Electrodes; Plate Heat Exchanger; Seals - Baxi Luna 3 Comfort Series Installation And Servicing Instructions

1. Remove the four screws securing the combustion box door and remove the door.
. Undo the screws securing the burner to the injector manifold. Draw the burner out of the combustion box, pulling the
electrode grommets from the slots in the combustion box lower panel.
3. Disconnect the lead and grommet from the electrode being replaced. Undo the securing screw and withdraw the
electrode to the burner.
4. Reassemble in reverse order.
Electrode Grommets
1. Drain the primary circuit.
. While supporting the heat exchanger undo the screws securing it to the brass manifolds.
3. Withdraw the heat exchanger upwards and to the left of the gas valve, taking care not to damage any wires or con-
trols.
1. There are four rubber seals between the manifolds and heat exchanger which may need replacement.
. Ease the seals out of the manifold. Replace carefully, ensuring that the seal is inserted into the manifold parallel and
pushed fully in.
3. When fitting the new heat exchanger note that the left hand location stud is offset towards the centre more than the
right hand one.
4. Reassemble in reverse order.
InstructIons pertaInInG to tHe Installer

14.5 - electrodes

Electrodes
Electrode Leads

14.6 - plate heat exchanger

14.7 - seals

33
(fig. 33)
Inlet Elbow
Injector Manifold
Injector
Burner
Fig. 33
Gasket
95.188.3 - GB