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Legionella Function; Circulating Pump - Siemens Albatros2 RVS46 User Manual

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Legionella function

Legionella function
Legionella funct circ pump

Circulating pump

66/100
Siemens Schweiz AG
HVAC Products
When both space heating and DHW heating demand heat, the "DHW priority" function
ensures that during DHW charging the boiler's capacity is used primarily for DHW.
Absolute priority
The mixing and pump heating circuit stay locked until DHW heating is finished.
Shifting priority
If the capacity of the heat source is not sufficient, the mixing and pump heating circuit
will be restricted until DHW is heated up.
No priority
DHW heating and space heating take place at the same time.
In the case of tightly sized boilers and mixing heating circuits, it can occur that the DHW
setpoint will not be reached if space heating demands considerable amounts of heat.
Mixing heating circuit shifting, pump heating circuit absolute
The pump heating circuits stay locked until the DHW storage tank is heated up. If the
capacity of the heat source is not sufficient, the mixing heating circuits will also be
restricted.
Line no.
Operating line
1640
Legionella function
Off
Periodically
Fixed weekday
1641
Legionella funct periodically
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 (line 1641). If 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 performed, there is a risk of scalding when
opening the taps.
Line no.
Operating line
1660
Circulating pump release
Time program 3 / HCP
DHW release
Time program 4 / DHW
1661
Circulating pump cycling
1663
Circulaton setpoint
User Manual
The settings in detail
CE1U2353en
22. November 2006

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