Plum ecomaxx 800 R2 User Manual

11
7.8 OPERATION–Fuzzy Logic mode
Upon change of boiler regulation mode from
Standard to Fuzzy Logic, regulator works in
OPERATION mode and modulates the boiler
output to achieve constant preset boiler
temperature.
Fuzzy logic regulation mode may be set in:
MENU Boiler Settings Burner Settings
Regulation Mode
Please note Fuzzy Logic program is adapted
individually to the given boiler and fuel type
and may work properly only with this boiler
and fuel. Therefore, Fuzzy Logic mode
requires special settings and has to be
activated by the boiler manufacturer in
accordance with sec. 21.1. In case this mode
has not been activated, it will not be
available.
Fuzzy Logic correction
In some instances, Fuzzy Logic mode has to
be adjusted to the fuel quality. To make the
correction, use the following parameters: FL
fuel correction and FL airfl. correction which
are available in:
MENU Boiler Settings Burner Settings.
At first adjust FL fuel correction. If the fuel is
of poor quality and incompletely burnt fuel
particles are present in ash, reduce the rate
of supplied fuel; in the contrary case -
proceed in analogical manner.
Note: incompletely burnt fuel particles or
lowered furnace may be also caused by
improper boiler operation in SUPERVISION
mode. Therefore, prior to correcting Fuzzy
logic it is recommended to adjust parameters
of SUPERVISION mode in accordance with
sec. 7.9.
Activation of Fuzzy Logic mode of
regulation does not release from
the requirement to adjust the
parameters of SUPERVISION
mode – risk of screw feeder
damage.
Switching off output modulation in Fuzzy
Logic
In case the regulator works in SUMMER
mode of operation or with a little heat
demand (in Spring and Autumn), modulation
of boiler output is not justified. To switch-off
the boiler output modulation in Fuzzy Logic
mode of regulation - set both parameters:
Min. boiler output FL and Max. boiler output
FL at the same value - e.g. 80%. The boiler
starts operation without output modulation
and upon achievement of preset temperature
enters SUPERVISION mode.
Boiler output in Fuzzy Logic
In case of boiler operation in conditions of
little heat demand, fuel consumption may
increase. It is a result of the fact that the
output modulation algorithm reduces boiler
output to the minimum, at which boiler
efficiency is much lower than in case of the
rated output. In such instances, it is
recommended to reduce permitted range of
boiler output so that it will not work at the
minimum output. The range of boiler output
is defined by the parameters: Min.boiler
output FL and Max.boiler output FL
available in: MENU Boiler Settings
Burner Settings.
E.g.:
Min.boiler output FL (Min. moc kotła
FL)=40% (factory setting: 0%)
Max.boiler output FL =100%(factory setting:
100%)
7.9 SUPERVISION
SUPERVISION mode is available for both
modes of regulation: with manual and
automatic settings (Fuzzy Logic). Regulator
automatically enters SUPERVISION mode
without any user's intervention, namely:
- in case of Standard mode of regulation–
upon achievement of boiler preset
temperature,
- in case of Fuzzy logic – once actual
temperature has exceeded the boiler preset
temperature by 5°C.

Plum ecomaxx 800 R2 Specifications

General

Brand	Plum
Model	ecomaxx 800 R2
Category	Thermostat
Language	English