Viessmann SCU224 User Manual page 31

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
nMN x Minimum pump speed
S MX x Maximum tank temperature
EM x Emergency temperature collector
CMX s Maximum collector temperature
OCN x Option minimum limitation
CMN x* Minimum collector temperature
OCF x Option antifreeze
CFR x* Antifreeze temperature
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
OHQM x Option energy metering
FMAX x* Maximum flow
MEDT x* Antifreeze type
MED% x* Antifreeze concentration (only if MEDT = propylene or ethylene)
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.
s Channel is specifically available in this system layout
Specification
Factory setting Page
10 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
270 °F [130 °C] 40
230 °F [110 °C] 41
OFF 42
50 °F [10 °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
OFF 44
6.0 l 44
1 44
45 % 44
Auto 46
Auto 46
En 46
°C 46
46
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