Fondital FORMENTERA KC 24, Инструкция по эксплуатации

Страница: 66 / 96

________________________________________________________________________________
66
AST 14 C 257/00
Tank heater filling function (pump ON)
The tank heater temperature is set, via parameter P19, to a value between 10 and
90°C (
default 60°C
).
The PS solar pump is activated under the following conditions:
•
Tsvs < P19-2°C
and
•
Tscs – Tsb s > ¨ T ON (P20)
and
•
Tscs > Tmin pump collector ON (P23)
and
•
Tscs < Tmax pump collector ON (P22-5°C)
where Tsvs is the temperature read by the upper probe of the solar tank heater;
Tsb s is read by the lower probe, and Tscs is read by the solar collector probe.
Tank heater filling function (pump OFF)
The PS solar pump is deactivated under the following conditions:
•
Tsvs > P19
or
•
Tscs – Tsb s < ¨ T OFF (P21)
or
•
Tscs < Tmin pump collector OFF (P23-5°C)
or
•
Tscs > Tmax pump collector OFF (P22)
Important. In the event of a failure of the SVS solar valve prob e, the diverting valve
activates in the solar mode only and tank heater takes place following the same
logic, taking into consideration the SBS solar tank heater prob e and not the faulty
one.
Boiler integration function
This function controls the VM motorised valve and activates the boiler burner only if
the solar tank heater temperature is too low to meet the requirements.
The VM valve remains deactivated (boiler integration) when the temperature read
by the SVS probe is lower than the DHW set-point temperature -2°C. It is powered
(solar only) when the temperature of the solar tank heater probe reaches the DHW
set-point set on the boiler, or if the probe is faulty.
When the VM valve is in the solar-only position, the boiler cannot operate in the
DHW mode.
Important. This function is only active if the DHW+HEATING, HEATING ONLY or
DHW ONLY operating mode is set on the b oiler. With the b oiler OFF or in ANTI-
FREEZE mode, the VM valve remains powered on.