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  • Users: arp08
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  1. arp08

    Familiarity with Armstrong Air heat pumps

    I am evaluating proposed residential heat pumps for use in a project. Armstrong Air equipment has been submitted. I am not familiar with the brand. Can anyone provide information regarding Armstrong Air?
  2. arp08

    Dedicated Outdoor Air Systems

    I am involved in a renovation of the HVAC for a college classroom building. I am interested in finding information on dedicated outdoor air systems (DOAS). I think it would work in this application. Any help on where to find design information for these systems?
  3. arp08

    LT2006 recognizing second hard drive

    On my computer, LT2006 is loaded on the C-Drive and all my drawing files are on a second hard drive (D-Drive). When attempting to make a block, LT 2006 say it can't find the path to the D-Drive. No problems if I save to the C-Drive. What's up? Using my old LT2002 I had no problems with this. Any...
  4. arp08

    AutoCad LT 2006 conflict w LT 2002?

    I have both LT 2002 & LT 2006 on the same computer. When I try to add blocks or dwgs to a tool palette (in LT 2006), I get an Error message that refers back to a file in my 2002 program directory. Anyone know of specific conflicts of having both these versions of AutoCad loaded, but not running...
  5. arp08

    heat pump refrigerant piping

    MintJulep & Pennpoint: Thank you for the helpful & timely discussion. Hope you have a good weekend!
  6. arp08

    heat pump refrigerant piping

    Is it necessary to insulate the smaller (liquid) refigerant pipe for a residential size air-cooled heat puump?
  7. arp08

    Duct Insulation

    I have heard arguments for and against insulating air conditioning ductwork exposed in conditioned spaces. Opinions?
  8. arp08

    Drawing HVAX Flex Duct - Lisp or Other Means ???

    If you're doing single line ductwork, try drawing an arc with the "Tracks" linetype. I believe this linetype is included with most versions of AutoCad. I don't know of a double-line solution.

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