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22-10-2018, 03:00 PM

chemi-cool replied to a thread Ammonia consumption in NH3

No, There is a leak, you just didn't find it yet.:D

1 replies | 6 view(s)

22-10-2018, 02:15 PM

manmohan started a thread Ammonia consumption in NH3

Hi friends my plant is need refrigerant charge after few months without any likege it is normal ???

1 replies | 6 view(s)

22-10-2018, 08:33 AM

fuji wong replied to a thread Careal power + driver burning. in Air Conditioning

1st case at SH RYC trip only (PSD00224....),2nd case at SH RTU burn when unit is not running (PSD1035....) , 3rd case burn unknown ( is unit running...

1 replies | 40 view(s)

22-10-2018, 07:48 AM

fuji wong started a thread Careal power + driver burning. in Air Conditioning

My 3 site data center crac units 3 nos. Compressors DC power

1 replies | 40 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 | 92 view(s)

20-10-2018, 11:28 AM

tsialkoutis replied to a thread Daikin EWAQ480F Chiller in Trouble Shooting

6363: Service password

4 replies | 249 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 | 92 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 | 92 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 | 227 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 | 99 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 | 118 view(s)

18-10-2018, 02:43 PM

chemi-cool replied to a thread Electrical/BMS books in Refrigeration Books

Have you tried looking on youtube? There is plenty there.

2 replies | 118 view(s)

18-10-2018, 12:04 PM

eire1 replied to a thread Mitsubishi City Multi PARF27MEA mode flashing in Air Conditioning

Did you do a virgin restart?

4 replies | 227 view(s)

18-10-2018, 10:51 AM

HVACRsaurus replied to a thread Chiller condenser sensor set up in Trouble Shooting

Hi. I’ve seen sensors mounted higher up on the return bends, or the liquid header, or pushed into the fins - probably no real drama to reposition...

1 replies | 186 view(s)

18-10-2018, 09:30 AM

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

Thanks! It's been running OK since 2009, it can only be an addressing issue. I re-addressed each unit to it's group but maybe there's other units...

4 replies | 227 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 | 118 view(s)

18-10-2018, 08:08 AM

eire1 replied to a thread Mitsubishi City Multi PARF27MEA mode flashing in Air Conditioning

All I could find, top section of the pic.

4 replies | 227 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 | 227 view(s)

17-10-2018, 09:21 AM

RANGER1 replied to a thread Dunham bush compressor info in Industrial Compressors

Danod, Have a manual & sizes of journals/bearings. At the end of the day 0.004" to 0.005" rotor journal clearance & discharge end...

1 replies | 137 view(s)

17-10-2018, 05:40 AM

cricri replied to a thread Oil charge for a Grasso ms1027c mono screw comressor in Technical Discussions

This is the original oil table, 1984!. All are basic mineral oils and NH68 did not exist at this time. I'm not found of your artic SHC NH68! bad...

1 replies | 116 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 | 116 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 | 137 view(s)