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
Connection terminal on module
QX21 QX22 QX23 BX21 BX22 H2
Multifunctional
* * * * * *
Cooling circuit 1
Y23 Y24 Q24 B16 * *
Heating circuit 2
Y5 Y6 Q6 B12 * *
Solar DHW
* * Q5 B6 B31 *
Primary controller / system
pump
Y19 Y20 Q14 B15 * *
DHW primary controller
Y31 Y32 Q3 B35 * *
Instantaneous DHW heater
Y33 Y34 Q34 B38 B39 F
S
* Freely selectable in Q…/ BX...
FS = Flow Switch
Multifunctional
Functions that can be assigned to the multifunctional inputs / outputs appear on
operating lines 6030, 6031, 6032 and 6040, 6041.
Cooling circuit 1
For this application, the respective settings of menu “Cooling circuit 1” can be adapted.
Heating circuit 2
For this application, the respective settings of menu “Heating circuit 2” can be adapted.
Solar DHW
For this application, the respective settings of menu “Solar” can be adapted.
Primary controller / system pump
For this application, the respective settings of menu “Primary controller / system pump”
can be adapted.
DHW primary controller
For this application, the respective settings of menu “DHW storage tank” can be
adapted.
Instantaneous DHW heater
For this application, the respective settings of menu “Instantaneous DHW heater” can
be adapted.
Frost protection on the extension module
Frost protection for the heating circuit on the extension module operates the same way
as frost protection for the heating circuit connected to the controller (see page 87).
Frost protection for the plant (see page 161) also acts on the heating circuit of the
extension module.
If the frost protection function on the extension module responds, its pump (Q24) is
activated and the mixing valve (Y23 / Y24) maintains the frost protection setpoint (10
°C). But the cooling circuit does not send a request to the heat source.
For monitoring frost protection on the extension module, sensor B16 is used. When
there is no flow temperature sensor installed, the frost protection function for the
heating circuit is performed with the common flow temperature (B21).
Frost protection for the plant (see page 161) also acts on the cooling circuit of the
extension module. The function can be activated / deactivated.
Heating circuit
Cooling circuit

Siemens AVS75.390 Specifications

General

Brand	Siemens
Model	AVS75.390
Category	Controller
Language	English