Specialty Concepts ASC-Plus - Manual (Page 6)

INSTALLATION INSTRUCTIONS:
1. LOCATION: - The ASC-Plus may be mounted in almost any convenient location. The
unit should be mounted as close as possible to the batteries to avoid errors in battery
voltage reading. On units with temperature compensation (Option-A), the ASC-Plus
should be mounted within 10 feet of the batteries to enable the 10 foot sensor cable to
reach the battery. The ASC-Plus may be mounted on the rear of a module or other
surface using outdoor-type double-stick foam tape, or by using the mounting holes and
screws.
2. PROTECTION REQUIREMENTS: - The circuitry of the ASC-Plus is encased within
hard epoxy resin that offers substantial protection from the environment.
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HEAT: - The unit should not be mounted in direct sunlight or close to any heat
generating source to avoid extreme temperature increases. The rear of the unit
should not be blocked to allow air flow for adequate cooling.
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CORROSION: - The exposed terminal block is made of corrosion resistant nickel
plated brass. This will endure most outdoor environments. If the ASC-Plus will be
located in an excessively corrosive location, a coating of an oxide inhibitor should be
applied to the terminals.
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TEMPERATURE COMPENSATION CABLE (for units with Option-A): - The
temperature compensation cable and sensor need to be protected from damage
(cuts, impacts, rodents). If the wire or cable is damaged, the ASC-Plus will not
operate. (Refer to Options section: OPTION A - Temperature Compensation).
3. COMPLETE THE INSTALLATION OF ARRAY, BATTERIES AND LOAD: - Follow
the manufacturer's instructions for mounting and wiring the solar panel, batteries
and the load. Install with the correct series-parallel configuration to insure proper
system voltage and current
4. SELECT WIRE:
WIRE TYPE: - It is recommended that stranded wire rather than solid wire be
used whenever possible, because stranded wire does not fatigue and cause
loose connections over time as easily as solid wire does. Also, select a wire
that offers the appropriate insulation for the condition of the location. (Refer to
the U.S. National Electrical Code for additional information)
WIRE SIZE: - Wire should be sized of sufficient gauge to safely handle the rated
current of the system and to limit voltage drop. An alternative to using larger
wire is to use two wires for the runs and connections.
Approximate Wire Size: (for 10 foot total length: panels to batteries)
# Solar Panels (50 watt) Minimum Wire Gauge
1 # 14
2 # 12
3 - 6 # 10 (stranded wire)