Operation manual of solar controller SR1568
Page 52 of 87
NoAux : No back-up heat source
Electric : Electrical heater as heating back-up
Boiler: Boiler as heating back-up
T_Sensor: Select sensor for timing heating function, default sensor is T3
Timing heating
Timing heating function is independent of solar system; it is used to control back-up heat
source to heat tank.
Timing heating function is run at the preset time section, 3 time sections can be set, start
time and close time can be set by press button, per press means 1 minute. If you set the start
time and close time with a same value, which means within this time section, the timing
heating function is switched-off. For example, if you want to run the back-up heating from
06:00 am to 09:00 am, then you set t1O is 06:00 am, set t1F is 09:00 am, default the first
timing section is 06:00 am to 22:00 pm, if all time is set with 00:00 value, that means the
timing heating function is switch-off.
SMT_HT: Intelligent heating
At the case that solar energy is insufficient to heat the tank, in order to ensure user has
sufficient hot water, controller will check the temperature of tank aromatically at the preset
time, if tank’s temperature is not reached to the desired temperature, then back-up heat
device will be triggered, and when tank’s temperature rises up to the desired value, then
back-up heat device stops.
Factory set:
Default at 13:00 of the first time section to trigger the back-up heat device to heat tank to 30
o
C, Default at 14:00 of the second time section to trigger the back-up heat device to heat tank
to 35
o
C, default at 15:00 of the third time section to trigger the back-up heat device to heat
tank to 40
o
C, default at 16:00 of the forth time section to trigger the back-up heat device to
heat tank to 45
o
C, default at 17:00 of the fifth time section to trigger the back-up heat device
to heat tank to 50
o
C.
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