Plum ecoMAX 200 W, Operation And Maintenance Manual

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24
Fast detection of fuel shortage decreases
losses of heat caused by the fan operating
with no fuel, and it allows to sustain fire for a
longer time, during which the boiler can be
refuelled without the need of firing it up
again.
1-first method – based on the boiler
temperature sensor readings T1 (factory
parameter
S9=1). After the boiler
temperature drops below the n0 parameter
Pump activation time , the fuel shortage
detection time n5 is counted out (see point
12.6). If after that time the boiler
temperature does not rise, the AL1 alarm is
produced and the fan is disabled.
2-second method (recommended) – based
on emission temperature sensor readings
(factory parameter S9=2). This method
allows very fast detection of the fuel
shortage. It can be used only if an emission
sensor T3, placed in the boiler flue, is
connected. After the emission temperature
drops below the factory parameter P8 (
Fuel
shortage detection – emission temperature ),
the fuel shortage detection time n5 is
counted out (see point 12.6). If after this
time the temperature does not increase, AL1
alarm is produced.
The AL1 alarm will be cancelled after:
- pushing the START button, or after
- disabling and enabling the regulator via
mains switch.
Recommended settings of the n5 parameter
(fuel shortage detection time) depending on
the method of detecting:
Detection
method
n5 value
1 – boiler sensor 20min
2 – emission
sensor 10min
12.22 Power supply decay
In the cases of power supply failure, the
regulator will resume the operation mode in
which it was before the failure.
13 Firmware
WARNING!!! Values of the following
parameters can be modified only by
qualified staff of the boiler manufacturer
There is a menu of factory parameters in the
regulator. These are advanced settings. After
restoring default settings, the following
parameter
values are not restored!
Therefore, before changing any parameter it
is recommended to write down its default
value, in order to be able to restore it.
The manufacturer‟s menu can be accessed
by activating the regulator via the mains
switch while pressing the F button, and
holding it for 12 seconds.
Name
sy
mb
ol
range typica
l
value
Boiler overheating alarm
temperature
P0
50…99  C 90
Central heating pump
operation time with
blockade by room
thermostat
P1
1…250 s 30
Central heating and hot
utility water pump
hysteresis
P2
1…10  C 2
Central heating and hot
utility water pump
hysteresis – AL3 alarm
end
P3
1…30  C  15
Central heating pump
down-time by priority
P4
1…250 min 0
Fan start time
P5
0…60 s 2
Temperature 1 of
extending blow-off
interval
P6
-  C 10
Temperature 2 of
extending blow-off
interval
P7
-  C 15
Amplification factor –
regulation mode 2
P8
1...999 - 180
Integration time –
regulation mode 2
P9
1…999 - 350
Differentiation time –
regulation mode 2
S0
1…999 - 25
Amplification factor –
regulation mode 3
S1
1...999 - 11
Integration time –
regulation mode 3
S2
1…999 - 120
Differentiation time –
regulation mode 3
S3
1…999 - 5
14 Description of alarms
14.1 No fuel AL1
After detecting fuel shortage, the following
message will appear on the display