Baxi QAA73.110, Основная документация

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Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en
HVAC Products Error! Style not defined. 19.06.2002
The setting will ensure maximum limitation of the nominal d.h.w. temperature setpoint.
A d.h.w. setpoint maximum (TBWmax) of a BMU transmitted via OpenTherm is given
priority and replaces that of the controller (setting 130).
5.8 Setpoint of the legionella function
The setpoint of the legionella function is an adjustable temperature level to which the
d.h.w. temperature is raised when the legionella function is activated, aimed at killing
any legionella viruses that may have occurred.
1. Press the line selection buttons to select line 131.
2. Press the + / – buttons to adjust the required setpoint.
Setting range Unit Factory setting
8...95 °C 65
The setting changes the d.h.w. setpoint during the period of time the d.h.w. is heated
up as a result of the legionella function.
5.9 Dwelling time at legionella function setpoint
The setpoint of the legionella function (operating line 92) is maintained for at least the
period of time set here.
Setting range Unit Factory setting
0...360 min 0
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Function deactivated (no dwelling time)
The dwelling time starts as soon as the legionella setpoint is reached.
During the entire dwelling time, the temperature may not fall below the legionella
setpoint by more than the set LMU d.h.w. switching differential (standard setting 5K +
2K). The legionella function is terminated when this criterion is met.
5.10 Effect of legionella function on the circulating
pump
Flushing the circulation piping ensures that the legionella viruses will also be killed in
that part of the plant.
Setting range Unit Factory setting
No / yes Yes
No
The circulating pump does not run during the time of the legionella
function.
Yes The circulating pump runs during the time of the legionella function, even
if it would not be allowed to run based on control of the d.h.w. circulating
pump (setting 94).
If this function is deactivated, there is a risk that legionella viruses will return from the
circulation piping to the d.h.w. storage tank right after the storage tank has been
thermally desinfected.
Effect
Note
Description
Line 131
Effect
Description
Line 132
Effect
Description
Setting on operating
line 133
Effect
Î
Important