Operation Manual

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Siemens Schweiz AG User Manual CE1U2354en
HVAC Products H.. pumps 23. August 2007
1642 Legionella funct weekday
Monday…Sunday
1644 Legionella funct time
1645 Legionella funct setpoint
1646 Legionella funct duration
1647 Legionella funct circ pump
•
Periodically
The legionella function is repeated according to the period of time set (operating line
1641). The legionella setpoint is attained via a solar plant, independent of the period of
time set, the period of time will be newly started.
•
Fixed weekday
The legionella function can be activated on a fixed weekday (operating line 1642).
When using this setting, heating up to the legionella setpoint takes place on the
selected weekday, independent of previous storage tank temperatures.
During the time the legionella function is performed, the DHW circulating pump can be
activated.
During the time the legionella function is carried out, there is a risk of scalding when
opening the taps.
Circulating pump
Line no. Operating line
1660 Circulating pump release
Time program 3 / HCP
DHW release
Time program 4 / DHW
Time program 5
1661 Circulating pump cycling
1663 Circulation setpoint
When the function is activated, the circulating pump is switched on for 10 minutes
within the release time and then switched off again for 20 minutes.
If a sensor is installed in the DHW distribution pipe, the controller will monitor its actual
value during the time the legionella function is performed. The adjusted setpoint must
be maintained at the sensor during the adjusted “Dwelling time“.
6.9 H.. pumps
H.. pumps
Line no. Operating line
2010 H1 Excess heat draw
2012 H1 with buffer storage tank
2014 H1 prim contr/system pump
2015 H1 Refrig demand
2-pipe system
4-pipe system
2035 H2 Excess heat draw
2037 H2 with buffer storage tank
2039 H2 prim contr/system pump
2040 H2 Refrig demand
2-pipe system
4-pipe system
2046 H3 Excess heat draw
2048 H3 with buffer
2050 H2 prim contr/system pump
Legionella function
Legionella funct circ pump
Circulating pump cycling
Circulation setpoint
RVS43.. only
RVS43.. onl
y
RVS43.. only
RVS43.. only
RVS43.. only..