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Protective functions
5. - Protective functions
5.1. - System protection
Priority protection
Protection of the solar circuit protects its components from overheating. If “
SP T on
”
is exceeded at the collector for over 1 minute, the pump is switched off. The collector
is left at high temperature. The pump is activated again when the temperature drops
below “
SP T off
”.
The collector remains uncooled at a very high temperature. That can lead
to shorter service life of solar fluid. If you use this option, take care to check
solar fluid quality regularly.
5.2. - Collector protection
If „CP Ton” is exceeded at the collector sensor, the pump is switched on in order to
cool the collector down. The pump turns off when the collector temperature drops be-
low „CP Toff” or the temperature “
Storage (X) maximum
” is exceeded in the storage
or pool. In systems with 2 storage tanks only the lower-priority tank or pool is used for
collector cooling.
When this function is active, a storage tank or swimming pool may get
heated up to “Storage (X) maximum”, over Tmax S2 (see 4.2. - Tmax S)
which might cause damage to the system. When only a pool is heated, it
is not used to cool down solar collectors.
Menu “5. Protections” can be used to acti-
vate and set various protective functions.
The menu is closed by pressing “esc” or
selecting “Exit protections“.
Warning
This does not under any circum-
stances replace the safety facilities
to be provided by the customer!
Warning
Danger
