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08-10-2018, 06:35 PM

CCLPaul started a thread Qualifications and Skillcard in Training

I have been in refrigeration and air conditioning for 30 years but never completed my BTEC course in the early 90s, so don't have any formal...

14 replies | 807 view(s)

24-09-2018, 10:09 PM

Airconking started a thread Pressure controlls Settings in Trouble Shooting

Hi just wondering what “rule of thumb temperatures” converted to pressure you lads are using when setting up your pressure controls. based in...

10 replies | 579 view(s)

07-10-2018, 06:39 PM

coolguy4 started a thread Do refrigerants degrade? in Refrigerants

So this is something I’ve wondered about for years. Presuming there is no contamination, leaks, or other problems, would any refrigerants degrade in...

8 replies | 375 view(s)

06-10-2018, 10:35 AM

Grizzly started a thread Sad News. in Chit Chat & Service Stories

A Friend of mine who is a Pest Control Officer for a very well known company. Told me yesterday about 2 Pest Control officers from another company....

4 replies | 617 view(s)

30-09-2018, 12:07 AM

RANGER1 started a thread Grasso E screw compressor in Industrial Compressors

Recently overhauled Grasso E. Came across spring extension(117) guide ring/ "0" ring replacement (665, 697). Anyone know secret to successful...

6 replies | 412 view(s)

01-10-2018, 01:37 AM

coolguy4 started a thread What can make a capacitor explode? in Trouble Shooting

Hey guys, I have a problem with one of the AC units in a house I just bought. It’s a Whirlpool ACM184XJ1. I finally had a few minutes to mess with it...

4 replies | 467 view(s)

28-09-2018, 03:17 PM

Lastguest started a thread Free cooling for chiller rooms in Technical Discussions

Hi people , Has any one ever tried or come across the cooling of chill rooms in winter with outside air, and if so I would like to hear your...

4 replies | 428 view(s)

14-10-2018, 05:22 PM

TrickyRikki started a thread Daikin EWAQ480F Chiller in Trouble Shooting

Can any one help me with this chiller, its the first time ive worked on a daikin chiller. i had the call for the chiller not working at all, when...

4 replies | 220 view(s)

02-10-2018, 10:35 AM

chilliwilly started a thread Beware of School Service Supplies - sounds like a scam! in Chit Chat & Service Stories

I recently spoke to a friend of mine telling me he had a call from the above company. They told him that they will be the new organisation for...

3 replies | 614 view(s)

28-09-2018, 12:48 AM

Saturatedpsi started a thread Units Of Air Volume in Air Conditioning

In Yankee Land, airflow is most often expressed as CFM...cubic feet per min. Is there a more /most, favorite/common metric expression around the...

4 replies | 384 view(s)

30-09-2018, 09:21 PM

seanf started a thread Compressible flow in Fundamentals

I’ve been reading a beginners fluid mechanics book, which briefly introduced compressible flow with examples of nozzles, shock waves, Rayleigh and...

4 replies | 423 view(s)

06-10-2018, 07:41 PM

Dr Frost Bite started a thread Melting cables in my Frigadon chiller 😮 in Industrial

Hi everyone, I've been working on this chiller and during routine maintenance I noticed the cables supplying the overloads that protect the...

3 replies | 351 view(s)

17-10-2018, 10:05 PM

Contactor started a thread Mitsubishi City Multi PARF27MEA mode flashing in Air Conditioning

Hello Does anyone here know why the mode symbol (heating symbol in this case) would flash on a PARF27MEA, groups and units have been addressed...

4 replies | 158 view(s)

28-09-2018, 04:13 PM

mirek9090 started a thread Refcomp inverter controls in Controls

Please help me out with understanding analog outputs from Carell controller: Y1 is going out to EXV driver Y2 is the demand signal to Refcomp...

2 replies | 242 view(s)

01-10-2018, 01:25 AM

Saturatedpsi started a thread R-421A Dew Point #2 in Refrigerants

I started a dew point thread a year or so ago, which is now closed... R-421A Dew Point I never was quite satisfied with my minimal degree of...

2 replies | 292 view(s)

14-10-2018, 10:46 AM

charlie patt started a thread Carrier trailer 2005 in Transport

Carrier 1800 40 ft trailer has a technician reset required I've traced the fault and parts are ordered but can I reset the technician reset or plug...

3 replies | 181 view(s)

27-09-2018, 08:34 AM

ronaldo9 started a thread Sanyo remote in Air Conditioning

Hi Guys I have an old Sanyo split (407c) spw-cr363ehl8 didn’t make a note of the indoor . When the controller is turned on it runs for 10 seconds...

2 replies | 273 view(s)

20-10-2018, 12:01 AM

Jovanna started a thread yellow jacket recovery machine 95760 rebuild? in Technical Speculations

I needing to rebuild my yellow jacket XLT recovery machine. model 95760, I have the owners manual with ID parts and numbers. it's like giving a kid...

2 replies | 70 view(s)

18-10-2018, 08:36 AM

eire1 started a thread Electrical/BMS books in Refrigeration Books

Would anyone know of any good books or even maybe people on Youtube about electrics and BMS? I really struggle with BMS and controls esp the wiring...

2 replies | 96 view(s)

15-10-2018, 02:57 AM

WCEbloke started a thread Chiller condenser sensor set up in Trouble Shooting

Hi all, I'm working on a TRANE R-TUB 216, it is a chilled water system with a remote air cooled condenser. It uses temperature sensors to work out...

1 replies | 159 view(s)

16-10-2018, 11:37 PM

danod started a thread Dunham bush compressor info in Industrial Compressors

Looking for rotor specs and dimensions for a Dunham Bush LSC 204 and LSC 255 A, B, C and D models. Have a 204 LSC pulled apart and the rotors have...

1 replies | 122 view(s)

17-10-2018, 01:16 AM

Albert started a thread Oil charge for a Grasso ms1027c mono screw comressor in Technical Discussions

Hy guys, I am servicing an old Grasso mono screw compressor type ms1027c. It runs on a pump system R717. It needs an oil change but no one knows what...

1 replies | 102 view(s)

13-10-2018, 02:38 AM

coolguy4 started a thread Questions about R1234YF in Refrigerants

Hi guys, I have a few questions about R1234YF since information seems to be limited and hard to find. If anyone can answer any of these questions, I...

0 replies | 159 view(s)

18-10-2018, 10:14 PM

hem057 started a thread hill pheonix cases in Supermarket Refrigeration

working on a glass covered OWIZ-12 , freezer island case, can you suggest where all the condensate heaters should be, around the display glass? any...

0 replies | 75 view(s)

20-10-2018, 02:28 PM

Brian_UK replied to a thread yellow jacket recovery machine 95760 rebuild? in Technical Speculations

Daft questions maybe but ---- why does it need rebuilding, what's not working, is it electrical or mechanical?

2 replies | 70 view(s)

20-10-2018, 11:28 AM

tsialkoutis replied to a thread Daikin EWAQ480F Chiller in Trouble Shooting

6363: Service password

4 replies | 220 view(s)

20-10-2018, 08:11 AM

RANGER1 replied to a thread yellow jacket recovery machine 95760 rebuild? in Technical Speculations

Why not contact them direct. They can only say no, or have a repair service. https://yellowjacket.com/support/technical-questions/

2 replies | 70 view(s)

19-10-2018, 04:06 PM

narkom replied to a thread Mitsubishi City Multi PARF27MEA mode flashing in Air Conditioning

I guess it is a different operating mode. E.g. you set Heat mode while the non-recovery outdoor unit is in Cool mode

4 replies | 158 view(s)

18-10-2018, 09:38 PM

eire1 replied to a thread Electrical/BMS books in Refrigeration Books

Not yet, I was wondering if anyone had any specific recommendations of people/channels that are good

2 replies | 96 view(s)