Co Check/Adjustment Via Pump Pressure - Wolf COB Technical Manual And Installation Instructions

CO settings via
2
pump pressure
Adjusting the CO value in the
2
upper load range (stage 2)
(emissions test mode)
Danfoss oil pump
Pressure regulating
screw, stage 2
Oil pressure
test connection
Vacuum
measurement
connection
Suntec oil pump
Vacuum
measurement
connection
Oil pressure
test connection
Pressure regulating
screw, stage 2
Adjust the CO value in the
2
lower load (stage 1)
Danfoss oil pump
Suntec oil pump
52
33 CO
pressure
If no control accessory is connected to the appliance or the CO
not achieved by matching the pipe lengths, the CO
pressure control:
- Remove front and top casing.
- Pivot the control unit downwards.
- Insert the oil pressure gauge into the pump's pressure gauge test port.
- Remove the cap from the r.h. "flue gas" test port.
- Insert the test probe of the CO
70 mm).
- Turn the heating water temperature selector to "Emissions test"
(illuminated signal ring as status indicator flashes yellow.)
- Measure the CO
table below.
- If required, amend the CO
a 4 mm Allen key (Danfoss design) or SW 8 open-ended spanner (Suntec design).
Turn clockwise - higher CO
Turn anti-clockwise - lower CO
- 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. 2 min. after the burner starts, measure the CO
equipment and compare it against the values given in the stage 1 table below.
- If required, amend the CO
a 4 mm Allen key (Danfoss design) or SW 8 open-ended spanner (Suntec design).
Take this measurement within 4 s. 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
Turn anti-clockwise - lower CO
Pressure
Appliance open
regulating
screw
Stage 1 Set CO value
2
O set value
2
Appliance open
Pressure
Stage 2 Pump pressure 12.0 ± 2.5 bar 16.8 ± 2.5 bar 16.8 ± 2.5 bar 23.5 ± 2.5 bar
regulating
screw
Stage 1 Pump pressure 5.0 ± 1.0 bar 8.5 ± 1.0 bar 8.5 ± 1.0 bar 11.0 ± 1.0 bar
Stage 1
The pump pressure in stage 2 must always be greater than that in stage
Note
1 to prevent damage to the oil pump.
- Check whether the pump pressure is still within the tolerance range. If not, then check
the oil 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.
check/adjustment via pump
2
measuring instrument into the "flue gas" test port (approx.
2
content and compare it against the values given in the stage 2
2
content with the pressure regulating screw stage 2 with
2
value
2
value
2
content with the pressure regulating screw stage 1 with
2
value
2
value
2
COB-15
Stage 2
Stage 1
Stage 2
Stage 1
COB-15
2
setting is made via pump
2
.
content with the CO
2
COB-20 COB-29
12,7 ± 0,3%
12,7 ± 0,3%
3,8 ± 0,4%
3,8 ± 0,4%
COB-20 COB-29
3062547_201802
set value is
test
2
COB-40
COB-40