Alpha Technologies PN-4 - Manual (Page 15)

15 031-103-B0-004, Rev. D
4.0 Installation
4.1 Utility Powering
XM2 Power Supplies are powered by either 120Vac or 240Vac (depending on the model),
attached to an external service entrance. The size of the service conductors must be based
on the actual size of the utility service and be in accordance with applicable electrical code
requirements.
The utility conduit may be placed in one of two locations, depending upon the utility service
entrance requirements. Note the optional conduit location for use with meter base and the
standard location for entry directly to the load center.
Proper grounding is critical. The enclosure MUST have a hard-wired ground to the service
entrance. A qualifi ed electrician will need to verify that grounding is in compliance with
applicable electrical codes (refer to Section 3.2, Enclosure Grounding).
Both standard and EUSERC style meter bases are available for some confi gurations as
illustrated in the following fi gures. Consult Alpha Technologies or your local representative
regarding compatibility with your specifi c application. Verify electrical codes prior to
installation. Codes may vary and contain specifi c conduit and wire sizes for connection to the
service entrance.
The enclosure is equipped with a Square D, rainproof service entrance (SUSE rated). The
service entrance is equipped with a circuit breaker for a 120/240Vac, split phase, 3-wire
w/GND source.
Materials Required:
• 1" diameter conduit (or larger)- PVC or Galvanized Steel (threaded)
• #6 AWG - Red insulated wire (stranded)
• #6 AWG - Black insulated wire (stranded)
• #6 AWG - White insulated wire (stranded)
• #2 AWG or larger - copper ground wire (stranded)
ATTENTION:
The following utility powering procedures must be performed only by qualifi ed service personnel and in
compliance with local electrical codes. All applicable codes must be adhered to when installing a system,
pouring concrete, or placing a preformed pad. These codes supersede any procedures outlined in this
document.
• All mounting hardware must be stainless or galvanized, depending on local environmental
conditions. Use of improper hardware may cause corrosion, which is not covered under
warranty.
• Soil conditions vary and may affect the integrity of the pad. Alpha Technologies recommends
that proper steps be taken to ensure that the soil supporting the pad is stable. Improper
installation of the pad may cause uneven settling or cracking, which is not covered under
warranty.
CAUTION!