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Type: Posts; User: DeniV

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    Clean room freezing

    Got a call today about a clean room at food process plant fighting to keep its temperature.
    Noticed the evaporator had some ice accumulation. Its a four circuit coil with two circuit on top of the...
  2. Every time i swap one out its a somber moment

    Every time i swap one out its a somber moment
  3. Still have plenty of fedder water coolled...

    Still have plenty of fedder water coolled installed in the olympic village in Montreal. Those are the two oyramids built in 75 for the olympic games. They have not been properly cared for seeing as...
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    What press did propane work on? Teacher told me...

    What press did propane work on? Teacher told me some old household fridges worked on propane. Just a guess.
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    Using the senseless death of 150 inocent people...

    Using the senseless death of 150 inocent people to convey your political stand point is as shameless as the politicians who you support or critisize.

    Classic touch the heart and while your there...
  6. The bigger the machine the morr load it needs....

    The bigger the machine the morr load it needs. Big cant charge like small. So big does nt do small. Its like trying to feed a 200 ton chiller with 3/4 inch pipe.
  7. True. The company i work for has the same rates a...

    True. The company i work for has the same rates a original post. But thats why we dont do residential or light commercial. Too expensive.
  8. Overcharging opens the market to haks....

    Overcharging opens the market to haks. Undercharging kills the market. Got be reasonable.
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    Is the outdoor unit mounted on exterior wall or...

    Is the outdoor unit mounted on exterior wall or on ground? Had a unit mounted on wall that in heat mode would ice up under compressor basically voiding the rubber comoressor mounts. Vibrations would...
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    Nice

    Nice
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    Been meaning to get around to making one of...

    Been meaning to get around to making one of those. Great job sir.
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    Who are these guys. Discovery should do a show on...

    Who are these guys. Discovery should do a show on them. I would watch. " Next week on Hacks"
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    This portion of your training although tedious...

    This portion of your training although tedious and frustrating for many is the most crucial. Give it your full attention . You will be glad you did.
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    I guess the millesecond delay from relay to motor...

    I guess the millesecond delay from relay to motor is enough. Still would have done it dif.
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    From what i gather the relay is useless. But what...

    From what i gather the relay is useless. But what the heck. Usually we dont want a toggle switch taking motor amps on start .hence the relay. But not the case here. A 24v circuit with a second...
  16. Thread: Icm bypass timer

    by DeniV
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    Scrap what i said. I had put a relay as a load....

    Scrap what i said. I had put a relay as a load. Just looked through my galerie on my phone. Still good to know for futur.
  17. Thread: Icm bypass timer

    by DeniV
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    4,332

    Could have been another brand got one in the...

    Could have been another brand got one in the truck will check later.
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    Residential duct sizing

    Hi . Was wondering if anyone can reccomend a good duct sizing tool.
    Also a good load calculator for system sizing. Wanna do a good job on this one and wanted something more precise than intuition...
  19. Thread: Icm bypass timer

    by DeniV
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    4,332

    Great thread. Didnt know timer needed min load ....

    Great thread. Didnt know timer needed min load . I put one in on another type of module worked fine. Guess i was lucky.
  20. Thread: Rip off artists.

    by DeniV
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    They had his credit card info pre hand charged...

    They had his credit card info pre hand charged him on the spot.
    Listen.. i get not being able ti figure it out. It happens. The company i work for has 40 trucks on the road. Everyone with dif...
  21. Thread: Rip off artists.

    by DeniV
    Replies
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    2,267

    Sorry for the typos having hard time with this...

    Sorry for the typos having hard time with this phone
  22. Thread: Rip off artists.

    by DeniV
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    2,267

    Burn mr yo hear this kinda stuff. Gives us all a...

    Burn mr yo hear this kinda stuff. Gives us all a bad name.
  23. Thread: Rip off artists.

    by DeniV
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    2,267

    Rip off artists.

    Got a call refered from a friend. His neighboors heat was not working.
    We are currently going through a nice cold snap up here in Montreal Canada.
    -23C with wind -35C.
    Show up and find an old...
  24. Thread: Low Bid Ducting

    by DeniV
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    10,212

    We used to crane them up often. We did also go...

    We used to crane them up often. We did also go back once a month and check up on unit. But leaving flex dangling was not acceotable. Plus the fkex we used was made specific fir outdoors double and...
  25. Thread: Low Bid Ducting

    by DeniV
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    10,212

    Whole setup that is.

    Whole setup that is.
  26. Thread: Low Bid Ducting

    by DeniV
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    I appoligize man. I wad under the empression that...

    I appoligize man. I wad under the empression that the whole wad temporary and that they ended up keepin it for a year. My bad.
  27. Thread: Low Bid Ducting

    by DeniV
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    10,212

    Yes i did. Where are you going with this?

    Yes i did. Where are you going with this?
  28. Thread: Low Bid Ducting

    by DeniV
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    10,212

    Did a lot of installs like that with previous...

    Did a lot of installs like that with previous employer. There is a whole industrie of temporary rental coolling from 1 ton portables to 400 ton chillers. Its not ment to be permanent. Ofcourse some...
  29. A small fraction of what is charged on the hr...

    A small fraction of what is charged on the hr rate goes back to them
  30. I m sorry that wasnt my intention.

    I m sorry that wasnt my intention.
  31. ATTENTION ALL EQUIPEMENT OWNERS SEEKING ADVICE.

    After a very recent situation up here in my hometown and manymore daily situations like it . I feel it very important to explain this VERY IMPORTANT MESSAGE.
    DO NOT ATTEMPT TO REPAIR YOUR EQUIPEMENT...
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    The 8 hours was my bad i was sure it would be...

    The 8 hours was my bad i was sure it would be enough. But this sucker didnt wanna shoe itself. Still did it in 8 but had to blitz the second half.
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    Thx. It sure took enough of it. No damage on fins...

    Thx. It sure took enough of it. No damage on fins or coil. Must of been from manufactuer and just slowly grew with time . Unit over 10 yrs old. I just brazed with 5% silver. It is a bandaid . sales...
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    I repaired it . Replacing coil will be not far...

    I repaired it . Replacing coil will be not far from replacing machine. Due poor accessability
  35. Replies
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    The art of leak detection.

    Had a water coolled heat pump in a suspended ceilling lose 2 of its 3 lb total charge over the course of a year. I know this cause a previous tech was there last year and not find the leak so he...
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    Once

    Once
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    Added note. I would change the roll out. Those...

    Added note. I would change the roll out. Those things have a tendancy to trip for nothing after having tripped ounce.
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    Beautiful

    Beautiful
  39. Never seen them run out a window. But here in...

    Never seen them run out a window. But here in Montreal. Tenants can refuse to pay rent if heat is not working. They place the call but are never there cause if i fix it they will have to pay their...
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    Is it 25 srt and 35 suction temp or 25 superheat...

    Is it 25 srt and 35 suction temp or 25 superheat at the coil and 35 supeheat at the compressor. Sorry just wanna be sure . Whats your evap superheat is what im not clear on 10 or 25?
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    Check that tranfo size is rated for the number of...

    Check that tranfo size is rated for the number of contactots and or relays plugged on it. See this often with old frankenstein units. Check that for any partially grounded wires ie. Touching...
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    Emersson electronic expansion vavles?

    Just followed a training from emersson on these valves . It was more of sales conference. But hey he sold me. Was wondering if you guys have worked with them and what the pros and cons are.
    ...
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    Lol they have them on the discharges of each comp.

    Lol they have them on the discharges of each comp.
  44. Replies
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    And instead of refrigeration i mean ac. I think i...

    And instead of refrigeration i mean ac. I think i should stop now. Wow epic fail. Lol
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    Sorry i meant this one.

    Sorry i meant this one.
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    Tandem comp circuit in basic refrigeration RTU...

    Tandem comp circuit in basic refrigeration RTU have check valves. I'm just being a d@#k.:p
  47. Thread: subcooling

    by DeniV
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    http://www.achrnews.com/articles/subcooling-is-the...

    http://www.achrnews.com/articles/subcooling-is-the-missing-piece-of-the-puzzle


    Should sum it all up for you.
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    " around the LLS via a bypass check valve and...

    " around the LLS via a bypass check valve and into the liquid line header. " this is the conflict. There is no bypass on that section of pipeing in the rack house. Unless the LLS works as a check...
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    Parallel Pack .liquid return on defrost?

    Got a speedy walk through on a phoenix parallel pack today. I probably should have taken a picture of the pipeing shcematic . Will do soon. Was just wondering how the hot gas wich i would assume...
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    Used to work for a rental outfit. Every season we...

    Used to work for a rental outfit. Every season we used get machines ready at the shop before renting them sometimes to same customers for movie sets ect..... in one case we wanted more speed for a...
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