BWB XP - Mixing Chamber

Maintenance
Mixing Chamber Cleaning
The Burner must be completely cool before proceeding further.
1. Remove the Nebuliser from Mixing Chamber.
2. Disconnect the U-tube from Mixing Chamber.
3. Disconnect the blue gas tube from the mixing chamber (this can
be a stubborn fit, be careful to pull in a straight direction and do
not twist to prevent snapping the barb)
4. Gently spread the Release Tabs on the upper part of the mixing
chamber just enough to clear the groove they are in and pull the
Mixing Chamber down away from the burner.
5. Separate the Mixing Chamber halves by undoing the two screws
that hold them together using a T20 Torx driver.
6. Note the orientation of the baffle in the lower half of the mixing
chamber and carefully remove the baffle. (it is essential the baffle
is replaced after maintenance in the same orientation – grooves
located).
7. Remove the Quad-ring from the groove in the lower half of the
mixing chamber.
8. Clean all parts with a detergent solution, de-proteinizing solution,
and/or Decon 90® (2-5% mix with deionised water). DO NOT use
organic solvents or alcohol as they may damage the mixing
chamber body.
9. Rinse all parts well with deionised water.
10. Inspect the Quad-ring for any signs of deterioration or
compression. Replace if necessary. Do not lubricate the o-ring in
any media apart from DI water.
11. Make sure the Baffle is pushed securely and squarely into the
lower half of the Mixing Chamber. it is essential the baffle is
replaced after maintenance in the same orientation – grooves
located.
12. Refit the Quad ring into the groove on the lower half of the mixing
chamber.
13. Inspect the gauze for any signs of deterioration and replace if
necessary (018-104).
14. Place the gauze in the top of the mixing chamber.
15. Locate the top and bottom of the mixing chamber sections together
and secure with the two screws removed earlier. Do not
overtighten.
16. Refit the Mixing Chamber into position on the Burner Tube,
ensuring the tabs locate securely into the retaining groove.
17. Refit the U-tube and Nebuliser assembly.
45
Release Tabs
Gauze
Quad Ring
Baffle
Note baffle slot locations