UNIT START-UP CHECKLIST

I. PRELIMINARY INFORMATION:

MODEL NO.:

 

 

SERIAL NO: _____________________________________

DATE:

______________

TECHNICIAN: ___________________________________

 

 

 

 

BUILDING LOCATION:____________________________

II. PRE-START-UP (insert check mark in box as each item is completed):

jVERIFY THAT ALL PACKAGING MATERIALS HAVE BEEN REMOVED FROM UNIT

jVERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS j VERIFY THAT FLUE HOOD IS INSTALLED

j CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS

j CHECK TO ENSURE NO WIRES ARE TOUCHING REFRIGERANT TUBING OR SHARP EDGES j CHECK GAS PIPING FOR LEAKS

j CHECK THAT RETURN-AIR FILTER IS CLEAN AND IN PLACE j VERIFY THAT UNIT INSTALLATION IS LEVEL

j CHECK FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND VERIFY SETSCREW IS TIGHT j VERIFY PULLEY ALIGNMENT AND BELT TENSION ARE CORRECT

III. START-UP

ELECTRICAL

SUPPLY VOLTAGE

L1-L2

 

L2-L3

 

L3-L1

COMPRESSOR AMPS

L1

 

L2

 

L2

 

 

INDOOR FAN AMPS

L1

 

L2

 

L2

 

 

 

 

 

 

 

 

TEMPERATURES

OUTDOOR-AIR TEMPERATURE

 

DB

 

WB

RETURN-AIR TEMPERATURE

 

DB

 

WB

 

 

COOLING SUPPLY AIR

 

DB

 

WB

 

 

GAS HEAT SUPPLY AIR

 

DB

 

 

 

 

 

 

 

 

 

 

PRESSURES

GAS INLET PRESSURE

 

IN. WG

 

 

GAS MANIFOLD PRESSURE

 

IN. WG (LOW FIRE)

 

IN. WG (HI FIRE)

 

 

REFRIGERANT SUCTION

 

PSIG

 

TEMP _F

 

 

REFRIGERANT DISCHARGE

 

PSIG

 

TEMP _F

 

 

 

 

 

 

 

jVERIFY REFRIGERANT CHARGE USING CHARGING CHARTS

jVERIFY THAT 3-PHASE SCROLL COMPRESSOR IS ROTATING IN CORRECT DIRECTION

48TC

Copyright 2008 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231

Printed in U.S.A.

Edition Date: 08/08

Catalog No: 48TC---2SM

 

 

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

Replaces: 48TC--- 1SM

107

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Carrier 48TCA04---A12 appendix Unit START-UP Checklist, Preliminary Information

48TCA04---A12 specifications

The Carrier 48TCA04---A12 is a high-efficiency rooftop air conditioning unit designed for commercial and industrial applications. Known for its reliability and performance, this model features advanced technologies that cater to diverse climate control needs.

One of the standout features of the Carrier 48TCA04---A12 is its excellent energy efficiency, which adheres to the stringent standards set by the U.S. Environmental Protection Agency. The unit utilizes a highly efficient scroll compressor combined with state-of-the-art heat exchanger technology, allowing it to operate with minimal energy consumption while providing powerful cooling capabilities.

The unit comes equipped with a robust and durable design, built to withstand various environmental conditions. Its weather-resistant cabinet is constructed from high-quality materials, ensuring long-lasting performance even in harsh climates. Additionally, the unit features a galvanized steel structure with a powder-coated finish, further enhancing its resistance to corrosion and wear.

In terms of technologies, the Carrier 48TCA04---A12 incorporates advanced controls that promote optimal performance. The unit supports Carrier's smart connectivity options, facilitating remote monitoring and adjustments via smart devices. This feature ensures convenient energy management and allows maintenance teams to access performance data, leading to proactive service interventions.

Another important characteristic of this unit is its quiet operation. The design includes sound-reducing insulation and a well-engineered airflow system, minimizing noise levels to create a more comfortable indoor environment. This is particularly important for commercial spaces such as offices and retail environments, where a tranquil atmosphere is critical for customer satisfaction and productivity.

The Carrier 48TCA04---A12 also offers diverse application flexibility, making it suitable for various locations, from small retail stores to large warehouses. With several tonnage options available, users can select a model that perfectly aligns with their specific cooling needs. Additionally, the unit can be easily integrated with existing HVAC systems, providing a seamless solution for upgrading or retrofitting older installations.

To sum up, the Carrier 48TCA04---A12 rooftop air conditioning unit stands out due to its exceptional energy efficiency, durable construction, advanced technology, and quiet operation, making it a reliable choice for commercial and industrial cooling solutions. Its flexibility and smart technology integrations ensure that it meets a wide range of climate control requirements effectively.