Service Procedures: Unscheduled Maintenance
30 InfraStruXure InRow RC
Humidity:
Date:
Value:
Rack Set point:
Gain:
Inte
ral:
Derivative:
alue:
1. Number of units in the group?
6. Air Filter Service Alarm enabled
5. Does the unit appear like its being maintained?
List any of the customers concerns below:
4. Return Air threshold
5. Air Filter Service threshold
Unit Alarms:
Alarm Description:
Record Redundant Group Configuration:
2. What is the selected Fan Speed/RC Delta set at? (This setting is used for HACS or
RACS control configuration)
3. What is the Supply Air Set-point?(This setting is used for All three Control configurations
the setting should be set lower than the Rack inlet set point for In-Row Configuration or a
few degrees lower than the desired inlet temp for the racks in HACS or RACS control
configuration)
4. What is the setting for cooling gain (Proportional Band)? See document (990-2681) for
information on settings. Most applications don't require this setting to be adjusted.
Comments:
1. Record the Visual observations present upon arriving on site:
Rack Delta:
Supply Air Set-
Point:
Record Threshold Settings: Comments:
2. All the units in the group are working off the same common Hot Aisle ?
List the alarm log below.
Record the following Configurations:
1. What is the set point defined for temperature control to the rack? (This setting is used
for In-Row control configuration)
6. What is the setting for the Derivative? See document (990-2681) for information on
settings. Most applications don't require this setting to be adjusted.
5.
What is the setting for the Reset (Integral)? See document (990-2681) for information on
settings. Most applications don't require this setting to be adjusted.
Document all problems found with the IR-RC and the source of the failure, if known:
1. Inlet Air threshold
Problem:
2.
Inlet Fluid threshold
3. Supply Air threshold
Front
Access:
Yes/No
Corrective Action (Preliminary):
Environment:
1.
Is the Cooling solution environment suitable for operation?
Comments:
4. Is there sufficient service access? (Minimum front access is 36")?
2. Record environment Temperature and Humidity. Temp:
3. Is there signs of Damage to the system?
