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Type: Posts; User: bobboan

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  1. Replies
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    369

    An air conditioning system needs to move about...

    An air conditioning system needs to move about 400 cfm per ton. If you have a 4 ton unit that's 1600 cfm. Your bedroom may only need and have ducting to carry 300cfm. The IQ drive can modulate down...
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    Poor reviews are usually due to the misconception...

    Poor reviews are usually due to the misconception that when something goes wrong the appliance is to be blamed. In reality, 98% of the time, the installer is the one who should be blamed - especially...
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    542

    Look at your chimney outlet with the boiler...

    Look at your chimney outlet with the boiler firing and hot. See any steam?

    Is there any hidden piping that's not visible?
  4. "We have a 3100 sf cape house in Boston, MA and...

    "We have a 3100 sf cape house in Boston, MA and are planning a partial 2nd story remodel (raising roof, etc.), with new HVAC for the remodel. Our current systems include whole house central air,...
  5. No, Absolutely Not!

    Not only will a heat pump water heater not give you enough btu's, but it won't give you hot enough water for the AHUs unless their coils are way over-sized and the blower speed is drastically lowered...
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    Not a good idea, using a timer. Unless that's...

    Not a good idea, using a timer.

    Unless that's a condensing boiler by design, it will become one if you do what you're proposing.

    What the tenants are doing doesn't make sense. Between what...
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    1,556

    That boiler is made by Utica. I'd call their tech...

    That boiler is made by Utica. I'd call their tech support. 315-731-4163 Todd's direct line.

    You might also look for some debris "flapping" around in the gas line. Also keep your manometer on the...
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    Those numbers don't add up, but you have too...

    Those numbers don't add up, but you have too little fuel pressure. That has to be set correctly before combustion readings are taken.
    Site rules don't allow technical advice to be given out in this...
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    What were your O2, CO2 and CO readings?

    What were your O2, CO2 and CO readings?
  10. Replies
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    1,556

    Combustion analyzer? Do you have a digital...

    Combustion analyzer?

    Do you have a digital combustion analyzer?
  11. Two gauges reading 25+ and one relief valve...

    Two gauges reading 25+ and one relief valve dumping. I'd say the odds are in favor of these three components being accurate.

    How the system is piped and pumped can also effect the pressure in each...
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    I can't see why you would need five different...

    I can't see why you would need five different temps unless there are five different types of emitters.

    Do you know the heat loss of the house and the output of the boilers?
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    I think that distributor designed it primarily...

    I think that distributor designed it primarily for how many components he could sell.

    A little hydronic math:
    A 1/2" pipe will carry 1.5 gpm
    A 3/4" pipe wil carry 4 gpm
    A 1" pipe will carry 8...
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    I think you may be slightly over-pumped.

    I think you may be slightly over-pumped.
  15. I've got one who keeps sending the wrong...

    I've got one who keeps sending the wrong fittings. It really stinks when your 50 miles away in the middle of nowhere and you open a box and several are the wrong size.

    I rewarded his diligence by...
  16. Thread: Slum Lord

    by bobboan
    Replies
    30
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    2,985

    Marc, You stated in your photo description:...

    Marc,
    You stated in your photo description: "rotted fancy gas valve from water drizzling on it". Now you're saying it's condensation. Which is it? The gas valve appears to be below the leak that you...
  17. Thread: Slum Lord

    by bobboan
    Replies
    30
    Views
    2,985

    It IS unsafe! A water damaged gas valve can stick...

    It IS unsafe! A water damaged gas valve can stick open and you'll have a run away boiler. Guess who will be held responsible if it explodes? Not the landlord, but YOU! You are the professional! You...
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    No, you can't get any proprietary parts in the...

    No, you can't get any proprietary parts in the U.S. However, things like the ignition module, gas valve, aquastat, etc. are standard Honeywell parts.

    As far as quality goes, it's a very good...
  19. Your pressure is definitely too low. It should be...

    Your pressure is definitely too low. It should be 12psi cold for a one story bldg, 15 psi for two story, 18 psi for a three. That's conservative.

    We would need a diagram with pipe sizes, lengths...
  20. My point was that in order for scaling to be an...

    My point was that in order for scaling to be an issue fresh water would have to be introduced for an extended period. In order for that to happen, you would have to be leaking somewhere.

    There may...
  21. Whistling is usually caused by the flow velocity...

    Whistling is usually caused by the flow velocity being above 4 ft. per sec. It could be that scaling has reduced the internal diameter of the piping enough, but if that's the case, you have other...
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    You need to get you installing contractor back...

    You need to get you installing contractor back out and insist that he correct the problem. Site rules prohibit us from giving DIY advice, but it sounds like an ignition problem. Did your installer...
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    Probably not. What kind of boiler do you have?...

    Probably not.

    What kind of boiler do you have? If it's a mod/con, it will be more economical and more comfortable letting it operate from its outdoor reset curve - assuming that's correctly set....
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    Leave it off!!! Also, do NOT attempt to add...

    Leave it off!!!

    Also, do NOT attempt to add any water to that boiler until it's cooled down to room temp. If you do, you may find the boiler in the next county and yourself in the next world!
    ...
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    If they flushed the pipes, how is there still...

    If they flushed the pipes, how is there still sediment in them?

    The ten year warranty is the manufacturer's part warranty on the heat exchanger; it doesn't cover any labor. Nor would the...
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