Dynamic Gas Pressure Test; Flue Gas Test; Emissions Test Button; Measuring Co Content Of Flue Gas - Bosch KBR16-3 Installation And Service Instructions Manual

64 | Flue gas test

12.4

Dynamic gas pressure test

▶ Switch the appliance OFF and close the gas shut-off valve.
▶ Loosen the screw in the test port for gas inlet pressure
( Fig. 74, [1]) and connect a pressure gauge ( Fig. 75).
Fig. 75 Dynamic gas pressure test port
▶ Turn on the gas cock and switch the appliance ON.
▶ Press and hold the emissions test button
The display shows the supply temperature alternating with
maximum set output in heating mode.
▶ Briefly press the emissions test button
The display shows the supply temperature in alternation with
maximum nominal output.
▶ Check the required inlet gas pressure according to table 23.
Nominal
pressure
Gas type " W.C. (mbar)
NG 7 (17.4)
LPG (propane) 11 (27.4)
Table 23 Inlet gas pressure
Do not operate the appliance if the measured value is
below or above these values. Determine the cause and
eliminate the fault. If this is not possible, block the
appliance on the gas side and notify the gas supplier.
▶ Press the emissions test button
The display returns to the supply temperature.
▶ Switch the appliance OFF, turn off the gas cock, remove the pressure
gauge and tighten the screw in the test port for gas inlet pressure.
▶ Reinstall the cover.
6 720 810 590 (2015/05)
until it lights up.
=
.
=
Permissible pressure range
for maximum nominal output
" W.C. (mbar)
3.5-10.5 (8.7-26.1)
8-13 (19.9-32.3)
until the light goes out.
13 Flue gas test
13.1

Emissions test button

The following appliance outputs can be selected by pressing the
emissions test button until it lights up:
3 4
2 5
1 6
max
Fig. 76 Press the emissions test button
• = Maximum set output in heating mode (à Maximum heating
output, page 57)
• = Maximum nominal output
• = Minimum nominal output
You have 15 minutes to complete the tests. After that,
the appliance returns to default mode.
13.2

Measuring CO content of flue gas

Use a multiport flue gas probe for the measurements.
▶ Open one of the flue gas test ports ( Fig. 71).
▶ Insert the flue gas probe approx. 2-3/4 inches (70 mm) into the test
port and seal around it.
▶ Press the emissions test button to select
output.
▶ Measure the CO levels.
DANGER: Risk of flue gas poisoning.
The CO level in the flue gas must be below 200 ppm (air
free).
1)
▶ If 9.4 Vol.% CO
can not be achieved due to the gas supplied, use a
lower CO level with CO emissions under 200 ppm
2
(af) instead.
1) 9.4 Vol.% with NG and 11.0 Vol.% with LPG (propane)
▶ Repeatedly press the emissions test button
out.
The display returns to the supply temperature.
▶ Remove flue gas probe and close the flue gas test port properly.
reset
eco
3 4
e
2
6
1
min max
6 720 641 933-51.1O
= maximum nominal
and a CO level under 200 ppm (af)
2
until the light goes
Greenstar FS