Aprilaire 8533 User Manual

O wner’s Manu al

MODELS

8533, 8534 & 8538

Digital Heat/Cool Thermostats

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ELE CTR ONIC THERMO S T A T

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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Figure 1 - Display and Button Description

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Digital Heat/Cool Thermostat

Temperature ˚F or ˚C.

Room temp. normally

displayed. Press

Outdoor button to

display outdoor temp.

(Model 8041 Remote

Outdoor Sensor

required).

Set-point icon displays

the active set point

(full sun = Day set

point, partial moon

= Night set point).

Press to select

Heat/Cool/Auto/Off.

(Auto for Models 8534

& 8538 only)

Press for continuous

fan. Press again to resume to auto fan.

Fan icon displays during

continuous fan only.

Mode

Fan

Aprilaire

Heat and Cool Mode icons. Both displayed during Auto Mode. Flame flickers during heat call and Snowflake flashes during cool call.

Displays mode when

Outdoor

Day/Night

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.

changing (Heat, Cool, Off, and Auto).

(Auto for Models 8534 & 8538 only)

Press to display outdoor temperature (w/optional Model 8041 Remote Outdoor Sensor only).

Press to change set point to either the Day or Night preset value.

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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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+ 11 hidden pages