Unigas G400A - How to read the burner “Performance curve”; Checking the proper gas train size

PART I: SPECIFICATIONS
9
3I2MG-21 v0 Hydraulic diagram
PSPSH PSL
M
PS
M
M
S
PS
PI
PI
12
3
6
50
4
20
52
53
18
16
12
15
19
19
10
54
VGD
44
47
41
4042
45 43
46
M
51
M
48
13
14
S
6.1
16.1
MB-DLE
PS
PSH
PSL
24
25 23
26
According to the gas train size and the burner type, MB-DLE
safety valves are supplied. In this case, the item 42 is inte-
grated in the valves. See the following drawing.
Note: The following POS are optional: 19, 20, 40, 41, 46
LEGEND
POS
OIL TRAIN
1
Filter
2
Flexible hose
3
Pump and pressure governor
4
Electrical motor
6
Solenoid valve
6.1
Solenoid valve
10
Oil distributor
12
Pressure gauge
13
Pressure governor
15
Pressure switch
16
One-way valve
16.1
One-way valve
18
Flexible hose
19
Manual valve
20
Pressure gauge
MAIN GAS TRAIN
23
Pressure switch - PGMIN
24
Safety valve with built in gas governor
25
Proving system pressure switch - PGCP
26
Pressure switch - PGMAX
40
Manual valve
41
Bellows unit
42
Filter
44
Safety valve with built in gas governor
45
Proving system pressure switch - PGMIN - LT
46
Pressure switch - PGMAX
47
Butterfly valve
51
Actuator
COMBUSTION AIR TRAIN
50
Air damper
51
Actuator
52
Pressure switch - PA
53
Draught fan with electromotor
54
Burner
oil inlet
oil outlet
gas inlet
combustion air
By others
By burner constructor