Carrier 48TJ Heating System Manual | Product Data & Nomenclature for 48TJD, 48TJE, and 48TJF Models

48TJD005-014 48TJE004-014 48TJF004-012

Single-Package Rooftop Heating/Cooling Units

User's Information Manual

NOTE TO INSTALLER

This manual should be left with the equipment owner.

FOR YOUR SAFETY

Do not store or use gasoline or other ¯ammable vapors and liquids in the vicinity of this or any other appliance.

Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual. For assistance or additional information consult a quali®ed installer, service agency, or the gas supplier.

INTAKE LOUVERS

BURNER	GAS
ACCESS	GAS
PANEL	VALVE	FLUE VENT

Fig. 1A Ð Gas Valve Location (Sizes 004-007)

FOR YOUR SAFETY

WHAT TO DO IF YOU SMELL GAS

·Do not try to light any appliance.

·Do not touch any electrical switch; do not use any phone in your building.

·Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions.

·If you cannot reach your gas supplier, call the ®re department.

Before performing recommended maintenance, be sure main power switch to unit is turned off. Electrical shock could cause personal injury.

Your rooftop combination heating/cooling unit is equipped with an automatic direct spark ignition and induced draft com- bustion blower.

Do not attempt to light by hand; personal injury may result.

TO LIGHT UNIT

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

2.Before attempting to start the gas heating section, fa- miliarize yourself with all the procedures that must be followed.

If you do not follow these instructions exactly, a ®re or explosion may result. Property damage, injury, or loss of life could occur.

Fig. 1B Ð Gas Valve Location (Sizes 008-014)

See Fig. 1A and 1B for location of gas valve. Refer to Fig. 2 while proceeding with the following steps.

Step 1 Ð Set room thermostat to the lowest temperature setting and set SYSTEM switch to HEAT or AUTO. position.

Step 2 Ð Close the manual gas valve.

Step 3 Ð Turn off the electrical supply to the unit.

Step 4 Ð Remove the burner access panel.

Step 5 Ð Move the control on the gas valve to the OFF position and wait 5 minutes.

Step 6 Ð Move control on gas valve to ON position.

Step 7 Ð Replace the burner access panel.

Manufacturer reserves the right to discontinue, or change at any time, speci®cations or designs without notice and without incurring obligations.

Book	1	4	PC 111	Catalog No. 564-991	Printed in U.S.A.	Form 48TJ-3SO	Pg 1	5-98	Replaces: 48TJ-2SO
Tab	1a	6a

48TJD005-014, 48TJE004-014, 48TJF004-012 specifications

Carrier's range of air conditioning units, specifically the models 48TJD005-014, 48TJE004-014, and 48TJF004-012, exemplify advanced engineering designed for optimal comfort and efficiency. These units are well-suited for both residential and light commercial applications, delivering effective climate control in diverse settings.

One of the main features of these models is their high energy efficiency ratings. Equipped with advanced scroll compressors, these units minimize energy consumption while providing consistent cooling. The SEER (Seasonal Energy Efficiency Ratio) ratings of these models significantly exceed industry standards, ensuring lower utility bills and a reduced environmental footprint.

The 48TJD series, in particular, is known for its compact design and flexibility in installation. This allows for easy integration into various building layouts without compromising performance. Additionally, the units are designed to operate quietly, making them perfect for environments where noise reduction is a priority, such as offices, schools, and residential areas.

The 48TJE and 48TJF models introduce innovative technologies for enhanced reliability and comfort. They are equipped with a two-stage compressor that allows for variable operation depending on cooling demand, effectively optimizing energy use and providing consistent temperature control. The inclusion of SmartConnect technology enables remote monitoring and control via smartphone applications, offering users increased convenience and comfort.

Moreover, these models feature robust corrosion-resistant materials in their construction, ensuring longevity and durability even in harsh weather conditions. The advanced air filtration systems integrated into these units improve indoor air quality by effectively removing pollutants, allergens, and odors, contributing to a healthier living space.

Additional characteristics include high-performance condensers and evaporator coils that enhance cooling capacity and efficiency. The refrigerant used is environmentally friendly, aligning with Carrier's commitment to sustainability. With sophisticated diagnostic tools, these units also simplify maintenance and troubleshooting.

In summary, Carrier's 48TJD005-014, 48TJE004-014, and 48TJF004-012 models combine energy efficiency, innovative technology, and reliability, making them excellent choices for those seeking high-performance climate control solutions. Their features not only promote comfort but also support a sustainable future through energy-conscious design.