Checking The Co 2 Content - Viessmann MatriX Service Instructions For Contractors
Pressure-jet gas burner for the vitocrossal 300, type cm3 rated heating output 87 to 142 kw
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Also See for MatriX:
- Service instructions manual (52 pages) ,
- Service instructions for contractors (52 pages) ,
- Service instructions for contractors (56 pages)
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Commissioning, inspection, maintenance
Checking the nozzle pressure
Nozzle pressure table for natural gas E and LL
Note
Check that the nozzle pressure table is applicable to
the burner. To do so, compare the serial number on
the type plate with the serial number on page 44.
Gas group Wobbe index Wo
kWh/m
3
Natural gas
15.00
E
Natural gas
12.40
LL
*3
Note
The nozzle pressures in the table represent a standard
factory setting for natural gas E or L. The values apply
to 15 °C, 1013 mbar and dry. These values may differ
slightly after a CO
adjustment (see following chapter).
2
Checking the CO
Preparing the test
Fig. 9
B
C
D
E
Fig. 10
*1
Details relative to T
/T
= 50/30 °C.
V
R
1 mbar corresponds approximately to 10 mmWC; e.g. 12.0 mbar
*2
a , c : No natural gas LL in Austria or Switzerland.
*3
12
(cont.)
Supply pres-
sure
mbar
MJ/m
3
*2
54.00
20.0
44.60
20.0
content
2
A
Rated heating output
er
87 kW
Nozzle pres-
10.5
sure mbar
*2
Nozzle pres-
10.5
sure mbar
*2
1. Open the gas shut-off valve.
2. Start the burner.
3. Simultaneously hold down S
than 2 s.
Display
will then show the following:
B
■
Under status: "P" (= controlled stop)
■
Under service: Modulation level in %
("100" = 100 % = upper heating output,
"0" = 0 % = lower heating output)
120 mmWC.
≈
of the boil-
*1
115 kW
142 kW
10.6
10.0
10.6
10.0
and
for longer
D
C
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