Alpha Technologies Spectra Series - Manual (Page 10)

Preliminary Operating Instructions 10 of 62 AIP SERVICE NUMBER 1-800-863-3364
service life of the charger. If the charger is to be operated at any of these temperature extremes, contact the
manufacturer to verify it will withstand these conditions, and perform at the needed capacity.
The overall outer dimensions of the S1, S2, and S3 charger enclosures are shown in FIGURE 4.0.
FIGURE 4.0: TABLE OF CHARGER ENCLOSURE SIZES
Enclosure
sizes
Overall
height in
modular
units
Overall height
in inches (mm)
Overall width
in inches (mm)
Overall depth in
inches (mm)
S1 10 U* 17.50 (445) 19.00 (483) 16.75 (425)
S2 15 U* 26.25 (667) 19.00 (483) 16.75 (425)
S3 20 U* 35.00 (889) 19.00 (483) 16.75 (425)
* A modular unit (U) is 1.75” (44mm) as defined by the
ELECTRONIC INDUSTRIES ASSOCIATION (EIA).
** Overall width is from the outer edges of mounting flanges, to correspond to a 19” (483mm) rack width.
5. INSTALLATION OF CHARGER
Proper installation is important to achieve good charger performance and to prevent damage to the charger
and batteries.
The S1, S2, and S3 enclosure sizes of the charger can be mounted on a shelf, countertop, floor, wall, or relay
rack.
Be sure to plan a clear routing for the conduit connections prior to mounting the charger. Looking at the front
of the charger, the conduit knockouts are provided on the right side, left side and bottom of the enclosure. See
SECTION 6.3. The AC input connections should enter at the left and the DC output connections at the right.
The alarm relay wiring, sensor wiring, and remote control wiring should enter at the right side through a
separate conduit knockout from the DC connections. The AC and DC wiring should be separated from each
other and from the other optional types of wiring, this is a UL requirement.
5.1 SHELF, COUNTERTOP OR FLOOR MOUNTING
The S1, S2 and S3 cabinets of the charger are shipped standard with a kit to install four cushioned feet.
These are designed to prevent marring of the mounting surface and to absorb vibration. The kit can be
found inside the charger cabinet in a small plastic bag. The kit consists of four round black rubber feet
and four mounting screws.
To install the feet, carefully lay the charger on its back onto a protective surface such as the shipping
carton collapsed flat. The four small .16” (4mm) diameter mounting holes can be found on the bottom
surface of the charger legs near the four corners of the charger. Place the mounting screw through the
recessed end of the foot. The screw head will be within the recess and the screw point will engage into
the mounting hole in the bottom of the charger. The screw is self-threading into the mounting hole.
Tighten each screw until it is snug but do not over compress the rubber.
Now, the charger can be rotated back to its upright position standing on the rubber feet. Be careful to lift
(do not slide) the charger into position.
Next, to avoid placing strain on the conduit and wiring, anchor the charger so it does not become
displaced. This can be done in either of two ways. The charger can be bolted down to the horizontal-
mounting surface that it is resting on or it can be bolted to the wall behind it.
To bolt to the horizontal mounting surface, the mounting bolts will attach through the four ½” (13mm)
diameter mounting bolt holes in the bottom surface of the charger legs that are nearest the corners of
the charger. The charger itself can be used as a template to mark the locations of the holes to be made
in the mounting surface or the bottom mounting hole dimensions in FIGURE 5.1 can be used to measure
the locations of the mounting bolt holes.