System Layout 8 - Viessmann SCU224 User Manual

SCU224

System layout 8

The controller calculates the temperature difference bet-
ween collector sensor S1 and tank sensor S2. If the diffe-
rence is larger than or identical to the adjusted switch-on
temperature difference (DT O), the solar pump will be
operated by relay 1, and the tank will be loaded until the
switch-off temperature difference (DT F) or the maximum
tank temperature (S MX) is reached.
Arr 8
S1
R1
Display Channels
Channel Description
x*
INIT ODB initialization active
FLL x* ODB filling time active
x*
STAB ODB stabilization in progress
COL x Temperature collector
TSTB x Temperature tank 1 bottom
TSTT x Temperature tank 1 at the top
TSFB x Temperature solid fuel boiler
n1 % x Pump speed R1
n2 % x Pump speed R2
h P1 x Operating hours R1
h P2 x Operating hours R2
TIME x Time
24
|
A solid fuel boiler will be operated by relay 2, if the tempera-
ture difference between sensors S4 and S3 is larger than or
identical to the adjusted switch-on temperature difference
(DT3O), until the adjusted minimum (MN3O) and maximum
(MX3O) temperature thresholds of the fuel boiler and the
tank are reached.
S3
R2
S2
S4
Terminal Page
- 37
- 37
- 37
S1 37
S2 37
S3 37
S4 37
R1 38
R2 38
R1 38
R2 38
- 34