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Type: Posts; User: fridg

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  1. Replies
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    Wow I missed that ,, best get some glasses or...

    Wow I missed that ,, best get some glasses or learn to read...:whistle:
  2. I'm with the guys above , don't waste time &...

    I'm with the guys above , don't waste time & money.
    A cap tube is as cheap as chips.

    Do we know why it was waxing ?

    There is a product some people put in systems with a leak that they cannot...
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    599

    Is the coil clear ? Frost is forming at inlet or...

    Is the coil clear ? Frost is forming at inlet or outlet of TXV & how far forward or back on piping ?
    Do they do a case clean at the end of every shift ?
  4. Replies
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    1,053

    This gets your liquid back & most times in our...

    This gets your liquid back & most times in our stores it stays back unless you have a grossly undercharged system , which then on demand all loads are going to raid your receiver. You need to know...
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    The pressure is going to force the refrigerant &...

    The pressure is going to force the refrigerant & oil from the bottom of the condenser.....

    The pressure in the condenser may have been at 180-220psi ,,,, all of a sudden you are ramming into it...
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    Turn all condenser fans off raise your head...

    Turn all condenser fans off raise your head pressure ,,, (I usually shoot for 300psi) maintain this pressure for 10 minutes or so,,,,,switch all fans back on & within 5 minutes you should see all or...
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    We have issues of refrigerant logging in...

    We have issues of refrigerant logging in condensers at our major supermarkets when it is about to rain.
    We are on the top of a mountain & the pressure drop causes this to happen just before it...
  8. Replies
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    1,068

    At the end of the day the customer has the...

    At the end of the day the customer has the decision to make.
    Just because you do maintenance somewhere , doesn't mean you will get repairs & vice-versa.

    Depending on value of mechanicals...
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    Acid test kit for starters , then if the valves...

    Acid test kit for starters , then if the valves have been left open id be changing oil for sure & putting acid-away in to....

    If it was me & they were left open , pull apart & inspect visually. ...
  10. Replies
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    Only issue would be if a system ends up short ,,,...

    Only issue would be if a system ends up short ,,, could almost say the leak is in the concrete cavity if not done correctly.
  11. Replies
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    Value has just gone up a bit more than your usual...

    Value has just gone up a bit more than your usual RAC. :grin2:
  12. Replies
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    22,534

    Value has just gone up a bit more than your usual...

    Value has just gone up a bit more than your usual RAC. :grin2:
  13. Thread: Co2 supermarket

    by fridg
    Replies
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    2,245

    Most cases will be at temp when these AUX are...

    Most cases will be at temp when these AUX are employed , depending on store alarm set ups , & would expect the load to not be to much...I think it may just be a case of keeping product at a manga le...
  14. Replies
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    1,382

    Can get crispy in winter but I think the main...

    Can get crispy in winter but I think the main reason was the cost of the initial build and electricity consumption. Just a guess...
  15. Replies
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    1,382

    But wait , there's more.

    But wait , there's more.
  16. Replies
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    1,382

    Here are some pics of the said boiler. I know...

    Here are some pics of the said boiler.

    I know some care will need to be taken & most of it common sense.
  17. You can get outfits that clean & treat mould ,,,...

    You can get outfits that clean & treat mould ,,, we use these guys.

    They clean the mould , treat the ducting & AHU's , then paint the whole thing for prevention of reoccurrence.

    If treated...
  18. Replies
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    1,382

    Will do.

    Will do.
  19. Replies
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    1,382

    Hi Temp-limit will be for the water? High...

    Hi Temp-limit will be for the water?
    High pressure would be for the water vapour ?

    Low water self explanatory.

    Flue gas spill ? Is this for spilage into the central plant AHU duct ??
  20. Replies
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    1,382

    Right I'm heading back to this place to conduct a...

    Right I'm heading back to this place to conduct a second maintenance.

    Any other thing I should be looking at other than the above ?

    I don't even know where the flue is but I'm sure if I look...
  21. Thread: Co2 supermarket

    by fridg
    Replies
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    2,245

    We don't have many this way neither but the ones...

    We don't have many this way neither but the ones that do its good to know you can draw on that memory bank & not have a catastrophic or product failure.
  22. Thread: Co2 supermarket

    by fridg
    Replies
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    2,245

    I undertook my training here in OZ at RMIT...

    I undertook my training here in OZ at
    RMIT University , not cheap but the outfit I work for paid for 6 of us to go.

    With-out this there would be no way I would be trying to repair a system.
    ...
  23. Replies
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    40+year Building.

    I currently have taken on board the above age building.
    It has a boiler for the heating of a Cental Plant. I have never serviced a boiler before & have only seen them in photos you guys have posted...
  24. Thread: Brixing

    by fridg
    Replies
    15
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    1,149

    1

    I am mainly a Schweppes guy but yea diet would be 4.5-1 MAX is the same.

    Brix cup is just a cup that you can pour from the gun head into & syrup ends up in one side ,, soda in the other , this is...
  25. Thread: Brixing

    by fridg
    Replies
    15
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    1,149

    5/1 - 4.5/1 on others Water quality tests need...

    5/1 - 4.5/1 on others
    Water quality tests need to be done
    Co2 tests need to be done
    & the best test of all & my favourite it the taste , odour & appearance. :grin2:
  26. Thread: Co2 supermarket

    by fridg
    Replies
    23
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    2,245

    :cheers:

    :cheers:
  27. Thread: Co2 supermarket

    by fridg
    Replies
    23
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    2,245

    Eh ,, don't be daunted by pressures , just don't...

    Eh ,, don't be daunted by pressures , just don't get your body in the position over or in front of relief valves.

    A biggie to remember is if the whole rack goes down ,, shut every LLS feeding...
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    124 units ion a roof in one day , WOW.

    Amazing & skill from everybody.

    http://www.achrnews.com/videos?bctid=3700863094001
  29. Replies
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    No When we walked in it was a stand-alone...

    No

    When we walked in it was a stand-alone system for the low temp freezer , great at keeping temperature but not so good at keeping motor replacements to a minimum.
  30. Replies
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    I have had bad experiences with R22 in low temp...

    I have had bad experiences with R22 in low temp applications , oil coking , a local convenience store had three compressors replaced in as many years by another outfit , until we came along & put...
  31. Replies
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    Great can't wait!!!

    Great can't wait!!!
  32. Thread: Nylog??

    by fridg
    Replies
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    1,297

    We use to use this (or Leak Lock) on our cabinets...

    We use to use this (or Leak Lock) on our cabinets in a manufacturing environment on the rotorlocks on freezer cabinets.
    Some of the guys used that stuff pretty liberally to avoid a leak on the...
  33. Replies
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    When the original guys did the major re-fit of...

    When the original guys did the major re-fit of the oil return system , why would they have not upgraded to the R404 or R507 ? Or was this before the 1990 Phase-in of R404 ?
  34. Replies
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    Don't use a torch now & hardly ever pull the...

    Don't use a torch now & hardly ever pull the BigDog Acetylene set out now with these guys.

    http://m.youtube.com/watch?v=Zr-mxln7pzM
  35. Replies
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    I have a set of the 557's in a case with the temp...

    I have a set of the 557's in a case with the temp probes.

    Been sitting in my garage cupboard for nearly 12 months , never been used ,, so answer to your question , yep I use the case. :D
  36. Replies
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    7,753

    I'm thinking this also ,, foaming is somewhat...

    I'm thinking this also ,, foaming is somewhat normal on return & as you have said ice on case evaps.

    I'm looking at long line lengths , a restriction & I could be wrong but incorrect oil volume. ...
  37. Replies
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    308

    The control uses a 12v transformer to give you...

    The control uses a 12v transformer to give you the display.
  38. Replies
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    10,540

    I have been in some new stores including stores...

    I have been in some new stores including stores still in their warranty period , also stores that have had major refits.

    This is a good way to get to know how the market was designed &...
  39. Replies
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    10,540

    I know of a few markets that try there own resets...

    I know of a few markets that try there own resets before we get the call & most monitor alarms before the call comes in also.

    Can be a pain when you have a refrigerant leak & 1-2 hrs was wasted...
  40. Thread: Walk in freezer

    by fridg
    Replies
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    1,145

    Line length will impact on pressure & refrigerant...

    Line length will impact on pressure & refrigerant charge also , now working backwards with temperature the same. Pumping capacity will dictate mass flow rate followed by pressure differential.
  41. Replies
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    1,001

    Hot water on the bulb of the metering device will...

    Hot water on the bulb of the metering device will let you know if it is pulsing correctly ,,, could be wide open. 6K I'd be shooting for.
  42. Replies
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    Does the ice travel all the way back to the...

    Does the ice travel all the way back to the outside motor ??

    You do need to get that thing serviced ,, bit like a car ,, you wouldn't drive it 50000Kms without at least one minor service.....
  43. Replies
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    Sounds good ,,, the refrigerant expands as it...

    Sounds good ,,, the refrigerant expands as it goes through or exits the metering device & now it can receive the energy more easily from the space.
  44. Replies
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    Would not even try to sniff without my D-Tek...

    Would not even try to sniff without my D-Tek Select , do have a CPS ls3000 $500 but is always second fiddle to my Javac. :grin2:

    After use I unplug the 2pin plug in the battery compartment as I...
  45. Replies
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    689

    The basic of it is imagine water in a coffee jug...

    The basic of it is imagine water in a coffee jug , as it sits it is a saturated liquid.
    Turn the jug on & the water boils the the water is becoming superheated & the steam is the superheated...
  46. Replies
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    I'm the same ,, help a guy take his tools back to...

    I'm the same ,, help a guy take his tools back to the truck ,, but let him put em away where he knows they go. Most of our guys run like this.
  47. Replies
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    A few of the never ending process of LEAN. :grin2:

    A few of the never ending process of LEAN. :grin2:
  48. Could be the door switch ,,, the door might be...

    Could be the door switch ,,, the door might be open.....
  49. Replies
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    Nope , just the Danfoss as mentioned & the...

    Nope , just the Danfoss as mentioned & the trax-oil.

    Thanks for the info , going straight into iBooks library.
  50. Replies
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    What is this encapsulated pressure control ? ...

    What is this encapsulated pressure control ?

    It has Danfoss HP/LP & Danfoss oil HP/LP , the sump of the compressors doesn't even have the pressure differential inside.
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