Pr21 Flue gas intake speed in power 4 work phase
Allows setting flue gas intake device speed when equipment is working in POWER 4. If using a difficult to burn
"hard" (or dark) pellet, this parameter value can be increased. The same must also be increased/decreased
depending on flue draught.
Pr22 Flue gas intake speed in power 5 work phase
Allows setting flue gas intake device speed when equipment is working in POWER 5. If using a difficult to burn
"hard" (or dark) pellet, this parameter value can be increased. The same must also be increased/decreased
depending on flue draught. This parameter also relates to flue gas intake device on models set-up with DHW,
when equipment is working in “SANI” POWER.
Pr23 Time after which equipment switches off if it remains in “ECO H2O”
Allows setting time after which equipment switches off once "SET H2O" set temperature is reached.
Anticipated switch-off occurs without passing of time set on this parameter if the water temperature exceeds
Pr12 within this time. This parameter can be increased or decreased if necessary to anticipate or delay
equipment switch-off. To avoid continuous switch-off and re-ignition, it is advised not to excessively decrease
this value (value below 10').
Pr24 Brazier cleaning duration
Allows setting brazier cleaning duration time that happens after a time interval set on parameter Pr03. The
wording “COOL FIRE” appears on display during cleaning phase. The value to be set depends on burnt pellet
quality and hardness. It is essential to increase the set value to increase brazier cleaning duration with "hard"
(or dark) pellet. The factory setting (see database) is normally increased by about 10"/20". Excessive cleaning
duration increase can lead to total brazier emptying with consequent going off of the flame during this phase. It
is advised not to excessively increase this value but to increase brazier cleaning frequency (by decreasing
time set on parameter Pr03).
Pr25 Differential on “SET H2O” to change-over three-way motorised valve
Allows setting temperature differential on “SET H2O” (working from power 1 to power 5) for three-way
motorised valve assembled on DHW, change-over.
The three-way motorised valve changes to automatic once temperature differential is exceeded (or H2O
temperature > (SET H2O - Pr25)), placing itself in "open pellet stove DHW circuit" and, consequently, in
"closed coupled boiler DHW circuit". It will automatically change back (taking itself back to "closed pellet stove
DHW circuit" position and, consequently, to "open coupled boiler DHW circuit") only below temperature
differential (or H2O temperature < (SET H2O - Pr25)).
This parameter can be increased or decreased if necessary to anticipate or delay 3-way valve exchange. To
avoid its continuous exchanges, it is advised not to excessively decrease this value. Change-over happens
after time set on parameter Pr27.
Pay attention as the three-way valve exchange temperature also varies when varying "SET H2O" temperature.
Example:
WORK POWER: from 1 to 5
SET H2O = 60°C
Pr25 = 5°C
Pr27 = 60”
The valve opens in pellet thermo stove DHW circuit after 60" from reaching 56°C.
It closes after 60" if temperature drops below 55°C (at 54°C).
Pr25 PARAMETER NOT USED
The parameter is not used in some products.
Pr26 Differential on “SET SANI” to change-over three-way motorised valve
Allows setting temperature differential on “SET SANI” (working in DHW power) for three-way motorised valve
assembled on DHW, change-over.
The three-way motorised valve changes to automatic once temperature differential is exceeded (or H2O
temperature > (SET SANI - Pr25)), placing itself in "open pellet stove DHW circuit" and, consequently, in
"closed coupled boiler DHW circuit". It will automatically change back (taking itself back to "closed pellet stove
DHW circuit" position and, consequently, to "open coupled boiler DHW circuit") only below temperature
differential (or H2O temperature < (SET SANI - Pr25)).
This parameter can be increased or decreased if necessary to anticipate or delay 3-way valve exchange. To
avoid its continuous exchanges, it is advised not to excessively decrease this value. Change-over happens
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