Fire-Up (Throttle On/Off); Manual Mode; Settings; Use Voltage-Free Contact - Tech Controllers EU-3910 SIGMA User Manual

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7.2
F
-
(
IRE
UP
THROTTLE ON
The aim of this function is to achieve optimum flame in the shortest time possible.The fire-up effectiveness is enhanced by
throttle operation. This stage lasts until room temperature reaches a pre-defined value required to enter the operation mode.
Once the controller enters operation mode, instead of Fire-up function, Throttle ON/OFF appears in the menu. The throttle
may be disabled if necessary (e.g. while adding fuel) - then the throttle closes completely. The extinguishing process may also
be initiated by disabling the throttle.
7.3
M
ANUAL MODE
The regulator offers manual mode function. In this function, the voltage-free contact may be activated and deactivated.
Additionally, the throttle position may be adjusted manually by changing the degree of opening (%). The throttle will start
changing its position about 2 seconds after the change has been introduced.
7.4
S
ETTINGS
1.1.

USE VOLTAGE-FREE CONTACT

The controller has a voltage-free contact output, whose task is to open/close the contact when the room temperature
reaches the value set by the user.
A voltage-free contact can be used e.g. to switch on an external heating device or as a signal to fire up a pellet boiler.
NOTE
The voltage-free contact operation depends on the reading from the room temperature sensor.
1.2.

TEMPERATURE OF CONTACT DEACTIVATION

It is the threshold temperature value at which the contact will be disabled. The contact operates continuously until it reaches
the deactivation temperature.
1.3.

PRE-SET ROOM TEMPERATURE

When the current room temperature exceeds the pre-set temperature value, the throttle will start closing.
7.5
T
HROTTLE CALIBRATION
Throttle calibration is performed automatically every few hours to ensure its proper position. This function is used to activate
throttle calibration manually. Once this option is selected, the throttle moves slightly above its current position, reaches 0
position and moves back to its original position.
NOTE
Check regularly if the throttle is unobstructed. An obstructed throttle may have negative impact on combustion
process. Mechanical damage caused by dirt or foreign matter entering the air duct, which may lead to throttle
blocking, is not covered by warranty repair.
/
)
OFF
9

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