ID Title Description Default Range Unit
P801
Secondary T2 Temperature
Differential
Alarm threshold T2a/b/c
temperature differential
1 0.1 to 10 °C
P802 Secondary T2 Period
Time delay before T2a/b/c
differential alarm
30 0 to 120 secs
P803
Secondary PS1 Pressure
Differential
Alarm threshold PS1a-PS1b
pressure differential
0.2 0.1 to 1.0 bar
P804 Secondary PS1 Period
Time delay before PS1a-PS1b
differential alarm
30 0 to 120 l/m
P805
Secondary Flow Sensor Full
Scale
Adjust full scale (20mA)
reading when external
external flow meter fitted.
646 100 to 1000 l/m
P809 PS1a Scaling Set measurement range.
1
2 0 to 4 —
P810 PS1b Scaling Set measurement range.
1
2 0 to 4 —
P811 PS2 Scaling Set measurement range.
1
2 0 to 4 —
P812 PS3 Scaling Set measurement range.
1
2 0 to 4 —
P813 PS4 Scaling Set measurement range.
1
2 0 to 4 —
P814 PS5a Scaling Set measurement range.
1
2 0 to 4 —
P815 PS5b Scaling Set measurement range.
1
2 0 to 4 —
1
0 = 0 to 30 bar, 1 = 0 to 15bar, 2 = -1 to 8 bar, 3 = 0 to 6.89bar, 4 = -0.69 to +6.89 bar.
Table 4.25 Configuration—Sensors
ID Title Description Default Range Unit
P901 Manual Override Period
Time delay before controls
revert to Auto mode
15 0 to 120 mins
P902 Alarm Delay Alarm suppression on startup 20 1 to 120 mins
P903 Alarm Relays
Extended alarm relay
operation mode
N/O
N/O
N/C
—
P904 Post Power Failure Options
Action to be taken following a
power failure once power is
restored
Run
Run
Standby
—
P905 Data Logging Interval
Interval between data being
logged to SD card (0 = 60s, 1 =
30s, 2 = 10s, 3 = 5s)
0 0, 1, 2, 3, —
P906 Remote Start/Stop Options
Closed or Open circuit to run
unit
N/O
N/O
N/C
—
P907 Number of Alarm Outputs
Number of relays used for
extended alarms
2 1 or 2 —
P908 Display Lockout Lockout following failed logins No
No
Yes
—
Table 4.26 Configuration—Miscellaneous
4 Operation Proprietary and Confidential ©2025 Vertiv Group Corp. 33
Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide
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