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Siemens Building Technologies
Fan coil controller for wall mounting ACR12
CE1N3573E
HVAC Products
17.08.2001
W
H
Q
K
X
p
X
p
Q
H
W
K
35
74D
02
YK
YH
Y [%]
80
50
X
dz
100
4-pipe systems, for controller types ACR12.340/ALG and ACR12.341/ALG
W
H
Q
K
X
p
E
X
p
Q
H
W
K
3574D
10
YK
YHE
Y [%]
80
50
X
dz
100
W
H
Q
H
35
74
D
09
YHE
YH
X
p
E
X
p
Y [%]
100
Controller types ACR12.320/ALG / ACR12.340/ALG and ACR12.321/ALG /
ACR12.341/ALG
Q
H
Heating load
W
H
Heating setpoint
Q
K
Cooling load
W
K
Cooling setpoint
X
p
P-band
X
PE
P-band electric heater
Y
Positioning variable
YH
Heating output with ACR12.32x/ALG + ACR12.34x/ALG c/o activated
YHE
Electric heater output with ACR12.32x/ALG
YK
Cooling output with ACR12.32x/ALG + ACR12.34x/ALG, c/o deactivated
Control sequence
4-pipe fan coil
Control sequence
2-pipe fan coil
with
electric heater
C/O (changeover)
cooling
Control sequence
2-pipe fan coil
with
electric heater
C/O (changeover)
heating