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Page Title:
LIQUID INDICATOR (SIGHT GLASS). |
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 TM5-4120-384-14
5 - 3 2 . LIQUID INDICATOR (SIGHT GLASS).
The Liquid Indicator (sight glass) is located in the rear
(compressor/condenser) compartment. It can be seen on the
left
rear outside face of the unit.
Removal.
(See
a.
(1)
Disconnect
power
at
power
source.
(2) (Models F18H-3S and F18H-1S) Remove top rear cover (para
(3) Discharge and purge
the
refrigeration
system
per
paragraphs 5-11 and 5-12.
(4)
Disconnect
J11
from
auxiliary
power
input
plug.
(5)
Remove
four
screws,
two
clamps,
and
(6) Remove
two
screws,
lock
washers,
and
liquid
indicator
mounting plate.
(7)
Debraze
joints
and
remove
liquid
indicator.
Replace.
Replace
liquid
indicator
if
suspected
bad.
b.
c.
Installation.
(1)
Place
liquid
indicator
in
unit
and
align
tubing
ends.
(2) protect liquid indicator from overheating during brazing
operations. Direct flame away from liquid indicator body and wrap
liquid indicator body with wet rags.
(3)
Braze
joints
in
accordance
with
(4) Secure
liquid
indicator
with
screws,
lock
washers,
and
mounting plate.
(5)
Replace
(See
(6) Leak test all newly
connected
joints
and
all
tube
connections in the area.
(7)
Connect
P11
to
J11.
(8) (Models F18H-3S and F18H-1S) Install top rear
cover
4-11). (Models F18H-3SA and F18H-3SB) Install top cover
(9) Evacuate and charge the refrigeration
system
in
accordance with paragraphs 5-15 and 5-16.
5-71
Change 2
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