Valor Ultimate Turbochim BR517S Installer's Manual page 31

15.9 For Access to the Electrical Control Components
15.9.1 Remove the burner unit - See section 15.4.
15.9.2 Detach the control unit from the convection box left side flange
by removing two screws (see figure 50). Carefully pull the unit slightly
forward.
15.9.3 Detach the fan wiring loom connection. (see figure 51).
15.9.4 Detach the plastic vacuum tube from the metal vacuum pipe
(see figure 51).
15.9.5 Detach the control unit cover by removing one screw (see figure
52).
15.9.6 The control unit can be pulled forward as far as the slack
in the mains lead will allow. Do not stress the mains lead.
15.9.7 When replacing the unit make sure that all the leads are
correctly and firmly connected (see wiring diagram figure 31),
that no leads are trapped and that the vacuum tube is firmly
connected.
15.10 To Remove the Distribution block
15.10.1 To gain access see section 15.9.
13.10.2 Remove the two screws fixing the block to the control
bracket.
15.10.3 Disconnect the earth lead from the control bracket.
15.10.4 Remove the cover from the air pressure switch (see
figure 53)
15.10.5 Disconnect the three leads (Yellow, orange & white) from the
air pressure switch.
15.10.6 Disconnect the two leads (Brown & blue) from the mains cable
connection block.
15.10.7 Replace in the reverse order. Make sure that all the leads are
correctly and firmly connected (see wiring diagram figure 31), that no
leads are trapped and that the vacuum tube is firmly connected.
15.11 To Remove the Air Pressure Switch
15.11.1 To gain access see section 15.9.
15.11.2 Detach the pressure switch from the control bracket by
removing two screws, nuts & washers (see figure 54).
15.11.3 Remove the cover from the air pressure switch (see figure
53)
15.11.4 Disconnect the three leads (Yellow, orange & white) from
the air pressure switch.
15.11.5 Detach the plastic vacuum tube from the pressure switch.
Make sure that the vacuum tube is connected to the shank
i)
on the pressure switch closest to the centre of the appliance
(marked ) - not the shank closest to the control bracket.
ii) Make sure that all the leads are correctly and firmly connected (see
wiring diagram figure 31) and that no leads are trapped.
Figure 50 Electrical control unit
Figure 51 Fan loom & vacuum pipe
connection
Figure 52 Control cover fixing
Fig. 53
Figure 54 Pressure switch
31
fixings