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Type: Posts; User: sayco bob

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  1. what the

    I did not see any mention of replacing the furnace/blower is this correct? With a split system the blower, evaporator, condenser and metering device need to match. The thermostat is not your problem,...
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    Insist on a load calculation

    I have done countless load calculations and the one thing I have learned is I could not possibly eyeball the size unit for a home without over-sizing the equipment. I constantly put in smaller units...
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    Refrigerant?

    How long do you plan to be in the home?
    The real issue is not going to be any concern until your warranty is up in 5-10 years depending on what you are receiving. And your unit (R-22) has been...
  4. also waiting

    We were able to get our hands on a 24ANA760 and installed it yesterday. We are waiting on others but here May will be the first availability.
  5. Thread: charging

    by sayco bob
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    delta T?

    Precise Temperatures:
    What do you consider a proper delta t? Are you talking about the delta t for the evaporator, condenser, or both? Are you measuring dry bulb or wet bulb temperatures? If you are...
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    Thanks Loonie, I am familiar with why oversizing...

    Thanks Loonie, I am familiar with why oversizing is less efficient, unfortunately I installed a furnace for a customer last month. She had no complaints from her tenant after the installation but she...
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    Does anybody know where I can get some...

    Does anybody know where I can get some information that will help explain how oversizing a mid efficiency gas furnace will waste more energy than a properly sized unit? Thanks in advance for any help.
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    just my opinion

    I lived in Northern VA before moving to southern AZ six years ago. I think you should consider staying with an all electric heat pump or go to a duel fuel system.
    If you go duel fuel you will...
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    been a while

    I worked for Simpson heating and cooling when I was in VA. It has been 6 years so many changes have been done but they wera a solid company.
  10. duel fuel is the way to go

    I don’t know what your local utility rates are but I believe dual fuel is the way to go. Heat pumps often don’t have the same life as a gas furnace and A/C combination because of the extreme...
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    duel fuel

    Have you considered duel fuel? The Carrier Infinity is the best control I have seen for this. It uses indoor and outdoor temperatures as well as indoor humidity to determine what mode to run in as...
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    1,424

    ????

    I read your last two posts and I wanted to reply with specific answers to your questions but I’m away from my office and could not give you answers until Monday. I have some questions for you The...
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    Oh NO

    Once again someone replaces a 20++ year old 3-Ton system with a 4-Ton System. Because “Bigger is Better”.
    As far as ratings between units make sure you are comparing apples to apples. Some...
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    where are you

    What part of the country are you in? I am in Tucson and we see “raised floor” returns with a single inlet quit often. I agree that a variable speed furnace (blower) will be quieter on the lower...
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    Lets see?

    Let’s see,
    Was the thirty three thousand + BTU’s that his load calculation based on total BTU’s or is that the figure that his program used to determine based on some percentage of the actual BTU’s...
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    I was wondering is anyone has installed any...

    I was wondering is anyone has installed any ductless heat pumps that use R-410a refrigerant. I have seen some ads for such units but I have only found one that is built in South Africa. I have a...
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    consider duel fuel

    I don't know where you live or what your utility rates are but where I live natural gas runs around $1.00 per therm and electricity runs just under $.10 per KW (winter rates are even lower). I am...
  18. vent termination

    I would also recommend that the vent termination be corrected. The reason for the 12" between the inlet and outlet is to prevent re-circulation of the exhaust into the intake. I think this is...
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    1" filters

    I would also stay away from the 1" filters. The Carrier Infinity control is a wonderful tool to learn about air flow. The communication between the control and blower allows us to see the CFM...
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    single stage v/s two stage

    Don’t get me wrong I believe in two-stage cooling when it fits the application. I just don’t think that the cost difference is always justified. If one system calls for a 3.5-ton unit and you have to...
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    Where in the AZ Desert are you?

    If you were not in Phoenix I would stay away from Lennox. Just my opinion but I am in Tucson and there are no Lennox distributors here. I can't begin to tell you what problems this arises from this!...
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    Cheaper Solution

    You can replace the Thermostat with a switch! That way you can cycle your oversized system that has an improper duct system when ever you want. P.S. Remember it takes @ 9 min. for your unit too reach...
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    R-401A vs R-22 / Irascible

    "The ONLY thing I like about 410A over 22 is that in some cases its higher density will allow you to run smaller refrigerant lines. And it’s also true that 410A is more finicky about installation...
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    As far as of I am aware Heil Does not make a...

    As far as of I am aware Heil Does not make a R-410A unit. How and why do you know that 5 ounces of oil was removed from your unit? A typical residential unit has a hermetic (sealed) compressor has no...
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    return duct ?

    I like the way they reduced the return duct before making a sharp 90 deg turn with no throat before entering the air cleaner. I suppose they did this to increase the velocity and so the lower half of...
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