2 gas burner setup, Hr = [3600/(sec. per rev.)]*(size of gas meter), Orifice – QHT BIASI B3-B9 User Manual
Page 20
Page 20
To determine how much gas is coming into the
burner, or to set the gas meter correctly, the
following formula can be used.
The chart to the right can be used to determine
the flow rate depending upon the time per
revolution and the size of the gas meter dial.
Ft
3
/hr = [3600/(sec. Per rev.)]*(Size of gas meter)
Size of Gas Meter Dial
(Cubic Foot)
0.5
1
2
20
90
180
360
25
72
144
288
30
60
120
240
35
51
103
206
40
45
90
180
45
40
80
160
50
36
72
144
55
33
65
131
60
30
60
120
Seconds per
Revolution
This page is only for boilers using a gas burner. If an oil burner is being used,
please refer to page 18 for the proper setup of the burner.
Riello
Natural Gas
Propane
Boiler Model
Burner Model
Input
(MBH)
Man. Pres.
(W.C.)
Head
Setting
Air
Gate
Man. Pres.
(W.C.)
Head
Setting
Air
Gate
B-4
R200
110
1.06”
2.2
1
1.32”
2
1
B-5
R200
140
1.20”
2.8
2
1.76”
2.7
2
B-6
R200
175
1.46”
2.8
3
2.34”
2.9
3
B-7
R400
207
1.22”
2
0
1.48”
2
0
B-8
R400
248
1.26”
2.3
1
1.64”
2.3
1
Heat
Wise
Natural Gas
Propane
Boiler
Model
Burner
Model
Input
(MBH)
Man. Pres.
(W.C.)
Head
Setting
Air
Gate
Man.
Pres.
(W.C.)
Head
Setting
Air
Gate
B-4
SU-2A
115
3.5”
12
3
2.3”
12
3
B-5
SU-2A
140
3.2”
15
8.3
1.8”
15
7.75
B-6
SU-2A
175
3.5”
10
13.5
2.3”
10
13.5
B-7
SU-2A
215
3.3”
3
15
2.0”
3
15
B-8
SU-3
272
1.7”
1
3.25
1.3”
1
3.25
B-3
SU-2A
80
3.5”
18
closed
2.0”
22
closed
B-9
SU-3
308
2.3”
1
6.75
1.7”
2
6.5
Orifice
3/16
7/32
9/32
21/64
27/64
No orifice
No orifice
Orifice
3/16
7/32
9/32
21/64
27/64
No orifice
No orifice
8.2 Gas Burner Setup
*Note: These burners may not be used on Biasi equipment in Canada
Note: Consult burner manufacturers literature for gas manifold diagram and controls.