6 Check to see if the overheat thermostat has operated (see
note 4 in Section 3.6).
7 Check that the black pointer on the pressure gauge is not
below the red pointer.
8 If the heating system water pressure falls below 0.2 bar the
boiler low pressure cut-out switch will activate and an
amber neon on the control panel (see Fig. A or B) will light.
The system must be recharged to between 0.5 and 1 bar. If
the heating system loses pressure on a
regular basis then contact your Installer to
investigate the cause.
4.7
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Boiler dimensions - Outdoor Combi 90 V3 and Combi Max
Fig. 1
Fig. 2
4.8
\
Water schematic of boiler - Outdoor Combi 90 V3 and Outdoor Combi Max
12
Outdoor Combi 90 V3, Combi Max and Condensing Combi
4 – BOILER TECHNICAL INFORMATION
