Oil Type change
For a Danfoss Performer compressor (R410) wich uses normally POE 160 SZ (32 viscosity) what can happend if the oil used is Planetelf ACD 68 (68 viscosity) ? Thank's .
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Screw Compressor tripped due to low Suction Pressure
Hello everyone; In our Plant we are using a Screw Compressor to compress Hydrogen (Recycle & make-up) to get the desired discharge pressure for Hydrotreating Reactors. At 09:11:07 am, the...
View Articleexpansion valve body getting ice frozt
Hi We having bitzer chiller for - 30 deg , in this chiller we are not able to go beyond -15 deg c also the expansion valve body getting ice frosting very frequently Pl help me Sekar
View ArticleValves on FCU, AHU
Hi, 2 way vales 3 way valves Balancing Valves. One amongst the three are used in most of the installations. Can someone explain what function each does. When we adjust the thermostat, is it the...
View ArticleCarrier 69NT40 Fuse 1 blowing
Hi, Wonder if anyone can tell me what fuse 1 (3 amp) on the relay board of an old 69nt40 feeds. Looked at one late this afternoon, replaced fuse ran fine for about 10 minutes then failed again. Need to...
View ArticleDanfoss AK-PC 740 pack controller
I have 4 x 740 pack controllers 1 is ok but other 3, the comms module is burnt out almost as though 240v has been put on the comms module. Has anyone come across this before, the pack controller which...
View ArticleThermo King and Carrier parts needed ! ASAP !
Dear all, I am trying to locate all types of spare and new parts for THERMO KING AND CARRIER REFRIGERATORS ! PLEASE CONTACT ASAP... SAM - 07512 684 200
View ArticleHey guys..
I am just new in this community from New York.. I am just 23 years old and doing trying in a local workshop for electronic repairing.. And soon I will try to do my job in good company.. I hope you guys...
View ArticleSamsung AVQ12-FAN communication error
Samsung AVQ12-FAN. The outdoor unit is completely died! The outdoor unit leds doesn't turn on ta all. After a while the indoor unit leds shows "communication error( indoor <->outdoor ) pre power...
View ArticleThermoKing V-500 max
Can you please try to answer me one question. I am servicing thermo king V-500max, and I changed the freon form r134 to r404. It is possible to change that parameter in a computer with a in cab...
View ArticleFan motor help for Sanyo spw-c185h
Hi I am currently working on a Sanyo multi split, indoor model is spw-x185h the problem I have is on turning on the remote the units go into a p-12 error code, after investigation I found the indoor...
View ArticleCity multi water cooled- not cooling
Hi All, I'm looking at a city multi PQRY p250ymfc. Water cooled, the condense water is perfect @26 degrees,The compressor runs and pumps, as far as I know it's correctly charged, and there is...
View ArticleBooks on Evaporators
Hello, Are there any books devoted to the Evaporator of a refrigeration sys? I have a project 'Solar Powered Refrigeration, performance investigation and optimisation', so i have to select a system or...
View ArticleSolar Powered Refrigerator
Hello again, I have a university project to complete and i am finding it very difficult to get anywhere, feel as though it should have been a seperate degree: My project: 'Performance investigation and...
View ArticleRotary compressor cooling
It's a long time since I can't explain myself about the following thing: Motors of hermetic recip compressors, and scroll compressors are cooled by passing suction refrigerant, which, of course,...
View ArticleCooling Dock Load Calculation
So I'm doing an infiltration load calculation on a cooling dock and I was wondering if there was a different way to go about it than what ASHRAE states. ASHRAE's simplified equation is: q =...
View ArticleCar Air Con - 2nd opinion
Hi, just wondered if I could get a 2nd opinion, much appreciated and thanks in advance. Went to a mk1.5 ford galaxy today, basically same car as the seat and VW sharan. Vacuumed it for an hour, so no...
View ArticleVersatemp
Ok does any one have any info on these bad boys ? Got a shop with 14 ducted type units fitted all running on r22 , we got 7 I stock room which work and 7 on shop floor but only 5 work . So got to go in...
View ArticleCan i use R404a in a R290 system?
Hi Folks Quick question, i have a R290 freezer thats under performing and i need to weigh out the contents to ascertain weather it is low charge / possible leakage that is causing poor performance. I...
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