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 selection.)

If different heating and/or cooling temperature set points are desired Monday through Friday at different times of the day, two occupied periods must be programmed. To adjust set points and times for the two occupied periods:

If the space to be controlled should have a designated temperature from 7:00 a.m. to 5:00 p.m. Monday through Friday and for the remainder of the day have an alternate or setback temperature set point set to stop at 5:00 p.m., program the Occupied 2 mode at 12:00 a.m. to

12:00 a.m. at the alternate temperature set point.

,//" ,\

Select the day for

Occupied 1.

(Mo - Su)

Adjust the start time

for occupied 1.

Adjust the stop time

for occupied 1.

i

I • t=l M

_ • _1 _l Pm i

NOTE: If one occupied period starts and stops within another occupied period the lower occupied number has priority.

If additional setback is desired for Saturday and Sunday, program Occupied 1 from 12:00 a.m. to 12:00 a.m. for both Saturday and Sunday at the desired temperature.

Pross the Mode button. While holding the Mode button, press the Up button for 2 seconds to enter time period

MODE O programming.

 

Select

the maximum number

 

of occupied periods to be

(_

used

on any

one day.

 

 

(1,2 or

3)

On

Select Occupied 1 to run

run this day (Off).

on this day (On), or not to

Off

Select Yes or No to copy the previous day's program to this day.

NO

ON

The copy command becomes avail- able after the maximum number of

occupied periods are programmed in a day. This example uses 1 as the maximum occupied periods ever pro- grammed in one day.

_ I_ I I &!

Tu t'N

LU ou

_)

Adjust

the

cooling

 

 

 

set point for occupied 1.

 

_j)

 

 

(35

to

99 F)

 

 

 

Adjust

the

heating

 

 

 

 

 

 

 

 

 

(x(

(_

set

point foroccupied

1.

HEAT

 

 

 

(35

to

99 F)

 

12

 

 

 

 

 

 

 

 

Adjust

the

cooling

 

_f,_l

 

set

point for

unoccupied

 

COOL

(_

pedods.

(35

to

99 F)

 

 

 

 

 

 

 

 

Adjust

the

heating

 

 

(_

set

point for

unoccupied

HEAT

 

periods.

 

 

 

_,

 

 

 

(35

to

99 F)

 

_

NOTE: If no Unoccupied Mode witl be used, press the Mode button and pro- ceed to the next step.

Selecting Yes, then pressing Mode will copy the previous day's program and then will ask the same copy question again. If yes is selected each time, this routine will repeat until Saturday is copied to Sunday. After Saturday is copied to Sunday, the copy command is unavailable.

Select the day

Tu

for Occupied

t.

(Tu - Mo)

 

2i .uu

Adiust the start time for occupied 1.

• U U Pm

I

Adjust the stop time for occupied I.

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Carrier 53DFS250-FS owner manual Important i Before you Begin, 2i .uu, Off
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53DFS250-FS specifications

The Carrier 53DFS250-FS is a distinguished addition to Carrier’s lineup of commercial refrigeration units. This model is specifically designed to provide efficient and reliable cooling for various applications, making it a go-to choice for food service operators, grocery stores, and convenience stores. The 53DFS250-FS is known for its robust construction and advanced technologies that enhance its performance and energy efficiency.

One of the hallmark features of the Carrier 53DFS250-FS is its advanced refrigeration system. It utilizes a state-of-the-art compressor that ensures optimal cooling performance while minimizing energy consumption. The unit is equipped with a variable speed drive that adjusts the compressor's speed based on the cooling demand, thus enhancing energy savings and reducing operational costs.

The 53DFS250-FS also boasts an impressive capacity, making it suitable for a wide range of applications. With a cooling capacity of 250 cubic feet, this unit is designed to accommodate a significant volume of products, keeping them at safe and optimal temperatures. The refrigeration system is supported by an efficient circulating fan that evenly distributes cool air, ensuring consistent temperature across all shelves.

Durability is another critical characteristic of the Carrier 53DFS250-FS. Constructed with high-quality materials, the unit is designed to withstand the rigors of daily use in busy commercial environments. Its self-closing doors and heavy-duty hinges provide ease of access while maintaining efficiency. The interior is designed with adjustable shelving, allowing businesses to maximize their storage capabilities based on their specific needs.

In terms of technology, the Carrier 53DFS250-FS features intelligent temperature controls that provide accurate and responsive cooling management. This system allows users to set and monitor temperature levels with precision, ensuring that food items are stored under optimal conditions. Additionally, the unit is equipped with advanced diagnostics that help in monitoring performance and identifying potential issues before they escalate into significant problems.

The 53DFS250-FS is also designed with environmental sustainability in mind. It uses eco-friendly refrigerants that comply with the latest environmental regulations, ensuring that businesses can operate without compromising their commitment to sustainability.

Overall, the Carrier 53DFS250-FS is a reliable and efficient refrigeration solution that caters to the needs of various commercial applications. With its powerful performance, durability, and advanced technology, it remains a preferred choice for operators looking to enhance their refrigeration capabilities while maintaining cost-effectiveness and environmental responsibility.
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