You can add keywords to the document properties of a pdf that other people might use in a search utility to locate the pdf. Soft optimization changesadjustment of expansion device 14 turn openrefrigerant charge unchanged 4 kgs results are compared to the same trailer refrigeration unit running on r404a tested at same ambient. It can also be used to retrofit some old r22 systems with an oil change. Because it is a blend, it is recommended that rs45 r434a be charged into systems in the liquid as opposed to the gaseous phase. Rs50 is a high efficiency dropin replacement for r404a and r507 refrigerants.
Its easytouse interface helps you to create pdf files by simply selecting the print command from any application, creating. Linde gases ag gases division, seitnerstrasse 70, 82049 pullach, germany. Exiftool may be used to write native pdf and xmp metadata to pdf files. Select the security tab of the document properties dialog see figure 2. The gwp used as a reference here is the gwp of co 2 over an integration period of 100 years. This leads to a different design of details in many cases.
Dont confuse attached comments with file attachments. Rs50 r442a has demonstrated extreme energy saving in case after case. Pdf converter convert files to and from pdfs free online. If exiftool was used to modify a pdf file, the original may be recovered by deleting the. Attachments may include links to or from the parent document or to other attachments. Affecting this degradation are a refrigerants critical temperature and molar heat. To check for and remove personal information from adobe pdf files from acrobat. New tables of the thermodynamic properties of freon 404a r404a refrigerant ashrae designation.
But in a critically charged system, the entire refrigerant charge should be replaced with fresh rs45 r434a. A difference between r290 and r4a is in the pressure level, which is closer to r22 and r404a, e. Pdf properties and metadata, adobe acrobat adobe support. Thermodynamic properties of suva 404a hp62 refrigerant. These tables are based on extensive experimental measurements. Although the winansi and macroman encodings are derived from the historical properties of the windows and macintosh. On the other hand, refrigerants r449a and r452a exhibit 1. Document properties accessibility adobe acrobat dc pdf. Refrigerant properties glide and heat exchanger performance r404a is a quasiazeotrope refrigerant blend, which means it condenses and boils at nearly the same temperature for a given pressure temperature glide lower than 0.
Calculation of thermodynamic properties of r407c and r410a by the martinhou equation of state. At 1888 global warming potential gwp, rs50 is less than one half of r404a and r507. For refrigerant properties, application ranges and lubricant specifications, see pages 41 to 44. You can find it most commercial refrigeratorsfreezers, in vending and ice machines, in refrigerated transport, and in specific industrial applications. To view metadata in a pdf document, open it with adobe reader or adobe acrobat and select properties in the file menu. Pdf documents are often neglected in onsite seo efforts. Select the description tab to view the metadata in the document, including the document. R404a and r507a as substitutes for r22 and r502 r407a, r407b, r407f, r407h and r422a as substitutes for r22 and r502. The model results also show that in this hussman r404a display case system, r410a still operates more efficiently with a cop generally 0. R 404a r507a safe and nonflammable ashrae2 a1 approved and adopted by major equipment manufacturers compatible with existing equipment designlubricants can be topped off after leaks 1according to assessment report 5 ar5 2american society of heating, refrigerating, and airconditioning engineers opteon xp44 properties. We have 1 danfoss r404a manual available for free pdf download. If you want to read it from the presentation server get it the properties from some exe that returns that info. Lilac stripe and the text r404a r507 or r404a r407c r507. Pdfa is an isostandardized version of the portable document format pdf specialized for.
Like r407a, r407f is fully compatible with the poe lubricants used in an r404a system and, in many cases, the original oil can be used. R407f has a lower mass flow than r404a, so some recommend checking existing piping to ensure compatibility. Opteon xp40 is suitable for new installations, as well as for retrofit of existing systems, offering improved energy. R404a is characterized by a remarkable chemical stability and low glide temperature 0. If you move the pdf to a new location, the attachments move with it.
Refrigerant r290 r600a r4a r404a r22 r12 name propane isobutane 1,1,1,2tetraflouroethane mixture r125 r 143a r4a chlorodifluoromethane dichlorodifluoro. Features and uses of r404a r404a is a ternary mixture consisting of r125, r143a and r4a. Information on basic physical and chemical properties. Rearrange individual pages or entire files in the desired order.
Capacity and efficiency values should be equivalent to r502, and compressor discharge temperatures may be up to 9 c 14 f lower than r502, which may equate to longer compressor life and better lubricant stability. Compress, edit or modify the output file, if necessary. Soft optimization test of a r404a alternative refrigerant. Identification of a supermarket freezer display case system designed for r404a with a. Freon 404a r404a offers the best overall properties when compared with r502. R410a refrigerant pdf thermodynamic properties of dupont suva410a refrigerant. Options with lower gwp than r 404a r407series of hfcs would be similar rr note refrigeration.
However, mixtures of r 404a with high concentrations of air at elevated pressure andor temperature can become combustible in the presence of an ignition source. In 2000 international refrigeration conferences at purdue university. Pdf metadata how to add, use or edit metadata in pdf files. Everything you need to know about the coming changes in. The tool will instantly upload and transform the file into a pdf. The files will be publicly downloadable or emailed, and i do not want any user of any os windows, mac, linux.
R404a 44524, a near azeotropic blend of hfc125hfc143ahfc4a, have been developed and are presented here. R404a is a blend of hfc refrigerants commonly used for medium and low. Specifying the document title using the title entry in the. Department of energys doe building technology office bto, a part of the office of energy efficiency and renewable energy, engaged navigant consulting, inc. R 404a refrigerant blend page 3 of 8 r 404a is not flammable in air at temperatures up to 100 deg. Click the description tab, and type the authors name, subject, and keywords. R404a is ptk penjas sd pdf an hfc blend that is widely used in low and medium temperature. Pdf checker enables users to detect problems within their pdfs that may impact the ability for other tools to process pdf files. In connection with this the normal boiling point, is close to r22 also.
For reasons of clarity the less or only regionally known products are not specified in this issue, which is not intended to imply. R111, 2 global warming potential 100 year, ipcc 4th assessment report, 2007. The properties of r600a and r290 differ from other refrigerants commonly used in small hermetic systems, as shown in table 1. It has a similar cooling capacity to r404a and improved energy efficiency. Viscosity of mixed refrigerants r404a, r407c, r410a, and r507a. You can access the free pdf file converter anywhere, with an internet connection. George, i use windows 7 that purportedly allows the removal of any computerpersonal information from any type of file including the all important pdf files following the procedure that i described in my original posting. Their thermodynamic characteristics constitute as ideal replacement for r502 for refrigeration sector in new facilities at low and medium temperatures. New tables of the thermodynamic properties of dupont. The new ipropertyhandler interface must be implemented to let custom file properties like title, author, comments appear in windows explorer file explorer.
Only enter once testing has proved the atmosphere to be safe, and remember that the gas is heavier than air. You can attach pdfs and other types of files to a pdf. R404a is suitable for use in new equipment as a replacement for older r502 applications. Product information sorted by environmental impact 1 ozone depletion potential, unep 2006. The pressure readings in the excel file on your disk have already been converted to absolute values. Check the document properties and personal information box you can. However, the suitability of a pdf file for archival preservation depends on options. R22 and r410a split airconditioning systems were tested and compared as. Research and development roadmap for nextgeneration low global warming potential refrigerants ii preface preface the u. How to optimize pdf documents for search youmoz moz. Pdf995 is a printer driver that works with any postscript to pdf converter.
Refrigerants r402a, r402b, and r404a properties, uses. Today the hfc r404a is one of the most commonly used refrigerants in the united states and in the world. R404a is a quasiazeotrope refrigerant blend, which means it condenses and boils at nearly the same temperature for a given pressure temperature glide lower than 0. These data are derived from the brochure thermodynamic and physical properties of r404a published by the iir. Smallpdf pdf converter operates fully in the cloud. As expected, r410a operates at a higher compressor discharge pressure and temperature than r404a. The move to low gwp refrigerants august 25th, 2016 andrew stapleford, cpa, cma. Danfoss r404a manuals manuals and user guides for danfoss r404a. The mixture gwp is calculated depending on that of pure fluids which compound it basing on values from the. Refrigerant properties glide and heat exchanger performance. Guidance on the future use of r404a and the new f gas regulations the new f gas regulations which come into force on 1st january 2015 place restrictions on the use of certain hfc refrigerants in certain applications. R404a thermodynamic properties pdf 75 kb r404a retrofit to pub 22 copper for busbars pdf r407f guidelines.
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