Request HC1/DHW only: The diverting valve is connected hydraulically
only for heating circuit 1 and DHW and switches between DHW mode
and heat circuit 1 mode. All other requests are not connected
hydraulically via the diverting valve (DV) and the boiler pump, but rather
directly connected to the boiler.
Boiler pump at DHW (5775)
This parameter determines, whether the boiler pump for DHW charging is
switched on or off.
Solar controlling element (5840)
The solar heating system can also be operated with charging pumps
instead of with a collector pump and diverting valves for the storage tank
connection.
Charging pump: When used with charging pump all exchangers can be
flowed through simultaneously. Parallel or alternative mode is possible.
Diverting valve: When used with a diverting valve only one exchanger
can be flowed through. Only alternative mode is possible.
External solar exchanger (5841)
For solar schemes with two storage connections it must be set whether the
external heat exchanger is present and is used
together
for DHW and
buffer storage or only
for one of the two
.
Combi storage tank (5870)
Combined storage-specific functions are activated with this setting. For
instance, the buffer storage immersion heater can be used for heating as
well as for DHW.
No: No combined storage exists.
Yes: A combined storage exists.
Relay output QX1 (5890), Relay output QX2 (5891) und Relay
output QX3 (5892)
None: Relay outputs deactivated.
Circulating pump Q4: The connected pump serves as a DHW circulation
pump (see prog. no. 1660).
El imm heater DHW K6: With the connected immersion heater, the DHW
can be charged according to the operating side DHW storage operating
line immersion heater.
Important
The operating mode is set under prog.no. 5060.
Collector pump Q5: Connection of a circulating pump in case of solar
collector use.
Cons circuit pump VK1 Q15: Connection of a pump at the input Q15/18
for an additional consumer, which is requested via an Hx-input.
Boiler pump Q1: The connected pump is used for recirculation of the
boiler water.
Alarm output K10: Any new fault will be signalled by means of this alarm
relay. The contact is closed with the delay time selected under prog. no.
6612. If no fault message exists, the contact opens without delay.
Important
The alarm relay can be reset without having the fault remedied
(see prog. no. 6710). The alarm relay can also be closed
temporarily by a message which, for example, leads to restart.
Heat circuit pump HC3 Q20: Activating the pump heating circuit HC3.
Cons circuit pump VK2 Q18: Activating the consumer circuit VK2.
System pump Q14: Connection of a feed pump.
Heat gen shutoff valve Y4: Connection of a changeover valve for
hydraulic de-coupling of the heat generator from the rest of the heating
system.
Solid fuel boiler pump Q10: Connection of a circulation pump for the
boiler circuit for the connection of a solid fuel boiler.
9 Settings
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