BC10 basic controller
10
Installation instructions Logamax plus GB142-24/30/45/60 • version 10/2007
45
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10.3.4 Setting the pump post-purge period
A pump must be connected to PK (see fig. 29, pos. 7) of the
external connection board in order to be able to set the
pump run over time.
z
Press and hold the "Chimney Sweep"
d
and "Service"
e
buttons until the display shows "
L--
".
z
Press the "Service"
e
button. The display shows "
F05
".
The heating system has been factory-set to a pump post-
purge period of 5 minutes.
z
Press the "Chimney Sweep"
d
or "Reset"
c
buttons to
set the pump post-purge period. The pump post-purge
period can be set from 5 – 60 minutes (
F 5
-
F60
) or to
24 hours (
F1d
).
z
Press the "Service"
e
button to confirm the setting.
CAUTION
– Set the boiler primary pump post-purge
period to 24 hours if the heating system is
controlled by room temperature sensor and
there is a risk of parts of the heating system
that are outside the coverage of the room
thermostat freezing (e. g. radiators in a
garage; constant circulation).
+
/
NOTICE
On thermostat only systems a 5 to 10 minute
post-purge setting is recommended to purge
heat from the boiler.