Expert area Part 2: Overview of display values and settings
40
! Disabling the HS1 only occurs if the solid fuel boiler
is integrated in the HS1 controller.
If the cooling function is activated, it will also affect
the solid fuel boiler function.
23 = Solar integration
T-SOL PANEL = Temperature of the solar collector
T-BUFFER B = Temperature of the storage tank at the in-
let area (connector III, pin 2 + 3)
ON: T-SOL PANEL >
[T-BUFFER B + HYST T-MF1+ 5K]
OFF: T-SOL PANEL <
[T-BUFFER B + HYST T-MF1]
The pump is switched on when the temperature of the so-
lar collector exceeds the temperature of the buffer storage
at the inlet area (T-BUFFER B) by the hysteresis (HYST
MF 1 + 5 K). Switching off occurs when the temperature
drops 5 K below the switch-on temperature.
Safety / system protection:
OFF: T-BUFFER B > T-MF1
ON: T-BUFFER B < [T-MF1– 5K]
Switching-off occurs when the temperature of the storage
tank at the inlet area exceeds the set limit temperature
(T-MF1). The pump is enabled again when the storage
tank temperature drops below the limit temperature by 5 K.
24 = return flow temperature increase
T-RETURN = Return temperature of system
ON: RETURN TEMP < T-MF1
OFF: RETURN TEMP >
[T-MF1+ HYST T-MF1]
The return flow temperature increase pump is switched on
if the return flow temperature drops below the set limit
temperature (T-MF1). It is switched off again when the re-
turn flow temperature exceeds the set limit temperature by
the Hysteresis (HYST T-MF1).
32 = Direct heating circuit
Is activated by means of a short circuit at the sensor input
of relay 1 and switches the heating circuit pump ON. There
is an after-run after the sensor short circuit is cancelled.
The HS obtains a set temperature value from the parame-
ter " T-MF1 “.
FUNC RELAY 2 (function selection relay 2)
00 = no function
01 = Header pump
ON: When heat is requested by a consumer
OFF: Without consumer heat request
If at least one consumer in the system requests heat the
pump is switched on. The after-run function is effective af-
ter the heat generator is switched on.
02 = Circulation
Switching the relay according to the circulation program
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