INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
48
t6
CH ignition delay
from TA and CR
request
The boiler is set to switch-on immediately after a request. In the event
of particular systems (e.g. area systems with motorised thermostatic
valves etc.) it may be necessary to delay ignition
0 - 600 seconds
(step 10 sec)
0
t7
Display lighting
Establishes the display lighting mode.
- 0: the display lights up during use and lowers after 15 seconds of
inactivity. In the case of anomaly the display flashes.
- 1: display lighting off.
- 2: the display is always lit up.
0 - 2
0
t8
Display
Establishes what the indicator displays 19 (Fig. 37).
"Summer" mode:
- 0: the indicator is always off.
- 1: circulator active, it displays the flow temperature,
pump off the indicator is off
"Winter" mode:
- 0: it always displays the value set on the central heating selector
- 1: circulator active, it displays the flow temperature,
pump off always displays the value set on the CH selector
0 - 1
1
t9
Flow off
temperature
increase
Increases the flow off temperature at ignition only in the first 60 sec-
onds. After the flame is detected, the temperature is increased by t9
0 - 15
0
Id
Parameter
Parameter
Description
Range
Default
Cus-
tomised
value
A0
Hydraulic model Defines the type of hydraulics in the boiler
(0 = instant; 1 = storage tank)
0 - 1
0
A1
Maximum pump
speed
Defines the maximum operating speed of the circulator
(If A1 = A2 circulator operating at set speed)
A2 - 9
9
A2
Minimum pump
speed
Defines the minimum operating speed of the circulator
1 - A1
Victrix Tera 28 1
6
Victrix Tera 32 1
5
Victrix Tera 38 1
5
A3
Pump operating
mode
Sets the pump operating mode
- DELTA T = 0: proportional head (see parag. 1.28)
- DELTA T = 5
-
25 K: ∆T constant (see Parag. 1.28)
0 - 25
15
A4
Storage tank flow
offset
Establishes the temperature to be added to the DHW set-point to cal-
culate the flow set to heat the storage tank (only useful with a coupled
storage tank and parameter A0=1).
5 - 50 °C
25
A5
Storage tank
activation offset
Temperature value to be subtracted from the DHW set-point to cal-
culate the boiler ignition to heat the storage tank (only useful with a
coupled storage tank and parameter A0=1).
0 - 15 °C
3
A6
DHW thermostat
Establishes the switch-off method in DHW mode.
- 0 Fixed: the switch-off temperature is fixed at the maximum value
regardless of the value set on the control panel.
- 1 Correlated: the boiler switches off according to the temperature
set.
0 - 1
0