Carrier 53DFS250-SL User Manual

Owner's Manual
PROGRAMMABLE DIGITAL THERMOSTAT
53DFS250-SL
DISPLAY
QUICK START Set the clock and go
BASIC OPERATION
PROGRAMMING Occupied and
Unoccupied Periods
ADVANCED SETUP
ABOUT ADVANCED FEATURES
AND OPERATION
WARRANTY
2
2
3
3
4
5
7
• 7-Day Programmable
• 3 Occupied Modes, 1 Unoccupied Mode
• Auto Changeover
• Large, Easy To Read Display
• Thermoglow TM Backlight
• Remote Sensor Ready
• Dry Contact Equipped
• Energy Saving Smart Fan
• Fan Purge, IAQ Feature
• Meets California Title 24
IMPORTANT: Follow Installation Instructions
before proceeding,
CAUTION: SETTHERMOSTATTO MODE "OFF"
PRIOR TO CHANGING SETTINGSIN SETUPOR
RESTORING FACTORY DEFAULTS,
q
% o
Backlit LCD Display
Warmer or + Button
Cooler or - Button
Override Button
Heat or Cool Indicator
Red = Heat, Green = Cool
O
o o_0
MODE FAN HOLIDAY PROGRAM SET CLOCK
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 1 11-04 Replaces: New

Carrier 53DFS250-SL Specifications

General

Brand	Carrier
Model	53DFS250-SL
Category	Thermostat
Language	English

Summary

Display Indicators

Mode Indicators

Explains the meaning of various mode icons such as HEAT, COOL, AUTO, and OFF.

Clock and Day Display

Desired Set Temperature

Quick Start: Set the Clock and Go

Basic Operation

Select Mode

Details how to select HEAT, COOL, AUTO, Program On, or OFF operational modes.

Select Desired Temperature

Explains how to adjust the desired set point temperature for heating or cooling.

Override Function

Describes how to temporarily override programmed settings for comfort.

Programming Occupied and Unoccupied Periods

Set Max Occupied Periods

Set Occupied Cooling Setpoint

Adjust the desired cooling temperature for occupied periods.

Set Occupied Heating Setpoint

Adjust the desired heating temperature for occupied periods.

Set Unoccupied Cooling Setpoint

Adjust the desired cooling temperature for unoccupied periods.

Set Unoccupied Heating Setpoint

Adjust the desired heating temperature for unoccupied periods.

Set Occupied Start Time

Define the start time for the occupied period.

Set Occupied Stop Time

Define the stop time for the occupied period.

Advanced Setup

Select Operating Mode

Adjust Deadband Setting

Set Minimum Temperature Difference

Select Cycles Per Hour Limit

Select Temperature Units

Set Fan Purge Timer

Keypad Lockout

Dry Contact Switch Operation

Configure external device control for forcing thermostat into Occupied 1.

About Advanced Features and Operation

Holiday Mode

Dual Set Point Behavior

Remote Sensors

Factory Defaults Reset

Instructions on how to restore all settings to factory defaults.