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  1. The Coleman was installed summer of 2005. I...

    The Coleman was installed summer of 2005. I can't find the warranty page. homeowner info says it's Unitary Products Group HATC-F036S. Compressor is Bristol TS.

    Anyone know if the compressor is...
  2. Not exactly sure why the Coleman failed but it...

    Not exactly sure why the Coleman failed but it wasn't cooling and I had it serviced. The tech found a pinhole leak on a pipe that went to the compressor. The unit was fixed and then several months...
  3. George, that's correct. One air handler in the...

    George, that's correct. One air handler in the attic feeding two zones. It's a raised ranch with walkout basement. There's a separate system for downstairs.

    It's R38 in the attic ceiling...
  4. Id, Is that 3.8 to 4.75 ton estimate for...

    Id,

    Is that 3.8 to 4.75 ton estimate for Boston or Lousiana?
  5. Relplacing 2-stage AC: Use single or another 2-stage?

    I need to replace my 3ton Coleman twin Speed bristol that died at the end of the season last year. This unit covers 1900 sq ft upper level where the kitchen, living space and bedrooms are. ...
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    Two Stage AC Condensor Replacement?

    My Coleman/York Twin Speed bristol powered 3Ton condensor developed a pin hole leak this summer. Had it repaired and then started to have difficulty switching over from single stage to 2nd stage. ...
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    Would you guys recommend the T-Class? I...

    Would you guys recommend the T-Class?

    I would like to have the option to run economizer here in New England. Is an 11SEER vs a 12SEER going to make a difference in monthly operating costs for...
  8. Replies
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    Lennox T-Class ?

    How is the Lennox T-Class compared to the L Series? What can I expect for differences in efficiency, maintenance and operating costs, and reliability for a7.5 ton RTU?
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    Cost is an issue, so will be using fiberglass...

    Cost is an issue, so will be using fiberglass batts.

    Can go with R19 on the walls and either R32 or R38 on the ceiling as upgrades. Waiting for cost diffference for these upgrades.

    Any idea...
  10. Replies
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    Insulating a Steel Building?

    Guys,

    What do you recommend for insulation in a steel building?
    Standard insulation is 4" on the walls and ceiling with an R13 and vinyl vapor barrier.

    Application is in the northeast with...
  11. Replies
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    Location is in the northeast (Boston area). Use...

    Location is in the northeast (Boston area). Use is as an entertainment center. Consultants say to use 1Ton/300-325sf and the engineer calculated in this range at least for the other building. ...
  12. Replies
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    Hi Dave, This is a completely different...

    Hi Dave,

    This is a completely different building so I though it deserved it's own thread.

    My architect has his own engineer and will ask for a design if we pursue this building. I want to be...
  13. Replies
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    I am looking at leasing a metal building. It is...

    I am looking at leasing a metal building. It is mostly a wide open space with 24' ceiling height in the center and 20' ceiling height to the side walls. There is some insulation on the walls and...
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    jpb, What do you like about the Ruud B series?

    jpb,

    What do you like about the Ruud B series?
  15. Replies
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    1,761

    Dan, I only spoke to one and he recommended...

    Dan,

    I only spoke to one and he recommended two units, so if one failed I would still have some capacity until the other was repaired.

    What is the typical frequency of failure one might expect...
  16. Replies
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    1,761

    Which manufacturer RTUs do you guys recommend for...

    Which manufacturer RTUs do you guys recommend for a concentric install for an 18Ton load. This is for a wide open area application. Looking for standard efficiency unit(s) with reliable track...
  17. Replies
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    Engineer calculated the load for 18Tons for the...

    Engineer calculated the load for 18Tons for the new area which is to be renovated. There is a Trane 25Ton Hi Efficiency unit already in the lobby.

    If I install new units in the new space (Trane,...
  18. Replies
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    What kind of energy savings can be expected in...

    What kind of energy savings can be expected in the Northeast with a High Efficiency RTU vs a Standard Efficiency. The EER seems to be only 1 point more on the (ie 11.4 vs 10.5) high efficiency.
  19. Replies
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    New Coleman/York HTC 3Ton installed last year...

    New Coleman/York HTC 3Ton installed last year having some trouble this year but worked last year.

    Initially compressor did not turn on, so I checked the control board and the status light in...
  20. I am being advised that a separate aquastat is...

    I am being advised that a separate aquastat is required for an indirect hot water heater to be mated to my GB142 wall hung boiler. I thought the GB142 had an internal aquastat already built-in?
    ...
  21. Replies
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    R&R, Take a look at this site to get a better...

    R&R,
    Take a look at this site to get a better understanding of acoustical isolation. Bass frequencies are the most difficult to isolate.
    http://www.stcratings.com/index.html...
  22. Replies
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    Loonie, Called ADP Tech. They do have some...

    Loonie,

    Called ADP Tech. They do have some matchups for Goodman. For the 2.5Ton AHU they had a matching unit for the Goodman CLQ (14SEER unit) which should work for the CLT. In fact I have a...
  23. Replies
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    For a 2.5 Ton ADP heat/cool AHU, how could I...

    For a 2.5 Ton ADP heat/cool AHU, how could I matchup to a Goodman CLK 13SEER Condenser effectively? The Goodman evaporator for this condenser is a larger (3.5ton) A coil, while the ADP lists a...
  24. Replies
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    Maximum # Zones

    How many zones can one do with the Infinity? I was under the impression 4 max with the zone board.
  25. Replies
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    Dash, Are you using the 5 ton unit and how big...

    Dash,

    Are you using the 5 ton unit and how big is your place and what si your window and insulation details? Only 4 calls for hi speed sounds impressive for FL. When I looked at homes in the...
  26. Replies
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    With an Infinity system can I use EWC, Aprilaire,...

    With an Infinity system can I use EWC, Aprilaire, Trolatemp, etc zone dampers and control board if I want to zone off at a later date?

    What would be the tradeoffs of not using a Carrier zone board...
  27. Replies
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    Guys, Where is the drain pain set in...

    Guys,

    Where is the drain pain set in relationship to the hung airhandler?
  28. Replies
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    option b

    Maybe get another cheap Goodman outdoor for the 2.5 ton and go with matched components at 12SEER.
  29. Replies
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    rudeman, The furnace and evaporator coil were...

    rudeman,

    The furnace and evaporator coil were damaged in a fire and removed along with the debri. Now that the house is restored, I still have the outdoor unit.

    The unit more closely matches...
  30. Replies
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    I have a Goodman 3.5Ton outdoor unit still...

    I have a Goodman 3.5Ton outdoor unit still available. It's been left with lines unattached to an evaporator coil and without freon for the past year and do not exactly know what to expect of it's...
  31. Replies
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    Taron, ADP has a new variable speed air...

    Taron,

    ADP has a new variable speed air handler with hydro coil called the BV series. It is just starting to ship but I don't know how the price compares to the multispeed unit.

    I live just...
  32. Replies
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    I have 3 bathrooms. Two of the baths have 70 and...

    I have 3 bathrooms. Two of the baths have 70 and 80 gallon tubs, one of which has a shower. The other bathroom has a shower for two with 2 valves and 5 volume controls for engaging shower heads,...
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    Plain, I am a HO and like to be an educated...

    Plain,

    I am a HO and like to be an educated one. The contractor noted a bypass was required, and I suspected that it did not as you have stated. Can I download the Carrier or Bryant Zoning...
  34. Replies
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    What are the general duct sizing requirements for...

    What are the general duct sizing requirements for an Infinity zoning system compared to a non-zoned duct design? As far as managing the loads of 3-4 zones, what are the guidelines on sizing loads to...
  35. Replies
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    hogan, Fresh air exchange, humidity control,...

    hogan,

    Fresh air exchange, humidity control, hepa filtration are proven and recommended practices. Check out the links and info on lungusa.org and healthouse.org

    The PCO technology used in the...
  36. Replies
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    Asthma & Allergy Foundation ...

    Asthma & Allergy Foundation

    http://www.aafa.org/templ/display.cfm?id=327
  37. Replies
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    Strion, Looks like he catches them on the hepa...

    Strion,

    Looks like he catches them on the hepa filter and nukes em that way.

    If you have a good filter, not sure if it's necessary to nuke em or not. If they're on the filter, how long do the...
  38. Replies
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    From the American Lung Association: (excerpted...

    From the American Lung Association:
    (excerpted from)
    http://www.lungusa.org/site/pp.asp?c=dvLUK9O0E&b=39311


    My child has asthma. Quite severe at times. The AprilAire Model 5000 puts out...
  39. Replies
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    The AprilAire Model5000 produces ozone and is a...

    The AprilAire Model5000 produces ozone and is a no-no.

    Is Photocatalytic the way to go?
    http://www.bcn.ufl.edu/cp/pdfs/PhotocatalyticDecontamination.pdf
  40. Thanks for the info. I am starting from...

    Thanks for the info.

    I am starting from scratch after a house fire and would like to do it right. Fresh air exchange and humidity control are musts. Not sure what whole house filtering would be...
  41. I would like to clean up the air in my home for...

    I would like to clean up the air in my home for my daughter that suffers from allergies and asthma attacks here in the Northeast.

    Which whole house Air filtration and exchange systems or...
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