Vertiv CoolChip CDU 600 - Page 34

ID Title Description Default Range Unit
All CDUs fill when any one
CDU activates fill pump
P108 Delta Load Drop in Load 0 0 to 500 kW
P109 Delta Load Period Drop in Load Period 60 0 to 90 secs
Table 4.18 Configuration—Filling (continued)
ID Title Description Default Range Unit
P201 Control Type
Pump speed flow or DP
controlled
Flow Flow or DP —
P202 Flow Setpoint
Set the required secondary
flow rate
100 50 to 500 l/m
P203
Differential Pressure
Setpoint
Set the required secondary DP 0.3 0.1 to 4.0 bar
P204 Low Flow %
Low flow alarm threshold (% of
flow setpoint)
90 10 to 95 %
P205 Low DP %
Low DP alarm threshold (% of
DP setpoint)
90 10 to 95 %
P206 Low Flow/DP Delay
Time delay prior to low
flow/DP alarm
100 1 to 300 secs
P207 Minimum Pump Speed Minimum pump speed 15 10 to 70 %
P208 Twin Pump Control
Set to twin or single pump
mode
No No, Yes —
P209 Maximum Pump Speed
Set maximum pump running
speed
100 25 to 100 %
P210 Pump Changeover Delay
Pump changeover period
(change from P1 to P2 or P2 to
P1)
250 50 to 500 msec
P211 Over Pressure Setpoint
Maximum system pressure,
prior to alarm (dependant on
PRV rating)
PRV setting less 10% 2.0 to 7.0 bar
P212 Over Pressure Action
Alarm only or alarm +
shutdown
Alarm
Alarm or Alarm +
S/D
—
P213 Startup Speed
Initial pump start fixed speed
(0 = Auto)
0 0 to 100 %
P214 Startup Period
Initial start speed hold period,
prior control loop taking over
0 0 to 100 secs
P215 Loop Refresh Period
Scan period for pump speed
control loop
10 1 to 120 secs
P216 Maximum Control Pressure
Maximum pump speed control
loop pressure
4.0 1.0 to 8.0 bar
P217 Failover Speed Reduction
Reduction in pump speed
when moving to twin pump
0 0 to 50 %
Table 4.19 Configuration—Pump Control
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Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide