Whirlpool 4322452 manual Magnehelic Gauge

8.Observe the movement of the water in the manometer. The gas pressure is read by adding the water movement in both legs of the tube, as shown in Figure 2-10. It should measure within the pressure rating stated on the rating plate.

Incoming

Gas Flow

Total Change In

Water Column =

4.00 IN. W.C.

Hose	4
	3
	2
2.00 IN.	1
	0

2.00IN. 1

2

New Water	3
	4
Levels

Figure 2-10

The Magnehelic gauge (see Figure 2-11) can also help measure gas pressure. This type of gauge is easier and faster to use that a manometer.

To use the gauge: Magnehelic Gauge

l.Check the appliance model/serial plate and note the gas pressure rating (see Figure 2-8 on the previous page ).

2.Turn off the gas pressure to the range.

3.Remove a burner from the appliance and place the free end of the tubing over the burner orifice.

4.Turn on the gas supply to the range.

5.Read the gas pressure directly from the scale of the gauge. It should measure within the pressure rating stated on the rating plate. Some gauges have numerous scales on the dial face. Read the water column pressure scale when taking the measurement.

				4					5
3			15						20
							12				6
10		8									25
2										16
5	4										7
											30
1		0						20
	O										8
0									.
		U							IN
		N		C
	I	CH			ES			.		35
								R
						PER SQ
	N		ES				TE
						OF
0							WA	S			9
			KI				L
					LOPASCA

Rubber Hose

Figure 2-11

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