Supplied By www.heating spares.co Tel. 0161 620 6677
30
Linea Plus AG
8.23
Setting Gas Pressures
ALL SETTINGS DONE WITH A SUITABLE
MANOMETER CONNECTED TO GAS
VALVE AS INSTRUCTED IN 6.6.5.
8.23.1
Setting Maximum Rate
Turn off electrical supply to boiler and follow
instructions in section 8.4 to gain access.
Refer to fig. 22 & 36.
Turn on the electricity supply and the appli-
ance mode selector switch to
remove gas
pressure adjustment protective cover (fig. 36).
Turn on fully a domestic draw off tap.
The boiler will now light at full flame. Screw the
outer nut (a) on the end of the modulator coil
slowly clockwise until the burner lights.
Adjust the nut until the correct pressure is
obtained on the gauge. The correct reading
should be:
10.1 mbar
plus or minus 1.0 mbar
8.23.2
Setting Minimum Rate
Remove one of the grey wires connecting to
the modulator coil. The gas pressure will now
be at the minimum rate.
Turn the inner minimum adjusting screw (b)
anti clockwise to decrease the pressure, or
clockwise to increase the pressure until the
minimum gas pressure is achieved, (ensure
when adjusting the inner screw the outer nut
(a) is held in position) the correct reading
should be:
1.1 mbar
plus or minus 0.11 mbar
Replace the grey wire back onto the modula-
tor coil together with the protective cover.
Fig. 36
Gas pressure adjustment
protective cover
Maximum pressure
adjustment screw (a)
Minimum pressure ad-
justment screw (b)