steveray
SAWHORSE
I have some townhouses that when they were constructed, all of the gas ran through all of the adjacent units (and was legal to do so), from one end and left off as they went. The far end homeowner now wants to raise the half pound gas to 2 pound gas and regulate down at his appliances so he can install an automatic generator. I have pause with this, but don't know that I can prevent it by code....Any thoughts?
5 pounds is allowed in the building by IRC
G2413.6 (402.6) Maximum design operating pressure. The
maximum design operating pressure for piping systems
located inside buildings shall not exceed 5 pounds per square
inch gauge (psig) (34 kPa gauge) except where one or more
of the following conditions are met:
1. The piping system is welded.
2. The piping is located in a ventilated chase or otherwise
enclosed for protection against accidental gas accumulation.
3. The piping is a temporary installation for buildings
under construction.
Todays code:
G2415.3 (404.3) Prohibited locations. Piping shall not be
installed in or through a ducted supply, return or exhaust, or a
clothes chute, chimney or gas vent, dumbwaiter or elevator
shaft. Piping installed downstream of the point of delivery
shall not extend through any townhouse unit other than the
unit served by such piping.
This is about the only section I could hang my hat on:
G2412.3 (401.3) Modifications to existing systems. In modifying or adding to existing piping systems, sizes shall be maintained in accordance with this chapter.
If it is already "out of compliance with this chapter" can I let him modify it?
Not set on anything, but Shirley don't want this one to blow up in anyone's face...
Thanks!
5 pounds is allowed in the building by IRC
G2413.6 (402.6) Maximum design operating pressure. The
maximum design operating pressure for piping systems
located inside buildings shall not exceed 5 pounds per square
inch gauge (psig) (34 kPa gauge) except where one or more
of the following conditions are met:
1. The piping system is welded.
2. The piping is located in a ventilated chase or otherwise
enclosed for protection against accidental gas accumulation.
3. The piping is a temporary installation for buildings
under construction.
Todays code:
G2415.3 (404.3) Prohibited locations. Piping shall not be
installed in or through a ducted supply, return or exhaust, or a
clothes chute, chimney or gas vent, dumbwaiter or elevator
shaft. Piping installed downstream of the point of delivery
shall not extend through any townhouse unit other than the
unit served by such piping.
This is about the only section I could hang my hat on:
G2412.3 (401.3) Modifications to existing systems. In modifying or adding to existing piping systems, sizes shall be maintained in accordance with this chapter.
If it is already "out of compliance with this chapter" can I let him modify it?
Not set on anything, but Shirley don't want this one to blow up in anyone's face...
Thanks!