Carrier 48TJ Air Conditioners - Models Overview and Specifications

Page 6

Table 1 Ð Physical Data (cont)

UNIT SIZE 48TJ

 

008D/E/F

009D/E/F

012D/E/F

014D/E

FURNACE SECTION

 

 

 

 

 

Rollout Switch Cutout

 

 

 

 

 

Temp (F)

 

195

195

195

195

Burner Ori®ce Diameter

 

 

 

 

 

 

(in. ...drill size)

 

 

 

 

 

 

Natural Gas

Std

.120...31

.120...31

.120...31/.120...31/.129...30

.120...31/.129...30

 

Liquid Propane

Alt

.096...41

.096...41

.096...41/.096...41/.102...38

.096...41/.102...38

Pilot Ori®ce Diameter

 

 

 

 

 

(Quantity) in. ...drill size

 

 

 

 

 

 

Natural Gas

Std

Ð

Ð

Ð

Ð

 

Liquid Propane

Alt

Ð

Ð

Ð

Ð

Thermostat Heat Anticipator

 

 

 

 

 

Setting (amps)

 

 

 

 

 

 

208/230 v Stage 1

 

.14

.14

.14

.14

 

Stage 2

 

.20

.20

.20

.20

 

460 v Stage 1

 

.14

.14

.14

.14

 

Stage 2

 

.20

.20

.20

.20

Gas Input (Btuh) Stage 1

 

125,000/120,000/180,000

125,000/120,000/180,000

120,000/180,000/200,000

180,000/200,000

 

Stage 2

 

Ð/180,000/224,000

Ð/180,000/224,000

180,000/224,000/250,000

224,000/250,000

Efficiency (Steady

 

 

 

 

 

 

State) (%)

 

80

80

80

80

Temperature Rise Range

 

20-50/35-65/45-75

20-50/35-65/45-75

35-65/35-65/40-70

35-65/40-70

Manifold Pressure (in. wg)

 

 

 

 

 

 

Natural Gas

Std

3.5

3.5

3.5

3.5

 

Liquid Propane

Alt

3.5

3.5

3.5

3.5

Gas Valve Quantity

 

1

1

1

1

Field Gas Connection

 

 

 

 

 

 

Size (in.)

 

1¤2/3¤4/3¤4

1¤2/3¤4/3¤4

3¤4/3¤4/3¤4

3¤4/3¤4

HIGH-PRESSURE SWITCH (psig)²

 

 

 

 

Standard Compressor

 

 

450 ± 50

 

500 ± 50

Internal Relief (Differential)

 

 

 

 

 

Cutout

 

 

428

 

428

Reset (Auto.)

 

 

320

 

320

LOW-PRESSURE SWITCH (psig)²

 

 

 

 

Cutout

 

 

7 ± 3

 

Reset (Auto.)

 

 

22 ± 7

 

FREEZE PROTECTION

 

 

 

 

 

THERMOSTAT (F)²

 

 

 

 

 

Opens

 

 

30 ± 5

 

Closes

 

 

45 ± 5

 

OUTDOOR-AIR INLET SCREENS

 

 

Cleanable

 

Quantity...Size (in.)

 

 

1...20 x 25 x 1

 

 

 

 

 

1...16 x 25 x 1

 

RETURN-AIR FILTERS

 

 

Throwaway

 

Quantity...Size (in.)

 

4...16 x 20 x 2

4...16 x 20 x 2

4...20 x 20 x 2

4...20 x 20 x 2

 

LEGEND

 

 

*Evaporator coil ®n material/condenser coil ®n material.

Al

Ð Aluminum

 

 

²Requires an optional or accessory controls kit.

 

 

 

 

 

 

Bhp

Ð Brake Horsepower

 

 

NOTE: The 48TJ008-014 units have a loss-of-charge/low-pressure

Cu

Ð Copper

 

 

switch (accessory) located in the liquid line.

 

6

Image 6
Contents Installation, Start-Up Service Instructions Install External Trap for Condensate Horizontal Conversion PanelsUnit Size Power Control Connector``D ALT Drain Hole Accessory GAS Connection PackageUnit Leveling Tolerances Physical Data OUTDOOR-AIR Inlet Screens Furnace SectionFreeze Protection Thermostat F² RETURN-AIR FiltersBase Unit Dimensions Make Electrical Connections Flue Hood DetailsElectrical Data Comps IFCAdjust Factory-Installed Options Typical UnitPosition Setting Durablade Economizer Installed in Unit Durablade Economizer Damper Minimum Position Setting Parablade Economizer Installed in Unit Enthalpy Settings for Parablade Economizer Unit Motor Pulley Turns Open Evaporator-Fan Motor Efficiency Economizer Static Pressure Drop in. wgMotor Data Fan Performance, 48TJ008 Ð Vertical Discharge Units Fan Performance, 48TJ009 Ð Vertical Discharge UnitsAirflow Fan Performance, 48TJ012 Ð Vertical Discharge Units Fan Performance, 48TJ014 Ð Vertical Discharge UnitsFan Performance, 48TJ008 Ð Horizontal Discharge Units Fan Performance, 48TJ009 Ð Horizontal Discharge UnitsFan Performance, 48TJ012 Ð Horizontal Discharge Units Fan Performance, 48TJ014 Ð Horizontal Discharge UnitsSTART-UP HeatingAltitude Compensation Nominal InputElevation Cleaning Condenser Coil LubricationCondenser-Fan Adjustment Fig 48TJ Unit VoltageFAN Height ``A Cooling Charging Chart 48TJ009 OFF LED Error Code DescriptionLED Indication Error Code Description Flash²Burner Section Details Spark Gap Adjustment LED Error Code Service Analysis Problem Cause RemedyLED OFF Durablade Economizer Troubleshooting Problem Cause RemedyParablade Economizer Service Troubleshooting Cooling Service Troubleshooting Heating Service Troubleshooting Typical Wiring Schematic and Component Arrangement Page Copyright 1996 Carrier Corporation Page Remove and Store in Job File Preliminary Information

48TJF008-012, 48TJD008-014, 48TJE008-014 specifications

Carrier's 48TJD008-014, 48TJE008-014, and 48TJF008-012 series are high-performance packaged rooftop units engineered to meet the heating, ventilation, and air conditioning (HVAC) needs of commercial and industrial applications. These units are renowned for their reliability, energy efficiency, and advanced technologies, making them a popular choice among facility managers and HVAC professionals.

One of the standout features of these Carrier units is their robust construction. Designed to withstand diverse environmental conditions, these units come with durable cabinets that are resistant to corrosion and UV degradation. This durability extends the product lifespan and reduces maintenance needs, providing long-term savings for facility operators.

The series includes models ranging from 8 to 14 tons, catering to a variety of space requirements. Each unit is equipped with a high-efficiency scroll compressor that enhances performance while minimizing energy consumption. This compressor technology guarantees quieter operation, reduced vibrations, and exceptional reliability, which are critical factors in commercial settings.

Energy efficiency is a hallmark of the 48TJD, 48TJE, and 48TJF series. These units come with high Seasonal Energy Efficiency Ratios (SEER) and Energy Efficiency Ratios (EER), which result in lower energy bills and a reduced carbon footprint. The incorporation of advanced digital controls allows for precise temperature management and integration with building management systems, ensuring optimal performance throughout the year.

In terms of comfort features, the Carrier series utilizes variable-speed technology, enabling the fan to adjust its speed according to the load requirements. This results in more consistent temperature control and enhanced indoor air quality. The units also include options for enhanced filtration systems, which can accommodate various filter types, ensuring the removal of airborne particles and allergens.

Installation is simplified with these packaged rooftop units. Their compact design fits well on rooftops or in limited spaces, and they come with factory-installed components, which streamline the setup process. Additionally, the units feature easy access panels for maintenance, allowing technicians to conduct service with minimal disruption to operations.

Finally, Carrier's dedication to innovation is evident in the incorporation of smart technologies within these units. Integrated diagnostics and monitoring systems provide real-time performance data, enabling proactive maintenance and reducing the likelihood of unexpected breakdowns.

In summary, Carrier's 48TJD008-014, 48TJE008-014, and 48TJF008-012 rooftop units are engineered for efficiency, reliability, and comfort. With their durable construction, advanced compressor technology, energy efficiency, comfort features, and ease of installation, these units are ideal for meeting the demanding HVAC needs of commercial spaces.