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  1. My digicools read -28.9 when the micron gauge...

    My digicools read -28.9 when the micron gauge reads 700. If I hit -29.0 I'm like WHOA mama! Now we're cooking with GAS!!! [emoji844]
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    Thanks, just ordered!

    Thanks, just ordered!
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    Have you actually purchased and used these on...

    Have you actually purchased and used these on receivers? The ones I'm used to seeing have a tiny slot, and the tools pictured there look too thick, just going by memory
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    That is a very cool system. The fact that you...

    That is a very cool system. The fact that you custom built a giant unit for your customer is very impressive!

    In the restaurants I work in, I think exhaust vent-a-hoods and make up air are...
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    Dude that is so freaking cool!

    Dude that is so freaking cool!
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    http://www.rsd.net/fx/assets/prod/713.pdf

    http://www.rsd.net/fx/assets/prod/713.pdf
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    I gave up trying to stop them from leaking. If...

    I gave up trying to stop them from leaking. If I'm doing a big repair I just throw in a receiver on the quote. Usually only about $100-150 for a 6x12 refrigeration research receiver with a packing...
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    Wow I just reread the initial post, if you were...

    Wow I just reread the initial post, if you were sold an identical replacement compressor but it doesn't use a start capacitor, has "SAA" for the electrical code then that is a low starting torque...
  9. Closed case with defrost timer, put bulb in...

    Closed case with defrost timer, put bulb in return air. Open case with timer, put bulb in discharge air. No defrost timer use coil sensing stat or LPC.
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    If it's a 3 phase scroll running backwards it...

    If it's a 3 phase scroll running backwards it will run high suction. Or maybe the metering device is over feeding refrigerant

    If the system is under a high load with a txv, it is probably normal...
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    Just look at the letter on powerhead of the...

    Just look at the letter on powerhead of the valve. That is what it is, regardless of what the box or paper says.
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    That would be for R134a, based on the "J". If...

    That would be for R134a, based on the "J". If it had a "V" in place of the J then it would be R22
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    Pg 18 of that bulletin 10-10.

    Pg 18 of that bulletin 10-10.
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    2sac gave a great advice. And he said a 1 ton...

    2sac gave a great advice. And he said a 1 ton valve. Not a 1-1/2.
    [emoji4]

    And not trying to beat you up, but several times I've heard you say "box was at __ so suction pressure should have...
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    Ice, the QC-0 cartridge for the Sporlan Q valves...

    Ice, the QC-0 cartridge for the Sporlan Q valves makes an 1/8 ton capacity for all refrigerant except R22 (qc-0 does 1/4 ton for r22) I've used it with good success to replace cap tubes and small...
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    Hmmm that must be why our install department only...

    Hmmm that must be why our install department only uses hard drawn copper, LOL
  17. Sticky: Condolences. Very sorry to hear this.

    Condolences. Very sorry to hear this.
  18. The condenser coil can hold some refrigerant as...

    The condenser coil can hold some refrigerant as well as the liquid line. But during high ambient conditions, you may find the refrigerant has nowhere to go and backs up into condenser coil and...
  19. If you register on Emerson's web site (Emerson...

    If you register on Emerson's web site (Emerson owns Copeland I believe) you can look up the OPI online product information. You search the condensing unit model number, then look up the drawing for...
  20. 600171

    600171
  21. I looked it up, 8.8# pumpdown capacity

    I looked it up, 8.8# pumpdown capacity
  22. You may be dealing with the classic Norlake...

    You may be dealing with the classic Norlake undersized expansion valve [emoji15] don't quote me on that haha. Sometimes you can tighten the powerhead a couple more turns and get a little more flow...
  23. 13 lbs of refrigerant should be plenty for that...

    13 lbs of refrigerant should be plenty for that little receiver, and likely overcharged.

    MOP powerhead is not the limiting factor at an 11# suction.

    I would check for a quick connect that...
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    If the door has a window, the cord going to it is...

    If the door has a window, the cord going to it is for the two heaters in the window.

    I have also seen some doors that were made of wood instead of foam, and have a heater around the inside of...
  25. Our experience with the DTAV40 has been the same....

    Our experience with the DTAV40 has been the same. Neither LED will be on. System stuck in refrigeration mode. Flipping pins out won't put it in defrost. Reset power, works fine for a few...
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    I'm not worried about the elbows, I'm more...

    I'm not worried about the elbows, I'm more perplexed how they ran a 3 phase unit with two wires! That's ingenuity!

    Honestly the elbows may cause some pressure drop if they are not long radius,...
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    Yes in several circumstances on Q models I have...

    Yes in several circumstances on Q models I have had to drill holes. It barely barely fits, you have to ream out one hole in back panel to move it over so it doesn't rub.

    S models usually not as...
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    I was under the assumption the head pressure gets...

    I was under the assumption the head pressure gets to 400 now because OP didnt evacuate the system after replacing compressor.. guess that's a harsh assumption!! Sorry

    In all honesty with box at...
  29. Thread: WTF Randell

    by trippintl0
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    Yep, last time I did one I think I melted the fan...

    Yep, last time I did one I think I melted the fan blade too.
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    Based on your last reply, I disagree that the...

    Based on your last reply, I disagree that the compressor is bad. Reason I said amp draw sounds wrong is because you said each heater is 1.3a with 4 heaters, but total amp draw is 3.4. Just fyi, 1.3...
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    1.3a per heater x 4 and your total amp draw is...

    1.3a per heater x 4 and your total amp draw is 3.4, sounds a little off

    That's an interesting way to condemn a compressor, because say if you're txv was restricted, your head pressure wouldn't go...
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    Also evaporator snowing over means they are...

    Also evaporator snowing over means they are leaving door open too much. Make sure the door shuts good. Make sure gasket seals well as well as the door sweep.

    In high traffic you may need 6x45...
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    Typically a 3hp is paired with the 12000btu...

    Typically a 3hp is paired with the 12000btu freezer 3 fan evaporator. That 315 condensing unit does like 11,700btu at 90f ambient at -20sst. That 4 fan coil if it's an AE46 does 16,400 minimum, and...
  34. Thread: WTF Randell

    by trippintl0
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    Cold rails can be leak tested by isolating and...

    Cold rails can be leak tested by isolating and brazing lines shut with an access valve and doing a pressure test with nitrogen.

    As far as repairing them, no. You cut into the foam it's pretty...
  35. Thread: WTF Randell

    by trippintl0
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    Edit: obviously no solenoid in condensing unit...

    Edit: obviously no solenoid in condensing unit area?

    Interesting! If this is a pretty new unit, I'd talk to the factory. They might extend warranty if it really was built wrong.

    If it is an...
  36. Thread: WTF Randell

    by trippintl0
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    So you're suggesting that Randell miswired the...

    So you're suggesting that Randell miswired the thermostat from the factory, which means the unit was freezing up from day 1, and either the owners didn't care enough to call for service, or they did...
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    Never dismiss the possibility that it never...

    Never dismiss the possibility that it never actually worked very well. You may be fighting a design issue rather than a component failure. It sounds like intermittently, system load is low enough...
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    Its a trick question. Better to purge - less...

    Its a trick question. Better to purge - less energy wasted running vacuum pump reduces carbon footprint. Next best option is anything below 20inHg.
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    Remember too I'm pretty sure an LAC-4 it's only...

    Remember too I'm pretty sure an LAC-4 it's only good up to 2.5hp. At 3hp you probably want the LAC-5. I could be wrong on that though. Last time I calculated it, it was borderline, and I always...
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    And I should clarify: I've added bigger fans to...

    And I should clarify: I've added bigger fans to OTHER brands units but never the Randell mullion coil evaporators. To compare, the Delfield mullion evaps used a 5.5" blade on each motor on old...
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    I just think the fan blades are so little they...

    I just think the fan blades are so little they don't move much air. Speed is ok. I don't really recommend modification, not sure there is room for bigger motor anyways. That would be a last resort.
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    Maybe the txv is flooding, but EPR slowing it...

    Maybe the txv is flooding, but EPR slowing it down enough and it is boiling out at the SST 15f.
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    Obviously you have confirmed proper fan motor...

    Obviously you have confirmed proper fan motor rotation and blade orientation, correct?

    You can still check and adjust superheat on an EPR multi circuit setup. Just a PITA because you need evap...
  44. If you're really looking for rapid pull down,...

    If you're really looking for rapid pull down, next time get the condensing unit with a receiver and put a TXV on it.

    Changing a condensing unit but not the cap tube is questionable.

    Drier...
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    Its all good I've done the same thing,...

    Its all good

    I've done the same thing, searching and reading through the archives, it'd easy to forget the age of thread and make a post! Especially on a topic I might be passionate about!! ...
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    Thread is over two years old. Yet I feel...

    Thread is over two years old.

    Yet I feel myself getting pulled in too![emoji12]

    The thread is on indoor self contained units. So headmasters doesn't really apply.

    Indoor units also...
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    Probably out of refrigerant.

    Probably out of refrigerant.
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    I hate black moisture indicators on sightglasses....

    I hate black moisture indicators on sightglasses. It's my pet peeve. Once I quoted a big job, which got approved. Part of quote was to replace sight glass due to burned moisture indicator. Well,...
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    Well,,, I was always taught that the breaker is...

    Well,,, I was always taught that the breaker is the primary safety device. If the disconnect happens to have fuses as well, they should be a higher amperage than the breaker. It would suck to keep...
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    Well yeah you're right, I have replaced some...

    Well yeah you're right, I have replaced some without needing adjustment, but I check at least! You're right on ice machines. Reachins, especially like heatcraft coils with field installed txvs,...
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