en
15
Installation
Indications,
functions and options
Messages
Operation and function
Recooling function
OREC
Recooling option
Adjustment range: OFF / ON
Factory setting: OFF
When the recooling function is activated, the controller aims to cool down the
store during the night in order to prepare it for solar loading on the following day.
If the adjusted maximum store temperature (
S MX)
is exceeded and the collector
temperature falls below the store temperature, the system will be reactivated in
order to cool down the store. Cooling will continue until the store temperature has
fallen below the adjusted maximum store temperature (
S MX
) again. A hysteresis of
2 K is set for the recooling function.
Reference thresholds for the recooling function are
DT O
and
DT F.
While recool-
ing is active,
und
mASHING WILLBEINDICATEDONTHEDISPLAY
Tube collector function
OTC
Tube collector function
Adjustment range: OFF / ON
Factory setting: OFF
If the controller detects an increase by 2 K compared to the previously stored col-
lector temperature, the solar pump will be switched on for about 30 s in order to
DETECTTHEmUIDTEMPERATURE4HECURRENTCOLLECTORTEMPERATUREWILLTHENBESAVED
as a new reference value. If the measured temperature (new reference value) is
exceeded by 2 K, the solar pump will again run for 30 s. If the switch-on difference
between the collector and the store is exceeded during the runtime of the solar
pump or the loading break, the controller will automatically switch to solar loading.
If the collector temperature decreases by 2 K during a loading break, the switch-on
value for the tube collector function will be recalculated.
Heat quantity measurement
OHQM
Heat quantity measurement
Adjustment range: OFF / ON
Factory setting: OFF
FMAX
Flow rate in l/min
Adjustment range: 0.5 … 100.0
Factory setting: 6.0
MEDT
(EATTRANSFERmUID
Adjustment range: 0 … 3
Factory setting: 1
MED%
Antifreeze ratio
in Vol-% (MED% is not indicated when
MEDT 0 or 3 is used.)
Adjustment range: 20 … 70 %
Factory setting: 45 %
If OHQM is activated, the heat quantity gained can be calculated and displayed. Heat
QUANTITYMEASUREMENTISPOSSIBLEIFAmOWMETERISUSED
4HEHEATQUANTITYBALANCINGESTIMATION USESTHEDIFFERENCEBETWEENTHEmOWAND
RETURNTEMPERATURESANDTHEENTEREDmOWRATEATPUMPSPEED
Î
2EADTHEmOWRATELMIN ANDADJUSTITINTHE
FMAX
channel.
Î
!DJUSTTHEANTIFREEZETYPEANDCONCENTRATIONOFTHEHEATTRANSFERmUIDINTHE
channels
MEDT
and
MED%
.
(EATTRANSFERmUID
0: Water
1: Propylene glycol
2: Ethylene glycol
3: Tyfocor
®
LS / G-LS
Summary of Contents for DeltaSol BS/2 HE
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