Prohibited Appliance Connection Locations 411.1.3.3 - Appliance Housing

[Papio Bldg Dept]

Prohibited Appliance Connection Locations 411.1.3.3 - Appliance Housing

We have been batting this subject around the office for about a month now, and with local contractors as to the definition of appliance housing as it applies to Section 411.1.3.3 in the 2006 IFGC or the 2006 IRC (2422.1.2.3).

We currently only permit a single rigid pipe to extend from the manifold out of the hosing where it is then connected to the gas service.

Looking for insight or links to helpful manufacturer's spec's that illustrate this section of code.

Thanks.

 

[globe trekker]

EDITED for clarity by "globe trekker''

.

 

[codeworks]

papio, sound right to me, rigid out of the unit, then to flex if thats whats used.

 

[Papio Bldg Dept]

papio, sound right to me, rigid out of the unit, then to flex if thats whats used.

Thanks codeworks. That is what we typically see in a standard left side piping connection, however, to provide an optional right side (or even top) piping detail, additional fittings and pipe connections are used to make the 180 degree turn. I will see if I can upload a picture tonight when I get home.

There is an argument over where the appliance connector begins (whether it is in the appliance housing or outside the housing).

When the installer's guide allows these optional types of connections and we have been approving them as part of the UL listed manufacturer's specifications.

 

[globe trekker]

Papio,

The code section that you listed does not allow flexible connectors to

extend thru the appliance housing itself. CSST "MIGHT" be allowed if

the CSST manufacturer permits it. Check with the individual CSST

manufacturer's installation requirements.

In this AHJ, we do not allow anything but rigid piping thru the housing.

Have never seem anyone attempt to use copper tubing, but would

probably allow it "if" some type of "appliance housing - gas connection

opening" had some type of approved grommet inserted in to the opening

itself, so as to reduce the possibility of penetrating the gas supply line.

If your contractors want to use something atypical, then have them

present documentation allowing the use.

.

 

[Gregg Harris]

Prohibited Appliance Connection Locations 411.1.3.3 - Appliance HousingWe have been batting this subject around the office for about a month now, and with local contractors as to the definition of appliance housing as it applies to Section 411.1.3.3 in the 2006 IFGC or the 2006 IRC (2422.1.2.3).

We currently only permit a single rigid pipe to extend from the manifold out of the hosing where it is then connected to the gas service.

Looking for insight or links to helpful manufacturer's spec's that illustrate this section of code.

Thanks.

IFG 411.1.3.3 and IRC G 2422.1.2.3

Exception # 4 allows the listed appliance connector to enter the appliance to connect to the gas valve when protected by rubber grommet, plastic sleeve etc. to protect it from vibration from the motor.

 

[klarenbeek]

That exception is not in the 2006 codes. It doesn't come in until the 2009.

 

[fireguy]

IFG 411.1.3.3 and IRC G 2422.1.2.3Exception # 4 allows the listed appliance connector to enter the appliance to connect to the gas valve when protected by rubber grommet, plastic sleeve etc. to protect it from vibration from the motor.

If the sheet metal would cut the flexible tubing, wouldn't the sheet metal cut the plastic sleeve? In Oregon, we are not allowed to couple two or more flexible connectors together for commercial. I have no knowledge of residential gas work.

Does anyone check for the proper regulator on appliance installs? Another reason for inspections by knowlagable peolple and not to issue a C of O unless app;iances are in place, and inspected and operational at the time of inspection.