© 12128_Apricus_DeltaSol_BS4_V2.monen.ind
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DeltaSol
®
BS/4
#-8
Maximum collector temp.
Adjustment range:
70 ... 160 °C [150 ... 320 °F]
in steps of 1 K [1 °Ra]
Factory setting:
110 °C [230 °F]
Collector cooling function
When the collector cooling function is activated, the controller
aims to keep the collector at an operational temperature.
When the adjusted maximum store temperature is reached,
solar loading stops. If the collector temperature increases
to the adjusted maximum collector temperature, the solar
pump is activated until the collector temperature falls at least
5 K [10 °Ra] below the maximum collector temperature. The
store temperature may increase (subordinate active maximum
store temperature), but only up to 95 °C [200°F] (emergency
shutdown of the store).
If the collector cooling function is active,
and
(flashing)
is shown on the display.
OCC
:
Option collector cooling
Adjustment range: OFF / ON
Factory setting: OFF
N
OTE
This function will only be available if the system
cooling function (
OSYC
) is deactivated.
When the system cooling function is activated, the control-
ler aims to keep the solar system operational for a longer
time. The function overrides the maximum store tempera-
ture to provide thermal relief of the collector field and the
heat transfer fluid on hot days.
If the store temperature is higher than the maximum
store temperature
S MX
and the switch-on temperature
difference
DTCO
is reached, the solar system remains
activated. Solar loading is continued until either the store
temperature reaches 95 °C [200 °F] (emergency shutdown
of the store), the temperature difference falls below the
adjusted value
$4#&
or the collector emergency shutdown
temperature
EM
is reached.
If the system cooling function is active,
and
(flashing)
is shown on the display.
System cooling function
OSYC
:
Option system cooling
Adjustment range: OFF / ON
Factory setting: OFF
DTCO
:
Switch-on temperature diff.
Adjustment range:
1.0 ... 30.0 K [2.0 ... 60.0 °Ra]
in steps of 0.5 K [1 °Ra]
Factory setting:
20.0 K [40.0°Ra]
$4#&
:
Switch-off temperature diff.
Adjustment range:
0.5 ... 29.5 K [1.0 ... 59.0 °Ra]
in steps of 0.5 K [1 °Ra]
Factory setting:
15.0 K [30.0 °Ra]
N
OTE
This function will only be available if the collector
cooling function (
OCC
) is deactivated.
Cooling functions
In the following the three cooling functions – collector
cooling, system cooling and store cooling – are described
in detail. The following notes are valid for all three cooling
functions:
N
OTE
The cooling functions will not become active as
long as solar loading is possible.
N
OTE
In system layout 3, the parameter
CMX
is
available without the
OCC
function. In system
layout 3,
CMX
is used to set the activation tem-
perature for the heat dump function. No other
switch-on condition is needed in that case.
