START-UP

CHECKLIST

MODEL NO.:

SERIAL NO.:

DATE:

TECHNICIAN:

PRE-START-UP

[] VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT

[] VERIFY INSTALLATION OF INDOOR FAN MOTOR ADJUSTMENT BOLT AND PLATE (48TJ020-028 ONLY)

[] VERIFY INSTALLATION OF OUTDOOR-AIR HOOD

[] VERIFY INSTALLATION OF FLUE HOOD AND WIND BAFFLE

[] VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTRUCTIONS

[] VERIFY THAT ALL ELECTRICAL CONNECTIONS AND TERMINALS ARE TIGHT

[] CHECK GAS PIPING FOR LEAKS

[] CHECK THAT FILTERS AND SCREENS ARE CLEAN AND IN PLACE

[] VERIFY THAT UNIT IS LEVEL

[] CHECK FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE, AND VERIFY SETSCREW IS TIGHT

[] VERIFY THAT FAN SHEAVES ARE ALIGNED AND BELTS ARE PROPERLY TENSIONED

[] VERIFY THAT SCROLL COMPRESSOR IS ROTATING IN THE CORRECT DIRECTION

[] VERIFY THAT CRANKCASE HEATER HAS BEEN ENERGIZED FOR 24 HOURS (SIZE 028 AND UNITS WITH

MOISTUREMISER T:'IDEHUMIDIFICATION SYSTEM

ONLY)

 

 

START-UP

 

 

 

 

 

ELECTRICAL

 

 

 

 

 

SUPPLY VOLTAGE

 

 

LI-L2

L2-L3

L3-LI

COMPRESSOR AMPS

COMPRESSOR

NO. 1

LI

L2

L3

 

COMPRESSOR

NO. 2

LI

L2

L3

SUPPLY FAN AMPS

 

 

EXHAUST FAN AMPS

 

 

TEMPERATURES

 

 

 

 

 

 

OUTDOOR-AIR

TEMPERATURE

 

 

 

F DB (Dry-Bulb)

 

 

RETURN-AIR TEMPERATURE

 

 

 

F DB

F WB (Wet-Bulb)

 

COOLING SUPPLY AIR

 

 

 

F

 

 

GAS HEAT SUPPLY AIR

 

 

 

F

 

 

PRESSURES

 

 

 

 

 

 

 

GAS INLET PRESSURE

 

 

 

IN. WG

 

 

GAS MANIFOLD PRESSURE

STAGE

NO. 1

 

IN. WG

STAGE NO. 2

IN. WG

REFRIGERANT

SUCTION

CIRCUIT

NO.

1

PSIG

CIRCUIT NO. 2

PSIG

REFRIGERANT

DISCHARGE

CIRCUIT

NO.

1

PSIG

CIRCUIT NO. 2

PSIG

[] VERIFY REFRIGERANT CHARGE USING CHARGING CHART ON PAGE 42.

GENERAL

[] ECONOMIZERMINIMUM VENT AND CHANGEOVERSETFINGS TO JOB REQUIREMENTS

Copyright 2006 Carrier Corporation

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

Book

1

14

Catalog No. 04-53480009-01

Printed in U.S.A.

Form 48TJ-22SI

Pg CL-1

3-06

Replaces: 48TJ-21Sl

Tab

1a

16a

 

 

 

 

 

 

LU

z

c_

LU

I--

rm

Z

o,

<

I-

o

LU

z

rm

LU

I-

c_

Z

o,

<

I-

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Page 56
Image 56
Carrier 48TJ016-028 Model no Serial no Date, Supply Voltage, Compressor Amps Supply FAN Amps Exhaust FAN Amps, Outdoor-Air

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.