Siemens Climatix Series User Manual

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Siemens Standard application AHU CE1P3977en_02
Building Technologies Functions 01.02.2010
Parameter Range Function
Act sply dehum stpt 0.0...100.0 [%rH] oder
[g/kg]
Actual calculated supply air humidification setpoint for a
cascade control (%rH or g/kg).
Act sply hum stpt 0.0...100.0 [%rH] oder
[g/kg]
Actual calculated supply air humidification setpoint for a
cascade control (%rH or g/kg).
Setpoint 0…100 [%rH] Base setpoint. Only available when Hum stpt selection =
+/-Half degree Celsius.
Dead zone 0…100 [%rH] Comfort dead zone. Only available when Hum stpt selec-
tion = Dehum -degrees Celsius or Hum+degrees Celsius
or +/-half degree Celsius.
Dehum stpt 0…100 [%rH] Setpoint for dehumidification. Only available when Hum
stpt selection = Hum/dehum or dehum/-degree Celsius.
Hum stpt 0…100 [%rH] Setpoint for humidification. Only available when Hum stpt
selection = Hum/dehum or Hum/-degree Celsius.
Setpoint 0…100 [g/kg] Base setpoint. Only available when Hum stpt selection =
+/-Half degree Celsius.
Dead zone 0…100 [g/kg] Comfort dead zone. Only available when Hum stpt selec-
tion = Dehum -degrees Celsius or Hum+degrees Celsius
or +/-half degree Celsius.
Dehum stpt 0…100 [g/kg] Setpoint for dehumidification. Only available when Hum
stpt selection = Hum/dehum or dehum/-degree Celsius.
Hum stpt 0…100 [g/kg] Setpoint for humidification. Only available when Hum stpt
selection = Hum/dehum or Hum/-degree Celsius.
Sply hum min stpt 0…100 [%rH] Lowest allowable supply air humidity for a cascade con-
trol.
Sply hum max stpt 0…100 [g/kg] Highest allowable supply air humidity for a cascade con-
trol.
Sply hum max stpt 0…100 [%rH] oder [g/kg] Highest allowable supply air humidity for pure cascade
control for room humidity control with supplemental avail-
able supply air humidity sensor. Limited control of the
humidity controller occurs for supply air humidity > Sup-
ply hum min.
Sply hum dev alarm --- Go to parameter page for supply air humidity monitoring.
Room hum dev alarm --- Go to parameter page for room humidity monitoring.
5.11.3 Humidity deviation alarms
Supply air humidity deviation alarm:
• A supply air humidity sensor must be available:
Main Index > Configuration > Configuration 1 > Supply hum sensor = Yes.
• Deviation alarm must be enabled:
Main Index > Configuration > Configuration 2 > Deviation alarm hum <> No.
Room air humidity deviation alarm:
• A room air humidity sensor must be available:
Main Index > Configuration > Configuration 1 > Room hum Sensor = Yes.
Setpoint/actual value monitoring of humidity: An alarm is triggered for the following
cases when the humidity deviates from the setpoint during a certain period:
– Actual value < Min limit.
– Actual value > Setpoint + maximum.
– Actual value < Setpoint – maximum.
– When setpoint – maximum < Min limit, min limit applies as the comparison value.
Prerequisite
Function
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 86

Siemens Climatix Series Specifications

General

Application	HVAC control
Communication Protocols	BACnet, Modbus, KNX
Inputs	Analog and digital inputs
Outputs	Analog and digital outputs
User Interface	web interface
Power Supply	24 V AC
Protection Class	IP20
Mounting	DIN rail mounting