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indicated below. This special warranty shall extend the one year period of limitations contained in
the General Conditions. The special warranty shall be countersigned by the Installer and the
manufacturer.
1. UPS Module: The UPS shall be covered by a full parts and labor warranty from the
manufacturer for a period of 12 months from date of installation or acceptance by the Owner or
18 months from date of shipment from the manufacturer, whichever occurs first.
2. Battery: The battery manufacturer’s warranty shall be passed through to the final Owner and
shall have a minimum period of one year.
C. Additional Owner Rights: The warranty shall not deprive the Owner of other rights the Owner
may have under other provisions of the Contract Documents and shall be in addition to and run
concurrent with other warranties made by the Contractor under requirements of the Contract
Documents.
1.10 MAINTENANCE
A. A complete offering of preventative and full service maintenance contracts for the UPS system and
the battery system shall be available from the manufacturer. Contract work shall be performed by
factory-trained service personnel.
PART 2 - PRODUCTS
2.1 MANUFACTURERS
A. Basis of Design: Product specified is “MGE Galaxy 3500” as manufactured by APC by Schneider
Electric. Items specified are to establish a standard of quality for design, function, materials, and
appearance. Equivalent products by other manufacturers are acceptable. The Architect/Engineer
will be the sole judge of the basis of what is equivalent.
2.2 MODES OF OPERATION
A. Normal: The input converter and output inverter shall operate in an on-line manner to continuously
regulate power to the critical load. The input and output converters shall be capable of full battery
recharge while simultaneously providing regulated power to the load for all line and load conditions
within the range of the UPS specifications.
B. Battery: Upon failure of the AC input source, the critical load shall continue being supplied by the
output inverter, which shall derive its power from the battery system. There shall be no interruption
in power to the critical load during both transfers to battery operation and retransfers from battery to
normal operation.
C. Recharge: Upon restoration of the AC input source, the UPS shall simultaneously recharge the
battery and provide regulated power to the critical load.
D. Static Bypass: The static bypass shall be used to provide transfer of critical load from the inverter
output to the bypass source. This transfer, along with its retransfer, shall take place with no power
interruption to the critical load. In the event of an emergency, this transfer shall be an automatic
function. The UPS shall be able to recharge the batteries while supplying full power to the load via
the static bypass switch.
E. Internal Mechanical Bypass: As a standard feature, the UPS shall be equipped with an internal,
make-before-break, bypass switch. This switch shall mechanically bypass the UPS for times where
maintenance is required.
F. External Maintenance (Wrap-Around) By
pass: As an option for a single UPS unit, the system
may be equipped with an external MBC to electrically isolate the UPS during routine maintenance
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