Installation manual

Physical Characteristics
153396 Revision D 1–9
This manual is for use by qualified installers only
Heater Fans
The heater fans provide supplementary heat to Xantrex GT250 inverters installed
in particularly cold areas. The heaters are standard on Xantrex GT250 600
inverters, and optional on Xantrex GT250 480 and Xantrex GT250 480 PG
inverters. The heaters ensure that the air temperature within the interior of the
Xantrex GT250 cabinet remains elevated in cold climates and enables the
Xantrex GT250 to begin operation when the external ambient temperature is near
the minimum operating limit. In addition to aiding start-up in low temperatures,
the heater fans will help maintain a constant internal temperature in order to
prevent condensation inside the unit. Each of the three heaters is capable of
producing from 500 W (at 85 °F) to 700 W (at -4 °F) of power, dependant on
ambient temperature.
Heater 1 and 2 are installed on the AC interface door and heater 3 is installed in
the interior wall of the DC interface.
Figure 1-6
Heater Fan Locations
Heater Fan 1
Heater Fan 2
Heater Fan 3
AC Interface Door
DC Interface Door