INSTALLATION OF
STERLING BATTERY
CHARGER
Position the charger in a cool dry well ventilated space, ensuring a reasonable air flow around the charger ( do not install in a cupboard or sealed compartment.
This unit is fitted with an automatic 110/230 volt crossover as such the following voltage may be used ( 80-
130or
install as close to the batteries as possible, preferably within 2 meters of the batteries.
Before installing, the charger must be set up. beside the output terminals one can see two sets of switches under the terminals, a switch bank of 3 small switches and a large single switch. the large switch ( s1 ) changes the equalizing or bulk charge voltage from 14.4 - 14.8 volts ( 28.8 - 29.6 for 24 volt units ) the 14.4 volt position must be used if gel or sealed lead acid batteries are used on any bank ( always avoid gel or sealed batteries for heavy cycling ), the 14.8 volt position should be used for conventional ventilated lead acid batteries and traction batteries. if in doubt go for the 14.4 volt position,
The switch in the down position confirmed by the top l.e.d being yellow is suitable for standard lead acid or traction batteries ( 14.8 volts/ 29.6 volts ) not suitable for gel or sealed batteries.
the small set of three switches changes the time of the equalizing charge by approx 1 hr per switch, in order to set
these switches divide the battery charger amp/hr into the battery bank size ( domestic bank ) e.g take a 25 amp charger on a 200 amp hr battery bank = a ratio of 8 : 1 . if the ratio is between
1switch 1 2 and 3 to the off position, this will increase the equalizing time to about 4 hrs.or set up as per label hints. if in doubt set to the standard setting as per the label covering the output battery terminals.
Having set the battery type switch and the equalizing time switches the charger should be installed, and need only be altered in the event of a battery type change or battery bank size change.
The charger may be mounted in any position . in the interests of safety connect the cables to the charger and run them to the batteries, the correct cable to use is multi strand automotive type cable. each strand is suitable to carry 1/2 an amp over about 2 meters, ie a 30 amp charger would require 50 strand copper cable.
Connect the cables as per the diagram, ensure that all terminals are used, ie in the event of only one battery being charged then connect the surplus positive output to the other used output, ie both outputs are on the same battery.
It is extremely important to join any output terminal not being used on to one which is in use , ie if only 2 outputs are to be used then the third must be joined on