Pereko KSP Duo, Руководство по эксплуатации и обслуживанию

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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 =40% (factory setting:
0%)
Max.boiler output FL= 100% (factory setting:
100%)
7.8 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.
In SUPERVISION mode, the regulator
supervises that the fire in the furnace has
not damped. For this purpose, the fan and
the feeder work intermittently and operate
for a certain time, less frequently than in
OPERATION mode. This does not cause any
further temperature increase.
The fan does not work continuously, and is
switched on along with the fuel feeder
periodically, which prevents fire damping in
the furnace during boiler shut-down.
Cycles of fan and feeder operation in SUPERVISION
mode; C
– Feeder Interval - Superv. , D – Feeding Time-
Superv. , E – Blow-in operation extending- Superv .
Duration of break in fan and feeder operation
is defined by the parameter:
Feeder Interval
- Superv. , which is available in:
MENU Boiler Settings Burner
Settings .
This time should be set in accordance with
the
recommendations of the boiler
manufacturer, and so selected that (i) the
furnace does not lower during boiler shut-
down and (i) the time is sufficient to prevent
increase of the boiler temperature. Other
parameters are available in:
MENU Service Settings Boiler
Settings Burner Settings
Parameters related with the
SUPERVISION mode should be so
selected
that the boiler
temperature in this mode gradually
drops. Improper settings may
cause boiler overheating or flash
back to the feeder.
The regulator returns to the OPERATION
mode once actual boiler temperature has
achieved preset value less boiler hysteresis.
Examples of the SUPERVISION mode settings
(fuel: hard coal):
- Feeder Interval - Superv. = 15-30min.
- Feeding Time-Superv. = 12s,
- Blow-in operation extending- Superv. = 1s,
- Blow-In Output - Superv. = 25%.
7.9 Selection of fuel
The fuel selection is available only in case
the boiler manufacturer has memorized
various types of fuel. The type of fuel may be