System Installation Considerations
4200-106
6-1
Revision 3
6.
System Installation Considerations
This section describes items that should be considered before installing the UXIM system.
6.1
Disconnect Device
The Pulsed Load Lead harness which plugs into the Resistance Steps connector is the primary disconnect
device. Unplug this connector to disconnect power from the UXIM.
6.2
Equipment Location
Consider the placement of the equipment in the event service is required. For example, access to the
rear of the equipment or visual access to the status lights may be needed. The equipment is convection
cooled and no cooling fans are used. To maintain proper operating temperature, the equipment must
not be enclosed in another cabinet without proper ventilation.
6.3
Rack Mounting
If installed in a closed or multi-unit rack assembly, the operating ambient temperature of the rack
environment may be greater than room ambient. Therefore consideration should be given to installing
the equipment in an environment compatible with the maximum ambient temperature specified in the
Product Description Guide. Installation of the equipment in a rack should be such that the amount of air
flow required for safe operation of the equipment is not compromised. Mounting of the equipment in
the rack should be such that a hazardous condition is not achieved due to uneven mechanical loading.
6.4
Mounting Options
The equipment can accommodate two types of mounting:
19” rack mount or
flush mount. Standard
mounting is 19” rack mounting.
If the flush mount option is used, the optional flush mounting brackets
will need to be installed.
6.5
Wire Length
All harnesses lengths are standard 25
’
or 50’
length and in most cases, should not require additional
lengths. Distances between the battery, battery charger and the battery monitoring equipment should
be considered. If longer harness lengths are required, harnesses are available in a maximum of
50’
lengths. The resistance load test-wiring limits this length to the maximum distance the UXIM can be
mounted from the battery string.
This manual describes all harnesses at the standard 25’ or 50’
length.
6.6
Battery String Isolation
Isolate the battery string prior to installing the system.
Important!
Never attempt installation on a battery string that is in service and not fully isolated from
the DC bus and load circuits.
6.7
Cell Number 1 Identification
When referring to any material in this installation guide and reference is made to an actual cell number,
always consider Cell 1 as the most positive end of the battery with respect to the battery charger. As the
cells increment toward the negative end of the string, increment the cell numbers as well.
