Plum ecoMAX920P1-S TOUCH, Installation And Operating Manual, Page: 37 / 48

37
Available burner cleaning modes:

None
– the grate mechanism operation is not included in Cleaning mode.

VIP - the grate mechanism connected to output
1 in controller’s module operates
continuously and is on/off cyclically according to the settings of following parameters Poker
operation, Poker pause. In Burning out and Burning off mode the grate operates for a preset
Grate operation time in burning off and cleaning is done with fan ON, which increases its
power for given burner power level, for a preset time, by a parameter Increasing fan power
with switching on the grate.

Cycle
– the grate mechanism connected to output 1 in controller’s module starts in Operation
mode for each boiler power level. In Firing-up and Stabilization mode the grate stops and is
on/off cyclically according to the settings of following parameters
Poker operation and Poker
pause. In Burning out and Burning off mode the grate mechanism operates continuously until
boiler is off, activating itself with Poker operation. Setting Poker pause=0 means, that the
grate operates continuously in reverse mode. Here output 2 is inactive.

Roto
– the grate mechanism connected to output 1 operates the same as in Cycle in
Operation and Burning out mode. During Burning off mode the mechanism is switched on
continuously for the duration of this mode. Mechanism on output 2 is activated only during
burning off simultaneously with mechanism on output 1.

Cycle x K
– mechanism 1 of the grate operates the same as in Cycle. In Operation mode
mechanism 2 operates cyclically activating itself for the time of Poker operation, after this time
the mechanism returns and the subsequent activations are done by every K-factor of the
mechanism on output 1 (of K=3 then the mechanism will activate with third activation of
mechanism on output 1, for K=1 both mechanisms will operate in parallel mode). Two
mechanisms use parameter settings for the mechanism on output 1.

Perfect constant
– mechanism 1 operates the same as in Cycle. In Operation mode the
mechanism 2 is off. After Maximum burner operation time it will put the burner into incremental
power decreasing mode to the minimum power of the burner and activate mechanism 2 in
Cycle mode, including the K multiplication factor (it indicates how many times the mechanism
2 will be activated), after finishing of which it will start operation again increasing the de
vice’s
power to preset operation conditions. Mechanism 2, when the burner finishes its operation in
Burning out/Burning off mode, the Cycle mode for mechanism 2 will start.

Intermittent perfect
– mechanism 1 operates the same as in Cycle. In Operation mode
mechanism 2 is off. After Maximum burner operation time it will put the burner into operation
finishing mode, which is Burning out/Burning off mode, during which mechanism 2 operates
the same as in Cycle with parameters the same as for mechanism 2.

Poker operation

Poker pause

Grate operation
time in burning off

Increasing fan
power

Stoker emptying
time
Additional parameter settings independent from grate ode selection in parameter Grate support
mode. The parameters serve the same function as in Grate support mode.
Burning out/Burning off
Burning out end
threshold % of flame brightness. Below this value is a sign of ending burning out. Burning out process may
start again when the flam eis back. After burning out the boiler burning off starts.
Blowing time Duration of blowing while burning out fuel in burning off.
Blowing pause Pause between blowing when burning out fuel in burning off.
Burning off time
Duration time of furnace burning out below which the controller recognizes, that the burning out is
ended and enters into pause or cleaning mode.
Grate
Blowing operation
–
supervision
Duration time of fan blowing in sustain, while the Grate operates. The value should not be too high in
order not to cause too much water heating in the boiler.
Blowing pause
–
sustain
Pause time between blowing in sustain, when operating in Grate mode. The value should not be too
high in order not to cause too much water heating in the boiler.
Lambda probe Description in section 18
14.2 Boiler
Parametr Description
50% H2 hysteresis
Temperature transition threshold between maximum and half power of the burner.
30% H1 hysteresis
Temperature transition threshold between half and minimum power of the burner.
Boiler hysteresis
–
grate
Value decreased from preset boiler and grate temp. Additional lower threshold for preset boiler and
grate temp.
Thermostat selection
Available options:

Off
– turns off the room thermostat influence on boiler operation,

Universal
– turns on standard room thermostat for the boiler,

ecoSTER
T1…T3, eSTER T1…T3 – option available after connecting room panel and makes
boiler operation dependent on the thermostat in room panel. If room panel is not connected,