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110-964B 7/12/01 9:14 AM Page 1
®
ELECTRONIC THERMOSTAT
Owner’s Manual
MODELS
8533, 8534 & 8538
Digital Heat/Cool Thermostats
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110-964B 7/12/01 9:14 AM Page 2 OWNER’S MANUAL – TABLE OF CONTENTS Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ® Getting Familiar With The Aprilaire Thermostat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 • Temperature Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
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110-964B 7/12/01 9:14 AM Page 3 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,
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110-964B 7/12/01 9:14 AM Page 4 Aprilaire Digital Heat/Cool Thermostat Temperature ˚F or ˚C. Room temp. normally displayed. Press Outdoor button to Heat and Cool Mode display outdoor temp. icons. Both displayed (Model 8041 Remote during Auto Mode. Outdoor Sensor Flame flickers during required). heat call and Snowflake flashes during cool call. Set-point icon displays Displays mode when the active set point changing (Heat, Cool, (full sun = Day set Mode Outdoor point, partial
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110-964B 7/12/01 9:14 AM Page 5 Getting Familiar with the Aprilaire Thermostat (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 t
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110-964B 7/12/01 9:14 AM Page 6 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 set
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110-964B 7/12/01 9:14 AM Page 7 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 app
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110-964B 7/12/01 9:14 AM Page 8 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.
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110-964B 7/12/01 9:14 AM Page 9 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 “HEA
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110-964B 7/12/01 9:14 AM Page 10 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 norma
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110-964B 7/12/01 9:14 AM Page 11 Changing The Current Temperature Setting 1. Press and release either the DECREASE button or INCREASE button to see the current temperature setting. The setting, a Thermometer icon and a Double Arrowhead icon will appear (see Figures 2 and 3 on pages 5 and 6). 2. Change the temperature setting: OPTION 1 – Use the DECREASE button or INCREASE button. Press and hold the DECREASE button or INCREASE button to change
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110-964B 7/12/01 9:14 AM Page 12 Optional Feature – Locking The Keypad If tampering with the thermostat is expected and unwanted, the keypad can be locked by changing the position of the Keypad Lock DIP switch (switch no. 2) from the factory set OFF position to ON. The DIP switches are located inside the thermostat on the circuit board. To access the DIP switches, refer to the Installation Instructions that came with the thermostat, or consult your contractor. In the locked position, only the
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110-964B 7/12/01 9:14 AM Page 13 In Case Of Power Failure This thermostat does not require a battery. If the power goes out, the display is blank. During the period that the power is off, the heating/cooling system will not operate. When the power is restored, the thermostat will default to the Day setting and the current mode of operation at the time of the power outage. This thermostat is equipped with a continuous memory feature which does not require any battery. The thermostat will ne
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110-964B 7/12/01 9:14 AM Page 14 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 installatio
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110-964B 7/12/01 9:14 AM Page 15 Notes – 13 –
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110-964B 7/12/01 9:14 AM Page 16 ® 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 Cur
