Bosch Therm 6000 S - Adjusting CO₂ (Carbon Dioxide)

6 720 800 095 (2014/05)Therm 6000S
Installation instructions | 27
 Press and hold "Program" button and press ON/OFF button
to turn appliance ON (Fig. 42).
Fig. 42 Gas tunning mode
 As soon as '188' is displayed, release "Program" button
, and the display reads P2.
 Press or until P1 appears.
For inlet gas pressure adjustment see values in Table 8 :
 Turn on high volume of hot water ow (at least 15 l/m) and
burner will light. If heater display reverts to P2, open more
hot water xtures to allow sucient ow. Press until
P1 reappears on the display.
 Operate all other gas appliances on same gas piping system
at maximum output.
 Record lowest operating gas pressure reading in Table 7 .
Gas pressures lower than 2,0 kPa for Natural Gas or 3,0 kPa
for Butane will result in insu
icient degree rise to the hot
water being used, reduced hot water volume, possible error
code faults and must be corrected.
Check gas pipes dimensions.
8.3 Adjusting CO
2
(carbon dioxide)
When the gas pressure is correct:
 Press ON/OFF button to turn o the appliance.
 Remove plastic screw on the exhaust collar as seen in
Fig. 43.
Fig. 43 Measuring port
 Insert CO
2
analyser probe into the measuring port. The tip of
the probe should be in the center of the ue pipe (approx
40mm inserted). Avoid air gaps between probe and
measuring port as they can alter readings.
 While holding the Program (P) button, press the ON/OFF
button to turn ON the heater (see Fig. 44).
Fig. 44
 While holding the Program button, press the ON/OFF
button to tur
n ON the heater. As soon as ‘188’ ashes on the
display, release the Program button. The display should now
read P2.
 Press or button until “P1” appears on display.
NOTE: While in this mode the appliance will
run constantly at maximum power and allow
maximum water ow.
Gas type GN Butane
kPa 2,0 3,0
Table 8
The CO2 can only be adjusted by a certied
gas technician with a calibrated CO
2
analyser.
CAUTION:
One factor that may aect CO
2
levels is
improper gas pressure.
 Check and adjust gas pressure, see
chapter 8.2.
6720608 920-18.1AL