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  1. The "Inverter" technology in the Mitsubishi Mr....

    The "Inverter" technology in the Mitsubishi Mr. Slim line seems very unusual, or not unique. Does anybody else use anything like it to give such a wide range of BTU output?

    Also, the relatively...
  2. Does anyone know of other brands at 1 ton? I...

    Does anyone know of other brands at 1 ton? I posted a separate item on duct-less units:
    http://hvac-talk.com/vbb/showthread.php?p=1865600#post1865600
  3. And indeed you can take a couple branches. I...

    And indeed you can take a couple branches. I verified this in the installation instructions. Two sizes available on two sides. That whole Mitsubishi Mr. Slim product line is very intriguing. ...
  4. Duct-Free Split System for 480 sq ft Expansion?

    Does any HVAC manufacturer with sales in the mid-Atlantic region besides Carrier provide something like Carrier's Duct-Free Split System? Who? Web sites? Any capacities between 12,000 and 18,000...
  5. Smallest Central A/C or Heat Pump with Lowest Capacity

    Hello everyone, my last post was in Jan 2007. Now I'm back for a new project, and it's great to see some of the old names here. We do not yet have a good, professional load calc on an architect's...
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    We are into our second season, and love the...

    We are into our second season, and love the Mendota. It is great for both style and heat delivery. We took the fan/blower option but do not run it a full speed. During the dealer's first...
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    As a fellow homeowner, and only if I liked the...

    As a fellow homeowner, and only if I liked the idea of dealing with that contractor for any system now and down the road, I would ask him if he and his crew have just come out of training by the...
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    That's a Heavy Duty Cord

    To clarify my original posting: the standard hardware store item rated at 60 Celsius would be a Major Appliance Cord, 14 Gauge, three wire, SPT-3, 15A125V/1875W.
    Al
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    Can I safely use an extension cord rated at 60...

    Can I safely use an extension cord rated at 60 degrees Celsius?

    My Mendota gas insert came with an 8ft extension cord which is rated at 105 degrees Celsius (221 F). Under the firebox is a hard...
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    I am trying to convince my son to invest in...

    I am trying to convince my son to invest in HVAC-Calc, but he is resisting the idea, thinking that the several dealers who happen to agree on sizing by rules of thumb are all correct. You all know...
  11. Back to BaldLoonie (and others). ...

    Back to BaldLoonie (and others).



    BaldLoonie uses the number 2TTR2030 which belongs to the XR12.

    I should have been more specific. The dealer used the number 2TTR4030A which does not exist...
  12. A Bryant/Trane dealer lists the following choices...

    A Bryant/Trane dealer lists the following choices for my son. My son is to pick a brand and refrigerant before the dealer makes a final proposal. This is for a townhouse. Comments please?

    ...
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    My son has a proposal for using a 3-ton...

    My son has a proposal for using a 3-ton evaporator coil with a 2.5 ton condensing unit in the 13 and 14 SEER range. I suspect the idea is to have better humidity control here in the mid-Atlantic...
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    My son has a proposal for an XL14i. I have an...

    My son has a proposal for an XL14i. I have an XL19i. I understand Comfort-R.

    What is it about the single stage 15i that allows Comfort-R? In the literature, there is no mention of Comfort-R...
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    My son is getting bids for a new system in his...

    My son is getting bids for a new system in his townhouse, 13 or 14 SEER. HVAC dealers are recommending R-410A instead of R-22. This comes from the Carrier and Bryant guys of course, but also from...
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    Go by what works in your room, both summer and...

    Go by what works in your room, both summer and winter. Try things out for yourselves. The business of pushing air down in summer and up in winter is just a starting point.

    In our house with...
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    Does the Bryant "Fan On Plus" feature for...

    Does the Bryant "Fan On Plus" feature for continuous fan control the fan speed only when there is no call for heating or cooling? Or does it override the variable speed performance that you would...
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    For best control of humidity in a townhouse, does...

    For best control of humidity in a townhouse, does the Evolution Control do anything better than the Thermidistat? If so, what?

    With the Bryant Plus 80v Model 315A gas furnace, the Evolution...
  19. What does the "SmartEvap" feature do that the...

    What does the "SmartEvap" feature do that the Thermidistat does not do by itself with older model furnaces?

    In the Bryant mid-line Preferred Series gas furnace, The Plus 80t Model 312, the control...
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    My son has a proposal from a Bryant Factory...

    My son has a proposal from a Bryant Factory Authorized Dealer for a Puron system that says they will "reconnect all existing copper refrigeration tubing from the condenser to the evaporator coil."
    ...
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    Going a little deeper here, the Bryant literature...

    Going a little deeper here, the Bryant literature on their web site, including the .pdf document indicates that the CK5P series is for Puron, the "P" also indicating that. The description includes...
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    Do the Bryant CK5P series evaporator coils have...

    Do the Bryant CK5P series evaporator coils have both a TXV and the "Check-flo-rater" (with a piston)? If so, what does the "Check-flo-rater" do?

    The literature describes all Bryant evaporators...
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    Re: wood vs. wood vs. wood

    Wondering about chromium carbides, I pulled up these links.
    http://www.engineersedge.com/wwwboard/messages/298.html
    and
    http://www.corrosion-doctors.org/MatSelect/corrstainsteel.htm
    When I tore...
  24. I have used silicone caulk for holes where...

    I have used silicone caulk for holes where electrical wires come up from between the walls. And I could use duct tape and foam gaskets for three junction boxes for ceiling fans and a hanging lamp. ...
  25. uktra, I just reviewed your earlier post. There...

    uktra, I just reviewed your earlier post. There are no HVAC ducts in the attic. My insulation is R-11 fiberglass blankets. I understand the benefits of going to R-32 or higher, that I would save...
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