Altek SR1128 - CMN Low Temperature Protection of Collector

SR1128 operation manual
~19~
circulation or when tank temperature rises its emergency temperature (95
o
C).
When displays, and blinks on the screen, it indicates that tank emergency
temperature reaches, tank temperature is ≥95ć
Setup steps:
To access main menu TEMP, then select submenu CMX, “CMX 110
o
C” displays on screen
►Press “SET” button, “110
o
C” blinks.
►Press “+” “-” button to adjust collector limited
maximum temperature , adjust range :˄70
o
C190
o
C˅,
Factory set is 110
o
C
►Press “SET” button to activate and deactivate this
function, if deactivate the function, “CMX - - -” displays on screen.
► Press “ESC” button to exit menu or wait for 20 seconds to exit automatically, set
parameters are saved automatically.
CMX signal displays on screen, it indicates that collector cooling function is activated.
5.3.4 CMN low temperature protection of collector
Description:
When the actual temperature of collector is below the preset CMN temperature, solar circuit
pump is ceased, even when the temperature difference between collector and storage
exceeds switch-on temperature difference, solar pump doesn’t work yet. When the
temperature of collector is 3
o
C higher than the preset CMN temperature, solar circuit pump
is standby to work, controller exits this program.
Setup steps:
To access main menu TEMP, then select submenu CMX, “CMN - - -” displays on screen,
default set is OFF.
►Press “SET” button, default off signal “- - -” blinks on
screen.
►Repress “SET” button to activate and deactivate this
function.
►Press “+” “-” button to adjust the low protection temperature of collector CMN, adjustable
range (00
o
C 90
o
C ), after activate the function, factory set is 10
o
C
► Press “ESC” button to exit the menu or wait for 20 seconds to exit automatically,
parameters are saved automatically.