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  1. The crappy old units died yrs ago, so you don't...

    The crappy old units died yrs ago, so you don't see the weak ones around.

    and the new ones don't seem as well built, the govmt getting in people's way designed them, and homes have a lot of crap...
  2. My tstat runs a whole house dehum in dehum mode,...

    My tstat runs a whole house dehum in dehum mode, independant of a/c.

    But, if I had a trane tstat, they have several now that use pulse width modulation to drive the blower at a lower speed in...
  3. the hole is an overflow if the secondary is not...

    the hole is an overflow if the secondary is not used. you can put a bit of caulk in there to seal it. also, seal up where wires and refrigerant pipes go into unit. and then tape up the breaker hole...
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    scrolls will make a clinking sound if low suction...

    scrolls will make a clinking sound if low suction psi.
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    put pc tape over window, problem solved.

    put pc tape over window, problem solved.
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    could be motor going, or maybe flaky fan relay,...

    could be motor going, or maybe flaky fan relay, sometimes works/doesn't
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    They showed that on one of those u-tube video...

    They showed that on one of those u-tube video shows on tv, so there's probably more out there.
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    rockets should not be fired out your butt crack,...

    rockets should not be fired out your butt crack, either, idiots.
  9. tee hee, "artificial intelligence" was the next...

    tee hee, "artificial intelligence" was the next thread under yours.

    he may have set the humidify by extended run time option- if the rh gets too high, the tstat runs the house 3 degrees cooler. so...
  10. I considered using them once, but was concerned...

    I considered using them once, but was concerned putting naphta mothballs in a confined space w/elec arc.

    they seem to work ok in tool boxes in shop preventing rust. seems you can hardly get...
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    that's the way the engineer drew it on the...

    that's the way the engineer drew it on the plans...
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    oooohhhh, you're being sarcastic?

    oooohhhh, you're being sarcastic?
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    Can't be that big- it fit the van. took out...

    Can't be that big- it fit the van.

    took out one that the old was wider than the new- wouldn't fit into van. I looked up at top of van and co worker said "NO". took one of refer racks loose to get...
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    dual microchannel system--

    did one Friday that was way off from what I would have expected. Had indoor and outdoor mc coils., a/c only system.

    one of techs had been out an did some cleanup work behind the installing co,...
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    how many neighbors heard the shriek?

    how many neighbors heard the shriek?
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    First pic I put on this site was a sears ad-...

    First pic I put on this site was a sears ad- showed the furnace w/duct tape on gas lines and plywood return box.
  17. "how its made" had a segment on a/cs being...

    "how its made" had a segment on a/cs being manufactured. shows that coil being made w/ the glue.
  18. Did one that carefully cut hole through tile and...

    Did one that carefully cut hole through tile and 4" concrete, and came out good. then was told they didn't want hole cut in floor.
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    Today, my normal life is a threat because it...

    Today, my normal life is a threat because it shows I don't need government to succeed.
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    r-22 and propane have similar pressure...

    r-22 and propane have similar pressure relationships, so could not use for 401a. not DOT rated, either, and the internal corrosion issue, too.
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    Trane is the same as well. even plastic will...

    Trane is the same as well. even plastic will sweat if surface temp is below dew point.

    You either need to raise temp of exterior of unit, or lower dew point in space.

    In my part country its...
  22. angle grinder w/diamond blade. you can cut...

    angle grinder w/diamond blade. you can cut thimbles to length w/it as well, then switch to metal cutting blade for motor shafts.

    I like to put one side of register hole even w/grout joint if I...
  23. It might be possible to do a few tweaks in the...

    It might be possible to do a few tweaks in the air handler for your place, and then any low voltage tstat would be an option. would not have to run new wiring in walls of house.
  24. forgot about the cold. had a hot box put the tape...

    forgot about the cold. had a hot box put the tape in to keep it warm. db fabricates easily.

    did metal, too. like no insulation on anything the best since hate fiberglas.
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    wondering the same. was reading and some have a...

    wondering the same. was reading and some have a headset you listen to noise with, the one I picked up works like their gas leak sniffers, has sensor and lights.
  26. I installed many db systems yrs ago. the crap...

    I installed many db systems yrs ago. the crap installs fall apart quickly. and db doesn't like to lay on ground. They do make a db w/rhinocoat-like coating on interior. w/ proper install technique,...
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    had to do update. found the leak in wall...

    had to do update.

    found the leak in wall cavity. the building is masonry, structural. all the steam lines in walls were set into chases.

    there was trough under floor slab the lines ran...
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    my "blue bannana" has been pretty good. I picked...

    my "blue bannana" has been pretty good. I picked up a lesser TIF at yard sale, works decent, but not quite as sensitive as the ZX1, and the sensors don't last as long.


    Picked up a TIF 6600...
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    I was working on a mini Fri and thinking they...

    I was working on a mini Fri and thinking they must drive bucket truck service vans.
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    ditto.

    ditto.
  31. look at the back of your ductulator- they have...

    look at the back of your ductulator- they have generic duct losses for different fittings. as long as the aspect ratio isn't too bad, (turn on narrow side) a radius ell is better than vanes, if the...
  32. Thread: Bendy Air

    by billygoat22
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    make up your mind where you're going, already.

    make up your mind where you're going, already.
  33. OP didn't say where in country he lived? In...

    OP didn't say where in country he lived? In central Va, design for 75 indoor when 95 outside. so if 100 degrees out, should only expect 80 inside.

    but if its sized well and hot out, will likely be...
  34. Did n coil last week in place of a coil. noted...

    Did n coil last week in place of a coil. noted that there is a dead zone on one side coil where baffle redirects air into odd shape of n coil. In manual states you can hang one side over edge furnace...
  35. a pro 9000 can do a signal for dehumidification...

    a pro 9000 can do a signal for dehumidification thru NO/NC contacts in interface. it can also do outdoor temp as well using same od sensor 8000 would use. The one I have is communciating (tstat to...
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    for a house or commercial bldg? you could do 3...

    for a house or commercial bldg? you could do 3 ton and 3 1./2 ton for space and stage them off one tstat.
  37. it depends on what particular tasks as well. I do...

    it depends on what particular tasks as well. I do service/ install on ht pump a/c, geo, hot water and steam boiler, generators, package units, oil and gas furnaces. Also have wired up a few houses in...
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    maybe maybe maybe-- if its a motor w/ears welded...

    maybe maybe maybe-- if its a motor w/ears welded to the motor, and oem, and in basement, and straight from van in back door directly to a/h, .... maybe then 30m, the motor basically aligns itself if...
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    you can run it interior to the house. up inside...

    you can run it interior to the house. up inside closet, etc, where won't be out in open.
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    new lineset, do you own first floor as well?

    new lineset, do you own first floor as well?
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    I have to give credit to Dan Holohan on this one-...

    I have to give credit to Dan Holohan on this one- was a case mentioned in one of his books on this issue.
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    The sight glass is ok to be not fully seated...

    The sight glass is ok to be not fully seated open, it could freeze in open position and if someone turns the wrong way first off, could wring the stem off. You can open fully and back off 1/4 turn.
    ...
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    I've only ever done one install of undergorund...

    I've only ever done one install of undergorund ductwork. was pvc coated spiral as well.

    did do a changeout on an old package unit. the "curb" was brick and went down into ground. underground ducts...
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    Maybe water level too low in boiler and causing...

    Maybe water level too low in boiler and causing some steam production when producing hot water.
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    It is unusual to check for acid on each call. I...

    It is unusual to check for acid on each call. I have had a few I checked because the odor from refrigerant when dis/connected gauges.

    The system is old enough that if the compressor craps out,...
  46. 70 lbs differential. Never tried before, so don't...

    70 lbs differential. Never tried before, so don't know how long would take to get that difference, w/o going into vacuum on low side.

    I do know they will switch w/o running- I've pumped down into...
  47. if you were going to cycle comp and fan, could...

    if you were going to cycle comp and fan, could tack on a transformer too, and shift the sov when get 70# psi difference.
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    Have one customer, the drainline is ALWAYS...

    Have one customer, the drainline is ALWAYS recovered by landscaping guys when go back.
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    2-7 wouldn't hold up very well, especially zinc....

    2-7 wouldn't hold up very well, especially zinc. can't see casting a secondary hx and getting it to be compact.

    Monel can swim in brine for years and still be hardly scratched, but is about 1/2...
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    Must not be that big a deal, the secondaries...

    Must not be that big a deal, the secondaries aren't all that big. They just need more surface area for heat exchange. How much is "very low" compared to other metals? gold, copper, monel?

    SS seems...
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