SUNFLOWER SR868C8, Инструкция по установке и эксплуатации

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Operation manual of solar water controller SR868C8/SR868C8Q
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- 15 -
4.4 Main menu - THET timing heating
Description:
Electrical heater, gas boiler or oil boiler can be integrated into solar system used as
back-up of system, and they can be triggered automatically at preset time by preset
temperature. Within a preset time section, when the temperature (T3) of top part of
tank drops below the preset switching-on temperature of this function, back-up heating
starts to work, when T3 rises up to the preset turning off temperature, back-up heating
is stopped. Within 24 hours, three time sections can be set with this controller.
Factory set:
The first time section: back-up heating function starts at 4:00 and ends at 5:00 am.
Within this time section, switch-on temperature is 40
℃
, switch-off temperature is 45
℃
.
The second time section: from 10:00 to 10:00 am, it means there is no back-up heating
in this time.
The third time section: back-up heating function starts at 17:00 and ends at 22:00 pm.
Within this time section, the switch-on temperature is 50
℃
, switch-off temperature is
55
℃
.
The switch-on temperature adjustable range: 10
℃
~ (OFF-2
℃
)
The switch-off temperature adjustable range: (ON+2
℃
) ~ 80
℃
If you want to shut off one timing heating, then you can set the turning on time and
turning off time same value (for example, the second time section no this function, then
you can set turning on/off time is 10:00 ~ 10:00)
When time is outside of the preset time section, back-
up heating doesn’t work
automatically even when the tank temperature reaches the switch
–on temperature of
heating.
Note:

When there is no sensor installed in the top part of tank (no T3 sensor), controller
will take the signal of T2 (sensor in bottom of tank) automatically to control this
function.

The time in this controlled is 24 hours, when you set time section, the switch-off
time of heating should be larger than switch-on time. For example: if you set the
switch-on time of heating is at 17:00, but switch-off time of heating is 6:00, then
this setting doesn’t take effect, that means within this time section, heating function
doesn’t work. The correct set is like flowing: it should be divided into two time
sections, one time section is from 17:00 to 23:59, the other time section is from
00:00 to 06:00.
Setup steps:
Under standby status, access main menu tHET
►Press “SET” button, access THET program to set parameter, “tH 1o 04:00” displays
on screen, the switch-on time and temperature for first time section of heating function