3.13 REGULATION OF THE HEAT
OUTPUT IN DHW MODE.
Whenever it is necessary to modify DHW the
heat output, the value of parameter N° 24 must
be modified “Max number of fan revs. in DHW
mode”, after having inserted the technician’s code,
as described in par. 3.3.
Regulate the n° of fan revs according to the table
(par. 3.21).
3.14 PUMP OPERATING MODE.
Modifying the parameter N° 3 according to the
“parameters mode” procedure to value “3”, it is
possible to have continuous pump functioning.
3.15 “CHIMNEY SWEEP” FUNCTION.
When activated, this function forces the boiler
at max. output for 15 minutes.
In this state all adjustments are excluded and
only the temperature safety thermostat and the
limit thermostat remain active. To activate the
chimney sweep function, press the “
MODE
”
and “+” keys at the same time for two seconds.
This function allows the technician to check the
combustion parameters, the boiler is forced to
maximum and “
H
” appears on the display. On
completion of the checks, deactivate the function
by pressing the “+” and “-”keys at the same time
for 2 seconds.
3.16 PUMP ANTI-BLOCK FUNCTION.
During the “Summer” phase the boiler has a
function that starts the pump at least once every
24 hours for the duration of 10 seconds in order
to reduce the risk of the pump becoming blocked
due to prolonged inactivity.
3.17 RADIATORS ANTI-FREEZE
FUNCTION.
The boiler has a function that makes the pump
start when the system flow water reaches 7 °C. If
the system flow water is at a temperature below 3
°C, the boiler starts until it reaches 10 °C.
3.18 FLOW TEMPERATURE MAxIMUM
VALUE IN CENTRAL HEATING
MODE.
It is possible to vary the maximum flow tempe-
rature of the generator by modifying parameter
N°4 “parameters mode”, setting a value between
20 and 85 °C.
DUNGS Gas Valve.
Victrix 115 1 I P.C.B.
Key:
1 - Gas valve inlet pressure point
2 - Gas valve outlet pressure point
3 - Off-Set adjustment screw
12 - Outlet gas flow rate regulator
Fig. 3-4
Key:
F1 - Fuse 2A - 230 V
F3 - Fuse 4A - 24 V
Fig. 3-3
139
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