© RESOL 11089 deltasol_c2.monen.ind
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D e lt a S o l
®
C2
CFR
: Antifreeze temperature
Adjustment range: -10 ...10 °C
Factory setting: 4,0 °C
3.1.13 Antifreeze function
OCF:
Antifreeze function
Adjustment range: OFF / ON
Factory setting: OFF
The antifreeze function activates the loading circuit between
the collector and the store when the temperature falls be-
low the adjusted antifreeze temperature. This will protect
the fluid against freezing or coagulating. If the adjusted anti-
freeze temperature is exceeded by 1 °C, the loading circuit
will be deactivated.
Note:
Since this function uses the limited heat quantity of the
store, the antifreeze function should be used in regions with
few days of temperatures around the freezing point.
3.1.14 Recooling function
If the adjusted maximum store temperature (S MX) is
reached, the controller keeps the solar pump running in
order to prevent the collector from being overheated.
The store temperature may increase, but only up to 95 °C
(emergency shutdown of the store).
The solar pump is switched on as soon as possible (depen-
ding on weather conditions). It is switched off when the
store is cooled down to the adjusted maximum temperature
via the collector and the pipework.
OREC:
Recooling
Adjustment range: OFF... ON
Factory setting: OFF
CMN
: Collector minimum
temperature
Adjustment range: 10 ... 90 °C
Factory setting: 10 °C
CMX:
Maximum collector
temperature
Adjustment range: 100 ... 190 °C
Factory setting: 120 °C
3.1.11 System cooling
When the adjusted maximum store temperature is reached,
the system stagnates. If the collector temperature increases
to the adjusted maximum collector temperature (
CMX
)
the solar pump is activated until the collector temperature
falls below the maximum collector temperature. The store
temperature may increase (subordinate active maximum
store temperature), but only up to 95 °C (emergency shut-
down of the store).
OCX
Option system cooling
Adjustment range: OFF ... ON
Factory setting: OFF
3.1.12 Minimum collector function option
OCN:
Minimum collector
function
Adjustment range: OFF / ON
Factory setting: OFF
The minimum collector temperature is the minimum tem-
perature which must be exceeded for the solar pump (R1)
to switch on. The minimum temperature prevents the pump
from being switched on too often at low collector tempera-
tures. If the temperature falls below the minimum tempera-
ture, (flashing) is shown on the display.
If OREC is additionnally enabled:
If the store temperature is higher than the maximum store
temperature(
S MX
) and if the collector temperature is at
least 5 K below the store temperature, the solar system
remains activated until the store is cooled down below the
adjusted maximum temperature (
S MX
) via the collector
and the pipework.
If the system cooling function is enabled,
(flashing) is
shown on the display.Due to the cooling function, the sys-
tem will have a longer operation time on hot summer days
and guarantees thermal relief of the collector field and the
heat transfer fluid.
