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 TM5-4120-384-14
4-34.
HEATER
ELEMEHTS.-Continued
lock
washers,
and
flat
washers
and
(2) Remove two screws,
remove heater support.
(3)
Remove
attaching
hardware
from
heater
mounting
bracket.
enough
to
gain
access
to
top
heater.
(4)
Slip
bracket
UP
(5) Remove retaining nut, lock washer, flat washer,
and
insulating washer and slip heater out of bracket.
(6) Remove remaining heaters using same methods as (4) and
(5)
above.
Use a clean dry cloth to wipe
dust
and
dirt
from
Cleaning.
c.
Do not use solvent or detergent.
heaters.
Replace.
Replace
any
defective
elements.
d.
e.
Installation.
(1) Position heater mounting bracket
into
top
of
unit
so
heaters can be mounted one at a time.
(2)
Start
with
bottom
most
heater
to
be
installed.
(3) Slip heater through the bracket hole and secure with
nut,
lock washer, flat washer, and insulating washer provided with
heater.
(4) Install remaining
heaters one at
a time. Slide
mounting
bracket down progressively
as each heater
is installed.
(5) Place heater support
in
the
unit
and
slip
ends
of
heaters
through support holes.
(6) Install mounting
hardware
in
heater
support
and
heater
mounting bracket.
(7) See tags and wiring
diagram figure
and
connect
heater
Remove tags.
leads at terminal board TB2.
(8) Install
junction
box
and
control
module.
(See
and
4-26.)
(9) (Models F18H-3S and F18H-1S) Install three top covers
(Models F18H-3SA and F18H-3SB) Install top cover
(10)
Connect
power
at
power
source.
Change 2
4-100
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