© Caleffi 11236_iSolar_Plus.mon
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VBus
S1
S4
S2
S3
R1
R2
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
Display Channels
Channel
Description
Terminal
Page
INIT
x*
ODB initialization active
-
37
FLL
x*
ODB filling time active
-
37
STAB
x*
ODB stabilization in progress
-
37
COL
x
Temperature collector
S1
37
TSTB
x
Temperature tank 1 bottom
S2
37
TSTT
x
Temperature tank 1 at the top
S3
37
TSFB
x
Temperature solid fuel boiler
S4
37
n1 %
x
Pump speed R1
R1
38
n2 %
x
Pump speed R2
R2
38
h P1
x
Operating hours R1
R1
38
h P2
x
Operating hours R2
R2
38
TIME
x
Time
-
34
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 can optionally be used as reference
sensor for the tank emergency shutdown option (OSEM).
