Check That The Flue Cascade Dampers Are Free Of Leaks - Wolf COB-2 Operation Instructions Manual

Commissioning
6.8.3 Check that the flue cascade dampers are free of leaks
DANGER
Escape of flue gases!
Risk of asphyxiation or severe to life-threatening poisoning.
► The flue cascade dampers must be checked for leaks once a year in positive pressure systems.
Fig. 6.7 Flue cascade
Check for leaks on adjacent appliances
q
Check for leaks on adjacent appliances (1)
► Switch the second, third and fourth heat generator to standby:
– Select the heating circuit status page in the BM-2 programming unit.
– Select the rotary selector icon and switch to Standby.
✔ The heat generators will switch to standby mode.
► Press the emissions test quick start button to turn the first COB-2 on.
✔ COB-2 turns on.
► Wait for at least 5 minutes.
► Measure the CO
– Remove cap from inlet air test port.
– Insert test probe 2 cm.
– Measure CO
CO value exceeds 0.2% in the first 15 minutes, there is a leak in the flue system.
2
► Find and fix the leak.
► Measure the CO
CO level remains below 0.2%, no leak in the flue system:
2
► End emissions test mode
✔ The heat generator shuts down.
► Close the test ports. When doing so, ensure the caps are seated firmly!
Check first heat generator for leaks (2)
► Press the emissions test quick start button to turn the second COB-2 on.
✔ COB-2 turns on.
► Wait for at least 5 minutes.
► Measure the CO
– Remove cap from inlet air test port.
– Insert test probe 2 cm.
– Measure CO
CO value exceeds 0.2% in the first 15 minutes, there is a leak in the flue system.
2
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1
2
level for the second, third and fourth heat generator:
2
value.
2
level again.
2
level for the first heat generator:
2
value.
2
Check first heat generator for leaks
w
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