Viessmann SCU 123 Manual page 5

SCU 123
Adjustment channels
Channel Factory setting Change to Description
DT1O 12 °Ra
DT2O 12 °Ra
DTF 8 °Ra
TAR 140 °F
TMN 2 min
n1MN 30 %
n2MN 30 %
S MX 140 °F
EM 270 °F
OCN OFF
CMN 50 °F
OCF OFF
CFRO 39 °F
CFRF 41 °F
O TC OFF
TCST 07:00
TCEN 19:00
TCRU 30 s
TCIN 30 min
OHQM OFF
FMAX 1.6 gal/min
MEDT 1
MED% 45 %
MAN1 Auto
MAN2 Auto
UNIT °F
RESET
W...
Switch-on temperature - primary loop
Switch-on temperature - secondary loop
Switch-off temperature - secondary loop
Target temperature
Minimum runtime
Minimum pump speed R1
Minimum pump speed R2
Maximum tank temperature
Collector emergency shutdown temperature
Collector minimum limitation option
Minimum collector temperature
Antifreeze function
Antifreeze switch-on temperature
Antifreeze switch-off temperature
Evacuated tube collector function
Evacuated tube collector function starting time
Evacuated tube collector function ending time
Evacuated tube collector function runtime
Evacuated tube collector function standstill interval
Energy metering function
Maximum flow rate
Antifreeze type
Antifreeze concentration
Operating mode R1
Operating mode R2
Temperature unit °C / °F
Reset to factory setting
Version number
Page
12
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