Operating instructions

3. Burner operating modes :

To gain access to the switches it is necessary to remove the

facia:

remove the main case

pivot the electrical box forwards

remove the pressure gauge clip noting its position

replace elecrical box in its upright position

remove the two screws and unclip the fascia from the

electrical box

remove the rubber grommet to gain access to the switches

PCB adjustments (fig. 14) :

Four switches are gathered together on the regulation PCB

and labled SW4.

3 min

TUR

Pmin

Fig. 14

factory setting

Switch 1 TAC selects Central heating anticycling delay

either 3 min (factory setting) or 30 see

Switch 2 TIC selects delay switching from DHW to C/H

either 30 see (factory setting ) or 3 min

Switch 3 selects the modulation of the Burner.

NOR means normal modulation (off - l/3 - full on) factory

setting

TUR means Full On or Off mode

Switch 4 selects Central heating power limitation

Pmax means the boiler could provide full power for

heating - factory setting

Pmin means power for heating is limited to 113 only

When settings have been made replace the rubber grommet

and refit all components in

the reverse order.