EN • 14
GAS BURNER CHARACTERISTICS
ACV BG 2000-S AIR/GAS PREMIX GAS BURNERS
The air/gas premix BG 2000-S burner is fitted with a Honeywell
gas valve, a venturi tube and an electrical control relay. The gas
valve has been specially developed for low NOx air/gas premix
burners with automatic lighting and flame detection by ionisation.
The pressure at the gas valve outlet is equal to the air pressure at
the neck of the venturi tube, reduced as the offset is adjusted. The
fan sucks in the combustion air through the venturi tube which the
gas inlet leads into. As it goes through, the air creates a vacuum
to the right of the neck of the venturi tube and sucks in the gas at
the venturi tube outlet. A perfect air/gas mix then goes through the
fan and then goes on towards the ramp.
The electrical control relay built into the gas valve ensures that the
flame on the burner is properly it and controlled.
This principle guarantees silent and totally safe operation:
• If there is not enough air, the vacuum in the venturi tube drops,
the gas flow is reduced, the flame goes out and the gas valve is
closed. The burner is locked out.
• If there is any restriction in the discharging of the burnt gases,
the air flow drops and this leads to the same reactions as those
described above leading to the burner being shut down, locked
out.
SETTING OIL BURNER PARAMETERS
G25
G35
G45
G55
Burner
BG 2000-S/25
BG 2000-S/35
BG 2000-S/45
BG 2000-S/55
Input
kW
25
34,9
45
55
Output
kW
22,45
31,35
40,5
49
Combustion efficiency - natural gas
%
91,7
91,5
92,4
92
CO
2
natural gas
%
9,1
9,0
8,9
9,0
CO
2
propane
%
11,0 / 11,2
11,0 / 11,2
11,0 / 11,2
11,0 / 11,2
Net T° of burnt gases
°C
170
173
153
165
Maintenance loss at 60°C of rate value
%
1,36
1,0
0,8
0,7
Gas connection [female]
Ø
3/4”
3/4”
3/4”
3/4”
Weight
Kg
14
14
14
14
Gas G20 - 20 mbar [ I2E(S)B - I2Er - I2H - I2ELL - I2 E ]
Flow
m
3
/h
2,65
3,70
4,76
5,8
Gas G25 - 20 mbar [ I2ELL ] - 25 mbar [ I2L ]
Flow
m
3
/h
3,07
4,3
5,52
7,98
Gas G31 - 30 / 37 / 50 mbar [ I3P ]
Flow
m
3
/h
1,02
1,43
1,84
2,25
N.B. : • The burners are preset in our factory for use with natural gas (equivalent to G20)
• An adjustement of the CO2 % is not allowed in Belgium. I 2E(S)B
The BG 2000-S burner is factory preset to
natural gas.
Conversion to propane:
Prohibited in Belgium.
Conversion kit enclosed with the burner comprising:
- Gate disk(s)
- Rating plate(s).
- Settings sticker.
- Assembly instructions.
Venturi
Fan
Air / Gas
mixture
Air
Gas
Offset
adjuster screw
Gas flow adjuster
screw [CO
2
]
GAS CATEGORIES
I2Er
I2E(S)B
I2H
I3P
I2L
I2ELL
I2E
FR
BE
AT - DK - ES - UK
IT - PT - IE - SE
BE - FR - ES
UK - PT - IE
NL
DE
LU
