80 / 244
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
