TESTING

YES/NO

DATE TO BE

 

 

COMPLETED

1.The cooling tower fan has been checked for blade pitch and proper operation.

2.The chilled water and condenser water lines have been:

a.Filled

b.Tested

c.Flushed

d.Vented

e.Strainers cleaned

3.The chilled water and condenser water pumps have been checked for proper rotation and flow.

4.The following cooling load will be available for start-up:

a.25%

b.50%

c.75%

d.100%

5.The refrigerant charge is at the machine.

6.Services such as electrical power and control air will be available at start-up.

7.The electrical and mechanical representatives will be available to assist in commissioning the machine.

8.The customer’s operators will be available to receive instructions for proper operation of the chiller after start-up.

Concerns about the installation/request for additional assistance:

I am aware that the start-up time for a Carrier chiller can take between 2 and 6 days depending on the model of the machine and the options and accessories used with it.

Your contact at the job site will be _______________________________________________________________________________

Phone number ______________________________________________________________________________________________

Cell/Pager number ___________________________________________________________________________________________

Fax number ________________________________________________________________________________________________

In accordance with our contract, we hereby request the services of your technician to render start-up services per contract terms for this

job on

 

 

(Date). I understand that the technician’s time will be charged as extra services due to correcting items in this

checklist

that are incomplete.

Signature of Purchaser

________________________________________________________________________________________

Signature of Job Site Supervisor ________________________________________________________________________________

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

2

Catalog No. 532-309

Printed in U.S.A.

Form 23XRV-1SI

Pg CL-2

309

6-06

Replaces: New

Tab

5e

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - CUT ALONG DOTTED LINECUT ALONG DOTTED LINE

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Image 52
Carrier HFC-134A installation instructions Testing YES/NO Date to be Completed
Page 51

HFC-134A specifications

Carrier HFC-134A, also known as tetrafluoroethane, is a hydrofluorocarbon (HFC) refrigerant widely used in a variety of cooling and heating applications. It is recognized for its role in refrigeration and air conditioning systems, making it a crucial component in many modern HVAC units. One of the key features of HFC-134A is its zero ozone depletion potential, which makes it an environmentally friendly alternative to older refrigerants like CFCs and HCFCs.

The characteristics of HFC-134A include its stability, non-corrosiveness, and effectiveness at low temperatures. These properties allow it to perform efficiently in both residential and commercial refrigeration systems. The refrigerant operates within a temperature range that is ideal for many applications, including food preservation and air conditioning. HFC-134A's thermodynamic properties enable it to absorb and release heat effectively, making it suitable for both vapor-compression and absorption refrigeration cycles.

From a technological perspective, the use of HFC-134A aligned with the transition to more sustainable refrigerants. As global environmental regulations have tightened, manufacturers have shifted towards refrigerants with lower global warming potential (GWP). HFC-134A has a GWP of approximately 1,430, which is lower than many of its predecessors but still higher than some newer alternatives. This aspect drives ongoing research and development in the industry, aiming to create even more environmentally sound refrigerants.

Carrier HFC-134A is compatible with various lubricants and can be integrated into systems designed for other refrigerants with minimal modifications. This flexibility allows for a smoother transition within existing installations as businesses and homeowners upgrade their HVAC systems to comply with environmental regulations.

In summary, Carrier HFC-134A plays a significant role in modern refrigeration and air conditioning technology. Its main features, including zero ozone depletion potential, stability, and efficiency, contribute to its widespread use in various applications. As the industry continues to evolve, the focus on reducing the environmental impact of refrigerants will undoubtedly influence the future direction of HFC-134A usage and the development of new alternatives.
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