Alpha Technologies AlphaGen PN-6x-T 7.5kW 48VDC - Technical Manual - Manual (Page 40)

40 042-288-B0-001, Rev. A
Fig. 3-11, Installation Location of Pad Shear/
Magnet Assembly
(Dimensions in inches)
3.0 Installation, continued
3.3 PN-6x-T 7.5kW Installation, continued
3.3.2 Enclosure Installation Procedure, PN-6x-T 7.5kW
1. Position the enclosure above the concrete pad and slowly lower it into position
over the pad’s 3/8" (or 1/2") anchor or J-bolts. A 25+ year vapor barrier MUST be
used between the concrete and enclosure base to inhibit moisture ingress, and
to prevent possible corrosion caused by metal to concrete contact. The vapor
barrier material (such as Alpha P/N 564-721-10) should initially extend at least
1/2" in all directions around the perimeter of the enclosure. After the enclosure is
in place, the material should be cut closer to the enclosure, using the appropriate
knife or cutting tool.
2. Secure the enclosure using customer-supplied stainless, galvanized (or better),
fl at washers, lock washers and 3/8" (or 1/2") nuts at each mounting bolt. Torque
mounting hardware in accordance with manufacturers’ ratings.
3. The pad shear sensor is located in the left hand corner of the enclosure from the
rear door. To install, locate the loose magnet (located in a plastic bag included
with the enclosure). Remove the two screws holding the sensor in place, and lift
out. Using a silicone based glue, glue the loose magnet to the pad in the center
of the hole. After the glue has set, install the sensor with the two Phillips screws
so it faces the glued down magnet.
If a pedestal is used, relocate the pad shear sensor to the L-bracket located near
the bottom of the pedestal. Glue the pad shear magnet directly below the sensor.
Use the extender cable to connect the pad shear sensor wires to the wires
located in the generator enclosure (route wires through pad shear sensor hole in
the fl oor of the generator enclosure).
The pad shear sensor is a safety feature that must be correctly installed before connecting
the gas utility. This is a CRITICAL safety feature required to disable the generator in the
event of automobile impact, seismic, or other unforeseen catastrophic event.
To prevent damage to the enclosure, it must be mounted fl ush to a completely fl at surface. If the
concrete pad is uneven or has bumps, cracks or other imperfections, the installer is responsible for
correcting these defects prior to installing the enclosure.
CAUTION!
WARNING!
ENCLOSURE
FRONT 0.25
3.00
5.35
5.60
0.581
3.40