Rittal LCP Rack CW - Valve

Rittal Liquid Cooling Package 71
8 Operation
8
The following parameters are also displayed for the wa-
ter inlet temperature:
"Temperature" level > "Coolant Return"
The settings for the water return temperature are per-
formed at this level.
The representations fully match those for the "Coolant
Supply" level.
"Coolant Flow" level
The settings for the water flow are performed at this lev-
el:
The following parameters are also displayed for the wa-
ter flow rate:
8.5.5 Valve
The settings for the control valve are performed at this
level:
"Control Valve" sub-level
The settings for the control valve are performed at this
sublevel.
The following parameters are also displayed for the con-
trol valve:
Parameter Explanation
DescName (Detailed) description of the water inlet
temperature.
SetPtHigh-
Alarm
Top limit of the water inlet temperature; an
alarm message is emitted if this is exceed-
ed.
SetPtHigh-
Warning
Top limit of the water inlet temperature; a
warning message is emitted if this is ex-
ceeded.
SetPtLow-
Warning
Bottom limit of the water inlet temperature;
a warning message is emitted if this is un-
dercut.
SetPtLow-
Alarm
Bottom limit of the water inlet temperature;
an alarm message is emitted if this is un-
dercut.
Hysterese Required percentage deviation for a status
change if the temperature limit of the water
is undercut or exceeded (see section 19
"Glossary").
Tab. 34: Settings in the "Coolant Supply" level
Parameter Explanation
Value Current water inlet temperature.
Status Current status regarding the water inlet
temperature.
"OK": No limit has been exceeded or un-
dercut.
"Alarm": The temperature sensor has
failed.
Too Low: "SetPtLowAlarm" limit undercut.
Low Warn: "SetPtLowWarning" limit un-
dercut.
High Warn: "SetPtHighWarning" limit ex-
ceeded.
Too High: "SetPtHighAlarm" limit exceed-
ed.
"n.a.": The sensors for the water inlet and
water return temperature are deactivated
in the configuration (see section7.2.4
"LCP configuration").
Tab. 35: Display at the "Coolant Supply" level
Parameter Explanation
DescName (Detailed) description of the water flow rate.
SetPtHigh-
Alarm
Top limit of the water flow rate; an alarm
message is emitted if this is exceeded.
SetPtLow-
Alarm
Bottom limit of the water flow rate; an alarm
message is emitted if this is undercut.
Tab. 36: Settings at the "Coolant Flow" level
Parameter Explanation
Value Current flow rate of water.
Status Current status regarding the water flow
rate.
"Error": The control valve is open, but only
a minimum flow rate is measured.
"OK": The flowmeter is correctly connected
and operational.
"Alarm": The flowmeter is not connected or
not detected.
Too Low: "SetLowAlarm" limit undercut.
Too High: "SetHighWarning" limit exceed-
ed.
"n.a.": The flowmeter is deactivated in the
configuration (see section7.2.4 "LCP con-
figuration").
Tab. 37: Displays at the "Coolant Flow" level
Parameter Explanation
DescName (Detailed) description of the control valve.
Tab. 38: Settings at the "Control Valve" sub-level
Parameter Explanation
Value Position of the control valve in %:
0% = valve closed,
100% = valve completely open.
Tab. 39: Displays at the "Control Valve" sub-level