( 1 0 ) Exert a firm squeeze pressure and fit the
2-7. Setting Up the Heater.
lined end of the duct inside the band of the attached
In choosing a site for the heater, care should be
d u c t , forcing the two duct hand pins and one an-
t a k e n to prevent fires. All safety precautions should
c h o r i n g pin into the three holes in the band of the
b e observed closely when setting up the heater for
attached duct.
operation. Place the heater so the discharge
( 1 1 ) Rehook the cord that was released in (9)
openings will face the items or the areas to be
above and pull out and hook the six-duct expanding
heated. Allow for reasonable slack and sag in the
c o r d s of this duct.
c a n v a s ducts (fig. 1-3). Retract the wheels to level
( 1 2 ) Attach the remaining 12-inch duct in the
t h e heater, maintaining a firm forward pull on the
same manner as described in (8) through (11)
w h e e l retracting handle (para 2-3 g), to p r e v e n t t h e
above.
heater from settling with a jolt. Check the heater
visually to see that it is level. It must be level so the
NOTE
f u e l will flow evenly around the burner. Place the
It is generally not efficient to extend the 12-inch
e x h a u s t extension stack, with spark arrester screen
ducts further than two lengths (24 ft) even though
the unit is designed to deliver heated air up to 36
downward, around the sleeve at the top front of the
feet. This can be accomplished, however, by
heater cabinet.
attaching the 6-inch ducts at the ends of the
a. A t t a c h i n g 1 2 - I n c h C a n v a s D u c t s . T o a t t a c h
second set of 12-inch ducts
t h e four 12-inch canvas ducts, proceed as follows:
( 1 ) Unroll a 12-inch duct and place it next to
b. Attaching 6-inch Canvas Ducts. D i s t r i b u t i o n
t h e discharge opening of the heater so the asbestos-
o f the heat may he subdivided to as many as six
lined end can be attached to the heater.
d i f f e r e n t areas by using the transition plates and 6-
(2) Remove the nut, flatwasher, and lock-
.
i n c h ducts as follows:
w a s h e r from each of the two duct band pins in the
( 1 ) Loosen the three thumbscrews and remove
duct band of the lined end. Remove the two pins
t h e two transition plates (fig. 1-2), mounted at the
and store all these removed parts in the tool pouch.
side of the heater. T h e s e p l a t e s a r e u s e d t o a d a p t
( 3 ) Pull out the two spring lock clips (fig. 2-
the 6-inch ducts to the 12-inch ducts.
1 ) , built into the discharge opening collars, about
(2) Release the duct expanding cord at the
an inch and turn the clips sideways to hold them
e n d of the 12-inch duct; rotate the plate until the
out.
t h r e e thumbscrews aline with the three holes in the
(4) Place duct band inside the discharge
duct band. Tighten thumbscrews securely.
o p e n i n g collar, fitting the duct anchoring pin into
( 3 ) Fit the transition plate (fig. 2-3), with the
the hole at the bottom of the collar.
flat side out, inside the duct band at the end of the
(5) Aline the spring lock clips with the holes in
12-inch duct; rotate the plate until the three
t h e duct band and then release the clips by turning
t h u m b s c r e w s aline with the three holes in the duct
them slightly.
band. Tighten thumbscrews securely.
( 6 ) Round out the duct by pulling each of the
(4) Unfasten the duct storage tube snap
six duct expanding cords out about 8 inches and by
s p r i n g locks (fig. 1-2) from the duct storage tubes,
hooking the cords over the cord locks (fig. 2-3 ).
and remove the 6-inch ducts.
(7) Attach the second duct by repeating the
( 5 ) Select the end of the 6-inch duct that has
procedures in (1) through (6) above.
two anchoring pins opposite each other in its
CAUTION
flexible band.
B e sure to attach the asbestos-lined ends
( 6 ) Squeeze the ends of the duct together and
of the ducts to the heater.
insert the anchor pins into the pin anchors (fig. 2-3)
( 8 ) Extend the 12-inch ducts for an additional
on the transition plate so that the duct is flush and
1 2 feet if desirable by taking one of the remaining
tight with the transition plate.
ducts and placing its lined end at the free end of one
(7) Repeat (5) and (6) above to attach two
of the ducts already attached.
more 6-inch ducts to this transition plate.
(9) Release the duct expanding cord at the
( 8 ) Repeat (1) through (7) above to attach the
end of the attached duct to make its end more
other transition plate and the remaining ducts.
flexible.
2-4
