Co Check/Adjustment By Matching The Pipe Lengths - Wolf COB Technical Manual And Installation Instructions

CO adjustment by
2
matching the pipe lengths
Adjusting the CO value in the
2
upper load range (stage 2)
(emissions test mode)
CO check/setting in the lower
2
load (stage 1)
3062547_201802
31 CO check/adjustment by matching
2
the pipe lengths
With contractor parameter HG 00 (see chapter 19 "Contractor level parameters"),
the appliances can be matched to the flue system by changing the speed for
both stages and therefore the CO
- Remove front and top casing.
- Remove the cap from the r.h. "flue gas" test port.
- Insert the test probe of the CO
(approx. 70 mm).
- Turn the program selector switch on the BM module to "Emissions test"
(Illuminated signal ring as status indicator flashes yellow.)
- Measure the CO content and compare it against the values given in the stage 2 table
2
below.
- If required, alter the CO content with parameter HG00.
2
HG 00 CO adjustments
2
Factory setting: 3
1 2 3
Higher CO value
2
- Modifying the parameter HG00 has also adjusted the speed for stage 1. For
checking purposes, the boiler must be set to stage 1.
- Switch HG28 burner operating mode from 2(two-stage) to 1(single stage).
- Measure the CO content and compare it against the values given in the stage 1
2
table below.
Appliance open
Stage 2
Set CO
2
value
Stage 1
Stage 2
O set value
2
Stage 1
- If the value lies outside of the set value, the CO
via the pump pressure (see Commissioning without Wolf control accessories).
- Reset HG28 burner operating mode from 1 to 2.
value can be changed.
2
measuring instrument into the "flue gas" test port
2
4 5
Lower CO value
2
COB-15 COB-20
12,7 ± 0,3%
12,7 ± 0,3%
3,8 ± 0,4%
3,8 ± 0,4%
-value must be set
2
.
COB-29 COB-40
49