Viessmann Vitomax HS M73 - Burner Data Tables (M95 B continued)

47
Type M95B
Boiler size 1 2 3 4 5 6 7 8
Nominal steam mass flow rate for
operation with natural gas
*9
t/h 5 6 7 8 10 12 14 16
Nominal steam mass flow rate for
operation with light fuel oil (HEL)
*9
t/h 5 6 7 8 10 12 14 16
Flame tube dimensions
Diameter
■
Smooth pipe, int. 7 d1 mm 981 1056 1106 1156 1231 1306 1381 1431
■
Corrugated pipe, int.
7
d1 mm 975 1050 1100 1150 1225 1300 1375 1425
Smooth pipe application
limit
bar 16 13 13 13 10 10 8 8
Length a mm 3375 3625 3850 4075 4450 4800 5150 5525
Reversing chamber
depth
b mm 500
Burner connections
■
Max. flame head 7
(optional wear-resist-
ant burner entry point) c mm
610 660 710 710 810 910 910 910
■
Max. flame head 7
(standard version)
c mm
Adjusted subject to burner.
■
Minimum flame head
length e mm
360
Combustion chamber volume
(min. values)
■
Flame tube m³ 2.55 3.17 3.70 4.28 5.30 6.43 7.71 8.89
■
Flame tube length and reversing
chamber depth m³ 2.93 3.61 4.18 4.80 5.89 7.10 8.46 9.70
Pressure drop on the flue gas
side with natural gas
For operating pressure
■
With ECO 2 5 bar mbar 11.2 10.3 12.2 13.1 13.2 13.1 14.9 13.6
23 bar
*10
mbar 12.3 11.4 13.5 14.4 14.6 14.5 16.6 15.1
■
With ECO 1 5 bar mbar 9.6 9.9 11.3 12.1 11.7 12.5 13.7 12.2
23 bar
*10
mbar 10.6 10.9 12.6 13.4 12.9 13.9 15.3 13.5
■
Without ECO 5 bar mbar 11.1 12.3 13.4 13.1 12.5 14.3 12.9 11.0
23 bar
*10
mbar 13.1 14.5 15.9 15.5 14.7 17.0 15.1 12.8
Pressure drop on the flue gas
side with EL fuel oil
For operating pressure
■
With ECO 2 5 bar mbar 10.0 9.2 10.9 11.8 11.7 11.8 13.2 9.4
23 bar
*10
mbar 11.0 10.2 12.1 12.9 13.1 13.0 14.7 10.6
■
With ECO 1 5 bar mbar 8.6 8.8 10.1 10.9 10.4 11.3 12.1 8.4
23 bar
*10
mbar 9.5 9.8 11.2 12.0 11.6 12.4 13.6 9.5
■
Without ECO 5 bar mbar 9.9 11.0 12.0 11.8 11.1 12.9 11.4 7.6
23 bar
*10
mbar 11.7 13.0 14.2 13.9 13.2 15.2 13.4 9.0
*9
The actual nominal steam mass flow rate may vary subject to the specific system.
*10
For boiler size B and above < 25 bar, the maximum operating pressure depends on the flame tube
7
.
Commissioning, inspection, maintenance
Adjusting the burner (cont.)
5837984