Viessmann SCU224 User Manual page 23

SCU224
Adjustment Channels
Channel Description
Arr x System
DT O x Switch-on temperature difference
DT F x Switch-off temperature difference
DT S x Nominal temperature difference
RIS x Rise control R1 / R2
n1MN x Minimum pump speed R1
S MX x Maximum tank temperature
n2MN x Minimum pump speed R2
EM1 x Emergency temperature collector
EM2 x Emergency temperature collector
OCC1 x Option collector cooling collector 1
CMX1 x* Maximum temperature collector 1
OCC2 x Option collector cooling collector 2
CMX2 x* Maximum temperature collector 2
OSYC x Option system cooling
DTCO x* Cooling switch-on temperature difference
DTCF x* Cooling switch-off temperature difference
OSTC x Option tank cooling
OHOL x* Option holiday cooling
THOL x* Holiday cooling temperature
OCN1 x Option minimum limitation collector 1
CMN1 x* Minimum temperature collector 1
OCN2 x Option minimum limitation collector 2
CMN2 x* Minium temperature collector 2
OCF1 x Option antifreeze collector 1
CFR1 x* Antifreeze temperature collector 1
OCF2 x Option antifreeze collector 2
CFR2 x* Antifreeze temperature collector 2
O TC x Option tube collector
TCST x* OTC starting time
TCEN x* OTC ending time
TCRU x* OTC runtime
TCIN x* OTC standstill interval
MAN1 x Manual operation R1
MAN2 x Manual operation R2
LANG x Language
UNIT x Temperature unit
RESE x Reset - back to factory defaults
W0050100 Version number
Legend:
Symbol
x Channel is available
x* Channel is available if the corresponding option is activated.
Specification
Factory setting Page
7 39
12.0 °Ra [6.0 K] 39
8.0 °Ra [4.0 K] 39
20.0 °Ra [10.0 K] 39
4 °Ra [2 K] 39
30 % 39
140 °F [60 °C] 40
30 % 39
270 °F [130 °C] 40
270 °F [130 °C] 40
OFF 41
230 °F [110 °C] 41
OFF 41
230 °F [110 °C] 41
OFF 41
41
40.0 °Ra [20.0 K]
30.0 °Ra [15.0 K] 41
OFF 42
OFF 42
110 °F [40 °C] 42
OFF 42
50 °F [10 °C] 42
OFF 42
50 °F [10 °C] 42
OFF 42
40.0 °F [4.0 °C] 42
OFF 42
40.0 °F [4.0 °C] 42
OFF 44
07:00 44
19:00 44
30 s 44
30 min 44
Auto 46
Auto 46
En 46
°C 46
46
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