Operation manual of solar controller SR658
Page 65 of 105
OSE Spread loading function (only available at LLOGI/PRIO1,2,Su1 or Su2 mode)
In system 5, spread loading function will be activated.
When the spread temperature difference DTSE between collector and priority tank is
reached,
the second tank will be loaded in parallel unless it is blocked. If the spread temperature
difference falls 2K below
DTSE
temperature, the pump will be switched off. The collector
temperature should be higher than the tank temperature.
PDELR Pump delay running
Considering the trigger-on time of the electromagnetic valve this function delays the start of
the pump, if this function is activated, corresponding valve relay is triggered firstly, and pump
is delayed to start in 20 seconds.
Menu structure
Main
menu
Subm
enu 1
Subme
nu 2
Submen
u 3
Default
Set
Adjust
range
Adjust
step
Description
LLOGI
Tank heating logic
PRIO
1
1/2/SU1/SU
2/0
Tank priority logic
tLB
2min
1-30min
1min
Heating runtime
tRUN
15min
1-30min
1min
Heating rest time
OSTS
OFF
ON/OFF
Tank temperature set
option
TST1
45
℃
4-85
℃
1
℃
Temperature set of tank 1
TST2
45
℃
4-85
℃
1
℃
Temperature set of tank2
OSE
OFF
ON/OFF
Spread loading function
DTSE
40K
20-90K
1K
Spread temperature
difference
PDELR
0FF
ON/OFF
Pump delay running
function
