SR501 EN Operation Manual
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Deactivate the fuction:
► Press ”SET ” button and hold on, then power on, when screen
display ”HRES” and hearing the buzzer”beep”1 sound, release the “SET” button,
it’s mean that parameter load into factory default.
(The “water level and temperature sensor” has been turned off high sensitivity
mode)
Note: Hold for “ESC” button, access into inquiry menu, it’s inquiry sensitivity
mode(HRES) state” on” or “off”.
8. Pipe anti-freezing protection function
Note
:
when user selects pipe anti-freezing temperature control mode,
then sensor T2 should be connected to controller, sensor T2 is not included in
the standard delivery list, it should be purchased separately.
Description:
2 control modes for pipe anti-freezing function are designed in this controller:
1) Temperature controlled pipe anti-freezing
2) Time controlled pipe anti-freezing
•
Temperature controlled pipe anti-freezing
In winter, when outdoor temperature is lower, controller will trigger the pipe
anti-freezing protection function to avoid pipe broken due to freezing. A sensor
T2 installed on the pipe is needed, when controller detects the T2 temperature
is lower than the preset switch-on temperature of pipe anti-freezing function,
controller will trigger the pipe electrical belt R2 to heat pipe until its temperature
rises to the desired temperature.
For example: if you set the switch-on temperature is 1
o
C
,
then when T2
temperature drops below 1
o
C
,
pipe anti-freezing function is triggered, and it