Viessmann SCU224 User Manual page 21

SCU224
Adjustment Channels
Channel Description
Arr x System
DT1O x Switch-on temperature difference 1
DT1F x Switch-off temperature difference 1
DT1S x Nominal temperature difference 1
RIS1 x Rise control R1
n1MN x Minimum pump speed R1
S1 MX x Maximum temperature tank 1
DT2O x Switch-on temperature difference 2
DT2F x Switch-off temperature difference 2
DT2S x Nominal temperature difference 2
RIS2 x Rise control R2
n2MN x Minimum pump speed R2
S2MX x Maximum temperature tank 2
EM x Emergency temperature collector
OCC x Option collector cooling
CMX x* Maximum collector temperature
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
OCN x Option minimum limitation
CMN x* Minimum collector temperature
OCF x Option antifreeze
CFR x* Antifreeze temperature
PRIO x Priority
tLB x Break time
tRUN x Circulation runtime
DTSE x* Spread temperature difference
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
6 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
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
270 °F [130 °C] 40
OFF 41
230 °F [110 °C] 41
OFF 41
40.0 °Ra [20.0 K] 41
41
30.0 °Ra [15.0 K]
OFF 42
OFF 42
110 °F [40 °C] 42
OFF 42
50 °F [10 °C] 42
OFF 42
40.0 °F [4.0 °C] 42
1 43
2 min 43
15 min 43
70 °Ra [40 K] 43
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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