Further details regarding the individual steps
Adjusting the air volume
The air volume is preset at the factory. If required, adjust the air volume; for
this, initially adjust the air volume for stage 2.
Initial start−up, inspection and maintenance
Fine adjusting stage 2
Regulate the air volume at set
screw A to adjust the mixing
assembly:
H Anti−clockwise
³ larger cross−section
³ more air,
H Clockwise
³ smaller cross−section
³ less air.
(cont.)
15