Alpha Technologies FXM350_Micro350 UPS - Manual (Page 21)

19 017-241-B0 Rev B
Figure 8 — Mounting on optional pedestal
3.3.1 Battery Heater Mats
The FXM350 and Micro350 allow connection, on its front panel, of a battery heater mat without a thermostat
(#14 in Figure 3). Maximum power of the battery heater mat for use with the FXM350 connector is 55W. The
FXM turns the heater mat on when the temperature measured by the battery temperature sensor senses a
temperature < 5°C. It turns the heater mat off when the temperature raises to >15°C. For the Micro350XL or
bigger systems needing more than one heater mat, it is recommended to use the heater mats with built in
thermostat and daughter heater mats that can be daisy chained. These heater mats may be wired to the AC
in the terminal block on the distribution panel. Ensure that the input breaker is appropriately rated.