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  1. Replies
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    1,814

    hate to bring up old thread but im in a bind....

    hate to bring up old thread but im in a bind. anyone have a download link, email in profile. TIA.
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    5,435

    Ok this sounds like some interesting reading....

    Ok this sounds like some interesting reading. Email should be in profile, TIA.
  3. I would check the schematic on the unit and...

    I would check the schematic on the unit and isolate the dirty filter switch wires from the RTM board and see if there might be a short in the wires between the switch and the RTM.
  4. We have custom grilles made for building...

    We have custom grilles made for building exteriors and grilles for spiral duct. Im sure anything can be fabbed up but custom work is not cheap. I would contact a sheet metal fab shop in your area to...
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    585

    Another consideration you will have to look at is...

    Another consideration you will have to look at is motor minimum speed. VFD certified motors that have blowers built in will have a minimum safe speed in their specs to cool the motor. Usually i see...
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    272

    Got a magnet. Sticks to its metal with iron in...

    Got a magnet. Sticks to its metal with iron in it. No stick to then a metal without iron like aluminin og magnesium.
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    1,166

    I use a ToolPak 4 panel. have had it for a couple...

    I use a ToolPak 4 panel. have had it for a couple years and it's held up well. plenty of room for everything. going from a shoulder bag to a back pack has saved me some chiropractic bills. only time...
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    1,139

    Poll: I got lucky since both my parents have high blood...

    I got lucky since both my parents have high blood pressure. My dads is extreme and he has no stress at all and for a 80yo man he still gets around and is pretty fit.
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    1,897

    This reminds me of when I was a apprentice. My...

    This reminds me of when I was a apprentice. My journeyman would say here are my keys open the side door, second rack on your left, third drawer down back left corner bin is what i need. If i did not...
  10. Its about pride in your workmanship. If you cant...

    Its about pride in your workmanship. If you cant put your signature on it for everyone to see dont sell it.
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    310

    Excessive noise at grilles is usually caused by...

    Excessive noise at grilles is usually caused by air velocity. Check design cfm and room cfm requirements. If they are in individual offices get square footages and cfms at grilles to compare with...
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    553

    For the most part you will see equal suction and...

    For the most part you will see equal suction and discharge pressures along with low amp draw at the compressor.
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    750

    Just thinking out loud here, but wouldn't a two...

    Just thinking out loud here, but wouldn't a two stage condenser still only have one suction line and on liquid line coming out. The staging would be internal to the condenser, either two compressors...
  14. Location Location Location. It all depends on...

    Location Location Location. It all depends on where you live and what the market will maintain. I live in a market where I make the top end of your scale, along with most other commercial techs. but...
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    Wow, operable window anyone.

    Wow, operable window anyone.
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    1,052

    The vav's i run into most are fan powered and in...

    The vav's i run into most are fan powered and in both series and parallel configurations. If its not a fan powered box and just a damper with or without reheat its pretty much considered a squeeze...
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    This has happened to us with some ptacs, new unit...

    This has happened to us with some ptacs, new unit showed up flat from factory. Factory sends replacement and says remove serial number and scrap the bad unit. Fixed leak, filled unit and gave to...
  18. it happens, I had a 40hp drive go that way. It...

    it happens, I had a 40hp drive go that way. It was on an intellipak I had shut the unit down with the BMS, then off at the unit itself. hit the 200a disco. do my work and turn back on. 1 of the 4...
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    1,052

    the vav box for the most part will mix...

    the vav box for the most part will mix plenum/space air with supply air and reheat the 50-55 degree supply air. most of the vav systems I work on are supplied with cold air and reheat plenum air when...
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    633

    I do quite a bit of work downtown and the endless...

    I do quite a bit of work downtown and the endless amount of a-holes like to park up against my back bumper. Im in a full sized van and the doors in back leave nice hood scratches. oh and of course...
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    I use the fieldpiece SDMN5 dual port. works great...

    I use the fieldpiece SDMN5 dual port. works great for negative pressure gas regulators. also use it for general pressure testing of ducts, buildings and wherever I need a inch water column pressure.
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    if you go with a drive you can mount it in the...

    if you go with a drive you can mount it in the blower compartment and add a remote panel for the lcd in the electrical cabinet. the factory mounts them in this manner and I have done a few retrofits...
  23. Thread: Economizer.

    by hotrodrob
    Replies
    8
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    823

    it's easy enough to build your own, you just need...

    it's easy enough to build your own, you just need to have a mixing plenum to the furnace and a couple dampers for mixed air. The Honeywell JADE controllers are fabulous for setting up a system like...
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    4,263

    fieldpiece SC57 and will never look back. picked...

    fieldpiece SC57 and will never look back. picked up the accessory tips and love them needle points for getting into molex connectors. Ive had and used flukes since the early 90's but no more.
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    the odds are probably not but you will have to...

    the odds are probably not but you will have to check with your local municipality and the codes required. did you check the line to see if a backflow is already in place for that supply
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