Channel Overview; Display Channels - Viessmann SCU224 User Manual

SCU224

4. Channel overview

4.1 Display channels

Indication of drainback time periods
Initialization
INIT:
ODB initialization active
Filling time
FLL:
ODB filling time active
Stabilization
STAB:
Stabilization
Indication of collector temperatures
COL, COL1, COL2:
Collector temperature
Display range: -40 ... +500 °F
[-40 ... +260 °C]
Indication of tank temperatures
TST, TSTB, TSTT,
TST1, TST2, TDIS:
Tank temperatures
Display range: -40 ... +500 °F
[-40 ... +260 °C]
Indication of sensors 3 and 4
S3, S4:
Sensor temperatures
Display range: -40 ... +500 °F
[-40 ... +260 °C]
Indication of other temperatures
TSFB, TRET, TR:
Other mea sured tempe ratures
Display range: -40 ... +500 °F
[-40 ... +260 °C]
Note:
The displayed values and adjustment channels
depend on which system layout, which options
and functions have been selected. Only values
and adjustment channels available for the indivi-
dual settings selected will appear in the menu.
Indicates the time adjusted in tDTO, running backwards.
Indicates the time adjusted in tFLL, running backwards.
Indicates the time adjusted in tSTB, running backwards.
Indicates the current collector temperature.
• COL : collector temperature (1-collector system)
• COL1 : collector temperature 1
• COL2 : collector temperature 2
Indicates the current tank temperature.
• TST : tank temperature (1-tank system)
• TSTB : tank temperature bottom
•
TSTT : tank temperature top
(Arr = 3 and 4 only)
• TST1 : temperature tank 1 (2-tank-systems)
• TST2 : temperature tank 2 (2-tank-systems)
•
TDIS : thermal disinfection temperature
(Arr = 3 only; replaces TSTT if, during thermal disin-
fection, the heating period DDIS is active)
Indicates the current temperature of the corresponding
additional sensor (without control function).
• S3
: temperature sensor 3
• S4 : temperature sensor 4
Note:
S3 and S4 will only be indicated if the temperature
sensors are connected.
Indicates the current temperature of the corresponding
sensor.
• TSFB : temperature solid fuel boiler
• TRET : temperature heating return preheating
• TR : temperature return
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