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DeltaSol
®
BS/4
9 10
VBus
R2
S1
S2
R1
S3
S4 / TR
System layout 2
The controller calculates the temperature difference
between collector sensor S1 and store sensor S2. If the
difference is larger than or identical to the adjusted switch-
on temperature difference (DT O), the solar pump will be
operated by relay 1, and the store will be loaded until the
switch-off temperature difference (DT F) or the maximum
store temperature (S MX) is reached.
Sensor S3 is used for a thermostatic function, which ope-
rates relay 2 for afterheating or heat dump purposes, when
Arr 2
Display Channels
Channel
Description
Terminal
Page
INIT
x*
ODB initialisation active
-
18
FLL
x*
ODB filling time active
-
18
STAB
x*
ODB stabilisation in progress
-
18
COL
x
Temperature collector
S1
18
TSTB
x
Temperature store 1 base
S2
18
TSTT
x
Temperature store 1 at the top
S3
18
TDIS
s*
Thermal disinfection temperature
S3
18
S4
x
Temperature sensor 4
S4
18
TR
x*
Temperature return sensor
S4
18
n1 %
x
Pump speed R1
R1
19
h P1
x
Operating hours R1
R1
19
h P2
x
Operating hours R2
R2
19
kWh
x*
Heat quantity kWh
-
19
MWh
x*
Heat quantity MWh
-
19
CDIS
s*
Countdown of monitoring period
-
19
SDIS
s*
Starting time display
-
19
DDIS
s*
Heating period display
-
19
TIME
x
Time
-
16
the adjusted thermostat switch-on temperature (AH O)
is reached. This function can optionally be combined with
up to three adjustable time frames.
Sensor S3 can also be optionally used as a reference sensor
for the thermal disinfection function OTD or the store
emergency shutdown option (OSEM).
Sensor S4 can optionally be connected for measurement
purposes. If heat quantity measurement (OHQM) is ac-
tivated, sensor S4 has to be connected as return sensor.
