ROUTINE MAINTENANCE

All routine maintenance should be handled by skilled, ex- perienced personnel. Your dealer can help you establish a standard procedure.

For your safety, keep the unit area clear and free of com- bustible materials, gasoline, and other ¯ammable liquids and vapors.

To assure proper functioning of the unit, ¯ow of combus- tion and ventilating air must not be obstructed from reaching the unit. Clearance of at least 30 in. is required on all sides except the duct side.

MAINTENANCE AND CARE FOR THE

EQUIPMENT OWNER

Before proceeding with those things you might want to maintain yourself, please carefully consider the following:

1.TURN OFF GAS SUPPLY AND ELECTRICAL POWER TO YOUR UNIT BEFORE SERVICING OR PERFORMING MAINTENANCE.

2.Do not turn off electrical power to this unit without ®rst turning off the gas supply.

3.When removing access panels or performing main- tenance functions inside your unit, be aware of sharp sheet metal parts and screws. Although special care is taken to reduce sharp edges to a minimum, be ex- tremely careful when handling parts or reaching into the unit.

Air Filters Ð Air ®lter(s) should be checked at least ev- ery 3 or 4 weeks and changed or cleaned whenever it be- comes dirty. Dirty ®lters produce excessive stress on the blower motor and can cause the motor to overheat and shut down. Table 1 indicates the correct ®lter size for your unit. Refer to Fig. 5 to access the ®lter(s).

To replace or inspect ®lter(s) (or accessory ®lter rack when supplied):

1.Remove the ®lter access panel using a 5¤16-in. nut driver.

2.Remove the ®lter(s) by pulling the ®lter(s) out of the unit. If the ®lter(s) is dirty, clean or replace with new one.

When installing the new ®lter(s), note the direction of the air¯ow arrows on the ®lter frame.

If you have difficulty in locating your air ®lter(s), or if you have questions concerning proper ®lter maintenance, con- tact your dealer for instructions. When replacing ®lters, al- ways use the same size and type of ®lter that was supplied originally by the installer.

Table 1 Ð Indoor-Air Filter Data

UNIT SIZE

 

018-024

 

030-036

042

 

048-060

48SS

 

 

 

 

 

 

 

 

 

 

 

 

Filter Size

 

20 x 20

20 x 24

 

24 x 24

 

24 x 30

 

 

 

 

 

 

 

 

 

 

UNIT SIZE

 

024-036

 

042-060

 

 

 

 

48SX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Filter Size

 

24 x 24

 

24 x 30

 

 

Never operate your unit without ®lters in place. Failure to heed this warning may result in damage to the blower motor and/or compressor. An accumulation of dust and lint on internal parts of your unit can cause loss of ef- ®ciency and, in some cases, ®re.

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Carrier 48SX specifications Routine Maintenance, Maintenance and Care for Equipment Owner

48SX specifications

The Carrier 48SX is a cutting-edge rooftop HVAC unit designed for commercial use, delivering superior performance, energy efficiency, and reliability. This system is part of Carrier's extensive lineup of climate control solutions, engineered to cater to a variety of commercial applications including offices, retail spaces, and industrial environments.

One of the standout features of the Carrier 48SX is its advanced efficiency ratings. With a high Seasonal Energy Efficiency Ratio (SEER) and Energy Efficiency Ratio (EER), this model significantly reduces energy consumption, resulting in lower operational costs. Its optimized design not only meets but often exceeds industry efficiency standards, making it an eco-friendly choice for environmentally-conscious businesses.

The 48SX utilizes advanced scroll compressors that enhance reliability and durability while providing consistent temperature control. These compressors are known for their quiet operation, ensuring minimal disruption in commercial settings. Additionally, the unit incorporates an innovative economizer option which takes advantage of outdoor air to reduce cooling loads, further improving energy efficiency during moderate weather conditions.

Built for versatility, the Carrier 48SX can accommodate various configurations and options tailored to specific heating and cooling needs. It comes with multiple airflow options allowing for flexible installation and adaptability to different building layouts. This ensures proper air distribution across spaces, enhancing overall comfort for occupants.

In terms of control technologies, the Carrier 48SX features an integrated microprocessor control system. This advanced control technology allows for seamless operation diagnostics, enhancing serviceability and reducing downtime. The user-friendly interface facilitates easy adjustments to settings, improving overall user experience and operational flexibility.

The construction of the Carrier 48SX emphasizes durability and resilience. Its robust casing is designed to endure harsh weather conditions, ensuring longevity and reliable performance year after year. Additionally, the unit can operate efficiently in a wide range of temperatures, making it suitable for diverse climates.

In summary, the Carrier 48SX is an exceptional rooftop HVAC unit that combines efficiency, reliability, and advanced technology. Its features such as high-efficiency compressors, versatile configurations, advanced control systems, and durable construction make it a preferred choice for businesses looking to optimize their heating and cooling solutions while minimizing costs and environmental impact. Whether for new installations or upgrades, the Carrier 48SX stands out as a leader in commercial HVAC technology.