Search Results - HVAC-Talk: Heating, Air & Refrigeration Discussion

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Type: Posts; User: crab master

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  1. Replies
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    TridiumTech - Welcome to the site.

    TridiumTech - Welcome to the site.
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    114

    If it has to be built from the ground up then...

    If it has to be built from the ground up then they didn't send the backup to the device and/or they don't have a back up on hand. This can be ugly...

    What version is this?

    If you're in via...
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    How do you know it's entered fail safe mode? ...

    How do you know it's entered fail safe mode? Typically that accomplished by someone physically putting it in that mode. Does it ping?

    Have you restarted the device? Make sure you kill power to...
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    Nice! Glad you got it. Welcome to the site.

    Nice!

    Glad you got it. Welcome to the site.
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    The problem is one all to often gets provided...

    The problem is one all to often gets provided with sales brochures, not data sheets.

    As said apples to apples, look at data sheets and find the model they want to provide as even many data sheets...
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    What did they have in them before as to DDC or...

    What did they have in them before as to DDC or did they? The only other option would be wireless with a bunch of repeaters or wired to wireless gateways...
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    Yes x 2

    Yes x 2
  8. UPS for the controls?

    UPS for the controls?
  9. Thread: Vvt or vav

    by crab master
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    Ahh and then a return and/or supply temp low...

    Ahh and then a return and/or supply temp low limit to not freeze up while in bypass...

    One reason I like VAV on DX, you can calculate the actual airflow. Airflow within DX capacity then enable...
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    The flip side is the laws in some states and what...

    The flip side is the laws in some states and what it takes to 'add' another transformer.

    Sometime you have to call an electrician to be legal. Oh and then if you make it over 100VA, such as...
  11. I do too, I was 6 and spit it out! Told dad I...

    I do too, I was 6 and spit it out!

    Told dad I was thirsty so he handed me his beer or maybe I just seen him drinking it and I wanted a drink....
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    The other thing is it also depends if you are...

    The other thing is it also depends if you are daisy chaining all your power or T tapping. Daisy chaining you'll get the drop in a hurry with the added VA. What I'll do a lot of times depending on...
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    Get out your meter and troubleshoot, or call...

    Get out your meter and troubleshoot, or call someone to do it for you.

    A relay could be sticking in the furnace, at the stat, a loss of common, etc.....
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    The 127 and above number is for slave devices. A...

    The 127 and above number is for slave devices. A few sites since I am just monitoring the VFD's all my VFD's are set to numbers >127. Then I set the max master to the device count or maybe one or...
  15. Good to hear, sometime just need a fresh set of...

    Good to hear, sometime just need a fresh set of eyes
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    What devices are you using and at what speed? ...

    What devices are you using and at what speed? I've solved a few weird issues by slowing the baud rate. The other thing is some devices can only handle a max request count, I had one that was...
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    The new AHU might be a pretty good option. I am...

    The new AHU might be a pretty good option. I am pretty sure I've bought a new AHU in the past w/coil and reheat for about the same price/less than the cost of just the coil...but now that I am...
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    Trane Indoor Coil Replacement Help

    I have a Trane TWE036C140BO indoor unit with an outdoor heat pump of TWR036D1000A0. Could not find a model# on the indoor coil.

    I fixed a leak on the main distributor back on Jan 31st and...
  19. You know your occupied heating and cooling...

    You know your occupied heating and cooling setpoints are the same.....
  20. http://www.robertshawtstats.com/images/docs/110-65...

    http://www.robertshawtstats.com/images/docs/110-653C%20Cropped.pdf

    Look at pg 5 & 6 and then find out what your temperature differential is set to, after you check your home humidity levels.
  21. Closing bedroom vents could cause you more...

    Closing bedroom vents could cause you more problems and will dehumidify faster, but at the possible and likely expense of freezing up your indoor coil, unless you have a grossly over-designed indoor...
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    My favorite meter is the UEI DL389...

    My favorite meter is the UEI DL389 I just wish it also did mA. It's compact and does everything short of the mA, which if I could ever find a combo clamp meter that does mA...*I really like the...
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    How hot did the motor get prior to the install? ...

    How hot did the motor get prior to the install? The motor will run hotter with a fan speed control on it.
    As to your question on the pressure to set to it depends on the application, do you have...
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    I had the title changed to see if you can get...

    I had the title changed to see if you can get more help.
    Did you try chesehd's suggestion? I recall doing the same thing in the past.
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    I am not much of an INET guy at all. I've...

    I am not much of an INET guy at all. I've dabbled with it some years ago, but that's it. If you can edit the title of your post to say "INET Help" or something of the sorts you'll likely get a...
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