Baxi Luna 3 Comfort Series Installation And Servicing Instructions page 11

1. Locate the flue elbow on the adaptor at the top of the
boiler. Set the elbow to the required orientation (rear,
right or left).
. Measure the distance from the outside wall face to the
elbow (Fig. 3). This dimension will be known as 'X'.
3. Taking the air duct, mark dimension 'X' as shown (Fig. 4).
Measure the length of waste material, and transfer the
dimension to the flue duct (Fig. 4).
4. Remove the waste from both ducts. Ensure that the cut
ends are square and free from burrs.
5. Remove the flue elbow from the adaptor.
IMportant: Check all measurements before cutting.
Clearance to combustible materials when using concentric
system is zero.
Fig. 4
InstructIons pertaInInG to tHe Installer
Wall Thickness
(X)
Fig. 3
Waste
(X)
Air Duct
Waste
Flue Duct
11
(X)
Wall Thickness
95.188.3 - GB