Siemens Albatros2 AVS37 User Manual Page 88

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Siemens Schweiz AG User Manual CE1U2354en
HVAC Products Cooling circuit 23. August 2007
6.7 Cooling circuit
For the operation of a cooling circuit, the cooling function must be enabled (operating
line 901) and released in accordance with a time program (operating line 907). The
system automatically operates in cooling mode when the room temperature rises above
the Comfort cooling setpoint (operating line 902).
Cooling mode is interrupted if there is a heating demand from heating/cooling circuit 1,
or if a heating demand signal is received from the DHW circuit or another heating circuit.
Operating mode
Line no. Operating line
901 Operating mode
Off ¦ Automatic
This line is used to set the operating mode for cooling.
This setting is the same as the selection of cooling mode with the cooling button on a
room unit.
Off
The cooling function is switched off.
Automatic
Automatic mode controlled by the time program, presence button or holiday program,
subject to the enable conditions set via operating line 907.
If the cooling enable signal is set to 24h/day via operating line 907, then the cooling
button can be used as an on/off button.
Setpoints
Line no. Operating line
902 Comfort cooling setpoint
Room setpoint in cooling mode.
Summer compensation, operating line 920 can raise the setpoint as a function of the
outside temperature.
Release
Line no. Operating line
907 Release
24h/day ¦ Time programs HCs ¦ Time program 5
The parameter "Release" determines the time program in accordance with which
cooling is enabled.
24 h/day
Cooling is released continuously (24 hours a day)
Time programs, HCs
Cooling is released in accordance with the heating circuit time program
Time program 5
Cooling is released in accordance with time program 5.
RVS43.. only
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