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  1. #1

    Going to be a fun week

    Building has 52 50 ton trane RTUs. Roof is standing seam.
    Click image for larger version. 

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    Had a in house maintenance guy.
    Here is today's unit
    Needs some electrical tweaking
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    Click image for larger version. 

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    Along with this
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    A couple of these
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    4 condenser fan motors
    Few blades
    Box of assorted other stuff
    Also unit needs nu brite bath for evap and cond. Oh yeah no water on roof. Been slow this is great!!

  2. #2
    Would be a great application for chilled water but that stuff is pricy hahaha

  3. #3
    Join Date
    Dec 2007
    Location
    Soudern Kal-e-phone-e-ya
    Posts
    264
    wow.....how big is this building?

    That is alot of RTU's!

  4. #4
    Quote Originally Posted by Mikeylikesit View Post
    wow.....how big is this building?

    That is alot of RTU's!
    I don't know really. Coworker said 1/8x1/4 mile according to his odometer haha. I have not seen it all yet we are on a lower level. Had a 45ft JLG about full stretch to set the contents of our trucks on it.

  5. #5
    Join Date
    Dec 2005
    Location
    Cincinnati, Oh
    Posts
    3,933
    don't you just love when the flames burn off the wiring schematic?
    "Better tell the sandman to stay away, because we're gonna be workin on this one all night."

    "Dude, you need more than 2 wires to a condenser to run a 2 stage heatpump."

    "Just get it done son."

    Dad adjusted

  6. #6
    Would be glad to have the flame roasted schematic instead of the massive wiring harness and all the wiring within a 1 foot radius around the two flame throwing transformers that is destroyed.

  7. #7
    Join Date
    May 2011
    Location
    Oklahoma
    Posts
    286
    What's your technique for setting that compressor in place? I have 8 CSHAs to replace on a rooftop and was denied a crane... I have a 40' man lift to get them on the roof but from there is looks like it might be pure muscle.

  8. #8
    Quote Originally Posted by matt1124 View Post
    What's your technique for setting that compressor in place? I have 8 CSHAs to replace on a rooftop and was denied a crane... I have a 40' man lift to get them on the roof but from there is looks like it might be pure muscle.
    Here is 3 ways:
    1. He-man that thing in there
    2. A couple 2x4s making two ramps, roll it up into it.
    3. Get straps or chains and go over the top of the unit and hook on the frame on the other side. I try to have it just long enough that a loop of the strap just barely hangs over by the electrical panel. Then I hook a come a long/chain fall/chain hoist to it and lift it in there.

  9. #9
    On #2 I forgot to mention use a hand truck to roll it in

  10. #10
    Another unit:
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    Wiring harness in return section caught on fire. Also note the high efficiency filters.

  11. #11
    Join Date
    Apr 2011
    Location
    Coastal Maine
    Posts
    565
    Quote Originally Posted by matt1124 View Post
    What's your technique for setting that compressor in place? I have 8 CSHAs to replace on a rooftop and was denied a crane... I have a 40' man lift to get them on the roof but from there is looks like it might be pure muscle.
    If the building manager will allow it, we use a Genie Duct Jack to get the compressor up to the level of the unit. Then there is less He-Man stuff to do to get it into place. But you have to have a crane or a boom truck to get the duct jack to the roof. We use this technique when the RTU is too far from the edge to use a crane.

  12. #12
    Quote Originally Posted by meplumber View Post
    If the building manager will allow it, we use a Genie Duct Jack to get the compressor up to the level of the unit. Then there is less He-Man stuff to do to get it into place. But you have to have a crane or a boom truck to get the duct jack to the roof. We use this technique when the RTU is too far from the edge to use a crane.
    Click image for larger version. 

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    If the pic is worth a hoot we also have a hydraulic cart similar to C that is awesome for heavy lifting. When the flat plate is oiled 06Es will glide off. But... He has no crane.

  13. #13
    Also if it is a flat roof. A engine hoist can be brought onto a roof in manageable pieces. We turned the boom around on ours and counterweight the base. It works okay not the safest way if you don't have enough counterweight.

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