Immergas EOLO STAR 24 3 E - Boiler Programming and Parameter Adjustment

3-3
20 - IE
INSTALLATORUSERTECHNICIAN
3.5 CHECKS FOLLOWING
CONVERSION TO ANOTHER TYPE
OF GAS.
Aer making sure that conversion was carried
out with a nozzle of suitable diameter for the
type of gas used and the settings are made at the
correct pressure, check that:
- there is no ame in the combustion chamber;
- the burner ame is not too high or low and that
it is stable (does not detach from burner);
- the pressure testers used for calibration are
perfectly closed and there are no leaks from
the gas circuit.
N.B.: all boiler adjustment operations must
be carried out by a qualied technician (e.g.
Immergas After-Sales Technical Assistance).
Burner adjustment must be carried out using
a dierential “U” or digital type pressure gauge
located above the sealed chamber (part. 9 Fig.
1-33) and the gas valve pressure outlet (part. 4
Fig. 3-3), keeping to the pressure value given in
the table (Par. 3.17) according to the type of gas
for which the boiler is prepared.
3.6 POSSIBLE ADJUSTMENTS.
• Adjustment of boiler nominal thermal heat
output.
- Press the (+) key to adjust the domestic hot
water temperature (3 Fig. 2-1) up to the maxi-
mum temperature function.
- Open the domestic hot water cock in order to
prevent modulation intervention.
- Adjust the boiler nominal power on the brass
nut (3 Fig. 3.3), keeping to the maximum
pressure values stated in the tables (Par. 3.17)
depending on the type of gas.
- By turning in a clockwise direction the heating
potential increases and in an anti-clockwise
direction it decreases.
• Adjust the boiler minimum heat input in the
domestic hot water phase (Fig. 3-3).
N.B.: only proceed aer having calibrated the
nominal pressure.
To adjust the minimum thermal output in do-
mestic hot water phase, turn the nut (2) located
on the gas valve blocking the brass nut (3);
- disconnect the power supply to the modulating
coil (just disconnect a fasten); By turning the
screw in a clockwise direction, the pressure
increases, in an anti-clockwise direction it de-
creases. On completion of calibration, re-apply
the power supply to the modulating coil. e
pressure, to which the boiler minimum power
must be adjusted, must not be lower than that
stated in the tables (Par. 3.17) depending on
the type of gas.
N.B.: to adjust the gas valve, remove the plastic
cap (6); aer adjusting, ret the cap.
• Adjustment of the boiler minimum heat output
in heating phase.
N.B.: only proceed aer having calibrated the
minimum domestic hot water pressure.
To adjust the minimum heat output during the
heating phase, change parameter (5), increasing
the value the pressure increases, reducing it the
pressure drops.
- e pressure to which the boiler minimum heat
output must be adjusted must not be lower than
that stated in the tables (Parag. 3.17).
3.7 PROGRAMMING THE P.C.B
e Eolo Star 24 3 E boiler is prepared for possible
programming of several functioning parameters. By
modifying these parameters as described below, the
boiler can be adapted according to specic needs.
To access the programming phase, proceed as
follows:
- press keys (1) and (2) at the same time for
approximately 15 seconds;
- Using keys (3) and (4), select the parameter to
be changed indicated in the following table:
List of
parame-
ters
Description
P0 Select solar panels
P1 Select gas type
P2 select special gas type G110
P3 Activate anti extruder function
P4
Activate domestic hot water
post circulation
P5 Minimum heating power
P6 Maximum heating power
P7 Heating ignition timer
P8 Heating ramp timer
- adjust the corresponding value consulting the
table using keys (5) and (6);
- conrm the set value pressing the reset key
(1) for approximately 5 seconds; pressing keys
(3) + and (4) - at the same time to adjust the
domestic hot water temperature, the operation
is cancelled.
N.B.: aer a period of time, without touching
any keys, the operation cancels automatically.
Select solar panels By selecting this function, the
boiler is set to be used with solar panels. Setting
parameter P0 at on “solar”, the switching o of
the burner is connected to the adjustment of the
domestic hot water temperature. In OFF mode,
the burner is switched o at maximum value.
N.B.: together with a solar valve kit, set the
parameter P0 at on “solar” mode (correlated).
Select solar panels
Range of values which can
be set
Parameter
on "solar" - oF (Standard
settings)
P0
Select gas type e setting of this function is used
to adjust the boiler in order to function with LPG
gas or Methane gas.
Select gas type
Range of values which can
be set
Parameter
LG (GPL) o nG (Metano)
(Standard settings)
P1
Town Gas G110 – Industrial gas. e setting
of this function is used to adjust the boiler in
order to function with gases from the rst family.
Town Gas G110 - Industrial gas (rst family
gas)
Range of values which can
be set
Parameter
on - oF (Standard setting) P2
SIT 845 GAS valve
Key:
1 - Coil
2 - Minimum power adjustment nut
3 - Maximum power adjustment nut
4 - Gas valve outlet pressure point
5 - Gas valve inlet pressure point
6 - Protection hood
VK 4105 M GAS valve