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Type: Posts; User: RedSafety

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  1. Replies
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    There's your problem! The satellite dish is aimed...

    There's your problem! The satellite dish is aimed at the building! Move it back or up and that'll fix everything!
  2. Replies
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    762

    Recovery machine ($900 new) and high end flare...

    Recovery machine ($900 new) and high end flare tools are like new. Flare tool used only once. Nitrogen and recovery tanks are traded in. Not going to pay new price for them. Pipe threader is nearly...
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    194

    The aquastat looks more like the safety limit...

    The aquastat looks more like the safety limit instead of thermostat. Adding a well in the outlet sounds like a winning proposition while that line is out of the loop. Getting close though. 56...
  4. Replies
    4
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    194

    Dual temperature boiler thermostat?

    We used to have two boilers, one for heating and one for freeze protection. Heating was set to 130 degrees and freeze protection to about 60. The old boiler we used for freeze protection died and...
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    762

    Basic Essential Tools and Equipment

    My boss passed away in May. His widow is looking at selling some gear and the business. If I can find someone (Master license) to assist part time, cover permits, and offer advice/guidance, I might...
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    427

    Yes, dual centrifugal fans. Yes poor install, but...

    Yes, dual centrifugal fans. Yes poor install, but not sure how to fix the install. Maybe move the coil to the vertical position to the right? Build some space between the fans and the coil? I...
  7. Replies
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    427

    If it was running backwards there wouldn't be...

    If it was running backwards there wouldn't be much air flow.

    10 ton, seven 12" round ducts off the system.

    If the pressure drop is within specs (I just found the data plate so contacting the...
  8. Replies
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    427

    Pressure Drop Across Coil

    Working on a monster 10 ton system with poor airflow. And my first use of a manometer, a CPS SOM-100. Ducts' flow range from 0 fpm to right at 1,000 fmp (Testo 405i, another fresh experience). The...
  9. Replies
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    1,360

    Manometer use?

    Got down as far as I could with the testo 405i anemometer and finding the low flow vents on the monster system I'm working on. Starting to disassemble this tree monstrosity from the vents back to try...
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    245

    Acetylene Regulator Recommendation?

    Was given a nice torch set today, but the acetylene regulator needs to be replaced. Everything else is in top shape. Looking at either a Victor or Uni-Weld. Both are similar price. Which is the...
  11. Replies
    55
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    2,082

    Unfortunately, right now I'm over $1,000 behind...

    Unfortunately, right now I'm over $1,000 behind on my bills because my wife lied to me. She has some money put away and agreed to use it for our new mattress. AFTER buying it, now I have to pay for...
  12. New ballasts don't last very long, in my...

    New ballasts don't last very long, in my experience. Cheaper to pull them out and direct wire in ballast by-pass LEDs. Personally, I don't waste my time replacing them anymore.
  13. Replies
    55
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    2,082

    That's a nice manometer. But I believe my first...

    That's a nice manometer. But I believe my first step is to find out why some of the existing ducts aren't flowing air. That's going to take some time as school is in session.
  14. Replies
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    2,082

    No manometer.

    No manometer.
  15. Replies
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    470

    There is no room for any more returns. However,...

    There is no room for any more returns. However, there is a 10" flex over to the side. It might be a 12. No idea where that leads to. I might be able to add a small return into the room on the side of...
  16. Replies
    12
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    470

    There is only a box below the air handler with...

    There is only a box below the air handler with two 24x24 filter grills. No problem with return air. I think there are only a few 8" or 10" trunks off the plenum above the air handler. I suspect I...
  17. Replies
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    2,082

    That makes sense. Also the pressure is varying a...

    That makes sense. Also the pressure is varying a few PSI. Therefore it's also possible the temperature variations aren't keeping up with the pressure variations. Possible that the pressure drops, but...
  18. Replies
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    2,082

    When the actual temp is lower than saturated...

    When the actual temp is lower than saturated temp, that's called subcooled. I've seen it up to 2.5 degrees below saturated. I can't explain it. Just what the pressures and temps say. And this system...
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    470

    Only about 10 times what I can afford. Not that I...

    Only about 10 times what I can afford. Not that I can even really afford that either.
  20. Replies
    12
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    470

    How To Do Duct Air Flow Measurements??

    I'm fighting with a 10 ton heat pump in another thread and after some repairs I'm finding a 27 degree Delta T across the coil, too low air flow. In checking out some of the supply ducts I found one...
  21. Replies
    55
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    2,082

    *Heat pump is NOT used as we converted these to...

    *Heat pump is NOT used as we converted these to use the water boiler system
    *dirty filters, dirty coils. Filters replaced and coil cleaned As Stated Earlier
    *Blower rotation? Its blowing in the...
  22. Replies
    55
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    2,082

    Yes, the distribution tubes. 837083

    Yes, the distribution tubes.

    837083
  23. Replies
    55
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    2,082

    Too many things going one, including safety and...

    Too many things going one, including safety and security issues. Just got back to the system. Neither interior TXV is responding to hot water. 2 TXVs in parallel. Temps are backwards.

    Liquid line...
  24. Replies
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    808

    Not going to work on a 70 ton water chiller. It's...

    Not going to work on a 70 ton water chiller. It's definitely in the coils. One is up in the corner of the vertical coil. At least one major one is in the middle of the horizontal coil. Big Blue isn't...
  25. Replies
    55
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    2,082

    Moving lots of air. and why would there be so...

    Moving lots of air. and why would there be so much temperature difference between the two TXVs from the same feeder circuit? The bulbs are inches away from each other, only about 3-4 inches from the...
  26. Replies
    55
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    2,082

    8.7 degree difference between the two TXV...

    8.7 degree difference between the two TXV circuits. Only about 16.7 DT across the inside coil.
  27. Replies
    55
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    2,082

    One of the two inside TXVs was evidently stuck...

    One of the two inside TXVs was evidently stuck wide open. One had condensation and the other was warm. Now my gauges are leaking. Liquid is bleeding off into the compound gauge, per sight glass....
  28. Replies
    13
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    808

    Tried the soap bubbles in the general location my...

    Tried the soap bubbles in the general location my leak detector went off. No luck. This condenser is almost 2 inches thick, four layers. I suspect the leak is buried deep inside the fins. Boy, I'm...
  29. Replies
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    2,082

    Ambient was about 95. Filter was filthy...

    Ambient was about 95.



    Filter was filthy after a major cleaning in the area. Filter grill is on the ground. Yes, touching the floor, and LOTS of foot traffic. However, these readings are after...
  30. Replies
    55
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    2,082

    75.0 to 75.2 degrees across 4 different...

    75.0 to 75.2 degrees across 4 different thermometers. Virgin tank of R410A in the same room, 218.1 PSIG. Looks good to me.
  31. Changeout/subs?

    Changeout/subs?
  32. Replies
    55
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    2,082

    Yup, most likely. If the gauges were off, then...

    Yup, most likely.
    If the gauges were off, then the numbers would be off for all the other units I've checked, but they are not. The other unit next to it clearly shows low charge, 15 degrees SH, 7...
  33. Replies
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    2,082

    about 2 degrees subcooling on vapor side In...

    about 2 degrees subcooling on vapor side

    In other words, -2 degrees of superheat.
  34. Replies
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    808

    Just saw a Tru Pointe at the local pawn shop for...

    Just saw a Tru Pointe at the local pawn shop for $200. Looked in good condition. The Tek-Mate should get me close.

    They also had a torch set for $110. Only thing usable there was the tanks for...
  35. Replies
    55
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    2,082

    Quote Originally Posted by RedSafety View Post...

    Quote Originally Posted by RedSafety View Post
    And despite being a heat pump, no insulation on the liquid line!



    Maybe because the installation manual specifically says it must be insulated?...
  36. Replies
    55
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    2,082

    Low charge? Because the SC is low? Then why is...

    Low charge? Because the SC is low? Then why is the SH also low? I added 2 lbs that I shouldn't have added because I thought the same thing initially, but zero change in SC and SH.
  37. Replies
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    1,020

    Please tell me the exhaust vent only looks like...

    Please tell me the exhaust vent only looks like its going downhill!

    First one is like my HVAC boot camp partner's AC. Big name HVAC company put the condensate drain on the blocked off connection...
  38. Replies
    13
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    808

    Ultrasonic Leak Detector

    Looking at an ultrasonic leak detector for our 70 ton chiller. One circuit is completely dead, oil all around under the condenser coil and some evidence of a small leak up above. Could just be from...
  39. Replies
    55
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    2,082

    Indoor temps, about 74 DB. Adjustable txv? Can't...

    Indoor temps, about 74 DB.
    Adjustable txv? Can't see it well enough to tell.
    Airflow? Delta T just under 17 degees. Cooling well, but sight glass is gassed over.
    Model number GSH101203AD

    It...
  40. Replies
    55
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    2,082

    No SH, low SC, Suggestions?

    10 ton 3 phase Goodman R22 heat pump. No superheat, about 2 degrees subcooling on vapor side. 24-26 amps on the compressor, 30 rla. It's a bugger to get inside the unit, AND it's not even 1' away...
  41. Replies
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    1,163

    My plan is to fine tune my resume/cover letter...

    My plan is to fine tune my resume/cover letter and post it on skill at, indeed, and at the local UAW. Hopefully someone decent will want to invest in an apprentice.
  42. Replies
    12
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    1,163

    This is the first time I've had to deal with the...

    This is the first time I've had to deal with the son. I absolutely am NOT ready to go it alone. At a minimum I need to find a master licensed HVAC tech who needs occasional help with installs and...
  43. Replies
    12
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    1,163

    I'm trying to help out the widow with her...

    I'm trying to help out the widow with her husband's business. But I won't knowingly do a poor job.

    I've only been doing this for a few months, but seem to know much more than the boss's sons. I...
  44. Replies
    12
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    1,163

    Too late. Had a system that needed replacing...

    Too late. Had a system that needed replacing right away. Triple digits and an 18 month old in the house, no cooling for 3 days. Fought with the boss's pump to pull a refrigerator down to 500 microns,...
  45. Replies
    4
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    662

    Fieldpiece VP67 Oil Change Question

    Well, my boss's vacuum pump is officially dead. Will not pull a semi deep vacuum reliably. Can take hours to get down. Oil blowback. So looking at the Fieldpiece. Will invest the money for a new 6cfm...
  46. Replies
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    1,430

    1960s water chiller. I only do the condenser fan...

    1960s water chiller. I only do the condenser fan motors. Ordered in a second one last week. Should be here Tuesday.
  47. Replies
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    863

    I had a unit that failed to fire up. Turns out it...

    I had a unit that failed to fire up. Turns out it was a blown fuse, likely from the factory. Micro microwave style fuse, 3.7A as I recall. Had to special order it from Ebay as NOBODY local had it.
    ...
  48. Replies
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    1,263

    Interesting. As a noob to HVAC, but with a good...

    Interesting. As a noob to HVAC, but with a good understanding of HVAC basics and the science behind it, I would ask the same questions Ehsx asks if the subcooling and pressures looked good, but had...
  49. Replies
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    1 Stinkin' Inch?

    No compressor. Started checking wires, identifying what wires went to the compressor, where they connected to the start and run capacitors, etc. Saw this was disconnected and burnt (see lower spade...
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    1,460

    On the system I was going to pump down, it would...

    On the system I was going to pump down, it would have been a major teardown to get to them. Very user and technician UNfriendly design. On the other systems I've worked on, yes, a meter would be a...
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