Operation manual of SR528Q wireless controller
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6.5.1 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, auxiliary heating system is triggered automatically
to heat water until its temperature rises up to 70
o
C
（
this is factory default set, impossible to
reset
）
, bacteria is killed by high temperature, thereafter function is deactivated.
Setup steps:
To select submenu DVWG,
“DVWG OFF” shows on the screen. Default set is “OFF”.
►Press “Set” button, parameter “OFF” blinks on the
screen.
►
Press
“▲ ▼
” button and “DVWG ON” shows on the
screen, then to activate this function.
►Press “Esc” button to exit the menu or wait for 20 seconds to exit automatically,
parameters are saved automatically.
6.5.2 CIRC DHW circulation pump on/off
Setup steps:
To select submenu
CIRC, “CIRC OFF” shows on the
screen. Default set is
“OFF”.
►Press “Set” button, parameter “OFF” blinks on the
screen.
►
Press
“▲ ▼
” button and “CIRC ON” shows on the
screen, then to activate this function.
►Press “Esc” button to exit the menu or wait for 20 seconds to exit automatically,
parameters are saved automatically.
6.5.3 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 should be installed in
