Instruction of SR91 Split Pressurized Solar Hot Water System
Page 15 of 49
Factory set:
The first time section: default at 4:00 to start heating, and at 5:00 to stop heating, and
the switch-on temperature of heating is 40
o
C
，
switch-off temperature is 50
o
C
。
The second time section: default at 10:00 to start heating, and at 10:00 to stop heating,
The Third time section: default at 17:00 to start heating, and at 22:00 to stop heating,
and the switch-on temperature of heating is 50
o
C
，
switch-off temperature is 55
o
C
。
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, at the second time section,
start time is set at 10:00, but close time is also set at 10:00.
Timing heating function is run at the preset time section, 3 time sections can be set, and
within every time section, the desired temperature may be different. The adjustable range of
switch-on temperature is 0
o
C ~ (OFF-2
o
C), switch-off temperature range is (ON+2
o
C) ~
95
o
C.
SMT 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 automatically 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:
（
impossible to be adjusted
）
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.
