Vilter 440 compressor
Has anyone really looked at a Vilter internal relief valve? I'm wondering if they actually work in a working system, that is obviously out of control to have head pressure of 300psi. Sabroe worked it...
View ArticleOptimal / Desired High side pressure for R134a best efficiency?
Hello. The Question is, what is the optimal pressure of the refrigerant in the liquid line of an R134a System. Is there a certain point that when exceeded, efficiency begins to drop very quickly, or is...
View Articlecondenser sizing
Hi, can somebody give me some solutions on the given problems. 1. original condenser has failed beyond repairs (running for 134a system). so an available condenser almost same capacity designed for R22...
View Articlewhat are the difference between bearings and bushings
Hi what r the major differences between bearing and bushing bcoz here most types of air conditioner fan motor are bearing type while one split ac are bushing type why they used bearing or bushing
View Articleold butcher serve over
i was asked to have a look at an old butcher serve over chill, its about 4 meter in length with two seprate evaps and three storage compartments underneath. He has a burst evap red dye and oil...
View ArticleEN378-2008 Refrigerant Practical Limits In Plantrooms
Would appreciate any comments or help regarding the above regulation first saw it mentioned on the IOR website and subsequently on a GEA guide to refrigeration plantrooms. It mentions about refrigerant...
View ArticleTechnical problem
if i totally filled my chest freezer with sachet water the compressor sometimes stop after working for some hours but if partially filled it doesn't behave like that. what can be the cause of that?
View ArticleAiredale CU90
Hi, Does anyone have a copy of the manual including the wiring diagrams of an Airedale CU90 unit. I've spoken to Airedale and even they don't have one because it's older than 10 years (2001). Thanks
View ArticleSecondary Glycol leak
Hello All What an awesome site. I have a secondary glycol system in a supermarket that has a small leak. We are unable to trace the leak as the glycol is transparent, is there any way of adding some...
View ArticleFujitsu Interter ASTA 18LCC Flashing Lights
Hey guys, after trying to turn on my air conditioner in my room the operation and timer lights have started to flash. They both flash simultaneously four times and then the operation light flashes by...
View ArticleShunt Reactors
Hi Guys Can someone explain to me how exactly a shunt reactor works and what is a common cause of failure on Shunt reactors. Thank yu in advance Don45
View ArticleBeko cool64bfd compressor and fan won't run
I've had my fridge freezer 17months. Recently it would run intermittently regardless of whether it was down to temp or not, now it will not run atall. There is voltage to the compressor relay and up to...
View ArticleBitzer (High Oil Pressure)
Hello Guys, Please I need advise on a oil pressure problem. Bitzer Semi 6cyl running on R22 for Packaged Air Con unit. Suction 6BAR, HP 18BAR, oil 16BAR and ambient 36 d/C in South Africa. The oil diff...
View ArticleI can't read threads any more
I am not sure why I cant see lots of the thread in the electrical area. I used to like to read off the old discussions but I can't see them any more. If I look on the front page of the forum it says...
View ArticleNew Denco passwords
Hi everyone Does anyone know the passwords for the new Denco equipment with the Carel pCo processor in. The levels are General, Engineering and Advanced. Any help would be appreciated. NB. I am not...
View ArticleP.M templates needed.
Thanks in advance guys. I'm going more full time in my business and I've figured out that the back bone is P.M.'s. my specialty is mom and pop restaurants in SC. (lots of external heat load). And I...
View ArticleGEA FES GL series Shaft Seal Leaking too much Oil
The shaft seal was replaced 1.5 years ago because of a NH3 leak. It was replaced again 8 months ago because of excess oil leaking. Its leaking a liter to a liter and a half a day of oil. Any advice? I...
View ArticleWaste Heat Recovery from Ammonia chiller condenser (ICE PLANT)
Hello, i have been reading these forums for quite some time and all your discussions has helped me alot. My name is Johann and I work for a company that sells absorption chillers in the Philippines....
View ArticleCoil Sizing for ammonia refrigeration system
Hi there, I am student at a university and have been given a project of designing a ammonia refrigeration system having a blast freezer and a cold room. I have calculated all the load values and now...
View ArticleClik here to view.
Walkin Chiller pipe line Connection
Hello, I am working as a resident Engineer in one of the main Hotel in Dubai Our cold room in main kitchen have 32 walk-in chiller,freezer and cooler These chillers are frequently tripped due to the...
View Article