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Posted by RBM on April 12, 2007, 7:17 am
You have a hydro-air system. One boiler supplies radiators in both the
upstairs and downstairs blower units. Each blower unit also contains cooling
coils for the AC. If you can find and get to the leaking pipe inside the
radiator, you could probably solder it. The unit may have to be removed to
expose the leak, which may be more than you want to tackle
> Ed,
>
> You showed a good picture of what I got. I have a heater and A/C unit
> combined. What I understand.
> The attic has an A/C unit for the upstairs and the basement contains the
> heater and the A/C unit for
> the downstairs. However, the heater in the basement also services the
> upstairs zone.
>
> So based on your picture. I have this duct work that contains a coil that
> is leaking.
> So is that something I can fix as DIY?
>
> I am contacting an HVAC guy today.
>
>
> - Larry
>
>
>
------------------------------------------------------------------------------------------------------
>
>
>>
>>> On Apr 11, 7:57 pm, "Lawrence M. Seldin, CMC, CPC"
>>>> I had a private repairman come over to fix the leak I have in my
>>>> heating
>>>> coil. He said that he does
>>>> not do this work. I had previouslly asked if the heating coil
>>>> replacement
>>>> was a DIY project. You
>>>> guys told me no.
>>
>>>
>>> Unless, you have a leak of _water_ condensing on the coil, and not
>>> being allowed
>>> into the drain line. Like, from a clogged line, which could be dealt
>>> with using a wet/dry
>>> ShopVac. Just suck out the clot.
>>>
>>> Leak of refrigerant would leave a residue of refrigerant-oil, but
>>> neither refrigerant or water.
>>
>>I think I've finally figured this out. He may have a water coil in a
>>plenum
>>with a blower in an air handler to move the air over the coil to heat it.
>>The boiler is separate and may even be feeding multiple heating coils in
>>different zones. Not all that common in a residential setting, but very
>>common in commercial heating systems. Take a look at this system
>>http://www.toolbase.org/Technology-Inventory/HVAC/modular-air-handler-hot-water-coil
>>
>>If that is the case, yes, it can be a DIY job if you can solder a joint.
>>Assuming the connections are soldered, they may be pipe fittings on the
>>header. It may even be possible to repair the leak once you find it.
>>
>
> Lawrence M. Seldin, CMC, CPC
>
> Contributing writer for FUTURES Magazine
> Author of RECRUITSOURCE PEOPLESOFT EXAM and RECRUITSOURCE SAP/R3 EXAM
> Author of POWER TIPS FOR THE APPLE NEWTON and INTRODUCTION TO CSP
>
> NOTE: To send me an email, remove TAKEOUT from my email address:
> larryTAKEOUT@seldin.net
>
> NOTE: My web home page: www.seldin.net
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