36
3-14
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
3.15 PUMP ANTI-BLOCK FUNCTION.
The boiler has a function that starts the pump at
least once every 24 hours for the duration of 30
seconds in order to reduce the risk of the pump
becoming blocked due to prolonged inactivity.
3.16 THREE-WAY ANTI-BLOCK
FUNCTION.
Both in “domestic hot water” and in “domestic
hot water-central heating” phase the boiler is
equipped with a function that starts the three-
way motorised group 24 hours after it was last
in operation, running it for a full cycle so as to
reduce the risk of the three-way group becoming
blocked due to prolonged inactivity.
3.1
7
RADIATORS ANTI-FREEZE
FUNCTION.
If the system return water is below 4°C, the boiler
starts up until reaching 42°C.
3.18 P.C.B. PERIODIC SELF-CHECK.
During functioning in central heating mode or
with boiler in standby, the function activates
every 18 hours after the last boiler check/power
supply. In case of functioning in domestic hot
water mode the self-check starts within 10 min-
utes after the end of the withdrawing in progress,
for duration of approx. 10 seconds.
N.B.:
during self-check, the boiler remains off.
3.19 AUTOMATIC VENT FUNCTION.
In the case of new central heating systems and
in particular mode for floor systems, it is very
important that dearation is performed correctly.
The function consists of the cyclic activation of
the pump (100 s ON, 20 s OFF) and the 3-way
valve (120 s D.H.W., 120 s C.H.).
The function is activated in two different ways:
- at each new boiler power supply, based on the
setting of parameter “A7”;
- by pressing the buttons at the same time (3
and 5 Fig. 2-1) for 5 seconds with the boiler in
stand-by.
N.B.:
if the boiler is connected to the CAR
V2
the “stand-by” function can only be activated
via the remote control panel.
In the first case, the function has duration of 8
minutes and it can be interrupted by pressing
the “reset” button (2). In the second case it has
duration of 18 hours and it can be interrupted by
simply switching the boiler on.
Activation of the function is signalled by the
countdown shown on the indicator (14).
3.20 YEARLY APPLIANCE CHECK AND
MAINTENANCE.
The following checks and maintenance should
be performed at least once a year.
- Check that the system's water PH is between
6.5 and 8.5.
- Visually check for water leaks or oxidation
from/on fittings and traces of condensate
residues inside the sealed chamber.
- Check contents of the condensate drain trap.
- Check that there are no residues of material
clogging the condensate passage; also check
that the entire condensate drainage circuit is
clear and efficient.
- Visually check that the water safety drain valve
is not clogged.
- Check that, after discharging system pressure
and bringing it to zero (read on boiler pressure
gauge), the expansion vessel pressure is at 1.0
bar.
- Check that the system static pressure (with
system cold and after refilling the system by
means of the filling valve) is between 1 and 1.2
bar.
- Visually check that the safety and control
devices have not been tampered with and/or
short-circuited.
- Check the condition and integrity of the electri-
cal system and in particular:
- supply voltage cables must be inside the
fairleads;
- there must be no traces of blackening or
burning.
- Check ignition and operation.
- Check correct calibration of the burner in
domestic hot water and central heating phases.
Victrix Maior 28 TT 1 ErP
CO
2
at nominal
output
(99 %)
CO
2
at intermediate
output
(53 %)
CO
2
at minimum
output
(0 %)
G 20
9.55
±
0.80
9.20
±
0.80
9.10
±
0.80
G 31
10.55
±
1.00
10.40
±
1.00
10.10
±
1.00
Victrix Maior 35 TT 1 ErP
CO
2
at nominal
output
(99 %)
CO
2
at intermediate
output
(41 %)
CO
2
at minimum
output
(0 %)
G 20
9.50
±
0.80
9.00
±
0.80
9.00
±
0.80
G 31
10.50
±
1.00
10.00
±
1.00
10.00
±
1.00
N.B.:
measurements and calibration must be carried out by using regularly-
calibrated instruments.
- Check the operation of the appliance control
and adjustment devices and in particular:
- system regulation probes intervention;
- domestic hot water control thermostat inter-
vention.
- Check sealing efficiency of the gas circuit and
the internal system.
- Verify the intervention of the ionisation flame
control no gas device:
- Check the CO
2
by using the chimney sweep
function at the three reference heat outputs
using the parameters in fig. 3-14. Should
values out of the indicated tolerance range be
detected, check the integrity of the ignition /
detection electrode and, if required, change it,
also changing the relative gasket. At this point,
activate the “complete calibration” function.
- Carry out the flue test. Values below 40%
compared to the pressures detected upon first
check, suggest a clogged burner or module (flue
side).
Attention:
the burner does not need to be
opened for normal maintenance of the appli-
ance. However, should it be removed, you must
change the gasket.
N.B.:
in addition to yearly maintenance, you
must also check the thermal system and energy
efficiency, with the frequency and procedures
that comply with the technical regulations in
force.
Summary of Contents for Victrix Maior 28 TT 1 ErP
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