Siemens Climatix Series - Page 80

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Siemens Standard application AHU CE1P3977en_02
Building Technologies Functions 01.02.2010
Main Index > Unit > Temp control > Cooling /
Main Index > Unit > Temp control > Cooling 2
Parameter Range Function
Controller 0...100 [%] Present value for cooling controller. Go to controller
settings page.
Output signal 0...100 [%] Present value for heating valve output. Go to page
with all analog output settings.
Extra Seq setpoint 0.0...99.0 [°C] For Cooling 2 only:
Setpoint for additional stand-alone cooling register.
Disable by outs tmp -64...64.0 [°C] Cooling is blocked when the outside air temperature
is below this value. The function is disabled when
no outside air temperature is configured or the sen-
sor fails.
Pump – On
– Off
Current pump status. Jump to pump for cooling reg-
ister page to parameterize the pump.
Direct expansion – Off
– Stage1
– Stage2
– Stage3
Present state of direct expansion evaporator. Jump
to DX cooling page to parameterize the direct ex-
pansion evaporator.
Max limitation fan --- Go to Cooling Fan Max Limitation page to param-
eterize output limitation for the direct expansion
evaporator.
5.10.2 Cooling pump
Pump for cooling register enabled:
Main Index > Configuration > Configuration 2 > Cooling Pump <> No
Main Index > Configuration > Configuration 2 > Cooling 2 pump <> No
The pump starts, when the following conditions are met:
• No fault is pending and the cooling valve is at least opened to 5 %.
or
• Pump kick is enabled.
The pump stops for the following cases:
• A fault occurs.
or
• The cooling valve is opened under 1 %.
Operating hours for the pump can be recorded and reset:
Main Index > Unit > Operating hours > Cooling Pump or Cooling 2 pump reset.
Main Index > Unit > Temp control > Cooling > Pump
Main Index > Unit > Temp control > Cooling 2 > Pump
Parameter Range Function
Command – On
– Off
Present value of the pump.
Go to page with digital output settings.
Fdbk – OK.
– No fdbk
Present state of pump feedback.
Go to page with digital input settings. For exam-
ple, you can set the time for jitter protection (De-
fault: 5 s).
–
Alarm – OK. Current pump alarm state.
Parameterization
Prerequisite
Function
Record operating hours.
Parameter
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 80