Immergas Victrix Maior 28 TT 1 ErP, Instruction And Recomendation Booklet

Page: 35 / 52

35
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
Id
Parameter
Parameter Description Range Default
Customised
value
A0 Hydraulic model Defines the type of hydraulics in the boiler
Set
4
4
A1
D.h.w. flow-rate
regulator
The boiler lets us set the domestic hot water flow rate regulator in various
operating modes:
- Open (0): regulator all open, therefore maximum possible flow rate
- Set maximum flow rate (8 - 10 - 12 - 14 - 16): by setting one of the values
shown, the regulator will ensure the maximum corresponding flow rate in
litres per minute.
- Auto (A): in auto mode the regulator varies the maximum flow rate to
ensure the set domestic hot water temperature.
- Forced auto (AH): with the domestic hot water set at or above 55 °C it sets
the regulator at 10 l/min for the Victrix Maior 28 TT 1 ErP version and 16
l/min for the Victrix Maior 35 TT 1 ErP version.
- (AT): the regulator limits the delivery of hot water to 4 l/m until exceeded
a temperature of 40° C, then the flow rate is controlled as in mode (A).
- (HT): the regulator limits the delivery of hot water to 4 l/m until exceeded
a temperature of 40° C, then the flow rate is controlled as in mode (AH).
0
8 / 10 / 12 /
14 / 16
A
AH
AT
HT
AH
A2
Model
Pump
Defines the type of circulator in the boiler
Set
3
3
A3
Maximum pump
speed
Sets the maximum pump operating speed 1 ÷ 9 9
A4
Minimum pump
speed
Sets the minimum pump operating speed 1 ÷ A3 5
A5
Pump operating
mode
Sets the pump operating mode (see parag. 1.26)
- DELTA T = 0:proportional head
- DELTA T = 5
÷
25 K: constant ∆ T
0 ÷ 25 15
A7
Ignition phase
automatic vent.
Sets the activation mode of the automatic vent at each new electric powering
phase of the boiler.
This function lasts 8 minutes, and is displayed via a countdown signalled by
the special indicator ( Ref. 14 Fig. 2-1 ). During this period the DHW and CH
functions are not active. The “automatic vent” function can be annulled by
pressing the “reset” button.
1: the automatic vent is enabled at each new electric power supply.
0: the automatic vent is enabled only at the first electric power supply after
having set the parameter to “0”; once the function has ended, or is inter-
rupted by pressing the “reset” button, it will not be enabled again unless
the parameter is set to “1”.
0 - 1 1
Id
Parameter
Parameter Description Range Default
Customised
value
F0
Equivalent length
flue
Defines the length of the flue (see par. 3.11) 0 - 2 0
F1 - Not used on this boiler model - -
In the event of an alteration, anomaly “E72” appears and fast calibration is required.
3.13 SOLAR PANELS COUPLING
FUNCTION.
The boiler is set-up to receive pre-heated water
from a system of solar panels up to a maximum
temperature of 65°C. In all cases, it is always
necessary to install a mixing vale on the hy-
draulic circuit upstream from the boiler on the
cold water inlet.
Note: in order for the boiler to work properly, the
temperature selected on the solar valve must be
5°C greater than the temperature selected on the
boiler control panel.
In this condition, parameter t2 (DHW ther-
mostat) must be set at “1” and parameter t3
(solar delay time) must be set for a period that
is sufficient to receive water from a storage tank
located upstream of the boiler. The greater the
distance from the storage tank, the longer the
stand-by time to be set. Once these adjustments
have been made, when the temperature of the
boiler inlet water is the same or greater than that
set by the DHW selector switch, the boiler does
not switch on.
3.14 ''CHIMNEY SWEEP'' FUNCTION.
When activated, this function forces the boiler
to variable output for 15 minutes.
In this state all adjustments are excluded and
only the safety thermostat and the limit ther-
mostat remain active. To activate the chimney
sweep function, press the “Reset” button (2)
until activation of the function in the absence
of DHW requests.
Its activation on the boiler display is confirmed
by the indicators flashing at the same time (11
and 12 Fig. 2-1), while on the CAR
V2
(optional)
it is indicated as “ERR > 07”.
This function allows the technician to check the
combustion parameters.
Once the function is activated, it is possible to
select whether to make the chick in CH status
or DHW status by opening any hot water cock
and regulating the power by turning the "CH
regulation" selector (6).
The central heating or DHW operating mode is
displayed by the relative symbols
or .
After the checks, deactivate the function switch-
ing the boiler off and then on again.
Attention: the boiler needs a certain amount of
time to stabilise itself before carrying out a com-
bustion parameters check. It is thus necessary to
wait for the boiler to carry out a self-diagnosis
test, which is signalled by the (
) flashing
symbol. Once the symbol stops flashing, it is
possible to check the combustion parameters.