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Type: Posts; User: acwizard

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  1. Replies
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    Greenheck does offer them. The controls are mfg....

    Greenheck does offer them. The controls are mfg. by Melink.The system works well if there are low periods of activity on the cook line during slow times of the day.
  2. The objective of using a mini-split is to improve...

    The objective of using a mini-split is to improve efficiency. By trying to add inline fans or boosters is in contradiction of what you are trying to save.
  3. You can count me in.

    You can count me in.
  4. It would be helpful to know what system you have....

    It would be helpful to know what system you have. This information can be located on the printed circuit board.You more than likely have a DIGI3U or a DIGITRACT 4. Your damper motor has probably been...
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    With FSK ductwrap it is not as simple just to add...

    With FSK ductwrap it is not as simple just to add more insulation over the top of the bottom layer. The reasons are the fact you will create a dual vapor barrier with the possibility of trapping...
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    There is more to insulation then just the...

    There is more to insulation then just the thickness. You need to know the density of the fibers. Also when installing ductwrap care must be exercised to avoid overstreching which compresses...
  7. I am quite familiar with Zonex. If I understand...

    I am quite familiar with Zonex. If I understand you corectly you have two zones. One feeds upstairs and the other downstairs. You should have two thermostats. How large are the dampers, are the...
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    DOAS= dedicated outdoor air systems. ERV are...

    DOAS= dedicated outdoor air systems. ERV are often build into these units.
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    Even though the makeup is in the kitchen...

    Even though the makeup is in the kitchen additional makeup air must be added to compensate for combustion air and exhaust from the pizza oven.This can be accomplished by design of total restaurant...
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    A actual pizza oven would not generate any btus...

    A actual pizza oven would not generate any btus that are of significant to the a/c load. However the makeup air and the exhaust required to operate the oven would need to be considered. Combustion...
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    Installed a few and they work great.They can be...

    Installed a few and they work great.They can be easily removed for cleaning and company logos can be stenciled onto them as well.The soft start is good advise. There are lots of choices in their...
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    Are you looking to replace it. I assume you do...

    Are you looking to replace it. I assume you do not know the mfg.One can determine the size by knowing the horsepower , blower wheel size, and rpm.
  13. Look into Liebert or Data Aire. These mfgs....

    Look into Liebert or Data Aire. These mfgs. specialize in computer data rooms a/c equipment.
  14. A lot of great advise given. Have been involved...

    A lot of great advise given. Have been involved with a few. There are so many issues that need to be addressed. A great understanding of psychrometrics will give you the results you need for a proper...
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    Please review AOP Forum rules before posting...

    Please review AOP Forum rules before posting advice in AOP Forums.
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    Thats not totally correct. 3000 cubic feet is...

    Thats not totally correct. 3000 cubic feet is needed for complete combustion and proper venting in a natural draft appliance. It is about half in an induced draft appliance. So part of the air is...
  17. I like your creativity. I've been doing solar...

    I like your creativity. I've been doing solar thermal systems since the early 1980s. My only concern is in the event of stagnation your collector temperatures could easily exceed 200F. I first got...
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    The number is approx. 30 cubic feet of air...

    The number is approx. 30 cubic feet of air required per 1000 BTUH.
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    I am not here to debate that yes draft is...

    I am not here to debate that yes draft is important along with stack temperature.The average homeowner is not going to have the means to determine if the draft is correct. I would never make a...
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    Venting combinations are determined by venting...

    Venting combinations are determined by venting tables published by GAMA(gas appliance mfg. association) and the National Fuel Code. As mentioned before if not done correctly can be hazardous or...
  21. Thread: New System

    by acwizard
    Replies
    4
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    406

    The first step would be to address the building...

    The first step would be to address the building envelope. By sealing up leakage around windows, doors and insulating will reduce infiltration into your home. This will reduce the size of the...
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    I am not sure where you get that the ideal...

    I am not sure where you get that the ideal pressure is 0.5. All fans have a fan curve that compares static, cfm, and hp. The ideal static would be when the fan is operating at its most efficient...
  23. Thread: makeup air

    by acwizard
    Replies
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    3,265

    There are some flaws already in your design. If...

    There are some flaws already in your design. If you are wanting to bring in 100% osa and there is 12 tons of cooling, 2500 cfm is not enough air moving across your evaporator. No you can not use a...
  24. What is the model of the equipment in question....

    What is the model of the equipment in question. How long is the lineset and is the indoor unit at a higher elevation then the outdoor unit. Very rarely will you be able to get a contractor to replace...
  25. Wolfstrike, I second you on this one. You were...

    Wolfstrike, I second you on this one. You were referring to the Caltrans project for the new bridge in the bay area. With so many people out of work in this country and the goverment looking for ways...
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