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3.18 MIXED ZONE FLOW TEMPERATURE ADJUSTMENT
If the zones control unit is connected to the boiler via a signal
state or if it is connected via BUS to boilers other than Superior
and the external temperature probe is missing, the temperatures
of the mixed zones (see tables below) can be set on the R12 and
R13 trimmers (Fig. 39).
Trimmer
position
R12 or R13
Mixed zone flow
(25 ÷ 50 °C)
Mixed zone flow
(25 ÷ 75 °C)
1
25 °C
25 °C
2
34 °C
43 °C
3
38 °C
50 °C
4
42 °C
59 °C
5
50 °C
75 °C
Trimmer
position
R12 or R13
Mixed zone flow
(35 ÷ 50 °C)
Mixed zone flow
(35 ÷ 75 °C)
1
35 °C
35 °C
2
40 °C
49 °C
3
43 °C
55 °C
4
45 °C
62 °C
5
50 °C
75 °C
N.B.:
using a DIM BUS connection to the Superior kW boiler and
the Victrix Superior range (new version 2021), the mixed zones
are regulated on the boiler display.
N.B.:
when the external probe is connected, the OFFSET action
can be regulated
(only with Superior kW boilers and Victrix
Superior (new version 2021)).
3.19 EXTERNAL TEMPERATURE PROBE (OPTIONAL).
The manifold is preset for the application of the external probe
(Fig. 40)
, which is available as an optional kit. The probe can be
connected directly to the manifold P.C.B. or to the boiler electrical
system and allows the max. system flow temperature to be automa-
tically decreased when the external temperature increases, in order
to adjust the heat supplied to the system according to the change
in external temperature. The external probe always operates when
connected, regardless of the presence or type of room chrono-ther-
mostat used, and can work in combination with Immergas timer
thermostats. The electrical connection of the external probe must
be made in the boiler when the DIM ERP is connected via DIM
BUS to the boiler itself or to the zones control unit, as indicated in
Fig. 23
in the other cases.
•
Direct zone check.
The correlation between flow temperature
to the system and external temperature is determined by the
parameters set on the boiler. See boiler instructions manual.
•
Mixed zone check.
The correlation between flow temperature
to the system and external temperature is determined by the
trimmer position
(7 or 8 Fig. 38)
present on the zones control
unit according to the curve represented in the diagram
(Fig. 41)
.
39
R12
R13
1
5
1
5
2
4
2
3
3
4
40
45
31
58