Noritz CB199-DV Owner's Manual

Also see for CB180-DV: Installation manual

311. Cleaning Air Intake FilterTo properly maintain the Combi Boiler, check air intake filter every month. If not, a problem with combustion combustionspecifications will occur.To clean air intake filter:1. Press the ‘Power Button’ on the control panel to turn off theCombi Boiler.2. Disconnect the power supply from the Combi Boiler.3. If Combi Boiler has been operating, wait for it to cool beforecontinuing4. Remove the 4 screws on the front cover of the Combi Boiler.5. Remove the filter screen screw and pull the filter out of theair intake.6. Clean it with a toothbrush and clean running water.7. Dry the filter completely. Then reinsert the filter into the plastic assembly and tighten the filter screen screw.8. Replace the front cover of the Combi Boiler cabinet. Reconnect power supply to the Combi Boiler.9. Press the ‘Power Button’on the control panel to turn on the Combi Boiler.Maintaining the Combi BoilerChapter 4. – Maintenance2. Cleaning the Combi BoilerTo clean air supply vent:Check for debris or blockage from dust, oil, etc. at the air supply vent. If blocked, remove the build-up with a vacuum cleaner or damptowel. (Do not permanently remove the inlet screen.)2. When supplying combustion air from the indoors.