Siemens Climatix Series User Manual

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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

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