TM 5-4520-253-13
f. Open control box (15) and unlock two studs (16) which secure control box to heater case.
Rotate control box 180° so that cover is upright.
Tighten studs. Close control box.
3 - 1 2 . A D D I T I O N A L I T E M S R E Q U I R ED
In addition to items furnished with heater (para 3-7),
installation.
terns listed in table 3-1 are necessary for
Table 3-1. Additional Items
Number
of Items/
Quantity
Description
Function
AR
3-wire, 16-gauge shielded cable
Connects room thermostat to heater.
AR
3-wire, 12-gauge cable
Connects power plug to power source.
AR
2-wire, 16-gauge cable
Connects fuel pump to heater.
1
Fuel line
Connects fuel container to external fuel
pump.
1
Fuel line
Connects external fuel pump to fuel inlet
fitting.
1
Fuel line
Connects fuel overflow fitting to overflow
container.
2
l/4-inch mounting bolts (washers
Secures external fuel pump.
and nuts, if needed) or lag screws
1
Electrical plug
Mates with external fuel pump connector
(MS27142-2).
1
Fuel container, with shutoff
Provides fuel supply for heater.
valve
1
Overflow container
Collects overflow fuel at fuel overflow fitting
of heater.
1
Exhaust line
Mates with 2-inch male pipe fitting at rear of
heater.
4
5/16-inch mounting bolts (washers
Secures heater to mounting surface.
and nuts if needed) or lag screws
3-5
