http://www.refrigeration-engineer.com/forums The Worlds biggest Refrigeration site for Refrigeration engineers the world over to come together and talk. A massive Jobs bank and Company Database en Fri, 20 Nov 2009 21:12:23 GMT vBulletin 60 http://www.refrigeration-engineer.com/forums/images/VA_RE/misc/rss.jpg http://www.refrigeration-engineer.com/forums http://www.refrigeration-engineer.com/forums/showthread.php?t=22007&goto=newpost Fri, 20 Nov 2009 20:34:10 GMT Anyone once else experiencing problems with their sat-navs in Milton Keynes. It seems to start as soon as you pull of the M1 at jn 15 (Coachway) and continues until you get out the other side on the A5. Ive used both tomtom and Binatone and both throw wobbleys and cant seem to locate where you... Anyone once else experiencing problems with their sat-navs in Milton Keynes. It seems to start as soon as you pull of the M1 at jn 15 (Coachway) and continues until you get out the other side on the A5.

Ive used both tomtom and Binatone and both throw wobbleys and cant seem to locate where you are

Anyone else had this problem ]]> Latte http://www.refrigeration-engineer.com/forums/showthread.php?t=22007 http://www.refrigeration-engineer.com/forums/showthread.php?t=22006&goto=newpost Fri, 20 Nov 2009 19:23:16 GMT Hello nice people,

I'm thinking about sending some of my guys on a few courses. What are your experiences (if any) of Techtrain in Doncaster?

I know Ellis has a very good reputation, but logistically Techtrain would be easier for us.

I would love to know your thoughts ]]> Training Charnwood http://www.refrigeration-engineer.com/forums/showthread.php?t=22006 http://www.refrigeration-engineer.com/forums/showthread.php?t=22005&goto=newpost Fri, 20 Nov 2009 15:57:15 GMT The smallest TXV's I've found (commercial off the shelf) have been much larger than the stated size I'm interested in. Does anyone know of a manufacturer of "micro" TXV's for very small systems?

The refrigeration system I'm working on needs to operate at a huge range of loads and temperatures. the system uses a Danfoss BD35F variable speed compressor, and I'd like to have the opportunity to use the variable speed capability to further reduce power consumption. Does anyone have a lead for me?

Many thanks in advance,

Aaron_K ]]> New Technologies aaron_k http://www.refrigeration-engineer.com/forums/showthread.php?t=22005 http://www.refrigeration-engineer.com/forums/showthread.php?t=22004&goto=newpost Fri, 20 Nov 2009 15:55:52 GMT Hello refrigeration fans, Most of my work is cold storage boxes with a 1 to 5 HP air or water cooled condensing units on top of the box. I usually just use R-134A with box temps 0-10C. Now I have a -20C R-404a walk-in cooler with the remote ACCU down stairs 3 stories (~40 feet verticle lift... Hello refrigeration fans,
Most of my work is cold storage boxes with a 1 to 5 HP air or water cooled condensing units on top of the box. I usually just use R-134A with box temps 0-10C.

Now I have a -20C R-404a walk-in cooler with the remote ACCU down stairs 3 stories (~40 feet verticle lift and 40 feet horizontal 2-pipe system with electric defrost).

I'm under the impression I need some sub-cooling due to the lift and was wondering if adding an auxillary receiver and sizing the liquid line up from 3/8" to 1/2" would accomplish this without adding a heat exchanger apparatus. I've heard pro & con on heat exchangers whether they be placed at the evaporator or within suction accumulator. The condensor size is fixed by Copeland/Emerson and I'm planning on CJAL-01500 CU(1.5 hp) to meet the load in the 6'X8' box. Hot gas bypass with liquid injection is also planned for off loading in low demand periods.
Finally, I truly believe mechanical refrigeration is one of the greatest inventions of the modern era and a great thank you goes out to REFRIGERATION ENGINEER. Regards, Joe J. Liptow ]]> Fundamentals liptow http://www.refrigeration-engineer.com/forums/showthread.php?t=22004 http://www.refrigeration-engineer.com/forums/showthread.php?t=22003&goto=newpost Fri, 20 Nov 2009 15:00:28 GMT http://www.autoacforum.com/messagevi...threadid=21381

Would YOU try to do what this guy is suggesting ? ]]> Voyager http://www.refrigeration-engineer.com/forums/showthread.php?t=22003 http://www.refrigeration-engineer.com/forums/showthread.php?t=22002&goto=newpost Fri, 20 Nov 2009 14:23:15 GMT Could anyone please comment on whether they are familiar with or use R&R Supply for refrigeration design? I'd like a general assessment of its strengths, any concerns with the simulation, etc. I'm interested in finding the best analysis tool for use in developing both small capillary tube based refrigeration machines and larger TXV controlled machines. Specific to capillary tubes, does it provide any analysis?

Thanks,

Aaron_K ]]> Tools and Calculators aaron_k http://www.refrigeration-engineer.com/forums/showthread.php?t=22002 http://www.refrigeration-engineer.com/forums/showthread.php?t=22001&goto=newpost Fri, 20 Nov 2009 12:19:36 GMT Hello R-E guys, just want to know what unit in our trade would you prefer to use because I get confused with the other unit. I am more used to psig on pressure, and Fahrenheit in temperature specially in airconditioning application. Hope R-E have a conversion formula for reference for the units... Hello R-E guys, just want to know what unit in our trade would you prefer to use because I get confused with the other unit. I am more used to psig on pressure, and Fahrenheit in temperature specially in airconditioning application. Hope R-E have a conversion formula for reference for the units used on this forum.
just asking..;) ]]> Air Conditioning Third_techtrio http://www.refrigeration-engineer.com/forums/showthread.php?t=22001 http://www.refrigeration-engineer.com/forums/showthread.php?t=22000&goto=newpost Fri, 20 Nov 2009 10:52:09 GMT hELLO, HOW to reset maintenance hourS to V500 R134-A with controller?? thanks hELLO,
HOW to reset maintenance hourS to V500 R134-A with controller??
thanks ]]> Transport incar http://www.refrigeration-engineer.com/forums/showthread.php?t=22000 http://www.refrigeration-engineer.com/forums/showthread.php?t=21999&goto=newpost Fri, 20 Nov 2009 08:32:55 GMT could anyone tell me how to pump down this unit for indoor unit change,got no manuals or info on this unit never done one before help!!!! could anyone tell me how to pump down this unit for indoor unit change,got no manuals or info on this unit never done one before help!!!! ]]> Do you have a suggestion for the RE Forums? dan24nun http://www.refrigeration-engineer.com/forums/showthread.php?t=21999 http://www.refrigeration-engineer.com/forums/showthread.php?t=21998&goto=newpost Fri, 20 Nov 2009 02:53:17 GMT Hi I have 3HP condensing unit connecting to 20000 btu evaporator in Walk-in Cooler. I want to connect one more evaporator (about 4000-6000 btu) in parallel. Can be it done in simple way. Thanks Hi
I have 3HP condensing unit connecting to 20000 btu evaporator in Walk-in Cooler. I want to connect one more evaporator (about 4000-6000 btu) in parallel. Can be it done in simple way.
Thanks ]]> Electrical alkum http://www.refrigeration-engineer.com/forums/showthread.php?t=21998 http://www.refrigeration-engineer.com/forums/showthread.php?t=21997&goto=newpost Thu, 19 Nov 2009 22:13:30 GMT Hi, Can anyone tell me where the cheapest place is to buy multi fit fan motors. I live in Berkshire, England. I think that im paying to much, and would like to buy some stock. Around 20 of each. Hi,

Can anyone tell me where the cheapest place is to buy multi fit fan motors.

I live in Berkshire, England.

I think that im paying to much, and would like to buy some stock.

Around 20 of each.

10watt
18watt
25watt

Can anyone point me in the right direction?

Im curruntly buying Elco motors from wholesalers, like climate, RPW and HRP.

Thank you. ]]> Refrigeration Articles simon sheppard http://www.refrigeration-engineer.com/forums/showthread.php?t=21997 http://www.refrigeration-engineer.com/forums/showthread.php?t=21996&goto=newpost Thu, 19 Nov 2009 21:50:49 GMT Hi, I,m pretty sure an R290 refrigeration system should be hermetically sealed. Can anyone confirm this please. Regards Bernard Hi,

I,m pretty sure an R290 refrigeration system should be hermetically sealed. Can anyone confirm this please.

Regards Bernard ]]> Supermarket Refrigeration bernard http://www.refrigeration-engineer.com/forums/showthread.php?t=21996 http://www.refrigeration-engineer.com/forums/showthread.php?t=21995&goto=newpost Thu, 19 Nov 2009 16:29:43 GMT im a trainee and im trying to find out all i can about these de-super heaters.... dose anyone have like an idiots guied to them?? or explain what they are what they do? cheers im a trainee and im trying to find out all i can about these de-super heaters....
dose anyone have like an idiots guied to them?? or explain what they are what they do?
cheers ]]> Fundamentals cameron http://www.refrigeration-engineer.com/forums/showthread.php?t=21995 http://www.refrigeration-engineer.com/forums/showthread.php?t=21994&goto=newpost Thu, 19 Nov 2009 15:59:53 GMT Hi Guys hope you can help...
I have a Samsung Cool'n'cool fridge freezer model SL39WJ1/XEU.
Got it in 2003 and it has been running sweet until now...
Basically it keeps turning it self on and off and each time there are two beeps.
Before it started to do this the display would stay on "--". But now it is driving us mad with it's constant bleeping as well as not being able to store anything.
I've tried a different power point and numerous button pushing but to no avail.
Any help will be very much appreciated.
Thank you ]]> Domestic Dazmiesta http://www.refrigeration-engineer.com/forums/showthread.php?t=21994 http://www.refrigeration-engineer.com/forums/showthread.php?t=21993&goto=newpost Thu, 19 Nov 2009 14:43:27 GMT I just had a Goodman GPH1442h41 14 seer 3.5 ton packaged heat pump (scroll compressor) installed. Is it ok to install a Kickstart hard start on a new unit. I am getting mixed signals. Some say it is good and increases life of compressor others say no. Any help would be greatly appreciated. I just had a Goodman GPH1442h41 14 seer 3.5 ton packaged heat pump (scroll compressor) installed. Is it ok to install a Kickstart hard start on a new unit. I am getting mixed signals. Some say it is good and increases life of compressor others say no. Any help would be greatly appreciated. ]]> Heat Pumps litwok http://www.refrigeration-engineer.com/forums/showthread.php?t=21993