UNIVERSAL ORIFICE—OVEN APPLICATION

Gas cooking systems for both L.P. gas and natural gas can be used without changing orifices by using a univer- sal orifice.

The universal orifice consists of an L.P. gas insert that is threaded into a cap orifice. This insert is actually an orifice itself. When natural gas is used, the cap is in the

Natural Gas Position

Cap Orifice

Gas Flow

Cap

position shown in Figure 3-7. Gas enters through both the cap and the insert. The amount of gas leaving the orifice is controlled by the size of the cap orifice.

Gas Flow

Insert

Figure 3-7

When L.P. gas is used, the cap is tightened down 2-1/2 turns so that it rests against the L.P. insert,

L.P. Position

closing off the spacing between the two (see Figure 3-8). The amount of gas leaving the orifice is now controlled by the size of the L.P. insert.

Cap Rests

Against

L.P. Insert

L.P. Insert

Gas From

L.P. Insert

Gas

Through

Cap Is

Blocked

Figure 3-8

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Whirlpool 4322452 manual Universal ORIFICE-OVEN Application, Natural Gas Position