Cooling / Cooling 2 - Siemens Climatix Series Basis Document

Prerequisite
Enable cooling register
Parameter
Cooling /
Cooling 2
Configuration
Parameter
Cooling pump /
Cooling 2 pump
Clg pump alarm /
Cooling 2 pump alm
ClgDX alarm /
Cooling 2 Dx alarm
Cooling 2 control
Function
Stage control
Siemens
Building Technologies
5.10

Cooling / Cooling 2

5.10.1 General
Cooling / Cooling 2 enabled and preconfigured in configuration 1, configuration 2
and configuration I/Os.
Main Index > Configuration > Configuration 1
Range
– No
– Water
– DX 1Step
– DX 2Steps
– DX 3Steps
Main Index > Configuration > Configuration 2
Range
– No
– Yes
– Yes+Kick
– No
– Alarm
– Fdbk
– Both
– No
– Alarm
– Fdbk
– Both
– StandAlone
– InSequence
You can select between cold water register and direct expansion evaporator for
both cooling registers. The cold water register can be operated with or without
pump (with pump kick, alarm, feedback). The direct expansion evaporator register
can have up to 3 stages (binary control). It blocks cooling when outside air tem-
peratures are too low. The additional cooling register can be operated as an option
as a separate register with its own setpoint, or an additional register can be inte-
grated into the temperature control sequence.
The cooling register is forced off if:
– Night unoccupied (temperaturstart) heating
– Summer night cooling
The stages are controlled as follows for direct expansion evaporators:
DO1 DO2
Off 0 0
Stage1 1 0
Stage2 0 1
Stage3 1 1
Basis Document Siemens Climatix Control System
Standard application AHU
BDCX.100820.01GB
Functions
Function
– No (additional) cooling register.
– (additional) cold water register.
– (additional) 1 step direct expansion evaporator
aggregate.
– (additional) 2 step direct expansion evaporator
aggregate.
– (additional) 3 step direct expansion evaporator
aggregate.
Function
– No cooling register pump.
– Cooling register pump without pump kick.
– Cooling register pump with pump kick.
– Pump without alarm or feedback.
– Pump with alarm.
– Pump with feedback.
– Pump with alarm and feedback.
– Direct expansion evaporator without alarm or
feedback.
– Direct expansion evaporator with alarm.
– Direct expansion evaporator with feedback.
– Direct expansion evaporator with alarm and
feedback.
– Not integrated in sequence.
– Integrated in sequence.
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