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Installation Indications, functions and options MessagesCommissioningOperation and function
Display channels
Channel Description Connection terminal Page
INIT x* ODB initialisation active - 13
FLL x* ODB lling time active - 13
STAB x* ODB stabilisation in progress - 13
COL x Temperature collector S1 13
TST x Temperature store S2 13
S3 x Temperature sensor 3 S3 14
TSTT x* Temperature store top S3 13
S4 x Temperature sensor 4 S4 14
TFL x* Temperature ow sensor S1 / S4 / VFD 14
TR x* Temperature return sensor S4 / VFD 14
VFD x* Temperature Grundfos Direct Sensor™ VFD 14
L/h x* Flow rate Grundfos Direct Sensor™ VFD 14
n % x Speed R1 14
hP x Operating hours R1 15
kWh x* Heat quantity in kWh - 14
MWh x* Heat quantity in MWh - 14
TIME x Time - 17
Adjustment channels
Channel Description Factory setting Page
DT O x Switch-on temperature difference R1 6.0 K [12.0 °Ra] 15
DT F x Switch-off temperature difference R1 4.0 K [8.0 °Ra] 15
DT S x Set temperature difference R1 10.0 K [20.0 °Ra] 16
RIS x Rise R1 2 K [4 °Ra] 16
PUM x Pump control type R1 PSOL 16
nMN x Minimum speed R1 30 % 16
nMX x Maximum speed R1 100 % 17
S MX x Maximum store temperature 60 °C [140 °F] 17
OSEM x Store emergency shutdown option OFF 17
EM x
Collector emergency temperature 130 °C [270 °F] 17
Collector emergency temperature if ODB is
activated:
95 °C [200 °F] 17
OCC x Collector cooling option OFF 18
CMX x* Maximum collector temperature 110 °C [230 °F] 18
OSYC x System cooling option OFF 18
Adjustment channels
Channel Description Factory setting Page
DTCO x* Switch-on temperature difference cooling 20.0 K [40.0 °Ra] 18
DTCF x* Switch-off temperature difference cooling 15.0 K [30.0 °Ra] 18
OSTC x Store cooling option OFF 19
OHOL x* Holiday cooling option OFF 19
THOL x* Holiday cooling temperature 40 °C [110 °F] 19
OCN x Collector minimum limitation option OFF 19
CMN x* Collector minimum temperature 10 °C [50 °F] 19
OCF x Antifreeze option OFF 19
CFR x* Antifreeze temperature 4.0 °C [40.0 °F] 19
GFD x Grundfos Direct Sensor™ OFF 20
OHQM x Heat quantity measurement option OFF 20
SEN x* VFD allocation 2 21
FMAX x* Maximum ow rate 6.0 l/min 20
MEDT x* Antifreeze type 1 21
MED% x* Antifreeze concentration (only if MEDT =
propylene or ethylene glycol)
45 % 21
ODB x Drainback option OFF 21
tDTO x* ODB switch-on condition - time period 60 s 22
tFLL x* ODB lling time 5.0 min 22
tSTB x* ODB stabilisation time 2.0 min 22
MAN x Manual mode R1 Auto 22
LANG x Language dE 22
UNIT x Temperature unit °C 23
RESE x Reset - back to factory settings 23
######## Version number
Legend:
Symbol Description
x Channel is available
x* Channel is available, if the corresponding option is activated.
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General