Linear Boiler Burner Setup, Ft 3/hr = 3600/sec. Per rev.*Size of gas meter

BIASI B/40 PAGE 11

8. Burner Setup:

The following information applies only to the BIASI B-40 series boilers at a maximum output for power venters or lined chimneys only.

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"

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 (CO2) or 5% to 2.5% of (O2) for natural gas, or 10% to 12% of (CO2) or 5% to 2.5% of (O2) 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
	Seconds per		Size of Gas Meter Dial
burner, or to set the gas meter correctly, the follow-				(Cubic Foot)
	Revolution
ing formula can be used.		0.5		1	2
	20	90		180	360
Ft3/hr = [3600/(sec. Per rev.)]*(Size of gas meter)	25	72		144	288
	30	60		120	240
	35	51		103	206
The chart to the right can be used to determine the	40	45		90	180
flow rate depending upon the time per revolution and	45	40		80	160
	50	36		72	144
the size of the gas meter dial.
	55	33		65	131
	60	30		60	120