Aprilaire 8533 Manuel utilisateur

ELECTRONICTHERMOSTAT

Owner’sManual

MODELS

8533, 8534 & 8538

Digital Heat/Cool Thermostats

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OWNER’S MANUAL – TABLE OF CONTENTS

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Getting Familiar With The Aprilaire®Thermostat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

• Temperature Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

• Mode Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

• Temperature Settings – Day/Night Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

• Fan Button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

• Outdoor Button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Setting Up The Aprilaire Thermostat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Operating The Aprilaire Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Changing The Current Temperature Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Optional Feature – Locking The Keypad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

In Case Of Power Failure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Limited Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

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– 1 –

IMPORTANT: READ ALL INSTRUCTIONS THOROUGHLY

Introduction

Thank you for your recent Aprilaire®Electronic Thermostat purchase. We sincerely

appreciate your business and are pleased to add your name to our growing list of customers.

With this purchase, you have invested in the highest quality equipment currently available.

Please be assured that in addition to product quality, we are committed to total product

performance and complete customer satisfaction.

Now, please take a few minutes to familiarize yourself with your new Aprilaire Thermostat. In

order to take advantage of all the benefits of your new thermostat, it is important that you

understand how to operate it.

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Fan

Mode

Day/Night

Outdoor

Press to raise and lower set point. Press both at the

same time to switch between ˚F and ˚C.Press and

release to view current set point.

Press to display

outdoor temperature

(w/optional Model 8041

Remote Outdoor

Sensor only).

Press to select

Heat/Cool/Auto/Off.

(Auto for Models 8534

& 8538 only)

Press for continuous

fan. Press again to

resume to auto fan.

Aprilaire

Digital Heat/Cool Thermostat

Fan icon displays during

continuous fan only.

Heat and Cool Mode

icons.Both displayed

during Auto Mode.

Flame flickers during

heat call and Snowflake

flashes during cool call.

Set-point icon displays

the active set point

(full sun = Day set

point, partial moon

= Night set point).

Press to change

set point to either

the Day or Night

preset value.

Temperature ˚F or ˚C.

Room temp. normally

displayed. Press

Outdoor button to

display outdoor temp.

(Model 8041 Remote

Outdoor Sensor

required).

Displays mode when

changing (Heat,Cool,

Off, and Auto).

(Auto for Models 8534

& 8538 only)

– 2 –

Figure 1 - Display and Button Description

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– 3 –

Getting Familiar with the AprilaireThermostat

(refer to Figure 1)

The LCD (Liquid Crystal Display) normally shows: the room temperature, the current mode of operation, if

the Day or Night temperature setting is being used, and if the system fan is set for continuous operation.

Temperature Display

Room temperature can be displayed in either degrees Fahrenheit or degrees Celsius. If the displayed

temperature seems abnormally high or low (example: 70˚F is equal to 21˚C), press the DECREASE

button and INCREASE button simultaneously to switch between ˚F and ˚C.

Mode Button

Three modes of operation are available for all the Heat/Cool thermostat models: Heat, Cool, and Off.

Additionally, with the Models 8534 and 8538, “AUtO” mode is available. The mode of operation indicates

how you want your heating and cooling equipment to operate. Press the MODE button until the desired

mode of operation shows on the display.

Temperature Settings - Day/Night Button

The thermostat stores four temperature settings in its memory, two for heating and two for cooling. The

two temperatures for each mode are called the Day setting ” “ (a sun icon appears on the display)

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and the Night setting “ “ (a moon icon appears on the display). The Day setting is intended to be an

occupied or comfort setting and the Night setting is intended to be an unoccupied or energy savings

setting. For example the four settings stored in the memory of the thermostat might be as shown in

Table 1. Pressing the DAY/NIGHT button allows you to instantly change to a more economical setting

when leaving the house or going to bed, and to a comfort setting

when returning home or waking up. This thermostat is equipped

with accessory inputs which can be used to automatically

switch between day and night set points; contact your installing

contractor for more details.

Fan Button

The system fan will operate automatically during a heating or cooling cycle. If it is desired to run the fan

continuously, press the FAN button, and a Fan “ “ icon will appear on the display.

Outdoor Button

This button will be made functional when the optional Aprilaire Model 8041 Remote Outdoor Sensor has

been installed. It can then be used to find out the outdoor temperature from indoors. If the Model 8041

Remote Outdoor Sensor has not been installed, two dashes “– –” will appear on the display when this

button is pushed. – 4 –

MODE DAY NIGHT

Heat 68˚F 60˚F

Cool 78˚F 85˚F

Table 1 – Typical Set Point Values

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Setting Up The Aprilaire Thermostat

To ensure accurate temperature control, observe the following simple guidelines:

•When the thermostat is operating, close the cover to allow proper air circulation over the

temperature sensor.

•Do not place anything which can give off warm or cool air, such as candles or portable humidifiers,

near the thermostat.

1. Adjusting the Heat Temperature Settings. There are

two settings, the Day setting “ “ (a sun icon

appears on the display) and the Night setting “ “

(a partial moon icon appears on the display).

See Figure 2.

a. Press the MODE button repeatedly until HEAt

appears on the display.

b. Press the DAY/NIGHT button until the “ “ icon

(Day setting) appears on the display.

c. Use the DECREASE button and INCREASE

button to adjust the setting. – 5 –

DAY NIGHT

Figure 2 - Adjust Heat Settings

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– 6 –

d. Press the DAY/NIGHT button until the “ “ icon (Night setting) appears on the display.

e. Use the DECREASE button and INCREASE button to adjust the setting.

2. Adjusting the Cool Temperature Settings. There are two

settings, the Day setting “ “ (a sun icon appears on

the display when this setting is being used) and the Night

setting “ “ (a partial moon icon appears on the display

when this setting is being used). See Figure 3.

a. Press the MODE button repeatedly until COOL

appears on the display.

b. Press the DAY/NIGHT button until the “ “ icon

(Day setting) appears on the display.

c. Use the DECREASE button and INCREASE

button to adjust the setting.

d. Press the DAY/NIGHT button until the “ “ icon (Night setting) appears on the display.

e. Use the DECREASE button and INCREASE button to adjust the setting.

DAY NIGHT

Figure 3 - Adjust Cool Settings

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Operating The Aprilaire Thermostat

1. Select the mode of operation by repeatedly pressing the MODE button until the desired mode

appears on the display. The heating and cooling system may be turned off by selecting the “OFF”

mode. Do not set to the “OFF” mode during periods when freezing temperatures may occur.

• COOL: In the “COOL” mode a Snowflake “ “ icon appears on the display, which flashes

when the air conditioning is running.

• HEAT: In the “HEAt” mode a Flame “ “ icon appears on the display, which flickers when the

furnace is running.

• AUTO (Models 8534 and 8538 only): In the “AUtO” mode, the heating and cooling system will

operate in either the “HEAt” or “COOL” mode depending on which current setting the room

temperature is closest to. Note that both the Snowflake “ “ and Flame “ “ icons

appear on the display.

– 7 –

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– 8 –

2. Select the temperature setting to be used by pressing the DAY/NIGHT button until the

desired previously stored temperature setting (Day or Night) appears on the display. Use the

DECREASE button and INCREASE button to change the temperature if desired (NOTE

that if changed, the new set point will be permanently stored in memory - see CHANGING THE

CURRENT TEMPERATURE SETTING).

3. After approximately 5 seconds the thermostat will return to the normal display.

Note: This thermostat utilizes time delays to protect the heating and cooling equipment. If the

equipment does not shut off or turn on immediately when the temperature setting has been

changed, it may be due to the built-in time delays (4 minutes max.).

4. Press the Fan button, if it is desired, to run the fan continuously. A Fan “ “ icon will appear

on the display when the fan is set to operate continuously.

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