Wolf COB-2 - Testing the CO 2 Levels with the Casing Closed; Commissioning Cascade; Setting the Ebus Address in the Programming Unit or Display Module; Check that the Flue Gas Damper Is Functioning Properly

Commissioning
54 | WOLF GmbH 3066501_201910
Values are within the values of Table 6.2 Pump pressure:
✔ pump pressure is acceptable.
► End emissions test mode.
► Remove the oil pressure gauge.
► Fit casing.
i
If the stage 2 or stage 1 pump pressure was adjusted, the CO
2
must be congured and tested
(6.7.5 Testing the CO
2
levels with the casing closed).
6.7.5 Testing the CO
2
levels with the casing closed
► Fit casing.
► Select parameter HG47 in the contractor level (BM-2) or the contractor menu (AM).
Stage 1:
► Measure the value.
► Compare value with Table 6.3 Set value with casing closed.
► Exit parameter HG47.
► Select parameter HG49 and repeat measurement.
HG Casing closed CO
2
max. O
2
min. CO level max.
47 Stage 1 13.5 % 2.7 % 50 ppm
49 Stage 2 13.5 % 2.7 % 50 ppm
Table 6.3 Set value with casing closed
CO
2
levels increase beyond CO
2
max.:
► Check balanced ue.
Measurements acceptable:
► Exit parameter HG49.
► Enter ue gas values in 12.1 Commissioning report.
► Remove the test probe.
► Close the test port. When doing so, ensure the caps are seated rmly!
6.8 Commissioning cascade
BM-2 programming unit installation and operating instructions for contractors
AM display module installation and operating instructions for contractors
KM-2 cascade module installation and operating instructions for contractors
6.8.1 Setting the eBus address in the programming unit or display module
NOTE
Duplicated eBus address!
System faults.
► Assign the eBus address once.
Address 1 is assigned as standard for all heat generators.
► Select parameter HG10 in the contractor level (BM-2) or the contractor menu (AM) of each heat
generator.
► Assign addresses 1 to 4.
6.8.2 Checkthattheuegasdamperisfunctioningproperly
► Set parameter HG13 (input 1) to Fl. gas damper.
► Set parameter HG14 (output 1) to Fl. gas damper.
► Check that the ue gas damper opens during operation.
► Disconnect E1 for two minutes during operation (see wiring diagram Fig. 12.3 HCM-2 electrical
connection).
✔ The heat generator will deactivate and be locked out with fault code 8.
✔ The fan will continue to run at a low speed.
► Reconnect E1.
► Acknowledge fault message.
► Check that the ue damper closes when the system is on standby.