Immergas Victrix TT - DIP SWITCH CONFIGURATION; Maximum heating set-point for low temperature zones

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Dip
Switch
OFF ON
SW1 Not used Not used
SW2 4 high temperature zones 1 low temperature zone + 1 high temperature zone
SW3
Maximum heating set-
point for low temperature
zone
Remote control 1 displays the multi-zone board TSPs
as well as the temperature read by the “T MAND” low
temperature zone probe, using the info button on the
remote control.
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Correction law of the ow temperature depending on the external temperature and user
adjustments of the central heating temperature.
TM - MAX/MIN = Selected ow temperature range.
TE = External temperature.
“CHIMNEY SWEEP” FUNCTION.
e function is activated simultaneously when
the function is activated on the boiler.
- Chimney sweep in heating mode: the zone
circulator pumps are activated, the low temper-
ature zone mixing valve is adjusted according
to the temperature set from the remote control.
- Chimney sweep in domestic hot water mode:
the zone circulator pumps are switched o and
the mixing valve is closed.
EXTERNAL TEMPERATURE PROBE
OPTIONAL.
e multi-zone kit is designed to control the
external probe, which is available as an optional
kit. e probe can be connected directly to the
boiler P.C.B. and allows the max. system ow
temperature to be automatically decreased
when the external temperature increases, in
order to adjust the heat supplied to the system
according to the change in external tempera-
ture. e external probe always operates when
connected, regardless of the presence or type of
room chrono-thermostat used, and can work in
combination with Immergas timer thermostats.
e external probe must be connected electrically
as indicated in the boiler instructions.
e correction curve (Fig.16) can be modied
from any remote control or if the zone in question
is controlled by a room thermostat, the curve can
be changed from the main remote control using
the relative parameters (Par. “Programming the
P.C.B.”).
MIXING VALVE ANTIBLOCK
FUNCTION.
In order to prevent the mixing valve from block-
ing, the board has a function that, aer 24 hours
from the last operation of the system in heating
mode, opens and fully closes the valve.
LOW TEMPERATURE ZONE
ANTIFREEZE FUNCTION.
e board is equipped with an antifreeze func-
tion that activates a heating request when the
temperature read by the probe on the low tem-
perature zone is below 5 °C. e boiler is switched
on at a ow temperature of 40 °C. e heating
request is interrupted when the temperature read
by the probe exceeds 8 °C for at least 15 minutes.
AUTOMATIC VENT FUNCTION.
e function is activated simultaneously when
the function is activated on the boiler.
- Heating circuit vent valve: the board activates
the zone circulator pumps and opens the mix-
ing valve.
- Domestic hot water circuit vent valve: the cir-
culator pumps are switched o and the mixing
valve is kept open.
At the end of the function, the mixing valve is
closed.
DIP SWITCH CONFIGURATION.
e P.C.B. has a dip switch for its adjustment
(Ref. 9 Fig. 12), congure as indicated in the
table (Fig. 15).
Maximum heating set-point for low temper-
ature zones.
It is possible to set the maximum limit of the
heating set-point that the boiler accepts from
the low temperature zones.
Procedure:
- Set SW3 to “OFF”;
- turn the CAR
V2
heating set-point knob to the
desired value;
- Wait for about 30 seconds;
- Set SW3 to “ON”;
Attention: when SW3 is set to OFF, the board
does not accept heating requests (be careful to
reset SW3 to “ON” at the end of the operation).
e procedure can be repeated to set a dierent
value.
PUMP ANTIBLOCK FUNCTION.
e board 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.
Position of the central heating tempera-
ture user adjustment central heating temp.
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