Wolf COB - Page 43

43
3062547_201507
Completingtheadjustments
- Shut down the boiler and close the test ports again.
- Check the control parameters and match them to the system if necessary.
- Check the condensate drain.
- Instruct the customer in the operation of the boiler, with the aid of the operating
instructions.
- Complete the commissioning report (chapter 29) and hand over the instructions to
the customer.
- Instruct the customer about the need for annual servicing.
- Instruct the customer about energy saving options.
- Refer your customer to section "Information regarding energy efcient operation" in
the operating instructions.
- Check whether the pump pressure is still within the tolerance range.
If not, then check the nozzle and mixer head.
- Terminate the emissions test mode by turning the DHW temperature selector back
to its original position.
- Press the reset button.
- Set the heating water temperature selector to 8.
- Approx. 60 seconds after the burner start, check the CO
2
content with the CO
2
measuring instrument.
- If required, alter the CO
2
content with the stage 1 pressure regulating screw using a
4 mm Allen key.
Testing must be carried out within 240 seconds of the burner start. If necessary, repeat
the start phase for setting procedures by turning back the heating water temperature
selector and pressing the reset button.
Turn clockwise - higher CO
2
value
Turn anti-clockwise - lower CO
2
value
28. CO
2
check/adjustmentviapump
pressure
- After completing the work, ret the casing lid and check the CO
2
value with the
boiler closed.
ObservetheCOemissionswhilstmakingCO
2
adjustments.TheCO
valueshouldbe<50ppmiftheCO
2
valueiscorrect.
- The condensing boiler is correctly adjusted when the CO
2
values correspond to
those in the adjacent table.
- If the CO
2
value increases too greatly, the balanced ue must be checked.
- Enter the ue gas values of CO
2
, ue gas temperature and soot value in the
commissioning report in chapter 29.
Checking the CO
2
adjustment
AdjusttheCO
2
valueinthe
lowerload(stage1)
- Check whether the pump pressure is still within the tolerance range. If not, then check
the nozzle and mixer head.
- Terminate boiler operation by turning the heating water temperature selector back
to its original position.
- Remove the oil pressure gauge and close the aperture again.
Appliance open COB-15 COB-20 COB-29 COB-40
Stage 2 CO
2
set value 13.2 ± 0.3% 13.2 ± 0.3% 12.7 ± 0.3% 12.7 ± 0.3%
Stage 1 CO
2
set value 13.2 ± 0.3% 13.2 ± 0.3% 12.7 ± 0.3% 12.7 ± 0.3%
Appliance open COB-15 COB-20 COB-29 COB-40
Stage 2 Pump pressure 12.0 ± 2.5 bar 16.8 ± 2.5 bar 16.8 ± 2.5 bar 23.5 ± 2.5 bar
Stage 1 Pump pressure 5.0 ± 1.0 bar 8.5 ± 1.0 bar 8.5 ± 1.0 bar 11.0 ± 1.0 bar
Thepumppressureinstage2mustalwaysbegreaterthanthatinstage1
Appliance closed COB-15 COB-20 COB-29 COB-40
Stage 2 CO
2
set value 13.5 ± 0.3%
Stage 1 CO
2
set value 13.5 ± 0.3%
Pressure
regulating
screw, stage 1
Pressure
regulating
screw, stage 1
Pump Danfoss
Pump Suntec