Siemens AVS75.390 User Manual

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Siemens Switzerland Ltd
User manual RVS61.843 CE1U2355en_02
HVAC Products 6 The settings in detail 23. November 2007
If the DHW temperature is lower than the current setpoint minus the switching
differential set here, DHW charging is started.
DHW charging is completed when the temperature reaches the current setpoint.
When DHW heating is released for the first time in a 24-hour period, forced charging is
initiated. DHW charging is also started when the DHW temperature lies within the
switching differential, provided it does not lie less than K below the setpoint.
Line no. Operating line
5030 Charging time limitation
During DHW charging, space heating may obtain no or too little energy, depending on
the selected charging priority (1630) and the type of hydraulic circuit. For this reason, it
is often practical to set a time limit to DHW charging.
- - -
Charging time limitation is deactivated. The DHW is heated up to the nominal setpoint,
even if space heating cannot draw sufficient heat for a certain period of time.
10 – 600
DHW charging is stopped after the set period of time in minutes and then locked for the
same time before it is resumed. During this period of time, the heat produced is made
available for space heating. This cycle is repeated until the nominal DHW setpoint is
reached.
When space heating is off (summer operation, Eco function, etc.), DHW charging is not
stopped, independent of the selected setting.
Overtemperature protection
Line no. Operating line
5050 Charging temp max
The solar collector charges the DHW storage tank until the set “Charging temp max“ is
reached.
The protective collector overtemperature function can reactivate the collector pump
until the maximum storage tank temperature is reached.
Recooling
Line no. Operating line
5055 Recooling temp
5056 Recooling heat gen/HC
Off ¦ On
5057 Recooling collector
Off ¦ Summer ¦ Always
An activated recooling function remains in operation until the set recooling temperature
in the DHW storage tank is reached.
Excess heat can be drawn off either by space heating or the DHW storage tank. Heat
consumption via a heating circuit can be set separately for every heating circuit (menu
"Heating circuit X…”).
When the collector is cold, surplus energy can be emitted to the environment via the
collector’s surfaces
Switching diff
Charging time limitation
Charging time limitation
Recooling temp
Recooling heat gen/HC
Recooling collector

Siemens AVS75.390 Specifications

General

Brand	Siemens
Model	AVS75.390
Category	Controller
Language	English