Specifications

U-ENS00011_99AtypSMSSpec_Rev2.doc

U-ENS00011 Rev2 12/9/08

This transition shall be accomplished without any s witching or coupling, and with no

interruption of power to the critical load f rom either a failure or restoration of the utility

AC power.

C. Recharge - Subsequent to restoration of utility AC power, the conv erter shall

automatically reactivate and provide DC power to the inverter, simultaneously

recharging the system battery. T his occurs automatically and without interruption to the

critical load.

D. Bypass - In the event that the UPS must be taken off line due to an overload condition or

UPS failure, the critical load shall be transferred to the bypass source via the static

switch without interruption of AC po wer to the critical load. A paralleling, wrap-around

contactor shall be used to maintain the bypass source. The static switch shall only be

utilized for automatic emerg ency transfers. A re-transfer from bypass to inverter shall be

performed automatically in overload conditions. A re-transfer shall be inhibited if

satisfactory synchronization of the inverter and by pass is not accomplished. The use of

the static switch shall not be required during the manual or automatic re-transfer

process, therefore increasing relia bility.

1.4 SUBMITTALS

1.4.1 Proposal Submittals

Submittals with the proposal shall include:

A. System configuration with single-line drawings.

B. Functional relationship of equipment including weights, dimensions, and heat

dissipation.

C. Descriptions of equipment to be furnished, including deviations from these

specifications.

D. Size and weight of shipping units to be handled by installing contractors.

E. Detailed layout of customer po wer and control connections.

F. Detailed installation drawings including all terminal locations.

1.4.2 Delivery Submittals

Submittals upon UPS delivery shall include:

A. Shop Drawings.

Submit system configurations with single-line diagrams, detailed layout of po wer and

control connections, dimensional data and detailed installation drawings including all

terminal locations.

B. Product Data.

Provide product data for UPS and battery including catalog sheets and technical data

sheets to indicate electrical performance, UPS type, battery type, detailed equipment

outlines, weight, dimensions, control and external wiring requirements, heat rejection