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Aprilaire 8535 manual

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Table of contents for the manual

  • Page 1

    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[...]

  • Page 2

    OWNER’S MANUAL – T ABLE OF CONTENTS Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Getting Familiar With The Aprilaire ® Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 • T emperature Disp[...]

  • Page 3

    – 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. Please be a[...]

  • Page 4

    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) . Press to select Heat/ Emergency Heat/Cool/ Auto/Off . (Emergency Heat Models 8536 & 853[...]

  • Page 5

    – 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. T emperature Display Room temperature can be displayed in ei[...]

  • Page 6

    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. For example the four settings stored in the memory of the thermostat might b[...]

  • Page 7

    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 . • Do not place anything which can give off warm or cool air , such as candles or portable humidifiers, near the th[...]

  • Page 8

    – 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. 2. Adjusting the Cool T emperature Settings. There are two settings, the Day setting “ “ (a sun icon appears on the display when this setting is being used) and the Night [...]

  • 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 (“ E ht ” = Emergency Heat – Models 8536 and 8537 only). The heating and cooling system may be turned off by selecting the “ OFF ” mode. Do not set to the “ OFF ” mode during periods w[...]

  • Page 10

    – 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 . 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 [...]

  • Page 11

    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). 2. Change the temperature setting: OPTION 1 – Use the DECREASE button or INCREASE butto[...]

  • Page 12

    – 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. T o access the DIP switches, r[...]

  • Page 13

    – 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. If a temperature appears, the Model 8041 Remote Outdoor Sensor has been[...]

  • Page 14

    – 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. In Case Of Power Failure This thermostat does not require a bat[...]

  • Page 15

    – 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. Research Products Corporation’ s exclusive obligation under this warranty shall be to supply , without charge, a replacement for any [...]

  • Page 16

    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. For the best in indoor air quality ,[...]