Solar working station operation manual SR881
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Following submenu can be accessed through menu “FUN”
Submenu
Menu description
Paragraph
DVWG
Anti-Legionella function
4.5.1
nMIN
Solar circuit pump speed adjusting
（
RPM speed
controlling
）
4.5.2
DTS
Standard temperature difference
（
for circuit
pump speed adjusting
）
4.5.2.1
RIS
Increase rate (for circuit pump speed adjusting)
4.5.2.2
FTYP
Type of Flow meter
4.5.3
OHQM
Thermal energy measuring
4.5.4
FMAX
Flow rate
4.5.4.1
MEDT
Type of heat transfer liquid
4.5.4.2
MED%
Concentration of anti-freezing liquid
4.5.4.3
INTV
Pump interval function
4.5.5
TSTP
Pump interval time
4.5.5.1
TRUN
Pump running time
4.5.5.2
4.5.1 DVWG Anti-Legionella function
Description:
In order to avoid occurring bacteria in water tank when the temperature of tank is lower for a
long time, controller will automatically check the temperature of tank every 7 days (a period),
if the temperature of tank is never over 70
o
C during this period, then at the default time
01:00 am on every Sunday of the period auxiliary heating system is triggered automatically
to heat water until it rises up to 70
o
C, bacteria is killed by high temperature, whereafter
function is deactivated.
Setup steps:
To access main menu FUN, then select sub
menu DVWG, “DVWG OFF” displays on screen.
Default set is “OFF”.
►Press “SET” button, parameter” OFF” blinks on the
screen.
►R”“-”button, “DVWG ON” blinks on the screen,
function is triggered.
►Press “ESC” button to exit the menu or wait for 20 seconds to exit automatically,
parameters are saved automatically.
