set in ten-minute
Ste
You
increments).
Ste
Step 6: Press and release the PROGRAM button – the current
heating temperature will begin to flash. You are now setting
the heating temperature you desire in the morning.
Step 7: Press the DECREASE
button to set the desired heating temperature for the Morning “
Step 8: Press and release the PROGRAM button – the Day “
button or INCREASE
” event.
” event symbol will appear. You are
Ste
“Sa
“12
app
now setting the time and heating temperature you want throughout the day.
and
Step 9: Repeat steps 2-6 to complete programming for the Day “
” event.
Ste
Step 10: Press and release the PROGRAM button – the Evening “
” event symbol will appear.
You are now setting the time and heating temperature you want during the evening.
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pro
Eve
hea
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Step 11: Repeat steps 2-6 to complete programming for the Evening “
Step 12: Press and release the PROGRAM button – the Night “
” event.
” event symbol will appear.
You are now setting the time and heating temperature you want at night.
Step 13: Repeat steps 2-6 to complete programming for the Night “
” event.
ent
Setting Or Changing The
Weekend Program For Heating Mode
Step 1: After setting the Night “
“Sa Su”; the Morning “
” event Weekday program, press and release the PROGRAM button.
” event symbol; flashing
“12:” (or some other hour); and flashing “AM” or “PM” will
appear on the display. You are now programming the time
and temperatures for the weekend.
Step 2: Repeat steps 2-6 identical to Weekday
ar.
programming for Morning “
Evening “
”, and Night “
heating mode as applicable.
”, Day “
”,
” events for
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Setting Cooling Temperatures
NOTE: Cooling temperatures must be set at least 2 degrees higher than heating temperatures.
Ste
We
sta
(Example: If heating temperature is set at 70˚F, cooling temperature must be set to at least 72˚F or higher.)
If not set at least 2 degrees higher, the thermostat will automatically lower the previously programmed
Ste
heating temperature to maintain the 2 degree separation.
unt
NOTE: Your event starting times are the same in the cooling mode program as the heating mode start
Ste
times. Example: If your program start time for the Morning “
butt
” event is 7:00 AM for heating, the
cooling start time is already programmed for 7:00 AM as
eve
well. Once you change the program starting time for an
wa
event, the thermostat automatically
changes the starting time for both the heating and
cooling modes.
Eve
Ste
Step 1: Press and release the MODE button until
the word “COOL” and the “
Ste
We
” cooling symbol
appear on display.
PRO
sym
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Step 2: Press and release the PROGRAM button – “Mo Tu
We Th Fr”; Morning“
” event symbol; and flashing
starting time you programmed will appear on the display.
er.)
d
Step 3: Press and release the PROGRAM button repeatedly
until the temperature flashes.
Step 4: Press the DECREASE
e
button or INCREASE
button to set the desired cooling temperature (for the morning
event). You are now setting the cooling temperature you
want in the morning.
Step 5: Repeat steps 2-4 for the Day “
Evening “
”, and Night “
”,
” events.
Step 6: After selecting the cooling temperature for the
Weekday Night “
” event, press and release the
PROGRAM button. “Sa Su”; Morning “
” event
symbol; and flashing starting time you programmed will appear on
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Step 7: Press and release the PROGRAM button until the temperature for the Morning “
flashes. Repeat steps 2-4 for the Morning “
Night “
”, Day “
”, Evening “
” event
”, and
” events.
The
ope
Reviewing Programmed Time Schedules
And Temperature Settings
Step 1: Press and release the MODE button repeatedly to advance to the desired mode
(heating or cooling).
2
3
Step 2: Press and release the PROGRAM button repeatedly to advance to “Mo Tu We Th Fr”, or “Sa Su”
and specific event. Continue pressing the PROGRAM button to review the time schedules and
temperature settings for each desired event.
To Start Running The Program
After all temperatures and start times have been programmed, press and release the RESUME button
to start running programs. If no button is pressed thermostat will resume automatically in approximately
15 seconds.
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The
bas
set
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For Best Performance
The Aprilaire® Model 8552 thermostat is designed for accurate temperature control and easy
operation. The following guidelines should be followed to ensure proper operation of the thermostat:
1. When the thermostat is operating, close the cover to allow for proper air circulation over the
temperature sensor.
2. Do not place anything which can give off warm or cool air, such as candles or portable
humidifiers, near the thermostat.
Su”
3. Although the thermostat is internally equipped to prevent short cycling of the furnace and air
conditioner, it is possible to inadvertently override this protection. Do not start, stop, and restart
the equipment without allowing a minimum of 2 minutes between heating or cooling cycles.
Thermostat Operation
n
ely
The Model 8552 is a full-featured thermostat which allows for additional control and operations after
basic time and temperature programming is completed. In addition to the programming buttons used to
set up all event times and temperatures, additional buttons control the following functions:
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TE
•
•
•
•
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TEMPERATURE CONTROL
• Reading the Actual Room Temperature: The Model 8552 normally displays the room temperature,
not the set-point temperature.
• Check the Set-Point Temperature: Press and release the DECREASE
button or INCREASE
button. The thermostat will display the programmed set-point temperature and a thermometer for
5 seconds before automatically returning to the actual room temperature display.
• Temporarily Override the Set Temperature: Press and hold the DECREASE
INCREASE
button or
button to change the room set-point temperature in 1 degree increments.
The new set-point temperature will be held for 3 hours, then the thermostat will automatically
return to the program.
• Hold a New Temperature Set Point: Press and hold the DECREASE
button or INCREASE
button to change the room set-point temperature in 1 degree steps. The new set-point temperature
can be maintained indefinitely by pressing and releasing the HOLD button. The word “HOLD” will
be displayed. The thermostat will maintain this new set-point temperature until the RESUME button
is pressed returning the thermostat to the original program. This procedure is typically used during
extended vacant periods (vacations, business trips, etc.), to hold an economical set point until
you return.
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• Returning to Programmed Operation: At any time, press the RESUME button to return the
thermostat to operate as programmed.
EQ
•
• Change Between °C and °F : The thermostat has the capability of displaying either Celsius or
Fahrenheit temperatures. If the displayed temperature seems abnormally high or low
(ie: 70˚F = 21˚C) you may need to switch to ˚C or ˚F by simultaneously pressing the
DECREASE
button and the INCREASE
button.
t
• Checking the Outdoor Temperature: If your thermostat was installed with the optional
Aprilaire Outdoor Temperature Sensor, simply press the OUTDOOR button and the thermostat
will display the outdoor temperature for 3 seconds before automatically returning to the
actual room temperature display.
•
TIME CONTROL
• Change From 12- to 24-Hour Clock: Press and release the CLOCK button, then press the MODE
button. To return to a standard clock, repeat the process.
•
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EQUIPMENT CONTROL
• Turning on the Fan: At any time the system fan can run continuously by pressing the FAN button.
Note that a Fan icon, “
“, appears in the lower part of the display indicating that the fan is
continuously operating. To return the fan to the normal operating mode, press the FAN button again
which will remove the icon from the display. In the normal operating mode the fan will only run when
the heating or air conditioning is operating. Continuous fan operation is beneficial if your system is
equipped with a high efficiency air cleaner or a humidifier, or to circulate air in the home when
neither heating nor air conditioning is needed. For some heat-only systems, continuous fan operation
may not be an option.
• Selecting Cooling Mode: Press the MODE button until the word "COOL" appears on the display.
In this mode the air conditioning system will maintain temperature according to the programming
previously completed unless an override temperature has been entered. Note that a Snowflake icon,
“
“, is on the display, which flashes when the air conditioning is running.
• Selecting Heating Mode: Press the MODE button until the word "HEAT" appears on the display.
In this mode the heating system will maintain temperature according to the programming previously
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completed unless an override temperature has been entered. Note that a Flame icon, “
“ is on the
display, which flickers when the furnace is running.
• Automatic Heating and Cooling: This mode can be useful during times of the year and in climates
when it is cool at night requiring heating but warm in the afternoon requiring cooling. Press and
release the MODE button until the word "AUTO" appears on the display. In this mode the cooling
and heating system will maintain temperature according to the programming previously completed
unless an override temperature has been entered. The heating and cooling systems will not operate
The
prin
con
to b
at the same time. Either will turn on depending on which programmed set point is closest to the
The
room temperature. Note that both the Snowflake, “
nee
“, and Flame, “
“, icons are on the
display. The Snowflake will flash or the Flame will flicker depending on which equipment is running.
• Turning the System Off: Press the MODE button until the word "OFF" appears on the display. In this
mode neither heating or air conditioning will operate regardless of the temperature. The thermostat
can still be programmed, the optional outdoor temperature sensor will work and the furnace fan
will turn on if the FAN button is pressed. To avoid frozen water pipes, DO NOT use the OFF mode for
long periods of time during sub-freezing temperatures.
NOTE: After selecting a new mode, the thermostat initiates a delay of up to 4 minutes to protect the heating and
cooling equipment.
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Optional Settings For
Additional Thermostat Features
The Model 8552 thermostat is equipped with 3 DIP switches located inside the thermostat on the
printed circuit board. These switches are preset by the factory to typical home heating and air
ed
ate
conditioning system requirements. The installing contractor also reviewed the settings during installation
to be sure the thermostat will operate properly with your heating and air conditioning system.
The DIP switches can however be changed to customize the thermostat’s operation to your particular
needs. This should only be done after consulting with your contractor.
ng.
The Model 8552 DIP switches control the following functions:
s
No. 1 – 4 min. / 2 min. Minimum Equipment On/Off Times. This switch is factory preset at 2 minutes.
tat
This switch provides short cycle protection for the furnace and air conditioning unit. If you feel
that the furnace or air conditioning system turns on and off too many times per hour, ask your
or
contractor about changing the switch to a 4 minute minimum on time. Keep in mind however that
this may increase the overall temperature variation in the house due to longer run and off times.
DO NOT change the position of this switch without first consulting with your contractor.
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No. 2 – Keypad Lock. If tampering with the thermostat is expected and unwanted, the keypad can be
If the thermostat does not respond when a button is pushed it may be because the keypad has
To c
rem
The
bef
per
wh
pow
do
the
follo
be
been locked. A Lock icon “
a)
locked by moving this switch from the factory set OFF position to ON. This should not be done until
all programming is finalized. In the locked position only the following functions can be done:
•
The outdoor temperature button will display the outdoor temperature.
•
The DECREASE
button or INCREASE
button will temporarily change the set
point a maximum of plus or minus 3 degrees for a period of 1 hour, before the thermostat
automatically returns to the original program.
“ will appear when a button other than OUTDOOR is pushed if the
keypad has been locked.
No. 3 – Fan with Heat Call. This switch was set by the installing contractor to operate the thermostat
b)
properly with your equipment. DO NOT change the position of this switch without consulting with
the installing contractor.
c)
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To change the DIP switch settings, the thermostat must be
removed from the base which is attached to the wall.
The power to the thermostat must be turned off
before disassembling or the thermostat can be
permanently damaged. If you do not know
where the switch is that controls the
power to your thermostat,
do not attempt to access
the DIP switches. The
following procedure must
be carefully followed:
Figure 1
a) Turn off power to
the thermostat.
b) Completely open the
thermostat cover.
The cover will snap
into this position.
c) Carefully insert a mediumsized flathead screwdriver
into the latch access slot
(see Figure 1).
CAUTION: TO PREVENT DAMAGE, AVOID CONTACT
WITH BLUE TEMPERATURE SENSOR ON BOTTOM RIGHTHAND CORNER OF THERMOSTAT CIRCUIT BOARD.
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Figure 2
d) Gently push in and pry up on the handle of the
screwdriver until the lock tab disengages from the
catch tab (you should feel or hear a click –
see Figure 2).
e) After the latch releases, grip the thermostat panel at
the bottom corners and swing it up and away from
the base to completely separate (See Figure 3).
– 22 –
Figure 3
O
an
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Once the thermostat panel has been opened and removed from the base, turn the thermostat over
and locate the DIP switches found on the circuit board according to the following drawing:
Be careful to change only the intended DIP switches per
the explanation given at the beginning of this section.
After the DIP switches have been set to the desired
position, carefully reassemble the thermostat.
a) Place the cover on the base by lining up the 2 round
pegs on the bottom of the cover with the half circle
cutouts on the top of the base.
Note that the bottom of the
cover when fully open
slides in behind the top
of the base. Swing the
cover fully open. The
cover will stay in place.
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Th
the
up
he
Figure 4
b)
c)
Align the hinge tabs on the base and
thermostat panel. Swing the panel to the
base and snap in place at bottom of
thermostat panel (see Figure 4).
Aft
12:
Turn the thermostat power back on.
CAUTION: TO PREVENT
DAMAGE, AVOID CONTACT WITH BLUE
TEMPERATURE SENSOR ON BOTTOM
RIGHT-HAND CORNER OF THERMOSTAT
CIRCUIT BOARD.
– 24 –
Th
the
If t
ho
int
as
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In Case Of Power Failure
The Model 8552 thermostat does not require a battery. If the power goes out the letters “AC” appear on
the display indicating power is not being supplied to the thermostat. “AC” will remain on the display for
up to approximately 30 minutes after the power goes out. During the period that the power is off, the
heating/cooling system will not operate.
he
This thermostat is equipped with a continuous memory feature which does not require any battery. The
thermostat will never lose what has been programmed regardless of the length of the power outage.
After a period of 30 minutes without power the clock will need to be reset. The clock will default to
12:00 AM. Refer to the Programming Instructions to reset the clock.
Cleaning
If the surface of the thermostat becomes dirty it can be cleaned with plain water or many non-abrasive
household cleaners, such as glass cleaner. When using any cleaner be careful not to get any into the
interior of the thermostat. Do not spray any cleaner directly onto the thermostat. Spray the cleaner onto
a soft cloth and wipe the surface of the thermostat.
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Limited Warranty
Your Research Products Corporation Aprilaire® Thermostat unit is expressly warranted for two (2) years from date of
installation to be free from defects in materials and workmanship.
Research Products Corporation’s exclusive obligation under this warranty shall be to supply, without charge, a
replacement for any thermostat which is found to be defective within a two (2) year period and which is returned, together
with the date of installation, no later than thirty (30) days after said two (2) year period by you to either your original
supplier or to Research Products Corporation, Madison, Wisconsin 53701.
THIS WARRANTY SHALL NOT OBLIGATE RESEARCH PRODUCTS CORPORATION FOR ANY LABOR COSTS AND SHALL
NOT APPLY TO DEFECTS IN WORKMANSHIP OR MATERIALS FURNISHED BY YOUR INSTALLER AS CONTRASTED TO
DEFECTS IN THE THERMOSTAT ITSELF.
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE SHALL
BE LIMITED IN DURATION TO THE AFORESAID TWO YEAR PERIOD. RESEARCH PRODUCTS CORPORATION’S
LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, OTHER THAN DAMAGES FOR PERSONAL INJURIES,
RESULTING FROM ANY BREACH OF THE AFORESAID IMPLIED WARRANTIES OR THE ABOVE LIMITED WARRANTY IS
EXPRESSLY EXCLUDED. THIS LIMITED WARRANTY IS VOID IF DEFECT(S) RESULT FROM FAILURE TO HAVE THIS
THERMOSTAT INSTALLED BY A QUALIFIED HEATING AND AIR CONDITIONING CONTRACTOR. IF THE LIMITED
WARRANTY IS VOID DUE TO FAILURE TO USE A QUALIFIED CONTRACTOR, ALL DISCLAIMERS OF IMPLIED
WARRANTIES SHALL BE EFFECTIVE UPON INSTALLATION.
Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or
consequential damages, so the above exclusion or limitations may not apply to you.
This warranty gives you specific legal rights and you may also have other rights which vary from state
to state.
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NOTES
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NOTES
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NOTES
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The Aprilaire® Total Indoor Air Comfort System is an integrated group of air quality enhancement
products designed to work with your heating and cooling system to make your home more comfortable.
For the best in indoor air quality, ask your heating and cooling contractor about these fine
Aprilaire products, or visit us at www.aprilaire.com for your Indoor Air Solutions.
Automatic Humidifier
High Efficiency Air Cleaner
Fresh Air Exchanger
The Best Cure For Dryness®
Nobody Makes Clean Air Easier ®
Only The Freshest Homes Have April Air™
The world’s first computer-equipped,
completely automatic humidifier.
The economical, trouble-free, high
efficiency air cleaner for your home.
Your best value for a constant, controlled
supply of fresh air with energy-recovery.
Zone Control System
Electronic Thermostat
Custom Comfort Throughout Your Home®
Energy Efficiency Never Looked So Good™
The most reliable way to achieve temperature
control in every area of your home.
Ultra-thin, easy-to-use programmable or digital
controls featuring pinpoint accuracy.
P.O. BOX 1467 • MADISON, WI 53701-1467
Products For Better Indoor Air Quality ™
B2202106
REV. 11/99
110-948
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