SR981S/SR982S operation manual of solar pump station
Page 52 of 85
maximum temperature of tank 1, adjustable range is(2
o
C
～
95
o
C), default set is 60
o
C
►Press “SET” button to activate and deactivate this function, if function deactivated,
“SMX1 - - -” displays on the screen.
► Press “ESC”
button to exit the menu or wait for 20 seconds to exit, parameters are
saved automatically.
SMX1 sign shows on the screen, it indicates that this function is activated.
8.4.7 SMX2 Maximum temperature of tank 1
Setup steps:
To access main menu TEMP, then select submenu SMX2, “SMX2 60
o
C” shows on the
screen.
►Press “SET” button, parameter “60
o
C” blinks
►Press
“
” button to adjust the value of maximum
temperature of
tank 2
, adjustable range is(2
o
C
～
95
o
C),
default set is 60
o
C
►Press “SET” button to activate and deactivate this
function, if function deactivated, “SMX 2- - -” displays on the screen.
► Press “ESC”
button to exit the menu or wait for 20 seconds to exit, parameters are
saved automatically.
8.4.8 MAX1 Maximum switch-off temperature for heat transfer between tank and
heat return
Description:
Example with system 10
When temperature difference between tank T4 and heating return T6 meets the
switch-on condition DT2O, then electronic magnetic valve R1 is switched to tank,
heating return is heated by tank; when temperature difference between tank T4 and
heating return T6 drops to the switch-off condition DT2F, or temperature of tank T4
drops to its minimum switch-on temperature MIN1, or temperature of heating return T6
rises up to its maximum switch-off temperature, then electronic magnetic valve is
closed.
