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Siemens
Standard application AHU
CE1P3977en_02
Building Technologies
Configuration
01.02.2010
Parameter
Range
Explanation
RtSplyC Su
Return / supply air cascade control during the summer; supply air
temperature control only during the winter.
Room
Room control only.
Exhaust
Return air temperature control only.
Hrec damper
Select heat recovery control with mixed air dampers.
No
No mixed air damper.
Normal
Mixed air damper with output signal 100% for complete recircula-
tion.
Inverse.
Mixed air damper with output signal 0% for complete recirculation.
Heat recovery
Select heat recovery control with wheel, plate or hot water heat
exchanger.
No
No heat recovery.
Wheel
Wheel heat exchanger. An analog output to control heat wheel.
PlateExch
Plate heat exchanger. An analog output to control bypass damper.
Water
Water heat exchanger. An analog output to control the valve.
Heating
No
No heating circuit.
Yes
Heating register without preheating the register.
Analog output for heating valve.
Yes+PreHeat
Heating register with preheating the register.
Analog output for heating valve.
Electrical heating
Electric heating register with control type.
No
No electric heating register available.
Analog
Electric heating register with control via an analog output.
1Step
1-step electric heating register with control via one analog and one
digital output.
2Steps
2-step electric heating register with control via one analog and two
digital outputs.
3Steps
3-step electric heating register with binary encoded control via one
analog and two digital outputs.
Cooling
Select cooling register with type.
No
No cooling register.
Water
An analog output for the water register valve.
DX 1Step
One analog and one digital output for 1-step control of a direct ex-
pansion evaporator.
DX 2Steps
One analog and two digital outputs for 2-step control of a direct
expansion evaporator.
DX 3Steps
One analog and two digital outputs (binary) for 3-step control of a
direct expansion evaporator.
Humidity control
Humidification and dehumidification.
No
No humidification and dehumidification.
Hum
One analog and one digital output for humidifier. Only possible if
the room or supply air humidity sensor is enabled.
DeHum
Dehumidification controller. Only possible when cooling enabled.
Hum+DeHum
Humidification and dehumidification.
Heating 2
No
No additional heating register.
Yes
Additional heating register without preheating the register.
Analog output for heating valve.
Yes+PreHeat
Additional heating register with preheating the register.
Analog output for heating valve.
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 157