TM 9-4520-260-13
m. Heater Case (13). The heater case is constructed of sheet metal and has top and side cover panels that are inter-
changeable. Quick release 1/4-turn fasteners provide easy removal. Four captive nuts are used to mount the heater. An
air intake screen is used to prevent foreign matter from entering the heater. A louver is mounted on the front of the
heater case. It is adjustable to direct the discharge of air. The power receptacles are mounted on the control panel not
less than 3 inches apart. All heater components are mounted inside the heater case.
n. Cover Assembly (14). The cover assembly is supplied with, but is not part of, the heater. It can be used in place
of the top cover to attach ducting to provide outside air to heater.
o. Room Thermostat (Figure 1-3). The room thermostat is remotely mounted away from the heater and not in direct
line with the warm air output. The thermostat will withstand 15 to 20 cycles per hour within the range of +55 (12.8 )
F
C
or less to 85 (29.4 ) or more. The thermostat is encased in metal and all nonmetal parts are protected against
F
C
breakage.
Figure 1-3. Room Thermostat.
1-13. EQUIPMENT DATA.
Table 1-3. Equipment Data
Manufacturer............................................................... Hunter Manufacturing Company
Model number .......................................................................... UH48-E, Type IV, Diesel
Volts DC..................................................................................................................... 28
BTU output........................................................................................................... 15,000
Dimensions
Height .......................................................................................................... 12 inches
Width ........................................................................................................... 12 inches
Depth ...................................................................................................... 13-5/8 inches
Weight ........................................................................................................ 34 pounds
1-5