Alpha Technologies FXM350_Micro350 UPS - Manual (Page 19)

17 017-241-B0 Rev B
3. Site Planning
WARNING!
Restricted Access: The Alpha FXM350 and Micro350 must be installed in a restricted
area accessible only by qualified service personnel.
The Alpha FXM350 and Micro350 are intended for permanent AC connection only.
The Alpha FXM350 and Micro350 must be correctly grounded for proper operation.
Older facilities may have inadequate electrical grounding. Inspection must be performed
by a qualified electrician before installation to ensure that grounding meets the local
electrical code.
The utility line attached to the Alpha FXM input MUST be protected by a circuit breaker
certified for this use in accordance with the local electrical code. The UPS must be con-
nected only to a dedicated branch circuit.
The UPS equipment that is powered by this service panel requires the neutral to be per-
manently bonded to the ground. Always disconnect the batteries before servicing the
circuit breaker panel.
The input and output lines to and from the Alpha FXM MUST have disconnect devices
attached.
The Alpha FXM is suitable for installations in network telecommunication facilities and locations where the
National Electrical Code applies.
Grounding:
The Alpha FXM is suitable both for installation as part of a common bonding network (CBN) and
an isolated bonding network.
For installations above 1400 m (4500 ft) elevation, additional cooling may be needed to reduce the operat-
ing temperature of the Alpha FXM. The maximum allowable operating temperature must be reduced by 2°C
(3.5 °F) for every 300 m (1000 ft) above 1400 m (4500 ft).
3.1 Safety Precautions
• Install the Alpha FXM350 and Micro350 and batteries on a surface that can support the total weight. See
Chapter "10. Specifications" on page 98.
• The input wiring must reach a suitably grounded power outlet and the load wiring must reach the
Alpha FXM350 and Micro350 output terminal blocks.
• Place the Alpha FXM350 in a properly sheltered location or inside a weather-proof enclosure to protect
the electronics from water, dust and other possible contamination.
• Backup Generator (If used)
In Generator mode, the Alpha FXM range of acceptable input frequency and voltage is expanded to
accept the fluctuations created by a generator. See "7.2.2 The LCD Control Menu" on page 45, Table B,
Sense Type .
Use a generator with electronic speed and voltage controls which produces less than 10% voltage total
harmonic distortion (THD). Mechanical governors can force the Alpha FXM to run continuously in Battery
mode. Before installation, make sure the generator’s output voltage is compatible with the Alpha FXM
input voltage requirements. To make sure the system runs smoothly, use a generator that supplies twice
as much power as drawn by the total load.