TM 9-4520-258-14
Section III. SERVICE UPON RECEIPT
4-5. SITE REQUIREMENT.
a.
Location
(1)
Locate the ASH unit approximately 7 feet from the shelter, about midway between the shelter air
supply and return connections.
(2)
The heater duct openings must be facing the shelter connections.
b.
The power source must be located within 25 feet of the ASH unit.
c.
The external fuel source must be located within 25 feet of the ASH unit.
d.
Terrain
CAUTION
Do not set up the ASH unit on extremely unlevel (greater than 10 degrees from true horizontal
position) terrain. Doing so may result in improper operation or damage to equipment.
(1)
The wheel assemblies should be in the stowed position. Raise the front of the unit with the attached
jack and remove the wheel pin and move the wheels up toward the rear of the unit. Lower the front
end.
(2)
The terrain should be as level as possible. Level the ASH by adjusting the front of the unit with the
attached jack so it does not exceed 10 degree incline.
(3)
The area in front of the ASH unit must be clear of objects that would interfere with proper positioning of
the air ducts.
(4)
The area around and above (6 ft. from ground level) the exhaust pipe must be clear of obstacles.
(5)
The area of the right side of unit must allow access by the operator to operate the controls on the
control panel and allow a clear path for air flow to the combustion fan air inlet.
WARNING
Fuel is toxic and flammable, it can cause injury to personnel and damage to equipment.
Improper positioning of the external fuel source can cause the internal fuel tank to overflow.
Properly position external fuel source.
(6)
The terrain for the external fuel source should be as level as possible. The external fuel source must
be placed not lower than 12 inches below base of heater and not higher than 10 feet above the heater.
4-4
