Page 90
Component Access/Removal
Integrated (
Integrated (
700-
700-
2) Series
2) Series
7-23
#
3756780
- Revision D - July, 2005
Upper Compartment Heat Exchanger Removal
(700TC/I-2, 700TR-2)
The upper compartment heat exchanger in the models
700TC/I-2 and 700TR-2 passes down through a hole in
the back left corner of the mullion. The heat exchanger
then passes down through the lower compartment
behind the heat exchanger cover and through a hole in
the back left 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 upper compartment heat
exchanger, the following components must first be
removed: the upper light diffuser, upper evaporator
cover, both drawer assemblies, heat exchanger cover in
the lower compartment 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.
The heat
exchanger will be scrapped, so use a tin snips or similar
tool to cut the heat exchanger near the hole in the mul-
lion and 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 holes.
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 mullion
and lower compartment floor, will assist in working the
heat exchanger through the holes.
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 holes in the
mullion and lower compartment.
1"
2"
Figure 7-56. Cut Inlet and Outlet at Evaporator
Cut here
Figure 7-57. Cut Suction line at compressor
Cut here
Compressor
Figure 7-58. Cut Inlet to Filter-Drier
Cut cable tie
Leave capillary tube
attached to drier
Cut 1” from drier
Heat Exchanger
Hole through mullion