SR981S/SR982S operation manual of solar pump station
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screen.
► Press “SET” button, parameter “15” displays and blinks, factory set is “15 seconds”
► Press “ ” button to adjust time, adjustable range: 5~ 120 seconds.
►Press “ESC” button to exit the menu or wait for 20 seconds to exit, parameters are
saved automatically.
8.5.12.2 ISTP Pump interval run-off time
Setup steps:
To select submenu
ISTP, “ISTP 30” displays on the
screen.
► Press “SET” button, parameter “30” displays and blinks,
factory set is “30 minutes”
► Press “ ” button to adjust time, adjustable
range: 2~ 60 minutes.
►Press “ESC” button to exit the menu or wait for 20 seconds to exit, parameters are
saved automatically.
8.5.13 COOL Tank cooling function
Description:
Tank cooling function is independent from solar system, it is used to transfer the extra
thermal energy from tank to other heat release device, and as a result, tank temperature
can be kept at a constant value. So for this function, an extra pump R1 should be installed
in the system, corresponding tank is tank1, temperature controlled by T3.
For example:
We set the temperature of 70
o
C is the condition to run the cooling function, then when tank
temperature T3 rises up to 71
o
C, cooling function is activated automatically, pump R1
starts to work, when tank temperature drops to 67
o
C, the pump R1 is stopped.
Setup steps:
To access submenu COOL, “COOL - - -” displays on the
screen.
►Press “SET” button, parameter “- - -” blinks on the
