Carrier PROGRAMMABLE DIGITAL THERMOSTAT 53DFS250-FS manual

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Table of contents for the manual

  • Page 1

    Owner's Manual PROGRAMMABLE DIGITAL THERMOSTAT 53DFS250-FS © © [] [] -q Liquid Crystal Display with Thermoglew TM Backlight [_ Up/Down Buttons []Mode Button F4] Override Button Fq Heat or Cool Indicator Heat = Red, Cool = Green [_Ternperature Sensor Bubble I1€1,'1_ Bill [_ FRONT PANEL 1 DISPLAY 1 QUICK START Set the clock and go 2 BAS[...]

  • Page 2

    F_I Setup Indication indicates the thermostat is in the programming mode. See page 4. F'81Fan Operation -- Speed Indication 3 Fan -- indicates constant continuous fan operation. 3 speed indicators appear as: 1 bar m = low speed 2 bars ml = medium speed 3 bars roll = high speed When Fan is not lit -- indicates the fan is in Auto mode. The fan w[...]

  • Page 3

    Important i Before you Begin When using unoccupied modes, Auto fan speed must be selected. Manual fan speed should not be used for unoc- cupied operation. Auto Fan speed must be used to pre- vent the system from entering the coil freeze protection cycle or in heating, the high-pressure protection cycle. (See Advanced Setup section for fan speed sel[...]

  • Page 4

    On Select Occupied 1 to run on this day (On), or not to _ _,:i_i i run this day (Off). ON Off Yes hl¢l IlL! We Select Yes or No to copy the previous day's I _ 1_ / program to this day. LI.,I o,J No I ii Selecting Yes, then pressing mode will copy the previous day's program and then will ask the same copy question again If yes is setected[...]

  • Page 5

    L'Yl _ I [,."15"1!1_ (_ Adjust the minimum allowable cool set point when security is in effect. (Step 10 only appears if Step 8 is not 0.) (35 to 99 F) LU _) C Select thermostat operation in degrees j) Fahrenheit or Centigrade. F F On (_ Select the display back- light always On, or Off after 8 seconds. off ON _'nR U,UU (_ Adjust[...]

  • Page 6

    HOLIDAY MODE -- This feature forces the thermo- stat into Unoccupied for a preset duration, up to 99 days. The Holiday setup display is entered as follows: MODE O 4, A ?Y Press the Mode button. While holding Mode, press the Up button for 2 seconds to enter the time period programming setup The first step on the display prompts for maximum number of[...]

  • Page 7

    |YlY_l li _1 iTI Lv One-Year Warranty -- This Product is warranted to be free from defects in material and workmanship. If it appears within one year from the date of original installation, whether or not actual use begins on that date, that the product does not meet this warranty, a new or remanufnctured part, at the manuf_cturer's sole optio[...]

  • Page 8

    Copyright 2004 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 535-328 Printed in USA. Form OM53-3 Pg 8 11-04 Replaces: New[...]