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CONTROL OF EXTERNAL PROBE
Installation and functioning at sliding temperature
For the connection of the External Probe, it shall be used the Original Kit
FIAMMA code F.532 provided in the accessories of the electric boilers
Elektra. The electrical connection shall be done in the external terminal at
the general electric panel already prearranged in the standard cabling of
the boiler. The connection must be carried out with junction cables and wires having a
minimum section of 1,5 mm and, if possible, avoiding the insertion along with electric lines,
digital lines of inverter or other not compatible.
After the connection the external probe must be enabled by means of the introduction of a
variation of P1 parameter, changed from 0 to 1.
Then the setpoint chased by the heating delivery probe will be calculated as follows:
T
[°C] = [( T
[°C] – T
ch
room
T
: heating setpoint calculated by the system
ch
T
: ambient temperature set by the user
room
T
: outside temperature measured by the probe
ext
dc: dispersion coefficient of the building can be set by parameter P2.
Tch [°C]
35
73
68
63
58
53
48
43
38
33
28
20
15
10
5
Examples of curves with T
ANTIFREEZE FUNCTION
In case the delivery probe measures a temperature lower than 7°C, the circulator is
activated. If the temperature goes down the value of 4°C, the primary exchanger (boiler
body) is turned on until bringing the outlet temperature to 20°C. The antifreeze function is
active also with the boiler turned OFF (function in standby mode but with bright switch on).
[°C]) * dc/10 ] + T
ext
30
25
20
15
10
8
5
0
-5
-10
-15
-20
Text [°C]
set at 20°C and JP7 = 0
room
[°C]
room
Tch [°C]
35 30 25 20
40
35
30
25
20
20
15
10
Examples of curves with T
16
15
10
8
5
0
-5
-10
set at 20°C and JP7 = 1
room
5
-15
-20
Text [°C]
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