Siemens Albatros2 AVS37 User Manual Page 125

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Siemens Schweiz AG User Manual CE1U2354en
HVAC Products Configuration 23. August 2007
Dewpoint monitor
The dewpoint monitor detects the formation of condensate. If the dewpoint monitor
responds to condensation, the cooling switches off immediately.
The cooling is enabled when the monitor is no longer signalling condensation and when
a definable "locking time" (operating line 946) has expired.
Flow setpoint increase, hygrostat
If the hygrostat responds, the flow setpoint is increased by the fixed value defined in
"Flow setpt increase hygro" (operating line 947). As soon as the hygrostat reverts to
normal, the flow setpoint returns to the "normal value".
Refrigeration demand
The refrigeration demand is transmitted to the refrigeration generating plant via a
contact.
The setpoint must be set via operating line 5952.
Heating demand 10V
Heat generation receives heat requests in the form of voltage signals (DC 0...10V).
The linear characteristic curve is defined via two fixed points (voltage value 1 / function
value 1 and voltage value 2 / function value 2).
Refrig demand 10V
Refrigeration generation receives the refrigeration demand in the form of a voltage
signal (DC 0...10 V).
The linear characteristic curve is defined via two fixed points (voltage value 1 / function
value 1 and voltage value 2 / function value 2).
Pressure measurement 10V
The voltage signal at input H… is converted to a pressure value in a linear manner.
The linear characteristic curve is defined via two fixed points (voltage value 1 / function
value 1 and voltage value 2 / function value 2).
Relative room humidity 10V
The voltage signal present at input Hx is converted into a linearized relative humidity
value. This is used for the dewpoint calculation and dewpoint protection functions of the
cooling circuit and for control of the dehumidifier.
The linear characteristic curve is defined via two fixed points (voltage value 1 / function
value 1 and voltage value 2 / function value 2).
Room temperature 10V
The voltage signal present at input Hx is converted into a linearized room temperature
value. This, in conjunction with the indoor relative humidity, is used to calculate the
dewpoint temperature in the cooling circuit.
If there is no room unit with a room sensor (BSB) connected for heating/cooling circuit 1,
the room temperature measured at Hx is also used for room heating/cooling 1 (variant
with compensation and room influence).
The linear characteristic curve is defined via two fixed points (voltage value 1 / function
value 1 and voltage value 2 / function value 2).
N/C
The contact is normally closed and must be opened to activate the selected function.
N/O
The contact is normally open and must be closed to activate the selected function.
Contact type, input H...
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