Checking The Aeration Setting Of The Burner - Valor 639 Installer's Manual

CHECKING THE AERATION SETTING OF THE BURNER.

• The aeration setting on the burner is different
depending on the fuel bed used. The aeration
setting is factory set.
• If a 'Pebble' fuel bed is used, the aeration collar
should be positioned so that the opening in the
rear of the mixer tube is fully open.(See figure
47)
• If a 'Coal' fuel bed is used, the aeration collar
should be positioned so that the opening in the
rear of the mixer tube is partially closed. Slide
the aeration collar towards the injector as far as
it will go. The gap should be 4mm (See figure
47)
TO REMOVE THE BURNER UNIT
• Remove the firefront and place in a safe
position.
(Models with 'Coal' effect fuel bed)
• Remove the 12 loose coals, the front coals and
the coal matrix. Place in a safe position.
(Models with 'Pebble' effect fuel bed)
• Remove the 16 loose pebbles, the front pebbles and the base. Place in a safe position.
• Close the valve in the inlet elbow.
• Disconnect the appliance from the inlet elbow.
• Remove the front leg fastening screws (See figure 7 or 8 depending upon method of
fix).
• Lift the burner out of the fireplace opening.
• Replace in the reverse order.
TO REMOVE THE ODS PILOT UNIT
• Remove the burner unit - See previous.
• If lying the burner on its back make sure that the surface it is placed onto is protected
from being scratched.
INSTALLER'S GUIDE
Page 34
Figure 47 Aeration collar