Liquid RFGT in a copeland scroll
So I have a 15 ton copeland scroll, on a system with about 90lbs charge. I am just re-charging it with R-438 (MO99). I charge about 70lbs as a liquid into the liquid line, just above the receiver...
View ArticleChilled Water Plant Design Handbook & Tools
Here is another book for download https://app.box.com/s/j9xsd888g51xj8a9y5wk Hope you will find it useful
View ArticleKotza software or alternative?
I know this has been discussed on here b4, a bloke at work told me about it. It looks very good, I know his site is down and the South African coolit site only has 1 copy of the refribase manual....
View Articlecarrier 950 twin compartment
unit runs well on stby but on engine faults up check and shuts down so check idle\ high speed \oil and water ? or what else will fault it many thanks
View ArticleDaikin Skyair indoor on VRV III S
Does anybody have succesfull installed the sky air units on the vrv III outdoor unit? I have a RXYSQ-P7Y1B VRV-III-S Outdoor unit. Now i installed 3 new indoor units: FTXG 35 Emura FTXG 25 Emura FBQC...
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Daikin Master Slave Help
Hey all, I am Joel, and I am having some trouble with my homes aircon system and I was wondering if anyone would be able to give me some help. I am studying mechatronics at uni so I have some knowledge...
View ArticleBluebox Water Cooled Screw Chiller_Pressure Relief Valve Issue
Dear All, We are facing one strange problem of opening of Pressure Relief Valve(PRV) at condenser before the HP Alarm (through 1 HP Transducer and 2 HP Switch) is activated. Initially we thought the...
View ArticleHelp w/ starting issue on Carrier XTC Reefer
Hi. I have a 2006 Carrier XTC reefer that I am having a starting issue with. When the reefer sits off for a day, and I go to start it, it will not start, and I get a code A35 for "Check Starter...
View ArticleFRICK compressors RWB II -399Plus
Hi Needing some help with finding a service manual for a Frick model RWB II -399Plus Any help i would greatly appreciate. Thank you. email: Svetoslav_4040@yahoo.com
View ArticleDaikin Cassette Problem
Hi everyone, This is my first post on the site. Long time reader first time poster. I'm impressed with the knowledge on here so I thought I would join. Sorry if my first post is a headache :) Ok, I...
View ArticleOld carrier programmer
We have got an old carrier heat pump and the controller is faulty, as far as i can understand, since it just switches outputs back to the unit, we should be able to replace it with any controller, not...
View ArticleSamsung AQV12VBAN switching itself off
Hi All, I have a Samsung AQV12VBAN with a very strange fault. When turned on everything will power up ok for between 30 to 40 seconds, then the unit will just switch off, as in completely dead, no...
View ArticleSOLUTION: Maytag JAZZ damper door clicks endlessly
If the damper door motor continues to run endlessly (making a clicking sound) after reaching either the open or closed position, then the relevant open or close Triac on the JAZZ (ADC) control board...
View ArticleIce Bath Chiller temp climbing
I have a client with a flash chiller (ice bath) on a beverage system. We recently replaced a chiller that seemed to have failed for them -- temp climbing beyond set point by almost 30 degrees Celsius...
View ArticleDesign heat pump system Help!!!!!!
Hi!!! First of all hello to everyone i´m new to this forum hoping to have a great experience and learn a lot of this system and refrigeration.;) I´m having some problems designing a system for heating...
View ArticleR22 Freon import to Canada from the U.S.
Appears to be a large price difference for R22 in the US compared to Canada. I would like to purchase from the US and ship across the border. Looking for instructions on how to do so or if there is any...
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Which one of you is this+
Allright, fess up :) aOyogAD_460s.jpg Attached Images aOyogAD_460s.jpg (51.2 KB)
View ArticleDamp smell from air conditioner when running but not cooling
Hi all, I've recently had an MSZ-FH35VE fitted in a fairly small room. It's great - but when I set it to a temperature it can reach easily and close the door, it stops cooling pretty quickly and then...
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Thermistor vs RTD
Therm_vs_RTD.pdf I found this paper to be very informative about temperature sensors which we use everyday. its important for one to know what these things are and how they work. I often get questions...
View ArticleThermostat cut in and cut out
Hello guys. I am an engineer but I've never worked with refrigeration before so I would like your help understanding a few parameters. I've got a Ranco VT-9 thermostat that from info I found over the...
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