High Limit Temperature Protection - REMEHA Avanta Range 24c Installation & Service Manual

8.3.4 Low flow / water protection
The Remeha Avanta Plus has a low-water protection based on
temperature readings. By modulating down as soon as there
is a risk of an insufficient water flow, the boiler will keep work-
ing for as long as possible. An insufficient water flow, however
caused, - indicated by a flow/return dt ] 45°C or a rate of
rise in the flow temperature > 1°C/sec – will be sensed by
the 'abc control which will shut the boiler down in a blocking
®'
mode with the display showing (code 9) for 10 minutes and
before re-starting.
If there is no water in the boiler or if the pump is not running, it
will go to lock out (code é7) and require manual re-set.
8.3.5

High Limit temperature protection

If the flow temperature exceeds 110°C the high limit tempe-
rature protection device switches off the boiler in a lock out
mode with the display showing (code é1) This mode will
require a manual re-set.
When the fault is corrected, the boiler can be restarted by
pressing the reset-key on the control panel and holding for 3
seconds.
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