Auto, Offon, Run. See, See this, Pages 3

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SuM: ThFLuSto°cDSS: 123

AUTO		Override
OFFON	O_	O COOLHEAT
Locked
Fanll

D Mode Indicators

Selects the operation mode of the equipment.

COOL -- indicates the air conditioning mode.

HEAT -- indicates the heat mode.

AUTO -- indicates the system will auto- matically changeover between the heat and cool modes as the

temperature varies.

OFF -- indicates the entire system is turned off.

PROGRAM ON -- indicates the stored program is enabled to

run. See page 3.

Clock with Day of the Week

Indicates the current time and day. This clock is also used to program the timer periods.

See this page.

[] Room Temperature Display

Indicates the current room temperature.

]Desired Set Temperature

Indicates desired room temperature(s). See page 3.

[-_ Override Indication

Indicates the current program is currently be- ing overridden for up to 4 hours. See

pages 3 and 5.

[] Occupied or Unoccupied Indication

Indicates the program number: Occupied 1,2, 3, or Unoccupied. See pages 3 and 4.

[] Setup Indication

Indicates the thermostat is in the program- ming mode. See page 4.

]Fan Operation Indication

Fan ,ll -- indicates constant continuous fan operation.

When Fan On Icon is not lit -- indicates the

fan will only operate when necessary to heat or to cool.

]Locked Indication

Locked appears after the right combination of

buttons are pressed, rendering the buttons inoperative. See page 5.

F_ Start/Stop Indication

Start or Stop appears when programming timer functions. See page 3.

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).

Pressing the Up and Down buttons will modify the flash- ing selection.

SET CLOCK	Press the Set Clock button
	to exit Setup screens.

To adjust the clock or Day use

t[.UUPm

\ /'

buttons.

TO adjust the

clock or Day use s!'s

		buttons.
Press	the Set Clock	button
to exit	Setup screens.	SET CLOCK O

The thermostat is preprogrammed from the factory to op- erate equipment without the need for further program- ming. To optimize the installation of this thermostat follow the instructions in the Advanced Setup section.

NOTE: The thermostat is not preprogrammed from the factory to operate heat pump systems. To control these systems, follow the steps #7the Advanced Setup section, page 4.

Page 2

53DFS250-SL specifications

The Carrier 53DFS250-SL is a cutting-edge unit designed for efficient temperature control in commercial applications. This model stands out due to its advanced technological features and robust build quality, making it well-suited for various HVAC needs. One of the key characteristics of the Carrier 53DFS250-SL is its impressive cooling and heating capacities, which are optimized for maximum performance. The unit operates efficiently, providing a cooling capacity of 53,000 BTUs, which ensures that spaces are maintained at comfortable temperatures even in extreme conditions.

One of the noteworthy features of this model is its variable-speed compressor, which allows for precise temperature management. This technology enables the unit to adjust its output based on the current demand, reducing energy consumption while maintaining comfort. Coupled with a multi-stage filtration system, the Carrier 53DFS250-SL guarantees superior air quality, removing contaminants and allergens from the indoor environment.

Energy efficiency is a significant consideration for modern HVAC systems, and the Carrier 53DFS250-SL excels in this regard. With a high SEER (Seasonal Energy Efficiency Ratio) rating, it not only lowers utility bills but also meets or exceeds regulatory standards for energy consumption. The unit is designed with environmentally friendly refrigerants that minimize its carbon footprint, aligning with today's sustainability goals.

The Carrier 53DFS250-SL also incorporates advanced control features, including a programmable thermostat option that allows users to optimize performance based on their schedules. This feature enhances user convenience while ensuring energy savings. Additionally, the unit supports connectivity options for smart home integration, making it adaptable to modern living environments.

Durability is another hallmark of the Carrier brand, and the 53DFS250-SL is no exception. Constructed from high-quality materials, the unit is designed to withstand various weather conditions, making it a reliable solution for long-term use. Its compact design allows for flexible installation options, fitting seamlessly into a variety of architectural layouts.

In summary, the Carrier 53DFS250-SL is a powerful, efficient, and versatile HVAC solution. With its variable-speed technology, exceptional energy efficiency, and robust build quality, it is the perfect choice for those seeking reliable climate control in commercial settings. Whether cooling or heating, this unit demonstrates superior performance that can adapt to the ever-changing demands of indoor environments.