Table 1 --Physical Data (cont)

UNIT 48TJ

FURNACE SECTION

Rollout Switch Cutout Temp (F)t Burner Orifice Diameter (in....drill size)

Natural

Gas

 

 

Thermostat Heat Anticipator Setting (amps)

208/230,

575

Stage

1

460 v

 

Stage

2

 

Stage

1

 

 

Stage

2

Gas Input

 

Stage

1

 

 

Stage

2

Efficiency (Steady State) (%)

Temperature Rise Range

Manifold Pressure (in. wg)

Natural Gas

Gas Valve Quantity

Field Gas Connection Size (in.-FPT)

HIGH-PRESSURE SWITCH (psig)

Cutout

Reset (Auto)

LOW-PRESSURE SWITCH (psig)

Cutout

Reset (Auto)

FREEZE PROTECTION THERMOSTAT (F)

Opens

Closes

OUTDOOR-AIR INLET SCREENS

Quantity...Size (in.)

016D/F

O20D/F

 

024D/F

028D/F

190

190

 

190

190

0.1285-.30/0.136-.29

0.1285.-30/0.136-.29

0.1285.-30/0.136-.29

0.1285_.30/0.136...29

0.98

0.98

 

0.98

0.98

0.44

0.44

 

0.44

0.44

0.80

0.80

 

0.80

0.80

0.44

0.44

 

0.44

0.44

172,000/225,000

206,000/270,000

 

206,000/270,000

206,000/270,000

230,000/300,000

275,000/360,000

 

275,000/360,000

275,000/360,000

81

81

 

81

81

15-45/20-50

15-45/20-50

 

15-45/20-50

15-45/20-50

3.3

3.3

 

3.3

3.3

1

1

 

1

1

3/4

3/4

 

3/4

3/4

 

 

426

 

 

 

 

32O

 

 

 

 

27

 

 

 

 

44

 

 

 

3O-+5

 

 

 

45-+5

 

 

 

Cleanable

 

 

 

2...20

x 25

x 1

 

 

1...20

x 20

x 1

 

RETURN-AIR FILTERS

Throwaway**

Quantity.,.Size (in.)

4_.20

x 20

x 2

 

4...16

x 20

x 2

POWER EXHAUST

V2 Hp, 208/230-460 v Motor Direct Drive, Propeller-Fan (Factory-Wired for 460 v)

LEGEND

Bhp -- Brake Horsepower

TXV -- Thermostatic Expansion Valve

*Circuit 1 uses the lower portion of condenser coil and lower portion of evap- orator coils; and Circuit 2 uses the upper portion of both coils.

tRollout switch is manual reset.

**The 48TJ028 units requires 2-in. industrial-grade filters capable of handling face velocities of up to 625 ft/min (such as American Air Filter no. 5700 or equivalent).

NOTE: The 48TJ016-028 units have a low-pressure switch (standard) located on the suction side.

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Carrier 48TJ016-028 specifications Unit 48TJ Furnace Section, Freeze Protection Thermostat F, OUTDOOR-AIR Inlet Screens

48TJ016-028 specifications

The Carrier 48TJ016-028 is a notable model in the range of packaged rooftop units designed by Carrier, a leader in heating, ventilation, and air conditioning (HVAC) solutions. Tailored specifically for commercial applications, these units provide a blend of efficiency, durability, and reliability, making them suitable for a variety of settings, including offices, retail spaces, and industrial environments.

One of the standout features of the 48TJ series is its energy-efficient performance. Equipped with high-efficiency scroll compressors, these units offer superior cooling capacity while minimizing energy consumption. This aligns with modern sustainability goals, helping businesses reduce their carbon footprint and operational costs. Additionally, the 48TJ units comply with stringent industry standards, such as the ASHRAE 90.1 energy efficiency guidelines, ensuring that users receive a product that meets modern energy performance benchmarks.

The 48TJ016-028 units also include advanced technologies that enhance performance and user comfort. The inclusion of a sophisticated microprocessor control system facilitates precise temperature regulation, allowing for an optimal balance of cooling and heating based on real-time conditions. Moreover, the user-friendly controls make it easy for facility managers to monitor system performance and make adjustments as necessary.

Another notable characteristic of the 48TJ series is its flexible installation options. These rooftop units are designed for easy integration into existing building structures and can be installed on flat or pitched roofs. Their compact design and lightweight construction simplify the installation process while minimizing structural impacts on buildings.

Durability is paramount in the design of the 48TJ units as well. The cabinets are constructed from high-quality materials with corrosion-resistant coatings, ensuring a long lifespan even in harsh environmental conditions. The systems are also equipped with robust insulation to reduce sound levels and improve overall operating efficiency.

Furthermore, the Carrier 48TJ016-028 units offer various options for customization. Users can choose from different airflow configurations, heating options, and accessories, allowing for tailored solutions that meet specific requirements. Whether you are looking for a unit with enhanced filtration, economizer capabilities, or advanced humidity control, the 48TJ series provides the flexibility needed for diverse applications.

In summary, the Carrier 48TJ016-028 units deliver a compelling combination of energy efficiency, advanced technology, and robust construction, making them an ideal choice for commercial HVAC needs. With their versatile features and customizable options, they stand out as reliable solutions for maintaining comfortable indoor environments.