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3.3 How to install the battery pack (backup power)
Introduction
This section guides you through the installation or replacement of a battery pack on the
MTS4-outdoor enclosure.
The MTS4-outdoor enclosure is designed to accommodate two sets of 48 V DC backup
power battery packs. One pack is stored in the bottom of the cabinet. When installed as
described below the solution has been tested and approved for lorry transport.
The second pack is to be installed on site on the shelf right above the first battery pack.
Please note that this pack is not secured for transport. Interconnections and degassing
is similar to the lower pack.
IMPORTANT:
They are all VRLA types with approved ventilation kit. The ventilation kit
shall be installed in accordance with the description below:
WARNING
: Careful battery handling is described in the separately enclosed
Installation, Operations and Maintenance Instructions for the battery pack.
When to replace it
It is necessary to replace the battery pack if:
required power backup time is not sufficient
cell voltage is below manufactures recommendations after charging period
recommended operational lifetime is exceeded
any physical damage is found on the battery pack
Before you start
Before you start to replace the batteries, make sure that you have the following ready:
A replacement pack of batteries including degassing kit with hose, T-connectors
etc., type label and manual
The installation, Operations and Maintenance Instructions coming with the batteries
READ THIS and follow the instructions
A 10 mm and 13 mm spanner (insulated)
Lifting aid for handling the battery cells. Each cell can have a weight of up to 57 kg
Illustration:
This illustrates the battery pack located at the bottom of the left compartment:
Continued overleaf
