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Siemens
Standard application AHU
CE1P3977en_02
Building Technologies
Configuration
01.02.2010
15.2 Configuration 2
Subfunctions for parts of plants occurs in Configuration 2.
Configuration 1 completed with reset.
– Configuration occurs setting-by-setting, i.e. you cannot bypass any lines.
– Configuration 2 must be completed with reset prior to starting Configuration IOs.
As required: Enter password for level 4:
Start page > Password Enter
then:
Main Index > Configuration > Configuration 2
Parameter
Range
Function
Night cooling
No
Yes
Free cooling.
Requirement: Night cooling can only be selected if one outside air
temperature sensor and one room or return air sensor is available.
The night kick function is enabled automatically if only one return air
sensor with saving property is available. If the return air sensor saves
values, the stored temperature is used to start night cooling.
Tmp start
Starts plant at night based on temperature difference.
Requirement: Function can only be selected if one room or return air
sensor is available.
The night kick function is enabled automatically if only one return air
sensor with saving property is available. If the return air sensor saves
values, the stored temperature is used to start.
No
Function not enabled.
Htg
Function enabled for heating only.
Clg
Function enabled for cooling only.
Htg+Clg
Function for enabled heating and cooling.
Boost
Plant boost with heating and cooling to a separate setpoint.
Requirement: Function can only be selected if one room or return air
sensor is available.
No
Function not enabled.
Htg
Function enabled for heating only.
Clg
Function enabled for cooling only.
Htg+Clg
Function for enabled heating and cooling.
Tmp start/OSSTP
blk
Block dampers or exhaust air fan when the plant is started via boost
or temperature differential.
Note: The function is implemented for energy considerations.
Caution: A bypass damper must exist and be open when the
function is enabled. Otherwise, it may damage the plant.
None
No block.
Damper
Dampers remain closed.
Fan
Dampers remain closed and only the supply air fan is started.
Damper fdbk
No
No damper feedback.
One
Feedback for supply air dampers (or a common feedback for both
dampers). Digital input for feedback.
Two
Separate feedback for supply and exhaust air damper. Two digital in-
puts for feedback.
Task
Prerequisite
Notes
Start
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 159