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  1. Replies
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    Thank you all for your replys!

    Thank you all for your replys!
  2. Replies
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    Milk cooler temp dial, 1 thur 8.

    Temperature thermostats on small milk coolers, that store 8 oz cartons of milk, are always marked ' 1 2 3 4 5 6 7 8 '. Which is the coldest setting?
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    It is cylindrical canister, but it about 3" tall.

    It is cylindrical canister, but it about 3" tall.
  4. Replies
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    As stated, no model #, no pic, tonnage is...

    As stated, no model #, no pic, tonnage is estimate. Buzzing is on the RTRM circuit board (board components are integral to the board, not separately replaceable.
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    Trane RTU RTRM board buzz.

    I don't work on Trane Rtu's, but I have one that I looked at today. I don't have a model number (sorry), but it's a 7 ton unit, about 8 yr old. When I arrived, I found the blower fan starting and...
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    Thanks for the replys. Just bought a data logger...

    Thanks for the replys. Just bought a data logger and was putting it to good use.
  7. Replies
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    Cut in/out temps on refrigeration.

    Have a reach in refrigerator and a walkin refrigerator that I took accurate readings on recently.

    Cut in temp on the reach in = 33 degrees, cutout=43 degrees. (10 degree diff) 10 year old box....
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    Did you ever learn the cause of the low oil...

    Did you ever learn the cause of the low oil alarms?
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    That is a good point about the poor design of the...

    That is a good point about the poor design of the on/off switch. They probably retired an expert design guy and then Testo and hired a new lower wage 22 year old college grad, still wet between the...
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    Univentilators ( schools)

    The Irwin 9 in 1 has the square drive bit which I use to open the hex bolts on univentilators. Otherwise, I need a allen wrench set which is never handy on the job. But I carry the 9 -1 all the time...
  11. What original poster Skoonen said,,,...

    What original poster Skoonen said,,, agreed!!!!!!!!!!!!.

    Anyone here who has not bought hundreds of dollars of tools from Harbor Freight in the past 10 years is lying or foolish.

    I own ALL...
  12. Replies
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    Veto

    I've owned dozens of bags. I recommend the Veto to the organized mechanic. The days of scooting loose tools in the bottom of the bags are at an end. I own two different style Veto's, ( carpenters...
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    Testo Inspection Scope 318-V

    I just got this scope tonight. I love it. The little video screen is only 2.5 inches but the views are impressive and in color ! I can see my entire living room in clarity and I can see the close up...
  14. Thread: HVAC Tent

    by lugnut
    Replies
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    2,029

    hvac tents

    For HVAC tents,

    https://www.nettechdi.com/eserv/eclipse.ecl?PROCID=WEBDISP.WOEB.MAIN&ID~1=742&ID~2=754&ID~3=756&CLEV=5&PLEV=1&QLEV=1&PN=50596&ITEM.NO=1&PN.CT=2&TRACKNO=J1600121975&BANNERID=

    or...
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    SH, I guess I will have to check that on Monday...

    SH, I guess I will have to check that on Monday morning, but right now its any ones guess. However the running pressures are always within the manuals specs, both evap and condenser. And I realize...
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    First timer on chiller with low oil alarms.

    I have a Trane RTHA Centravac Series R, helical rotary type, water cooled chiller. (I got all that from the owners manual, whew!) A very attractive looking machine. Holds 605 lbs of r22 and 70...
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    I tried the snaping of the wrist after your post,...

    I tried the snaping of the wrist after your post, but still did not fix it.

    I do own a digital one, but Im not ready to give up my sling just yet.

    And after Hvacrjones post, I did email the...
  18. Replies
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    Being sling devices, I slung them plenty,,, it...

    Being sling devices, I slung them plenty,,, it has no affect. I have not tried heating them yet.
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    I iced them but that did nothing to fix them. A...

    I iced them but that did nothing to fix them. A set of new glass bulb meters cost $24. As much as I prefer the simplicity of a sling, that is just to much to spend on a new product ($60) that I store...
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    I hadn't considered 134/404a gauges. But I guess...

    I hadn't considered 134/404a gauges. But I guess that will work.
  21. Replies
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    993

    YJ only has 404a/410 gauges too.

    YJ only has 404a/410 gauges too.
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    404a gauges hard to read.

    I just bought a manifold with r404a 410 gauges. The suction guage is worthless in the 10 psi range. Then scale is too small to see 1 psi movement. Who sells a easy to read 404a gauge?
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    To klrogers, Yes, I have the 3 legged stool...

    To klrogers,

    Yes, I have the 3 legged stool from duluthe. On a membrane roof, the legs will leave a deep depression in the roof and therefore is not a good choice. And it's not as study as a 5...
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    492

    Thanks for the reply. Now I understand the whole...

    Thanks for the reply. Now I understand the whole procedure! You da man!
  25. Replies
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    492

    Icemeister, cap tube to txv question.

    To Icemeister,

    Ya got no 'contact' info so here goes. The following link has the exerpt, that you wrote, and I pasted here below. The topic was clogged caps on True reach in freezers and how you...
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    Very interesting thread. This "receiver" scenario...

    Very interesting thread. This "receiver" scenario can be seen if you have a situation like I currently have. I have a True reach in freezer with a low slightly low suction pressure (9 psi, instead of...
  27. Replies
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    The reason I happened to know that fact, is...

    The reason I happened to know that fact, is because I am coincidentally trying to get legally get rid of my r22 cans, and was reading the epa stuff recently. I still don't know of any rules for...
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    I see this thread is a year old, however, I am...

    I see this thread is a year old, however, I am compelled to reply;

    "Technician certification is not required for individuals removing refrigerant from appliances in the waste stream. The safe...
  29. Replies
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    Sling psychrometer

    My Bacarrah (?)sling psychometer is ruined after just 1 year. The red spirits inside the thermometers has separated. Why did that happen? They cost too much to let that happen.
  30. Replies
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    no, no, no, pressure testing is way to go.

    John Dalton, (skip right to last paragraph for digest of this post)


    I enjoy reading your interesting and well thought out posts, however, please allow me to disagree without being...
  31. Thread: amp measurment.

    by lugnut
    Replies
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    2,161

    Yesterday, I did close the suction valve and...

    Yesterday, I did close the suction valve and bleed the low side hose back into the system. Worked great!

    The vacuum problem on startup, was occurring day before yesterday. But yesterday, the...
  32. Thread: amp measurment.

    by lugnut
    Replies
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    2,161

    A quick background answer for ididntdoit. ...

    A quick background answer for ididntdoit.

    When this compressor was replaced 6 years ago, the service tech did not have a scale and did not weight it in. When I got the call, I suppected an...
  33. Thread: amp measurment.

    by lugnut
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    2,161

    No more problematic suction vacuum!! Today, the...

    No more problematic suction vacuum!!
    Today, the system is running better since yesterday. Yesterday I was seeing a vacuum of 10" on the suction line for 10 min at each startup, but, today I do not...
  34. Thread: amp measurment.

    by lugnut
    Replies
    17
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    2,161

    Got'cha, printed it off for tomorrow. Thanks

    Got'cha, printed it off for tomorrow. Thanks
  35. Thread: amp measurment.

    by lugnut
    Replies
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    2,161

    No, I just learned about CPR's this weekend. ...

    No, I just learned about CPR's this weekend. Adjust it, OMG, I'm so young, it takes me hours to do what you do in minutes. I'm willing to try, and the customer won't fire me if I fail, lol. But if...
  36. Thread: amp measurment.

    by lugnut
    Replies
    17
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    2,161

    I need to point out that somewhere in the last 30...

    I need to point out that somewhere in the last 30 hours, I discovered and replaced a bad condenser fan motor. I did not see this 2nd condenser motor until way late in my diagnosis, beginners mistake...
  37. Thread: amp measurment.

    by lugnut
    Replies
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    2,161

    Thats a great tip! You don't find tips like that...

    Thats a great tip! You don't find tips like that in the book. Thanks!

    You can bet I will use that tip tomorrow when I top off the oil in this unit. I left my hoses on overnight and now I can use...
  38. Thread: amp measurment.

    by lugnut
    Replies
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    2,161

    Can't charge by amps. :confused: Dang it, this...

    Can't charge by amps. :confused: Dang it, this stuff just gets harder, the more you learn. Tomorrow I will recover, then charge 19 oz in, using my short manifold hoses.

    Thats 17 oz on the...
  39. Thread: amp measurment.

    by lugnut
    Replies
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    2,161

    By golly, I think you hit the nail on the head! ...

    By golly, I think you hit the nail on the head! I must be amp'ing the wrong wires. DUH!! If you had'nt of told me that, I would have figured it out in a day or two, maybe while I was installing the...
  40. Thread: amp measurment.

    by lugnut
    Replies
    17
    Views
    2,161

    amp measurment.

    Im still working on my first True 2 door reachin freezer with copeland compressor, KAMB-007e-CAA-800. It is keeping the cabinet at -10 to zero, but the compressor amp draw is too low, at 6.5 amps...
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    Withdrawn

    withdrawn
  42. Replies
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    Good news. I found my problem today! And by the...

    Good news. I found my problem today! And by the way, I drilled a hole and learned the coil drop is only .4".

    I've solved this problem today, by discovering (via pressure readings) that all 3...
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    the drop is across both coils.

    the drop is across both coils.
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    5,110

    yes, heating and cooling coils.

    yes, heating and cooling coils.
  45. Replies
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    5,110

    Trane air handler. 1 hp blower, 1850 cfm, water...

    Trane air handler. 1 hp blower, 1850 cfm, water coil.
  46. Replies
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    1,503

    Step drill by Irwin not acceptable cause it leave...

    Step drill by Irwin not acceptable cause it leave a clean drilled hole that won't grab the hole plug.

    The hollow punch'es are not what I seek either.

    The punch I need has a 1/2" straight...
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    Is there a rule of thumb for air duct static...

    Is there a rule of thumb for air duct static pressure drops across a coil? Is 1.5" pressure drop excessive? If so, are obstructed coils easy to visually identify?
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    I looked at both of those. The grainger one is...

    I looked at both of those. The grainger one is not a prick punch. The other is a transfer punch.

    If I take a 1/2" straight (not tapered) pin punch and grind a point on the end of it, then I...
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    Where can I find a 1/2" straight shaft, prick...

    Where can I find a 1/2" straight shaft, prick punch. I want to punch sheet metal holes for pitot readings. I have seen them before, but now can not locate even 1 on the internet. They are about 12"...
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    Im looking at a Veltron Series 1500c low pressure...

    Im looking at a Veltron Series 1500c low pressure differential sensor, connected to a 20,000 cfm air Trane handler. The sensor is reading 0.00024493" WC but it should be reading 0.16" WC. Is this a...
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