Burner setup – Linear Boiler User Manual
Page 11
PAGE 11
BIASI B/40
BURNER MANUFACTURER
Heat Wise
Boiler Model
B-406
B-407
B-408
B-409
B-410
B-411
B-412
Burner Model
SU-3
SU-3
SU-4
SU-5
SU-5
SU-6
SU-6
Fuel
Natural
Natural
Natural
Natural
Natural
Natural
Natural
Input
315
420
499
577
672
847
954
Min. Gas Inlet Size
1"
1"
1"
1"
1"
1"
1-1/4"
Manifold in w.c.
1.95"
3"
3.5"
2"
2.8"
1.16"
1.4"
Air
9.5
14
21
7.5
9
4.25
5
Head
6
11
20
2"
2"
2-5/8"
2-5/8"
BURNER MANUFACTURER
Heat Wise
Boiler Model
B-406
B-407
B-408
B-409
B-410
B-411
B-412
Burner Model
SU-3
SU-3
SU-4
SU-5
SU-5
SU-6
SU-6
Fuel
Propane
Propane
Propane
Propane
Propane
Propane
Propane
Input
315
420
527
634
740
847
954
Min. Gas Inlet Size
3/4"
3/4"
1"
1"
1"
1"
1"
Manifold in w.c.
1.65"
2.4"
2.75"
1"
1.27"
Air
7.25
15
21.5
5.2
5.8
Head
6
10
18
2"
2"
2-5/8"
2-5/8"
The following information applies only to the BIASI B-40 series boilers at a maximum output
for power venters or lined chimneys only.
8. Burner Setup:
Good, reliable operation with a minimum of service starts with attention to the small details:
1. Setting the electrode and flame rod settings against manufacturer's specs to insure proper operation.
2. Installing properly sized gas piping according to BTU input required and length of gas line run.
3. Making sure there is proper manifold pressure before and after the gas valve using a calibrated manometer.
4. Checking draft at the breeching to insure it is adequate to overcome flue gas resistance.
5. Setting the air band properly with well maintained instruments. A good target is 9.5% to 10.5% of (CO
2
) or 5%
to 2.5% of (O
2
) for natural gas, or 10% to 12% of (CO
2
) or 5% to 2.5% of (O
2
) for lp gas
Note: Oil and Gas burners on B40-series boilers cannot be properly commissioned
without instruments and gauges.
To determine how much gas is coming into the
burner, or to set the gas meter correctly, the follow-
ing 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