Instruction/ maintenance manual of the product 8535 Aprilaire
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EL E CTR O NIC THERM O S T A T ® O w n e r’ s M an u al MODELS 8535, 8536 & 8537 Digital Heat Pump Thermostats 110-965B 7/12/01 9:12 AM Page 1.
OWNER’S MANUAL – T ABLE OF CONTENTS Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Getting Familiar With The Aprilaire ® Thermostat . . .
– 1 – IMPORT ANT : READ ALL INSTRUCTIONS THOROUGHL Y Introduction Thank you for your recent Aprilaire ® Electronic Thermostat purchase. W e 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.
Fa n Mode Day/Night Outdoor Press to raise and lower set point. Press both at the same time to switch betw een ˚F and ˚C. Press and release to view current set point. Press to display outdoor temperature (w/optional Model 8041 Remote Outdoor Sensor only) .
– 3 – 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.
the Day setting ” “ (a sun icon appears on the display) 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.
Setting Up The Aprilaire Thermostat T o 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 .
– 6 – d. Press the DA Y/NIGHT button until the “ “ icon ( Night setting) appears on the display. e. Use the DECREASE button and INCREASE button to adjust the setting.
Operating The Aprilaire Thermostat 1. Select the mode of operation by repeatedly pressing the MODE button until the desired mode appears on the display (“ E ht ” = Emergency Heat – Models 8536 and 8537 only). The heating and cooling system may be turned off by selecting the “ OFF ” mode.
– 8 – 2. Select the temperature setting to be used by pressing the DA Y/NIGHT button until the desired previously stored temperature setting (Day or Night) appears on the display .
Changing The Current T emperature 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).
– 10 – 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. 4) from the factory set OFF position to ON . The DIP switches are located inside the thermostat on the circuit board.
– 11 – Setting High And Low Balance Points (Models 8536 & 8537 only) High and low balance points can only be accessed if the Aprilaire Model 8041 Remote Outdoor Sensor has been installed. T o check if this optional accessory has been installed, press the Outdoor button.
– 12 – After accessing a balance point, it can be changed by pressing the DECREASE button or INCREASE button. This should only be done after consulting with a qualified contractor . Improperly set balance points can result in increased energy expenses and possible equipment damage.
– 13 – Limited W arranty Y our 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.
B2202210 REV . 04/01 1 10-965B P .O. BOX 1467 • MADISON, WI 53701-1467 Products For Better Indoor Air Quality ™ 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.
An important point after buying a device Aprilaire 8535 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Aprilaire 8535 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Aprilaire 8535 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Aprilaire 8535 you will learn all the available features of the product, as well as information on its operation. The information that you get Aprilaire 8535 will certainly help you make a decision on the purchase.
If you already are a holder of Aprilaire 8535, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Aprilaire 8535.
However, one of the most important roles played by the user manual is to help in solving problems with Aprilaire 8535. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Aprilaire 8535 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
