Operation manual of solar controller SR658
Page 74 of 105
►Press “↑”, “↓” button, to adjust the switch-on temperature
►Press “SET” or “ESC” button, to confirm the setting
►Press “↑”, “DTRPF 4K” displays on the screen
►Press “SET” button, “4K” blinks on the screen
►Press “↑”, “↓” button, to adjust the switch-off temperature
►Press “SET” or “ESC” button, to confirm the setting
►Press “↑”, “MINRPH 30
o
C” displays on the screen
►Press “SET” button, “30
o
C” blinks on the screen
►Press “↑”, “↓” button, to adjust the minimum temperature of heating return pipe
►Press “SET” or “ESC” button, to confirm the setting
(16
）
DLHTX Thermal energy transferring between 2 tanks
Note: this function is only available in system 13.
Function description:
Thermal energy transferred from tank 1 to tank 2
When tank 1 temperature reaches to the switch-on temperature
（
L1H2O
）
, and temperature
of tank 1 is larger than tank 2
’s, thermal energy will be transferred from tank 1 to tank 2,
circuit pump R2 is triggered. When tank 1 temperature reaches to the switch-off temperature
（
L1H2F
）
or temperature of tank2 rises to the temperature of tank 1, or tank2
’s temperature
reaches its maximum S2MAX, then circuit pump R2 is stopped.
Thermal energy transferred from tank 2 to tank 1
When tank 2 temperature reaches to the switch-on temperature
（
L2H1O
）
, and temperature
of tank 2 is larger than tank 1
’s, thermal energy will be transferred from tank 2 to tank 1,
circuit pump R3 is triggered. When tank 2 temperature reaches to the switch-off temperature
（
L2H1F
）
or temperature of tank 1 rises to the temperature of tank 2, or tank1
’s temperature
reaches its maximum SMAX, then circuit pump R3 is stopped.
Menu structure
