Installation Guide

Introduction
1–4 975-0638-01-01 Rev A
Key Features Explained
Built-in Charge
Formulas
For the unit to perform at the highest level, the batteries must be charged
correctly. The Conext SW has optimized algorithms for flooded, gel, and AGM
batteries.
Battery
Temperature
Sensor
Since battery temperature is a key factor in correct charging, the charging
formula must be adjusted (automatically and in real time) according to the actual
battery temperature to ensure that batteries are fully charged, but not
overcharged. For this reason, a battery temperature sensor (BTS) is included
with the Conext SW that works with a temperature-compensated charge formula.
Manual
Equalization
Over a period of time, the cells in a flooded battery can develop uneven
chemical states. This can result in a weak (undercharged) cell which, in turn, can
reduce the overall capacity of the battery. To improve the life and performance of
a non-sealed, flooded battery, the Conext SW’s multi-stage charging cycle
includes a manual equalize mode that can be used, if recommended by the
battery manufacturer.
Dead Battery
Charging
Another feature that the Conext SW includes is dead battery charging. The
Conext SW—unlike many chargers—has the ability to recharge batteries even if
the battery voltage is very low, i.e., as low as 12 volts.
Load Management The Conext SW has a built-in transfer relay that connects your inverter output or
AC input from the AC generator to your loads. Because the usual AC power
sources such as small generators often have limited current availability, having
the capability to manage your AC loads is extremely valuable. The Conext SW
provides a number of features to facilitate this.
• The charger is power factor corrected to use AC current as efficiently as
possible. Minimizing the AC current used by the charger means more
current is available for your AC loads.
• The Conext SW has a power share feature which prioritizes your AC
loads by reducing the charge current and maintaining the total input
current to less than the breaker setting.
Occasionally, AC input sources have low voltage. To avoid loading these weak
sources any further, the charger automatically reduces its AC current draw as the
AC voltage approaches the minimum acceptable level.
Multiple Unit
Configuration
See “Multiple Unit Configuration” on page 1–5.
Generator Support See “Generator Support” on page 1–5.
ConextSW-NA-OwnersGuide.book Page 4 Thursday, December 20, 2012 2:00 PM