Instruction of SR81 Split Pressurized Solar Hot Water System
Page 26 of 59
► Press “SET” or “ESC” to save the setting
► Press “+”, “DTF 4K” displays on the screen
► Press “SET”, “4K” blinks
► Press “+/-”, to adjust the switch-off temperature of solar circuit pump
► Press “SET” or “ESC” to save the setting
► Press “+”, “DTS 10K” displays on the screen
► Press “SET”, “10K” blinks
► Press “+/-”, to adjust the standard temperature difference of pump speed control function
► Press “SET” or “ESC” to save the setting
► Press “+”, “RIS 2K” displays on the screen
► Press “SET”, “2K” blinks
► Press “+/-”, to adjust the increase range of temperature difference of pump speed control
function
► Press “SET” or “ESC” to save the setting
► Press “+”, “SMX 70
o
C” displays on the screen
► Press “SET”, “70
o
C” blinks
► Press “+/-”, to adjust the maximum temperature of tank
► Press “SET” or “ESC” to save the setting
► Press “+”, “SMAX S3” displays on the screen
► Press “SET”, “S3” blinks
► Press “+/-”, select the sensor for maximum temperature of tank (S3 for T3, S2 for T2)
► Press “SET” or “ESC” to save the setting
► Press “+”, “HYST 2K” displays on the screen
► Press “SET”, “2K” blinks
► Press “+/-”, to adjust the hysteresis of tank maximum temperature
► Press “SET” or “ESC” to save the setting
8.3 COL Collector function
Function description
OCEM Collector emergency shutdown
When the collector temperature exceeds the adjusted collector emergency temperature,
Then solar pump (R1) switches off in order to protect the system components against
overheating (collector emergency shutdown). If the maximum collector temperature (OCEM)
is exceeded, sign blinks on the screen.
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