Summary of the content on the page No. 1
Owner's Manual
PROGRAMMABLE DIGITAL THERMOSTAT
53DFS250-SL
• 7-Day Programmable
• 3 Occupied Modes, 1 Unoccupied Mode
DISPLAY 2
• Auto Changeover
2
QUICK START Set the clock and go
• Large, Easy To Read Display
BASIC OPERATION
3
• Thermoglow TM Backlight
PROGRAMMING Occupied and
• Remote Sensor Ready
3
Unoccupied Periods
• Dry Contact Equipped
ADVANCED SETUP 4
• Energy Saving Smart Fan
ABOUT ADVANCED FEATURES
• Fan Purge, IAQ Feature
AND OPERATION
5
• Meets California Title 24
WARRANTY
7
before
Summary of the content on the page No. 2
E_ll!1r_ [,...]!_iq[,.1,tJl/i_J_t;_._l_i/l,l[cl,t] During Setup and Programming: Pressing the Mode button selects different flashing items (represented in black). ,,..,:00 A oLo;: Pressing the Up and Down buttons will modify the flash- SuM: ThF S: LuSto°cDS 123 ing selection. Override AUTO Press the Set Clock button O_ O COOL HEAT SET CLOCK to exit Setup screens. OFFON Locked Fanll| To adjust the clock or Day use t[.UUPm \ /' D Mode Indicators Selects the operation mode of the equipment. butto
Summary of the content on the page No. 3
Select Mode Press the Program button to enter PROGRAM time period programming, The HEAT setting indicates the temperature the room has to reach before the unit will turn on to heat the room. T Select the maximum number of occupied periods to be +U £g Typically 1. ) used on any one day. (1,2 or 3) The COOL setting indicates the temperature the room has to reach before the unit will turn on to cool the room. _ © COOL _) Adjust the cooling COOL set point for occupied 1. +U _J) (35 to 99 F) AUTO wil
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to midnight and from midnight to the stop time on the same day. For example: 9:00pm start, 8:00am stop, on Monday. In this example the program will The copy command becomes available after the maximum number of occupied run from 12:00am Monday to 8:00am Monday and periods are programmed in a day. This again from 9:00pm Monday to 12:00pm Monday. example uses 1 as the maximum occupied periods ever programmed in one day. Yes • The Unoccupied settings take effect at all times when: (1) the program i
Summary of the content on the page No. 5
• MINIMUM HEAT/COOL SET POINT DIFFERENCE -- The Heat and Cool set point temperature will not be allowed to come any closer to each other than the value set in Advanced Setup Step 5, on page 4. U _C Select thermostat This minimum difference is enforced during Auto operation in degrees changeover and Program On operation. Fahrenheit or Celsius. • ENERGY SAVING SMART FAN -- If Fan On is F selected, the fan will run continuously at all times, except in Off, and will only run if there is a heating _J
Summary of the content on the page No. 6
amount that they were adjusted, prior to entering Auto. HOLIDAY MODE -- This feature forces the thermo- For example: If the Cool set point was set to 80 stat into Unoccupied for a preset duration, up to while in the Cool mode and the Heat set point was 99 days, The Holiday setup display is entered as adjusted to 70 while in the Heat mode, upon enter- follows: ing the Auto mode the Heat and Cool set points would be 80 and 70. Both set point temperatures would then move up and down together, (in t
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|YlY_l li_1 iTIi, 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 remanufactured part, at the manufacturer's sole option, to replace any defective part will be provided without charge for the part itself; PROVIDED the defective part is returned to the distributor through a qu
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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. 535-329 Printed in U.S.A. Form OM53-4 Pg 8 11-04 Replaces: New
