SR882 operation manual
~ 41 ~
4.7.4 MIN3 Minimum turn-on temperature of solid fuel boiler
Setup steps:
To select submenu MIN3
, “MIN3 30
o
C
” displays on
the screen.
►Press “SET” button, parameter “30
o
C” blinks on the
screen.
►Press “+” “-” button, to adjust the turn-off temperature, adjustable range:
(
10
o
C
~
MAX3-2
o
C
)
,factory set is
:
30
o
C
► Press “ESC” button to exit the menu or wait for 20 seconds to exit automatically,
parameters are saved automatically.
4.8 FUN Auxiliary function
The auxiliary functions of this controller can be set under
“FUN” menu; it is possible to
activate several auxiliary functions at the same time.
Note:
Sometimes, your selected function needs an extra signal input to connect temperature
sensor or an extra output to connect pump or electromagnetic valve. When all inputs and
outputs have been occupied, function you selected may not be available for activating. In
such case, you can
’t see the submenu options.
Following submenu can be accessed through menu “FUN”
Submenu under FUN
Description
Paragraph
DVWG
Anti legionnaires' function
4.8.1
COOL
Tank cooling function
4.8.2
AHO
Auto thermostat function
4.8.3
4.8.1 DVWG Anti legionnaires' function
Description:
In order to avoid occurring bacteria in water tank when the temperature of tank is lower for a
long time, controller will check the temperature of tank every 7 days in a period
automatically, if the temperature of tank is never over 70
o
C during this period, then at the
factory default time of 01:00 on Sunday every period auxiliary heating system is triggered
automatically to heat water until it rises up to 70
o
C
(
this is factory default set, impossible to
reset
)
, bacteria is killed by high temperature, thereafter function is deactivated.