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  1. Replies
    22
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    7,377

    Ok so its an old post, but it was scary close to...

    Ok so its an old post, but it was scary close to what I have.
    ( Google found it)
    R22
    Suction pressure 125, temp 75 ( 125=67° ) so 8° superheat.
    Liquid line 215
    outdoor temp 94
    I figured it...
  2. Replies
    49
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    6,025

    Are you sure the fan speed for cooling is set to...

    Are you sure the fan speed for cooling is set to med-low? Slowing the fan down will make the coil a bit colder and remove more moisture from the air.

    City or area vs state would help a bit too as...
  3. Replies
    2
    Views
    382

    Writesoft allows you to enter the cost of gas,...

    Writesoft allows you to enter the cost of gas, elect,etc. Looks like you will bespending $1100 with either co.
  4. Replies
    19
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    1,345

    On a quick glance, I noticed they used a 72...

    On a quick glance, I noticed they used a 72 degrees for winter. Here they tell us to use 70 degrees. they made a note because of elevation about it.
  5. Thread: HVAC in Attic

    by binford
    Replies
    43
    Views
    3,575

    Forgot to add, you need to doulbe seal...

    Forgot to add, you need to doulbe seal everything. I used duct mastic, tape, and ty-raps, and screws to hold everything together. When I say doulbe seal I mean you need to put mastic on the inside...
  6. Thread: HVAC in Attic

    by binford
    Replies
    43
    Views
    3,575

    They have not finalized the changes yet, so I...

    They have not finalized the changes yet, so I can't get any PDF docs

    Here is the 2005 stuff
    http://www.energy.ca.gov/2005publications/CEC-400-2005-005/chapters_4q/4_Building_HVAC.pdf
    ...
  7. Thread: HVAC in Attic

    by binford
    Replies
    43
    Views
    3,575

    We only have about 6 months before the new 2009...

    We only have about 6 months before the new 2009 energy code changes take affect, which will force builder's and remodeler's to make homes even more energy efficient.

    Here is a bulletin, notice the...
  8. Thread: HVAC in Attic

    by binford
    Replies
    43
    Views
    3,575

    I did not say install them so they leak....

    I did not say install them so they leak. :rolleyes: Who's paying for that independent audit to be performed by a company that specializes in this type of testing. Can you say rape me please!!! ...
  9. Replies
    7
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    1,015

    Yes you are correct the return air vent has less...

    Yes you are correct the return air vent has less insulation then the rest of the attic, but in the big picture your windows have even less R value. ;)
    Does the acttic access door have insulation?
    ...
  10. Thread: HVAC in Attic

    by binford
    Replies
    43
    Views
    3,575

    It's just a fact that duct work outside...

    It's just a fact that duct work outside conditioned space will cost you more in operating costs. You did not say where you live, but here in California most every new home has the unit in the...
  11. Replies
    32
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    2,154

    Deep fried, baked, BBQ on the spit. never did...

    Deep fried, baked, BBQ on the spit. never did the smoke version.

    So far everyone likes it cooked on the spit. Takes about the same time as baking. I just use a Weber with a rotisserie and put...
  12. Replies
    20
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    1,246

    Agree! I think you already realized you have...

    Agree!

    I think you already realized you have an air flow issue, you just need more air going up stairs and less going down stairs. I think the contractor was hoping the VS fan would overcome duct...
  13. Replies
    13
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    1,263

    I feel your not explaining yourself fully. ...

    I feel your not explaining yourself fully.

    It should run until the house is at the t-stat set point and it should not run when above the t-stat set point:confused:
    The weather varies and the...
  14. Thread: Garage heater?

    by binford
    Replies
    11
    Views
    861

    Cheap, Fast, Good. Pick two;) Those electric...

    Cheap, Fast, Good. Pick two;)

    Those electric one's look good.

    FWIW. You can have gas via a propane tank too.
  15. Replies
    5
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    525

    To measure the SP, you really need those little...

    To measure the SP, you really need those little magnetic probes, that you slip in and the magnet hold them in place. The holes are designed to prevent a mis reading and just measure SP. think of...
  16. Replies
    312
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    76,101

    Nice job on the write up and pictures. I...

    Nice job on the write up and pictures.

    I did not see your NI. bottle connection, was it on the pump? I noticed you use a shut off valve on the pump port connection too. Is the one on the...
  17. I've been seeing a lot of systems that seem to be...

    I've been seeing a lot of systems that seem to be way over kill on new construction, maybe if the housing industry got it's chit together and quit running R6 duct work in the attic it would help. ...
  18. Replies
    17
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    1,615

    that's a big hassle and last resort!! Send the...

    that's a big hassle and last resort!! Send the contractor a reg. letter stating you need them to re submit the required paper work as per PG&E request. A copy needs to also go to PG&E customer...
  19. Thread: Is This Legit?

    by binford
    Replies
    16
    Views
    1,337

    The internet prices are still over my cost, plus...

    The internet prices are still over my cost, plus there is shipping.
    you can use the internet to better understand why some units cost more than others. I would be looking towards 410a as the r22...
  20. Replies
    17
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    1,615

    Bait and switch? You discuss rebates and its not...

    Bait and switch? You discuss rebates and its not on the contract that seems strange. I guess your SOL if the contact has a check mark for duct testing and rebates and it's not marked or written...
  21. Replies
    5
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    8,790

    Maybe the crew notices that they can draw a 500...

    Maybe the crew notices that they can draw a 500 micron (mTorr) on the line set and it holds, but when the condensor valves are open they can't seem to hold a 500 and assume the oil is vaporizing?
  22. Replies
    9
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    4,251

    Humm, got radon. you did not say what part of...

    Humm, got radon. you did not say what part of the country you live in.

    I suspect you meant "under" the slab vs in the slab. I guess I took it literally.

    Your going to need to look at PVC...
  23. Replies
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    827

    Thanks, I will call in the morning

    Thanks, I will call in the morning
  24. Replies
    2
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    827

    I have a bad Thermostat on Silver King...

    I have a bad Thermostat on Silver King refrigerator model SKTTR7F.

    I am looking for some good places to order commercial refrigeration parts. (aka good prices)

    Fixitshop.com wants $90...
  25. Replies
    27
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    2,350

    Been a long time, since I been on this board,...

    Been a long time, since I been on this board, glad to see a lot of good tech's still posting. 80 CO bigtime OUCH!! All I can say is my flue gas is lower than that.

    For sure turn it off, until...
  26. Replies
    14
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    1,132

    It's possible the breaker is bad, or your...

    It's possible the breaker is bad, or your compressor has an internal short. Wait an hour and try it again, if it works then, it because the system has equlized in pressure, so it's easier for the...
  27. Replies
    1
    Views
    902

    You can use your manifold gauge. One line to the...

    You can use your manifold gauge. One line to the meter/pump one line to the refrigerant bottle and one line needs to be connected to the system. They make a 4 way manifolds too. You need to get...
  28. Replies
    58
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    10,959

    I thought irascible liver spot removal tool...

    I thought irascible liver spot removal tool comment was funny, you got to have a sense of humor just your keep your sanity. I don't get caught up in the hype, (yes some companies use scare tactics)...
  29. Replies
    58
    Views
    10,959

    Davidr is correct! Since the customer says they...

    Davidr is correct! Since the customer says they don't always smell it. For example it might take combination of several items to create the smell, like the gas water heater kicks because they are...
  30. Replies
    58
    Views
    10,959

    Davidr is correct! Since the customer says they...

    Davidr is correct! Since the customer says they don't always smell it. For example it might take combination of several items to create the smell, like the gas water heater kicks because they are...
  31. Replies
    10
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    2,950

    Evaporative cooling is cheaper to operate, a lot...

    Evaporative cooling is cheaper to operate, a lot cheaper.
    If you have kids running in and out all day long it's great. But you need to live in a climite where it will work. How can you tell? Go...
  32. Replies
    19
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    6,416

    Most power companies will only offer rebates on...

    Most power companies will only offer rebates on systems with a TXV, since they offer greater efficiency.
  33. Replies
    66
    Views
    14,815

    A bit off the subject, but as homes are being...

    A bit off the subject, but as homes are being offered with higher and higher energy saving as a selling point. Soon all duct work will have to be run in conditioned space to obtain even more gain on...
  34. Replies
    8
    Views
    3,077

    I should market t-stats that offer 50% electrical...

    I should market t-stats that offer 50% electrical savings, since the cooling can't be set below 82 degrees:)
  35. Replies
    66
    Views
    14,815

    Boric acid is used as eye wash and to clean your...

    Boric acid is used as eye wash and to clean your contacts. Crawling around in any attic insulation is not fun, that why they are suppose to have runways. I bought a full face mask, have yet to use...
  36. Replies
    23
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    3,967

    I read right through supply air. Look up UMC...

    I read right through supply air. Look up UMC 602.1
    stud/partition cavities not OK for supply air.
    NCBolton is correct you would get mold if above 50% R.H. The supply air is very cold and water...
  37. Replies
    66
    Views
    14,815

    Cellulose is shredded-newspaper treated with...

    Cellulose is shredded-newspaper treated with borax.
    I install fiberglass batts in my attic; this way if needed I can move them, to install a light or fan, etc.
    For a crawl space, I would look to...
  38. Replies
    23
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    3,967

    Running your duct work inside condition space is...

    Running your duct work inside condition space is great! Best thing you could ever do. You’re not breaking any code concerns. The issue would be warm moist air from the outside getting near the cool...
  39. Replies
    86
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    14,069

    I don't have much time these days to cruise...

    I don't have much time these days to cruise HVAC-talk, but this post is great, like watching T.V. can't wait for next week episode.
  40. Replies
    8
    Views
    3,077

    I would think the mineral free water it would...

    I would think the mineral free water it would take, would cost more than you would save. Have I ever put water on a running condenser sure, but everyday it would build up deposits which would...
  41. Replies
    6
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    3,819

    Anything you use needs to be UL-181 approved. A...

    Anything you use needs to be UL-181 approved. A lot of people use mastic duct sealant, it’s a white water based compound you apply with a short bristle brush. There is a foil tape with a butyl...
  42. Replies
    48
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    11,156

    Js I live in Northern California too. Glad to...

    Js I live in Northern California too. Glad to see you know the differences about UV lamps. Lennox makes Pureair system that uses a photo-catalytic oxidizer, to produce free radicals.
    You can...
  43. Replies
    48
    Views
    11,156

    It's one thing to have lots of UV lights A, B, or...

    It's one thing to have lots of UV lights A, B, or even C because you’re on the operating table, but too much of a good thing is bad. Your body has no defense against ozone, so a balance needs to be...
  44. Obviously CO testing should be performed. Not...

    Obviously CO testing should be performed.
    Not being there is hard to say, but it could be as simple as your new furnace blows twice as much air as the old one, so you’re having a reaction to the...
  45. Replies
    48
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    11,924

    Thanks Jim for all the responses. I just got the...

    Thanks Jim for all the responses. I just got the Fyrite pro 125, So after I get so time under my belt I will be taking one of your classes. Do you really travel every week? The schedule on the NCI...
  46. Replies
    48
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    11,924

    I set the O2 on the edge 9.1, for both low and...

    I set the O2 on the edge 9.1, for both low and high.
    High Low
    CO 15 15
    O2 9.1 9.1
    Stack Temp 114 110
    w.c. 4.2 2.33

    I need to do a PM on a...
  47. Replies
    48
    Views
    11,924

    Jim I adjusted the gas pressure to 2.84wc which...

    Jim I adjusted the gas pressure to 2.84wc which brought the O2 down to 6.8 and the CO drop to 18 or 27 air free the flue temp went up to 110. But then I clock the meter and got 69 cubic ft or...
  48. Replies
    48
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    11,924

    I see your point about the fan speed. I tested...

    I see your point about the fan speed.

    I tested the furnace the day before and the O2 was 12.1 flue temp was 93.
    CO2 5.0
    excess air 122.4
    CO 23
    CO Air free 55
    EFF 96.1

    When running on...
  49. Replies
    48
    Views
    11,924

    Ok what am I doing wrong. I clocked the gas...

    Ok what am I doing wrong.
    I clocked the gas meter for 136 seconds for 2 cubic feet of gas, which equal 53 cubic feet per hour times 1020 content multilpier from the gas company which give me 54,060...
  50. Replies
    48
    Views
    11,924

    You guys need to re-read Jim's statement (25%...

    You guys need to re-read Jim's statement (25% more innefficient on low fire ) not use 25% more gas on low fire vs high fire.

    Jim that does seem like a lot. I tested my 2 stage var. speed furnace...
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