DeDietrich Innovens MCA 25/28 BIC, Installation And Service Manual

Page: 55 / 124

¼ See chapter: "Professional settings", page 68
5.4.2. Setting the air/gas ratio (Full load)
1. Unscrew the plug of the flue gas measurement point.
2. Connect the flue gas analyser.
WARNING
Ensure that the opening around the sensor is completely
sealed when taking measurements.
3. In the main display, press key
-
. The menu
EMISSION
MEASURMENTS
is displayed on the screen.
If an automatic vent cycle is running, it is not possible to
perform these operations.
4. Turn the rotary button until
PMAX
is displayed. The full load is set.
5. Measure the percentage of O
2
or CO
2
in the flue gases (Front
panel removed) .
6. If this rate does not match the required value, correct the gas/air
ratio using the adjustment screw A on the gas valve unit.
7. Check the flame through the flame inspection window.
The flame must not be detached.
T001581-A
1
1
2
2
r
c
STD
(
'
t
v
0 2 4 6 8 10 12 14 16 18 22 24 20
p b
AUTO
x c
r
j
M
g m
SUNDAY 11:45
TEMP.: 68°
C002271-F-04
bar
1
1
2
2
r
c
STD
( '
t
v
0 2 4 6 8 10 12 14 16 18 22 24 20
p b
AUTO
x c
g m
r
j
M
GENE :
BOILER TEMP.
CURRENT
WIND SPEED
PMAX
68°C
10µA
5600 tr/min
a
C002347-F-04
AUTO => PMAX
A
T000932-A
MCA 25/28 BIC 5. Commissioning
15/06/12 - 300022159-001-01 53