Fondital FORMENTERA KC 24, Инструкция по эксплуатации

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AST 14 C 257/00
Important. The solar collector anti-freeze function is only enab led if parameter P24
is set to 1, whereas the b oiler mode has no effect on this function.
Solar characteristics
When the solar pump activates, the boiler display shows the icon indicating
that the pump is active.
If there is a failure involving the solar tank heater probe (SBS), or the solar collector
probe (SCS), the solar pumps switches off immediately and the fault is indicated on
the boiler board interface and the remote control (if connected), via the associate
error codes (E28 and E24, respectively).
Select the parameters P91 and P92 to force the solar loads during maintenance
work. In this way, the multi-function relay is energised until the parameter is reset at
its former value.
Characteristics of the additional board
Pow er supply
230V AC -15 to +10% 50Hz
Load output 230V AC, 1° max
Flow probe
NTC 10k Ohm @25°C B3435
Max. 3 metres
Solar probe
PT1000 Max. 100 metres
Correct flow probe operating range
-5°C to +120°C
Correct solar probe operating range -40°C to +290°C
Mixing valve deactivation range due to set-point reached
Set+1.5°C / Set-2°C
Mixing valve full opening timer
From 0 to 300s (P74)
Initial closure timer w ith pow ered board
P74 + 40 s
Request end closing timer P74 + 20 s
Post-circulation timer
From boiler, with P13
Circulation pump anti-shutdow n timer 3s every 24 hours
Anti-freeze timer
15 min
Anti-freeze intervention temperature
< 5°C
TEMPERATURE PROBE CHECK
The system checks the fault status of the probes connected to the modulation board. A
fault occurs when the probe is not powered (except for the external probe), or when it
reads a temperature value outside the correct probe operating range:
¾
External probe failure (E23): each request for operation on heating mode which
entails ignition of the burner is carried out without taking into account the calculation
algorithm: the curve value is used to determine the operating range (standard or
reduced) with the set-point corresponding to that entered.
Correct operating range:
from -40 to +50°C, general tolerance: +3°C
.