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Siemens
Central apartment unit QAX910
CE1N2707en
Building Technologies
06.01.2009
M1
DHW pump
M2 - M3 Room group pump
T
Room unit and / or
Room temperature sensor
K
Electric immersion heater
Y1
Radiator control actuator SSA955
Y2
Heating circuit valve (2-position)
B1 DHW
sensor
B2 - B3 Flow temperature sensor
U1
Mixing valve for radiator, DC 0...10 V
U2
Mixing valve for floor heating, DC 0…10 V
ZUL
ABL
X1
FOL
AUL
RRV934
Q1
Q2
Q3
I II III
Q1 - Q3 3-stage step selector of ventilation plant
X1
Indoor air quality sensor, DC 0...10 V
X2
Humidity sensor, DC 0...10 V
FOL Exhaust
air
AUL Outside
air
ZUL Supply
air
ABL Extract
air
2 room groups each with
flow temperature precon-
trol and DHW heating
Integration of a
ventilation plant