TM 5-4520-241-14
CHAPTER 4
ORGANIZATIONAL MAINTENANCE INSTRUCTIONS
SECTION I. SERVICE UPON RECEIPT OF MATERIEL
4-1.
INSPECTING AND SERVICING THE EQUIPMENT.
a. Inspect the heater for lost parts or for damage which may have occurred during shipment.
b. Check the controls for free operation.
c. Inspect for loose or missing hardware.
d. Inspect the room thermostat for a broken or loose element.
e. Inspect all tubing, lines, and fittings to see that they are secure and free of breaks, kinks, and other damage.
f. Correct all deficiencies or report them to direct support maintenance.
4-2.
INSTALLATION OF SEPARATELY PACKED COMPONENTS.
The room thermostat, the side case covers, and three plugs are packed separately. The three plugs are used for
connection of a fuel pump (two pins), the thermostat (three pins), and 120 volt AC power (four pins). The mating
receptacles for these plugs are clearly labeled. The side case covers are used only when the side louvers will not be
operating, or when the heater is in storage.
4-3.
INSTALLATION INSTRUCTIONS.
WARNING
Do not locate the heater where expelled exhaust gases can be recirculated into
inlet air openings of the heated space. Inhalation of exhaust fumes can cause
serious illness or death.
a. Location.
(1) Position the heater so that the exhaust can be vented to the outside with a short, direct run. Fresh air must
be pulled in through either the side louvers or return air opening, or both. If more efficient heat distribution can be
obtained by mounting the heater horizontally or vertically, make modifications as required (see figure 4-2).
4-1
