The size of this pipe can be 38 up to 25 tons capacity, and 12 up to 60 tons. Cooling calculator for cold rooms, selection and calculation of cooling units, condensing units, evaporating units. Table 1 should be used to size the liquid line when there is a liquid lift. This pc program is suitable for 32bit versions of windows xpvista7810. The most popular version among the program users is 1. The trane pipe designer streamlines the pipe design process.
Well, i have been exposed to r410a since about year 2000 working for a carrier dealer. The molecular weight of r22 and 407c are nearly the same, however say at 40f sst the cuftlb of 407c is less then that for r22 therefor less pressure drop so a longer suction line. For a complete list of copeland approved lubricants, refer to form 9311. Only the main pipe l can be used among different diameters existing piping. The initial pipe size can be looked up in either table 6a r410a or table 7a r 407c. Download mcquay pipe sizer is a very simple tool from daikin company for sizing hvac systems pipes. Copelands only approved lubricants for use with r 407c are polyol ester lubricants.
The refrigeration line sizing function requires refrigerant type, tonnage, temperatures, pipe lengths and type. The hvac tools program allows the quick calculation of hvac design tasks. The less the value of the odp the better the refrigerant is for the ozone layer and the environment. The elite software hvac tools program allows the quick calculation of. Experimentally we found that 22 piping can be small for 404 or suva 82, but for capacities of 30 tons loock so mutch bigg. The potential for a single molecule of the refrigerant to destroy the ozone layer. This is a simple, yet powerful little application for sizing refrigerant piping for many different refrigerants. In this vedio i have explained the daikin vrv pipe sizing using daikin vrv chart. Use the york comfort cooling piping software to determine liquid line pressure drop to select proper orifice sizing. The expected expansion on this application could very well be 75 x 12 x 0.
Carrier guy even said flushing is not always necessary. Compressor capacity will be comparable to r22 in medium temperature applications. R 407c should be used only in systems that currently use r22. Saravel refrigerant pipe sizing free download windows. Download 5 excel sheets for medical gases design calculations, compressed air, oxygen, n2o, vacuum air systems. Does any one have a pdf of a pipe size chart for quick reference purposes as we used to have r1222502 charts. F ft btuh, f ft ton, c m btuh, c m ton, c m w, c m kw.
The intent of this manual is to represent generally accepted safe engineering practices. The results can be exported to microsoft excel, where the data can be manipulated in a variety of ways. According to the table, a 8 inch 35 mm pipe will work for a 79. Aioflo performs pipe sizing, flow rate and pressure drop calculations for liquids and gases. The line sizes given on the specification sheets are based on a 5 pound pressure drop for the entire piping run, from 50 to 250. Pipesizer is the most simple pipe calculator for sizing pipes and velocity of chilled water systems. Freon r600 refrigerant pressure temperature chart r600 refrigerant pressure temperature chart. R22, r4a, r404a, r407a, r407c, r407f, r410a, r448a, r449a, r450a, r507a, r5a, r744 co2, r1234yf, r1234ze.
Refrigeration table 2 r407c piping guidelines for normal air conditioning duty. Aioflo pronounced ayeohflow is a windows application for pipe sizing diameter calculation, flow rate and pressure drop calculations for liquids and gases in single phase flow. Both trane and carrier have stated in classes that i have personally sat in on that pipe replacement is not necessary as long as the sizing is correct. Use the york comfort cooling piping software to determine liquid line pressure drop to select proper orifice. The program eliminates all the tedious calculations necessary when piping is sized manually and automatically corrects for all system operating conditions, interpolating and adjusting data in the tables and charts. Pick the closest next larger size when your point falls between two line sizes. Products pipesizing software and chemical engineering. Fittings for welded pipe should match the type of pipe used i. Download refrigerant pipe sizing software for free windows.
The total pressure change in a liquid line is the sum of the loss due to friction and the loss or gain due to static head in the. Liquid lines must also be sized to minimize pressure change. It does not apply to industrial refrigeration andor variable refrigerant volume vrv systems. These tasks include duct sizing, wire sizing, three way coil interpolation, mixed air and state point psychrometrics, fan curve and cost analysis, ufactor calculations, natural gas pipe sizing, refrigeration line sizing and others. To look up the line size, round the total equivalent length up to the next 25 feet. Couplings, elbows, and tees for threaded pipe are for a minimum of 3000 psi design pressure and constructed of forged steel. Pipe sizing, pressure drop and fluid flow rate calculations. Pipesize is a comprehensive, userfriendly, template for sizing pipes. Possible to use on r22 pipings panasonic heating and. Size gastite flexible gas piping with this convenient and easytouse application for the iphone. Why have these problems when there is a computer program that does accurate line sizing with all of the new refrigerants. It assists in calculating pressure drops and flow distribution in piping systems, pipe and pump sizing, and heat transfer. By continuing to use the website, you consent to our use of cookies. Honeywell 25 lbs genetron r407c refrigerant rating select rating 1 star worst 2 stars 3 stars average 4 stars 5 stars best name.
The elite software hvac tools program allows the quick calculation of common hvac design tasks. The refrigerant piping design program will select pipe size based on a specified maximum pressure drop in the line and compute minimum required capacity for oil entrainment in risers. Using the line size selected above, calculate the actual equivalent feet using. Figure 1815 is the pressure drop multiplier factor for the twophase flow for r717 based on vapor pressure drop lbsmin flow of same pipe size. To determine the liquid line pipe size for a 60 ton unit, use table 8 in appendix 2.
Large refrigerant database, including r4a, 407c and 410a. Feel the sensation of a dizzy flight over a maze of pipes. Do your homework on the pipe sizing and consider the refrigerant and oil charges and you can cool britain from canada. Pipesizer an electronic pipe calculator for sizing piping and calculating pressure drops. Eqivelant pipe length archive refrigerationengineer.
R407c should be used only in systems that currently use r22. When piping a system together, a technician must decide which pipe size to use its not always as simple as it may appear. Solkane refrigerants is a powerful calculation program for thermophysical properties. However, the superheat setting must be checked and may have to be readjusted after the system is put. Daikin software is available from your local daikin applied representative. Pipe sizing from outdoor unit to branch selector or indoor unit. Basic air conditioning piping recommendations suction. In case of different diameter size for the branch pipes, a new installation work for a standard size is necessary. Use the program to determine required pipe sizes, find the critical path for proper pump sizing, and calculate pressure drops through valvesfittings or from elevation changes. Basic air conditioning piping recommendations suction lines part 2 posted on june 19, 20 by yorkcentraltechtalk okay hopefully ive made my point that the two factors suction line pressure loss and suction line velocity are the most important parts of sizing suction lines for any air conditioning system either. Mcquay pipesizer with solved example free download. Sizing up cooling pipes to service one evaporating unit of a cooling. A comprehensive refrigerant pipe sizing tool is also included in the program. Compare performance of multiple refrigerants learn the line sizing and many more.
The software also creates typical mollier diagrams pressureenthalpy, temperatureentropy. Note, the table conditions equivalent length and condensing temperature are different than. These are the use of expansion loops or pipe offsets. Locate the tons per circuit in the column at the top, then. Pipe sizes can also be specified manually in order to examine the resulting pressure drops. The more data you include, the better your results, continued vogl. It is suggested to use industrial acceptable software if. In fact, pressure drop calculations are determined as normal pressure loss associated with a change in saturation temperature of the refrigerant. Compare performance of multiple refrigerants learn the line sizing and many. The vrf piping design software should give you the following as shown in the piping diagram above.
This may be as small as 58 example service meat cases, or as large as 8 example multishelf ice cream. Both figure 1814 and figure 1815 are the simplified version of the pressure drop multiplier curves. Using this guide this guide covers r22, r 407c, r410a, and r4a used in commercial air conditioning systems. A general knowledge of piping practices is required to make an intelligent choice. Using estimated equivalent feet from step 1, enter chart b and pick line size required. Based on method used in ashrae refrigeration handbook. You enter the pipe type, fluid type and pipe size and the program will show you the maximum allowable flow gpm for these conditions.
Suction line sizing the line sizing charts on each case specification sheet can be used to size the subfeed branch lines. Fantastic pipe textures that dont repeat themselves once. All fittings and valves are converted to an equivalent length of pipe when calculating piping and system size. General piping recommendations and refrigerant line. Aft fathom software focuses on fluid dynamic simulation. There are two common methods of taking care of expansion and contraction in copper lines used in the refrigeration industry. Cookie consent we use cookies to improve your website experience. Simulate your system with the right refrigerant and export the results to excel. View a demonstration of this software at under the design tools link. Liquid line 1f to 2f, 300 fpm suction line 2f, 750 fpm horizontal, 1500 fpm suction riser, 4000 fpm pitched 12 per 100 ft.
Addon modules are available for modeling dynamic system behavior, goal seek for unknown input parameters, and modeling of fluids containing settling solids. When designing a system, the engineer needs to maintain a solid column of liquid refrigerant to the flow control device, such as a thermostatic expansion valve, lowside float valve or highside. Refrigeration line sizing tool has the following new refrigerants. Normally, each of the system components has a stub connection of a specific pipe size. To learn about our use of cookies and how you can manage your cookie settings, please see our cookie policy. Be sure to use our genuine branch piping for refrigerant r410a. It should not be mixed with r22 or any other refrigerant. These tasks include duct sizing, wire sizing, three way coil interpolation, mixed air and state point psychrometrics, fan curve and cost analysis, ufactor calculations, natural gas pipe sizing, refrigeration line sizing, general pipe sizing, hotchilled water pipe analysis and the. R 407c has thermodynamic properties that make it look alike replacement for r22, with compressor capacities and system pressures temperatures that are similar. The sensation of top and bottom is lost after the first seconds. All refrigerants use r11 as a datum reference where r11 has an odp 1. Most common refrigerant types are built into the software, including r22, r410a, r4a, r404a, r407c, r502, r507, and ammonia. The capacity of the existing r22 thermal expansion valve tev will be approximately the same when using r 407c.
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