Operation manual of solar water controller SR868C8/SR868C8Q
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(DKWH) and accumulative thermal energy (KWH) or (MWH) can only be checked
after triggering of OHQM thermal energy balance function.
Press “+”“-” button can check the value of temperature sensors T1~ T4.
5. Protection function
5.1. Memory protection
In case power failure occurs, controller keeps the parameter settings unchanged.
5.2 Screen protection
When no any press on button for 3 minutes, screen protection is activated
automatically, and then LCD lighting lamp is switched-off. Through press any button to
light LCD lamp again.
6. Trouble shooting
6.1 Trouble protection
a
. When there is a break or short circuit between the connection of temperature
sensors, controller switches off the corresponding functions and no more output signals
are given, at the same time error signals are showed on the display.
If control unit does not work correctly, please check following points.
►Press “+”“-” button to check error code, signal displays on the LCD screen
