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  1. redgdon

    CSA B139 - Oil Code

    Looking for the definition of a "continuous overflow", can anyone help?
  2. redgdon

    Chilled water loop cooler for PC

    Can you adjust your entering water temperature to above the room air dew point temp?
  3. redgdon

    Standard CAN/CGSB 48.2 Spot Radiography of Welded Butt Joints in Ferrous Materials

    Thanks
  4. redgdon

    Standard CAN/CGSB 48.2 Spot Radiography of Welded Butt Joints in Ferrous Materials

    I currently putting together a technical specification for a project and was wondering if anybody knows what standard if any "CAN/CGSB 48.2 Spot Radiography of Welded Butt Joints in Ferrous Materials" was replaced by when this particular standard was withdrawn. Thanks in advance
  5. redgdon

    RTAA Sound Attenuation

    The acoustic enclosure was in effect wall. It was made up of a series of panels which sat perpendicular to the chiller along it's length.
  6. redgdon

    retrofit for new lab

    1. Yes. 2. You can buy terminal outlets that have a HEPA enclosure (don't know where you are in the world but have a look at the Krantz website ttp://www.krantz.uk.com/default.aspx). As for how much you would lose - don't know, you would have to check the pressure drop across the filter.
  7. redgdon

    RTAA Sound Attenuation

    Installed 4 x 1.2MW Trane chillers, with acoustic enclosure, also supplied by Trane. The only way to tell if they were running was to put your hand on the casings and feel the vibration.
  8. redgdon

    Variable Refrigerant Flow (VRF) systems experiences?

    The advantage of these systems is that they do use the same amount of energy as conventional systems. They also allow you to use the heat removed from one area, (perhaps a server room) and dump it into another room (such as office space) rather than just dumping it to atmosphere.
  9. redgdon

    Air movement in egress elements

    From what I've read above I would think that if the return air ducts from the rooms are branched into the return air duct in the corridor, then provided you install the appropreate fire dampers where fire barriers are breached there wouldn't be a problem. If however the return air ducts from...
  10. redgdon

    Air movement in egress elements

    Hi, Would agree with you there MintJulep. I would ask your architect if all of the internal doors which lead off of this corridor are air tight, since natural leakage around the door would then imply that the corridor is a supply duct. I’ve only just moved to North America (Canada), but I’ve...
  11. redgdon

    Variable Refrigerant Flow (VRF) systems experiences?

    I have seen dozens of these systems installed in the UK. It comes down to this, you need to have a reputable and competent installer. I’ve never had any problems with the physical systems but on one occasion the control package did fall over and as you have noted needed to be replaced...
  12. redgdon

    Looking out for #1

    If the company is struggling to the extent that it can't pay your expenses, then perhaps it is time to look after number one and look for a new job, before they can't afford to pay you.
  13. redgdon

    Heat Removal by Ventillation

    If your computer room is within 30m of an outside wall I would suggest using a multi-slpit DX systems to cool the room
  14. redgdon

    Difficult decision to make

    Simple, your company is reducing staff to cut costs. Which one is the highest cost to the company? One thing I would keep in mind is this, if the person remaing is your only subordinate, look for a new job.
  15. redgdon

    Future Change in Career Path

    Hi Ussuri, Don't know where you are in the world, if that makes a difference, but I made the change in the UK several years ago without doing a second degree. I haven't met any resistance or had problems because I don't have a law based degree. I have however been fortunate enough to work for...
  16. redgdon

    Server Room in Retro Fit Project

    I would agree with those advocating a split system. I would also suggest that you would consider twin systems to ensure you have cooling should one system fall over. This will of course depend on how critical the server is to your client.
  17. redgdon

    UNDERGROUND CHILLED WATER PIPING

    Hi, Try these people, they do a pre-insulated pipe with built in leak detection. I have used it in the past and had no problems with it. http://www.starpipe.com/frameset_gb.asp?menu=praesentation
  18. redgdon

    Theatre Canopy

    Can anybody suggest a manufacturer of theatre canopies in the UK. Many Thanks
  19. redgdon

    Faux Pas

    LOL Once again, that age-old adage applies. Better to let people think you’re an idiot, than to open your mouth and confirm it.
  20. redgdon

    Contract or Hand shake?

    I find it difficult to believe that anyone would or even consider working without having a formal written contract. Trust no one. Sure, give someone the benefit of the doubt, but don't do it in a situation that could affect you finacial stability.

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