OARA Type 979L Natural Gas Regulator Help

PilotPat24

Hi Guys,

I know this is off topic but I have a new Bertazonni Gas Range that is going to be installed with a supplied OARA Type 979L Natural Gas Regulator.

Two Questions...

1) Does anything need to be done with the vent during the install? (See attached picture)

2) I'm assuming the arrow on the rear of the regulator indicates the direction of the gas flow? (see attached picture)

Thanks for any input.

Pat

EdTheHeaterMan

Do you actually need it? What is the pressure regulated to... 3.5"WC? What is the system pressure at the appliance inlet?

As far as that vent, there is next to nothing going to come out of that opening. But some AHJ will require that the vent be piped to a safe location. Others will allow it to vent indoors when connected to Natural Gas.

mattmia2

My viking cooktop was like that. Instead of having the appliance regulator installed on the appliance it came loose in the box with it. The vent on that should have an orifice in it that will limit how much gas can leak if the diaphragm breaks.

EBEBRATT-Ed

Yes, What @mattmia2 said it needs to have a vent limiting orifice installed in the vent tapping or be piped outdoors. You should contact the regulator mfg for the correct vent limiter

PilotPat24

I was able to find literature about the regulator that came with the range. It says that it already has a vent limiter. I guess I am good to go. I attached the literature for the regulator.

PilotPat24

EdTheHeaterMan said:

Do you actually need it? What is the pressure regulated to... 3.5"WC? What is the system pressure at the appliance inlet?

As far as that vent, there is next to nothing going to come out of that opening. But some AHJ will require that the vent be piped to a safe location. Others will allow it to vent indoors when connected to Natural Gas.

Here is some information I got...

Gas Meter...



National Grid Blue Book...



Appliance Information...

mattmia2

Show a further back pic of the meter. is there a meter regulator?

Bob Harper

The yellow plastic plug IS the vent limiter. This is a typical poppet-style appliance regulator. It is adjustable as the label shows from 10-4 wci for LP vs. NG with a maximum inlet gas pressure of 1/2 psi( 14wci). If the space is ventilated and accessible, you do not need to extend the vent. You need an approved shutoff, ground union, and sediment trap immediately upstream of the regulator.

mattmia2

Bob Harper said:

You need an approved shutoff, ground union, and sediment trap immediately upstream of the regulator.

I thought ranges were excepted from the drip leg rule. Won't the appliance connector serve as a union?

PilotPat24

I spoke with the regulator manufacture yesterday. They said that regulator is good to go in it's current configuration. I am assuming this arrow on the back of the regulator housing represents the gas flow direction?

Pat

ratio

Yup.

PilotPat24

ratio said:

Yup.

Thank You.