Siemens POL638 Series

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Siemens Standard application AHU CE1P3977en_02
Building Technologies Configuration 01.02.2010
Parameter Range Function
Fan comp room
tmp
No
Yes
Room-temperature dependent fan compensation.
Requirement: A room or return air sensor is enabled.
Fan comp air
quality
No
Yes
Air quality-dependent fan compensation. Analog input for the sensor is
enabled.
Fan cmp humidity No
Yes
Room humidity-dependent fan compensation.
Requirement: Room humidity sensor is enabled.
Fan comp outs tmp No
Yes
Outside air-temperature dependent fan compensation.
Requirement: Outside air sensor is enabled.
Fan htg / clg The fan is further used as a heating or cooling sequence.
No No sequential impact on the fan.
Htg Only impacts fan during the heating sequence.
Clg Only impacts fan during the cooling sequence.
Htg+Clg Impact on fan in both sequences.
Tmp stpt selection Predefined variants for temperature setpoints:
Htg+Dz heating setpoint and dead zone are entered.
Cooling setpoint = Heating setpoint + dead zone.
Htg/Clg Heating and cooling setpoint is entered directly.
+/- HalfDz Base setpoint and dead zone is entered.
Heating setpoint = Base setpoint – half dead zone.
Cooling setpoint = Base setpoint + half dead zone.
Clg-Dz Cooling setpoint and dead zone is entered.
Heating setpoint = Cooling setpoint – dead zone.
Ext stpt function Sets whether the external setpoint acts as setpoint compensation or in
absolute terms.
Value corresponds to the comfort setpoint dependent on the switch
Tmp setpoint selection.
If the switch Tmp setpoint selection is on HtgClgSpv, the value of the
setpoint compensation corresponds to the heating setpoint and the
cooling setpoint is calculated from the difference between the entered
setpoints for heating and cooling.
Relative Setpoint compensation.
Absolute Absolute
Room tmp mix Selection of room temperature used for control if more than one ex-
ists.
Average Average.
Minimum Lowest temperature.
Maximum. Highest temperature.
RoomSnsr1 Room sensor 1.
RoomSnsr2 Room sensor 2.
RoomUnit1 Room unit 1 (not yet implemented).
RoomUnit2 Room unit 2 (not yet implemented).
Room draught limit No
Yes
Limitation to maximum/minimum supply air temperature dependent on
room temperature.
Requirements: One cascade control is enabled.
Function minimizes draughts caused by too large a difference be-
tween supply air and room temperature.
Sequence fan clg Sets sequence of fan sequence and cooling sequence.
Requirement: Fan htg / clg is enabled.
Fan-Clg Fan sequence before cooling sequence.
Clg-Fan Cooling sequence before fan sequence.
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 161