The left-hand knob is for burner flame adjustment. Turning it anticlockwise should
gradually increase the flame height.
The flame height control does not have to be re-set every time the fire is lit. It can be
kept at any position enabling the customer to use the right hand control only to ignite
the burner at the set flame height.
After checking turn the right hand knob to off. Depress the control knob partially at the
pilot position (
), turn clockwise to off (
•
) and release the knob. If any resistance
is felt when turning, release the downward pressure on the knob before continuing to
turn.
14.3 Checking inlet pressure.
The burner aeration is non-adjustable. The
appliance is preset to give the correct heat
input on Natural Gas at 20 mbar (8in w.g)
inlet pressure and no further adjustment is
necessary. The burner pressure should be
checked at the pressure test point located on
the inlet ‘T’ connector (See figure 28). The
pressure check should be carried out using a
calibrated pressure gauge after removing the
test point screw. The fire should be alight and
the left hand control knob at its fully
anticlockwise setting (Maximum flame
height). The pressure setting should be within the limits shown in section 2 of this
manual (Appliance data). After checking the pressure, turn off the fire, remove the
pressure gauge and replace the pressure test sealing screw. Relight the fire and test all
gas joints for soundness using a suitable leak detection fluid.
Page 30
INSTALLER GUIDE
©
Baxi Heating U.K. Limited 2007.
Figure 28. Pressure test point