Menu: Expert - Cosmo Multi 2 Montage- Und Bedienungsanleitung

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4. Functions and options

4.4 Menu: Expert

System warning "DT too high"
Expert/DT too high
selection: „Yes", „No"
factory setting: „Yes"
g
System warnin "Non-ret. valve"
Expert/non-ret. val.
selection: „Yes", „No"
factory setting: „Yes"
Flow and return interchanged
Expert / FL/RE interchanged
selection: „Yes", „No"
factory setting: „No"
Message relay (error message)
Expert/Message rel.
selection: „Yes", „No"
factory setting: „No"
Chimney sweeper
Expert/chimney
selection: "Yes", "No"
factory setting: "No"
Expert/chimney sweeper
Solar shutdown
Expert/solar
selection: "Yes", "No"
factory setting: "Yes"
This message is shown, if solar loading has been car-
ried out for a period of 20 minutes with a differential
higher than 50 K.
The message function can be deactivated by selecting
"No".
This message is shown if between 11 p.m. and 5.00 a.m.
the collector temperature is higher than 40 °C or a store
is loaded because of a high temperature difference. The
message function can be deactivated by selecting "No".
This function is used for detecting an interchange of
the flow and return pipe or a badly placed collector
sensor. For this purpose, the collector temperature is
monitored for plausibility during the switch-on phases
of the solar pump. An error message will appear, if the
plausibility criteria have not been met 5 times in a row.
Activate this function by selecting "Yes". If the control-
ler detects a fault, the message relay is energised (e.g.
for signal lights).
These errors are:
• Sensor defective
• Real-time-clock (RTC) defective
• Storage module (EEPROM) defective
A message caused by one of the plausibility controls
(non-return valve, DT too high) does not activate the
relay.
This function is used for activating a given relay state
when required.- e. g. flue gas measurement if the system
controls a boiler. Activate this function by selecting "Yes".
Adjust the required relay status in the chimney sweeper
menu (expert / chimney sweeper).
If the chimney sweeper function is activated, "chimney
sweeper" is indicated in the main menu.
In this menu, the menu level and „solar" control are
deactivated. The sensors of the solar thermal system
will no longer be monitored for errors.