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If the equipment is to be stored for more than three months before installation, it should be unpacked and
connected to an AC input source to allow the batteries to be recharged. Refer to the installation instructions that
follow, and the installation drawings.
Figure 2-1: The Comet 100-150kVA on Pallet.
2.3 Storage
If the equipment is to be stored prior to installation, it should be stored in a cool, dry, well-ventilated location
that is protected against rain, splashing water, chemical agents, etc. The equipment should be covered with a
tarpaulin or plastic wrapper to protect it against dust, dirt, paint, or other foreign materials.
IMPORTANT Batteries should be stored no longer than three (3) months at approximately 25°C
(77° F) prior to recharging. Too high or too low a temperature will damage batteries.
Exceeding the recommended ambient storage temperature will reduce back-up time
and may adversely affect life.
2.4 Prerequisite to Installation
This section provides more information for a successful and efficient installation of the Comet 40-150kVA.
Installation of equipment must be handled by skilled technicians and electrician's familiar with the requirements
of high energy electrical equipment. The installation must comply with the requirements of the National
Electrical Code (NEC, ANSI/NFPA 70, latest issue) and with local codes and requirements as applicable. We
strongly recommend contracting MGE Customer Support Services for startup. Do not allow unqualified
personnel to handle or operate the equipment.
2.4.1 Environmental
The Comet 40-150kVA UPS is intended for use in an environment where control of temperature and humidity is
provided. The maximum operating and recommended environmental parameters are provided in the Specifications
section of this document.
The Comet UPS generates heat and exhausts air through the top portion of its enclosure. Heat loss data is
provided in Table 1-1.
Consult the installation drawings provided with your equipment.
Comet 40-150kVA
Installation2 — 2 86-160310-00 E00