Why does IRC not address the same as IMC section 1203.1.1? Basically what I have is Iron Piping with direct copper connections to iron in a single family. This was noted in the circulating system. The boiler was relocated about 2 months ago extended with copper and they reinstalled the same connections (Copper to iron) The original system was installed about 15 years ago.
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Hydronic Piping / Boilers
- Thread starter dcspector
- Start date
Paul Sweet
SAWHORSE
Re: Hydronic Piping / Boilers
I've been told that electrolytic corrosion isn't much of a problem in hydronic heating systems because the same water is recirculated for years, and the dissolved oxygen in the water, which is necessary for corrosion to occur, isn't replenished.
I've been told that electrolytic corrosion isn't much of a problem in hydronic heating systems because the same water is recirculated for years, and the dissolved oxygen in the water, which is necessary for corrosion to occur, isn't replenished.
Re: Hydronic Piping / Boilers
So Paul looking at IMC 1203.1.1 Joints between different piping materials.... are you saying water in Residential is different in commercial? So why is this noted in IMC and not noted in IRC? That was my original question in my op.
So Paul looking at IMC 1203.1.1 Joints between different piping materials.... are you saying water in Residential is different in commercial? So why is this noted in IMC and not noted in IRC? That was my original question in my op.
Re: Hydronic Piping / Boilers
Greg,
2006 IRC, Chapter 13 General Mechanical System Requirements.
"M1301.1 Scope. Installation of mechanical appliances, equipment and systems not addressed by this code shall comply with the applicable provisions of the International Mechanical Code and the International Fuel Gas Code."
If asked; refer to this section and the applicable section of the IMC.
Uncle Bob
Greg,
2006 IRC, Chapter 13 General Mechanical System Requirements.
"M1301.1 Scope. Installation of mechanical appliances, equipment and systems not addressed by this code shall comply with the applicable provisions of the International Mechanical Code and the International Fuel Gas Code."
If asked; refer to this section and the applicable section of the IMC.
Uncle Bob
Re: Hydronic Piping / Boilers
Greg,
Your welcome. The IRC is already overflowing with code requirement specifics; and growing. The 2009 IRC added 198 pages to the 2006 IRC. By 2015 the IRC will probably be a two volume set.
The Fuel Gas section of the IRC even adds "the location of the corresponding text in the International Fuel Gas Code"; in addition to refering to the IFGC for requirements "not specifically covered in these chapters shall comply with the appicalble provisions of the International Fuel Gas Code".
The attempt to make the IRC a "Stand Alone Code" has it's limitations.
Uncle Bob
Greg,
Your welcome. The IRC is already overflowing with code requirement specifics; and growing. The 2009 IRC added 198 pages to the 2006 IRC. By 2015 the IRC will probably be a two volume set.
The Fuel Gas section of the IRC even adds "the location of the corresponding text in the International Fuel Gas Code"; in addition to refering to the IFGC for requirements "not specifically covered in these chapters shall comply with the appicalble provisions of the International Fuel Gas Code".
The attempt to make the IRC a "Stand Alone Code" has it's limitations.
Uncle Bob
Dr. J
Silver Member
Re: Hydronic Piping / Boilers
From a technical standpoint, Paul is correct. In a closed hydronic system, once the free oxygen is used up, galvanic corrossion is very limited to non-existant. Also, a proper installation includes corrosion inhibitors. The problem, particularly with residential, is whether the system is actually closed, and of course inhibitors are optional. The H.O. may think it is a good idea to drain and fill the system every year, introducing new oxygen each time.
Regardless of the technical points, UB pointed out the code requirement - go with it.
BTW, I recommend a dielectric waterway rather than a dielectric union (unions leak). Either are code compliant.
From a technical standpoint, Paul is correct. In a closed hydronic system, once the free oxygen is used up, galvanic corrossion is very limited to non-existant. Also, a proper installation includes corrosion inhibitors. The problem, particularly with residential, is whether the system is actually closed, and of course inhibitors are optional. The H.O. may think it is a good idea to drain and fill the system every year, introducing new oxygen each time.
Regardless of the technical points, UB pointed out the code requirement - go with it.
BTW, I recommend a dielectric waterway rather than a dielectric union (unions leak). Either are code compliant.