Installation Manual

Installation
1–32 975-0639-01-01 Rev D
This guide for use by qualified personnel only
Multiple Unit Configuration
The Conext SW inverter/chargers support multiple unit configuration to increase
power output. This gives the system engineer and/or installer more options to
work with when tailoring a system to meet load demands.
In a multiple unit configuration, only two Conext SW inverter/chargers of the same
model can be used. For example, two Conext SW 4024 120/240 units can be
configured because both units each have a 24-volt rating and a continuous
power rating of up to 3500 watts.
In this configuration, the inverter and charger capacity of a system is doubled. In
the case of two Conext SW 4024 120/240 units, the inverter power rating doubles
to 7000 watts and the charging output current doubles to 180 amps. However,
the AC transfer relay rating of 30-amps remains the same. Inverter/chargers can
operate from different battery banks, meaning each unit is connected to its own
battery bank. However, it is highly recommended to use only a single battery
bank. See “DC Connections for Multiple Unit Configuration” on page 1–34.
IMPORTANT: In a multiple unit configuration where two Conext SW units are set
up together, the AC transfer relay rating remains the same at 30 amps. This AC
transfer relay rating does not double to become 60 amps.
WARNING
FIRE HAZARD
Do not power multiple loads in excess of 30 amps even in a multiple unit
configuration.
Failure to follow this instruction can result in death or serious injury.
ConextSW-NA-InstallationGuide.book Page 32 Tuesday, July 21, 2015 4:39 PM