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  1. Replies
    7
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    253

    I always add a tee on the suction and liquid if...

    I always add a tee on the suction and liquid if not provided on the line just to see what was/is going on. Sounds like you have a nasty restriction. GL
  2. Replies
    10
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    1,856

    Have the same issue, mine is showing trips on...

    Have the same issue, mine is showing trips on LDT, A/H is a TAM7 but no alerts on the boards?
  3. Replies
    9
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    922

    Need any one in SW Fl?

    Need any one in SW Fl?
  4. Thread: What Voltage

    by Tech83
    Replies
    19
    Views
    680

    208/230 3ph & 460/480 3 ph. Just watch your...

    208/230 3ph & 460/480 3 ph. Just watch your incoming voltage for setting your secondary outputs. A lot of units made @ Carrier are universal so they set there units up for 460. Most EC produce 480+....
  5. Replies
    22
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    1,357

    Don't forget about TD across the coil. Goes along...

    Don't forget about TD across the coil. Goes along the same lines as what Todd is saying.
  6. You might be surprised just how many times the...

    You might be surprised just how many times the HVAC Engineer, and thus the Controls Engineer, specifies this and that. Which does NOT satisfy what the customer expects or wants. BUT ... we've gotta...
  7. Replies
    19
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    619

    Most package units have a weigh in factory charge...

    Most package units have a weigh in factory charge on the name plate for both stages.
  8. Replies
    19
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    619

    What was the tonnage on your 2 stage unit. Did by...

    What was the tonnage on your 2 stage unit. Did by chance you recover both stages at once? Leaving only vapor in both stages?
  9. Replies
    70
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    3,027

    1, never add liquid to low side of a system. You...

    1, never add liquid to low side of a system. You can slug a compressor and kill it. Agree to a point, you can't just open the low side and walk away, you will damage the compressor. Monitoring and...
  10. Replies
    23
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    1,175

    I'm gonna have to disagree with this. X2 ...

    I'm gonna have to disagree with this.

    X2

    This is Resy AC not Refer AC. 100 % of our units with TXV are charged per Sub Cooling, and backed up (hopefully with wb, db & sh ) temps.
  11. Sound like the person that called didn't have...

    Sound like the person that called didn't have there story right or fixed it themself. (ooops someone shut wrong breaker off). Trying to cover their behind!
  12. I find far too many guys being thrown out into...

    I find far too many guys being thrown out into the field without the VERY FIRST clue about what to do, and their supervisors seems complacent enough to tolerate whatever chaos they produce.

    X2
  13. Replies
    30
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    1,210

    Agree allen38, Most techs I see now are bigger...

    Agree allen38,
    Most techs I see now are bigger flame = quicker job, Most tech's I see don't have the knowledge of finese and letting that little bit of heat from the torch do the work for them, by...
  14. Replies
    30
    Views
    1,210

    I find leaks all over Aaons. Also guaranteed to...

    I find leaks all over Aaons. Also guaranteed to find them on the top of a Carrier RTU double row condenser coil where the 1/8" zip tie deteriorated and springs out the coil where then it starts to...
  15. Replies
    51
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    2,239

    Thank You guys you bring up some good points for...

    Thank You guys you bring up some good points for bettering customer relations, having a hard time looking at a customer telling them thier ?-13 is 13months old , but will cost you $$$ to change.
  16. Replies
    5
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    480

    Depending on what update you ran. I think you had...

    Depending on what update you ran. I think you had to do step ups from 4.1, 4.15, 5.0, 5.1 etc... I locked up 2 of them this way, during a update thinking they were updated to a certain version. I was...
  17. Replies
    35
    Views
    1,558

    Sorry you made me stop and think at renovation....

    Sorry you made me stop and think at renovation. Were s/a grills covered with new flooring? were walls removed and s/a removed, blowing into wall cavity or capped. Count the runs downstairs and verify...
  18. Some companies would over size the indoor coil by...

    Some companies would over size the indoor coil by 1/2 ton for better dehumidification, but we always installed the metering device sized for the outdoor unit. If all else fails with mismatched...
  19. Replies
    18
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    1,012

    Just an FYI along the POE lines. Replaced a...

    Just an FYI along the POE lines. Replaced a (R-22) Six yr old grounded out original compressor last week in a Fridgidare. The original had mineral oil in it, the new one Copeland sent out had POE...
  20. Replies
    15
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    782

    Down here in Fl we use the Honeywell 8*** for...

    Down here in Fl we use the Honeywell 8*** for snowbirds that aren't that much worried about temp but humidity while they are up north. We set the temp at 76' and 65 % on humidity. On systems that use...
  21. Replies
    47
    Views
    2,062

    Not for nothing but I agree with everyone about a...

    Not for nothing but I agree with everyone about a possible restriction, I think that the C/U has a split coil. Outside and inside might look clean but between them could be packed full of dirt and...
  22. Replies
    15
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    1,296

    I have had installers place the wrong drives on...

    I have had installers place the wrong drives on the wrong motor and seen this. Factory sends drives to shop, shop ships them out, installers install them, pipe fitters set pumps. NO ONE LOOKS AT THE...
  23. Replies
    16
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    1,105

    And makes it more difficult for us proffesional...

    And makes it more difficult for us proffesional to diagnose "HACK" when they can't get it working correctly.
  24. Thread: Brutal!!!!

    by Tech83
    Replies
    74
    Views
    3,905

    I have heard of guys putting solenoid valves that...

    I have heard of guys putting solenoid valves that allow water to cool the condensers when the unit is running. kinda like a garden sprinkler line around the top of the unit to mist the air. I have...
  25. Thread: Brutal!!!!

    by Tech83
    Replies
    74
    Views
    3,905

    two things I learned with Trane units. 1) split...

    two things I learned with Trane units. 1) split coils suck. outside clean inside packed solid. 2) after head pressure rises "wax" that holds metering devices on evap coil break down. hence blow...
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