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  1. Replies
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    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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    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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    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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    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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    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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    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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    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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    362

    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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    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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    803

    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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    1,243

    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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    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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    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
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    894

    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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    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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    I seem to not be able to find edit button. I cant...

    I seem to not be able to find edit button. I cant send you a PM either but I will say yes the journeyman rate for commercial service is considerably higher than what you posted. I don't have my book...
  27. Replies
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    I don't think I can publish the scale here but I...

    I don't think I can publish the scale here but I will send you a PM
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    makes the neighbors unit on the ground more...

    makes the neighbors unit on the ground more enticing for the local copper thieves.
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    I cant speak for any local 32 shops but local 66...

    I cant speak for any local 32 shops but local 66 shops for the most part cant hire from the street. if you know someone in a shop that's union they could push you through but lately things have been...
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    I got in the industry when i was 35. I got in...

    I got in the industry when i was 35. I got in through a union and i had a contact there that took me in to sign up. Out here in seattle we have two locals that have HVAC and refrigeration. Been in...
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    There are several used machinery warehouses here...

    There are several used machinery warehouses here n seattle. Not sure where u live but im sure you can find something close. Are you just looking for a basick knee or something bigger. Bridgeport...
  32. Thread: Vacuum pumps

    by hotrodrob
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    1
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    548

    My company provides the JB platinum 7cfm pumps....

    My company provides the JB platinum 7cfm pumps. They seem to be good but i have gone through 2 of them in the last 6 years. The problem with the two pumps that died have been they stopped pulling a...
  33. Ive had similar problem. The heat sink thermister...

    Ive had similar problem. The heat sink thermister was failing and needed to be replaced. After that it ran fine till the lonworks board died.
  34. Replies
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    You should be able to pump them down. Put heads...

    You should be able to pump them down. Put heads in cooling close off the liquid line and wait till suction reads 5-0 psi and hit the breaker. Then close the suction valve and you should be ok. Check...
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    Im hearing the new high for kids is huffing...

    Im hearing the new high for kids is huffing refrigerant. If no leak then this might be your answer.
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    X3 also check the economizer motor happened to me...

    X3 also check the economizer motor happened to me a few times.
  37. Replies
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    1,695

    I went from a over the shoulder bag to a...

    I went from a over the shoulder bag to a backpack. Some ladders in the commercial world are to tight of a fit so rope it up. I will never go gack to a sheoulder bag. Its soo much easier on the body....
  38. Thread: We Have A

    by hotrodrob
    Replies
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    864

    We Have A

    We have a water treatment guy come out and test our loop. This is a blower wheel for a small open cooling tower. the tower itself is less than 5 years old. moral of the story is, Water treatment can...
  39. Replies
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    we do both, both are same distance from the...

    we do both, both are same distance from the house. sams carries the same products at the store all year while costco will have what you need or want one week and once they are sold out they dont get...
  40. Replies
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    Ive have done this in several fans. Ones from a...

    Ive have done this in several fans. Ones from a mere 20hp to a couple 200hp. The 200's we had installed a factory retrofit kit to lock the blades and the smaller ones we would adjust the blades for...
  41. Replies
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    3,595

    Is it just me or do others here not trust the...

    Is it just me or do others here not trust the diagnostics of techs before you. Me out of curiosity will verify the diagnosis before a major repair. Its been more than once ive been sent out to change...
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    im with one of the other posters, if you arent...

    im with one of the other posters, if you arent living paycheck to paycheck then being happy is most important. Im kinda in the same situation. being offered other places to work for more money but...
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    I also forgot to mention not just aiding the sump...

    I also forgot to mention not just aiding the sump heaters but keeping the heat exchanger from freezing in a closed loop tower. Ive seen this setup more on evapco's than anything. of course the damper...
  44. Replies
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    The dampers might not be modulating. Ive worked...

    The dampers might not be modulating. Ive worked on several towers where the dampers are used to retain the heat in the tower in the winter to aid the sump heaters. If these are this type of damper i...
  45. ahh the never ending need to feel like getting a...

    ahh the never ending need to feel like getting a job done in a timely manner. it never goes away, heck yesterday i had a simple blower motor change to do in a hydronic ceiling hung heat pump. this...
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    here's a little article i picked up in a factory...

    here's a little article i picked up in a factory training class. should explain a few fundamentals for you
  47. Replies
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    Keep checking with the supply houses. Every now...

    Keep checking with the supply houses. Every now and then they do a cylinder exchange program around here. They take old bottles full or empty and give you a new or certifed bottle.
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    i wish more people on the commercial end would...

    i wish more people on the commercial end would come back and remove the suction filter/dryer. i have a few accounts that i inherited and they have some that were installed in the 80's and 90's, units...
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    I have something similar. Mine has a 6" hose...

    I have something similar. Mine has a 6" hose attached. sometimes a little bendy is nice. I have a set in my backpack. as a guy who works a lot downtown and will need to walk several blocks its nice...
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    if it worked before and now you only have a 10%...

    if it worked before and now you only have a 10% speed reference you could check your input. usually control terminal 53 is used as an analog input. if its 0-10vdc then it will be easy to check your...
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