SR981S/SR982S operation manual of solar pump station
Page 78 of 85
Note:
Manual heating can only heat tank one time, after manual heating is triggered, when
temperature of tank rises up to the preset temperature, manual heating ceases, and
manual heating function will be deactivated automatically, if customer wants to heat again,
you need redo according to above steps.
8.12 Temperature checking function
Under standby status,
►Press “ ”button, you can check the value of temperature sensors T0 ~ T8,
week and time.
When checking temperature, T0 ~ T8 displays one by one, corresponding sensor signal
blinks. (TST) tank temperature.
Note:
Due to the different system, the available checking information is different.
Pump accumulated running time (Hp), current daily absorbed thermal energy (DHWH),
accumulated thermal energy (KWH) or (MWH) can only be checked after enabling the
(OHQM) thermal energy measuring function
9. Protection function
9.1 Memory protection
In case power failure occurs, controller keeps the parameter settings unchanged.
9.2 Screen protection
When no any press on button for 3 minutes, screen protection is activated automatically,
and then LED background lamp is switched-off. Through press any button to light LED
lamp again.
9.3 Pump P1/P2 dry running protection
Pump station is monitored that no liquid flows trough pump for 30 seconds, then pump is
stopped for 3 minutes; this monitoring is repeated for 3 times, then pump is ceased, “P1” or
“P2” blinks on the controller screen, dry running protection is activated.
Reasons of no flow:
Leakage on the pipeline
