16
resulting in a degraded cooling effect.
- Check the operation conditions (operating time, system and facility ON/OFF control methods,
extent of disaster handling facilities, etc.)
“Table 1.3.1-2” lists the specific check items and examples of failures that occurred in the past.
Table 1.3.1-2 Check items and examples of past problems
Environmental
condition
Check item
Example of failure
Dust
There should be no electric conductive
matter such as concrete particles or
iron dust under the device floor.
There was a large amount of iron dust
under the device floor, some of which
penetrated the unit and triggered a
failure. Numeral parts had to be replaced.
There should be no foreign matter that
may clog the filter.
A plastic bag on the floor was drawn
in and ended up clogging the filter.
Parts were damaged due to the
resulting rise in temperature.
Temperature
and humidity
The temperature, relative humidity,
and maximum wet-bulb temperature
gradient should comply with the
specifications.
The power could not be turned on
because of high humidity levels in
a new building.
The room temperature should be evenly
maintained throughout the room.
A temperature alarm was triggered
because heat was not dissipated,
because of the poor layout of the air
conditioning for the units.
A sufficient amount of cool air should
be provided through the floor outlets.
-
There should be sufficient clearance
under the device floor.
The temperature rose because cables
under the device floor were blocking
the air conditioning inlets.
Air conditioner
The air velocity should be even.
The air velocity was unusually high
because of installation next to an air
conditioner, which generated an air
wall inside the unit. This caused
the temperature to rise, which in turn
triggered an alarm.
Humidifier
Only pure water should be used for
ultrasonic humidifiers.
There was a buildup of a white residue
because of the use of tap water, which
resulted in a failure caused by leakage.
SET0103020
1.3.2 Input power
Confirm the allowable range of input power supplied to the Base Unit. (See “Table 1.3.2”.)
Table 1.3.2 Input power requirements
Input power voltage
Frequency
200 to 240VAC ±10% single phase
50/60Hz +2%/-4%
Summary of Contents for C880 M5
Page 94: ...94 Appendix ...
Page 97: ...97 Figure B 1 Distribution panel breaker characteristics ...
Page 102: ...102 Figure D 3 3 When 1 AC Source Figure D 3 4 When 1 AC Source ...
Page 105: ...105 Figure E 2 1 2 ...
Page 108: ...108 Figure E 3 1 2 ...
Page 112: ...112 Figure E 5 1 2 ...
Page 119: ...119 Figure E 10 2 ...
Page 135: ...135 Figure F 7 1 5 ...
Page 137: ...137 Figure F 8 1 2 Figure F 8 1 3 ...
Page 142: ...142 Figure F 9 3 3 Figure F 9 3 4 ...
Page 144: ...144 Figure F 10 1 3 ...
Page 152: ...152 Figure F 13 1 1 Module MC 0JXEL1 Figure F 13 1 2 Module MC 0JCEK1 ...
Page 156: ...156 APP0614000 F 14 Installing M 2 Flash Device See Figure F 14 Figure F 14 ...
Page 163: ...163 APP0617000 F 17 Installing TPM See Figure F 17 Figure F 17 ...
Page 165: ...165 Figure G 1 2 ...
Page 171: ...171 APP0902000 I 2 Fibre Channel card Figure I 2 ...
Page 172: ...172 APP0903000 I 3 SAS card SAS RAID controller card Figure I 3 ...
Page 173: ...173 APP0904000 I 4 CNA card Figure I 4 ...
Page 174: ...174 APP0905000 I 5 Infiniband HCA card Figure I 5 ...
