TM 10-4520-262-12&P 0006 00
During operation, some metal components of the heater assembly, such as the debris
grill on the outlet duct, the upper and lower heater housing assemblies, combustion
exhaust pipe (near heat exchanger), etc., can cause severe burn injuries if contact with
bare skin occurs.
Make sure the heater assembly has been properly set up and the appropriate fuel selected as detailed in
Table 1 of WP 0005.
Make sure the fuel can is full before starting. If the fuel can is empty, refer to the section of this work
package entitled Refueling the Convective Space Heater.
STARTING THE HEATER. To start the heater, switch the ON/OFF switch (1) on the in-tent controller (2)
to the ON position. The green HEATER ON/ON-HOLD advisory light (3) will illuminate and the pre-purge
cycle will begin.
The heater assembly can be shut down in a normal manner at any time by placing the
ON/OFF switch to the OFF position. However, to insure both a fully charged battery for
subsequent operation and a longer battery life, the heater assembly, whenever possible,
should be allowed to run until the green BATTERY CHARGED light (4) illuminates.
When first setting the LOWER-HIGHER control knob (5), on the in-tent controller assembly (2), it should
be set it to its highest setting. When the tent has reached a comfortable temperature, turn the LOWER-
HIGHER knob down until the amber AT SETPOINT light (6) illuminates. The heater control assembly will
then regulate to this temperature.
The heater will run at full power until the battery charging light comes on. If the red SYSTEM FAULT light
(7) illuminates, the heater will enter shut down mode and the SYSTEM FAULT light will flash from 1 to 9
times and an audible series of tones indicating a diagnostic code. These diagnostic codes provide the
user with information regarding the nature of the fault. In some cases the problem may be corrected by
the operator and a re-start may be attempted. If the problem is of a more serious nature and cannot be
corrected by the operator, the heater should be referred to Unit Maintenance for repair. Refer to WP 0009
entitled Troubleshootingfor a complete discussion of the various diagnostic codes.