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13
The CONTROL mode can be active both
during manual and automatic (Fuzzy Logic)
regulation.
The regulator switches into the CONTROL
mode automatically, without the user’s
interference:
- in
Standard
regulation mode
–
after
reaching the preset boiler temperature,
- in
Fuzzy logic
regulation mode
–
after
exceeding the preset CH temperature by +
5°C.
In the Fuzzy logic mode, the regulator
tries not to switch into CONTROL and to
supply as much heat as the CH system
requires at the time.
In the CONTROL mode, the regulator
supervises the furnace, so that it would not
go out. For this purpose, the airflow and the
feeder are activated only once in a while,
less frequently than in the OPERATION
mode. There is no further increase in
temperature.
The airflow does not work continuously, it is
enabled cyclically, together with the fuel
feeder, which prevents the flame from going
out during the boiler standstill.
Drawing 12 View of the main window in the CONTROL
mode
Drawing 13 Fan and feeder operation cycles in the
CONTROL mode
The interval between operations of airflow
and feeder is determined by the parameter
feed interval CONTR
available in:
MENU -> FEED INTERVAL CONTR
This time should be set in accordance with
the boiler manufacturer’s recommendations.
The time should be chosen bearing in mind,
that too long an interval can make the
furnace fall in during the boiler standstills,
yet setting an insufficient time will lead to an
increase in the boiler temperature. The
feeder and airflow operation time in the
CONTROL mode is set using the parameter
feed time CONTR
, available in:
MENU -> SERVICE SETTINGS -> BOILER
SETTINGS ->FEED TIME CONTR
The time of
extend fan time
in order to fire
up the fuel after is has been fed is set in:
MENU -> SERVICE SETTINGS -> BOILER
SETTINGS -> EXTEND FAN TIME
Set the parameters
feed interval
CONTR, feed time CONTR
and
extend fan time
to allow the boiler
temperature gradually drop in this
mode. Wrong settings can make
the boiler overheat.
The regulator automatically extends
the time of
feed interval CONTR
by
half if the boiler temperature
exceeds the preset CH temperature
by 3
o
C, and extends it twofold if the
boiler temperature exceeds the
preset boiler temperature by 5
o
C.
In the CONTROL mode, the fan works with
identical power as in the OPERATION mode,
equal to the
fan power
parameter.
If in this mode the room thermostat
disconnects its contacts, thus signalling that
the preset temperature has been reached,
then the regulator:
·
lowers the preset CH temperature by
the
parameter
decrease
in
temperature on account of thermostat
(MENU -> SERVICE SETTINGS ->
PASSWORD -> BOILER SETTINGS ->
ROOM THERMOSTAT),
·
disables the CH pump for the
CH
pump start temp. with thermostat on
(MENU -> SERVICE SETTINGS ->
PASSWORD -> CH/DHW SETTINGS -
> CH STANDSTILL.
Summary of Contents for ecoMAX 80 R1
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