Page 91
Component Access/Removal
Integrated (
Integrated (
700-
700-
2) Series
2) Series
7-24
#
3756780
- Revision D - July, 2005
Lower Compartment Heat Exchanger Removal
(All Tall Units)
The lower compartment heat exchanger is behind the
switch enclosure and passes down through a hole in
the back right corner of the lower compartment floor.
NOTE:
Before attempting to remove a heat exchanger,
evacuate the refrigerant from the sealed system.
To access and remove the lower compartment heat
exchanger, the following components must first be
removed: both drawer assemblies, the heat exchanger
cover, lower evaporator cover, switch enclosure and
the kickplate/grille. The unit tray will also need to be
slid out.
NOTE:
It will be necessary to disconnect the compres-
sor electrical leads in order to pull the tray out far
enough to access and remove the heat exchanger.
Begin removing the heat exchanger by cutting the inlet
and outlet tubes at the evaporator.
Cut the suction line approximately two inches from the
compressor.
be replaced at the same time, cut the drier inlet tube
approximately one inch from the drier, leaving the capil-
lary tube attached.
exchanger will be scrapped, so use a tin snips or similar
tool to cut the heat exchanger near the hole in the floor
of the lower compartment. Pull the pieces of the heat
exchanger out and clear the Hot-Melt away from the
hole.
NOTE:
To avoid damaging the unit from the brazing
torch flame, remove the evaporator from the compart-
ment and attach the new heat exchanger to the evapo-
rator outside of the unit.
NOTE:
Applying dish soap on the tubing insulation of
the heat exchanger and around the holes in the lower
compartment floor will assist in working the heat
exchanger through the hole.
NOTE:
When installing the replacement heat exchang-
er, be sure to thoroughly clean the tubing before braz-
ing.
NOTE:
Apply a bead of silicone around the heat
exchanger where it passes through the hole in the
lower compartment.
1"
2"
Figure 7-59. Cut Inlet and Outlet at Evaporator
Cut here
Hole through floor
Heat Exchanger
Figure 7-60. Cut Suction line at compressor
Cut here
Compressor
Figure 7-61. Cut Inlet at Filter-Drier
Cut cable tie
Leave capillary tube
attached to drier
Cut 1” from drier