Solvis DeltaControl Manual Del Usuario página 13

DeltaControl – Operation
Protective Functions
• Frost protection: Must be activated
( "System Diagram" section, p. 11)
if Tyfocor is not being used in the
solar circuit. If the collector tempera-
ture falls below 5°C, the solar pump
is activated and the solar circuit is
supplied with storage tank heat.
• System protection: The solar circuit
pump switches off if the collector
temperature exceeds 120°C. The
controller resumes normal operation
when the collector temperature
returns to below 100°C. (These limits
are not configurable.)
• Pump blocking protection: To prevent
the solar circuit pump becoming
blocked during long periods of down-
Resistance measurement values for the PTC Pt1000
Sensors that are not connected
have resistance values that are
shown in the table at various
Temp. [°C] [Ohm]
-20
-10
0 1,000
10 1,039
20 1,077
N 15-M – Subject to technical changes 02.17
Temp. [°C]
921 30
960 40
50
60
70
time, the controller switches the
pump on for 30 seconds every 10
days. (These limits are not config-
urable.)
• Flow monitoring: Notification is given
if flow impairments occur. These may
arise, for example, from a pump fault
or steam being present in the sys-
tem. The pump is not switched off.
• Sensor monitoring: Sensors and sen-
sor lines are constantly monitored
and faults shown on the display
( "Status Readouts", p. 14).
• Power outage protection: Standard
values are saved regardless of how
long mains power is disconnected.
temperatures. You can check these if
you suspect that a sensor is faulty.
[Ohm] Temp. [°C]
1,116 80
1,155 90
1,194 100
1,232 120
1,271 140
EN
[Ohm]
1,309
1,347
1,385
1,461
1,535
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