Basic Components; Perimeter Hot Tube - Electrolux Side by Side Refrigerator Service Manual

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Section E- Refrigeration System
1. All joints to be soldered must have proper fit. Clearance between tubes to be
soldered should be from .001" to .006". It is not practical to actually measure
this; however, you do not want a dry fit to be loose. Tubing joints should
overlap about the distance of their diameter except for restrictor tubes
(capillary tube), which should be inserted 1.25".
2. Clean all joint areas with fine steel wool or preferably an abrasive cloth, such
as grit cloth No. 23 or Scotch-Brite.
3. Apply a thin film of liquid flux recommended for silver soldering to surfaces to
be joined and to surfaces immediately adjacent to joint.
4. Align tubing so no stress is on joint. Do not move tubing while solder is
solidifying or leaks will result.
CAUTION
During application of heat, use wet cloths to prevent heat from conducting to areas
other than the soldered joint. Use a sheet of metal or torch guard pad as a heat deflector
to keep flame away from inflammable materials and painted surfaces.
5. Use a torch of adequate capacity so joint can be quickly heated with a
minimum of heat travel to other points. Use a good grade of silver solder.
6. Solder connections. If tubing is properly cleaned and fluxed, solder will flow
readily. Use only enough solder to make a good bond.
7. Allow joint to cool, then wash exterior with water to remove flux.

BASIC COMPONENTS

The basic components of a refrigerator are a compressor, condenser, evaporator,
heat exchanger (capillary tube and suction line), drier and perimeter hot tube.

Perimeter Hot Tube

To reduce the possibility of condensation forming on the exterior of the cabinet in
high humidity areas, a perimeter hot tube (refrigerant tube) has been installed in the
unit. The perimeter tube extends up the left side, across the top of the freezer and
down the center mullion and into the filter drier. When the compressor operates,
warm refrigerant flows through the primary condenser, then into the perimeter hot
tube, warming the cabinet front exterior.
The perimeter hot tube is not replaceable. In the unlikely event of a leak in the hot
tube, a kit is available to bypass the hot tube in the sealed system. A electrical
heater wire must be installed within the tubing. Refer to the appropriate parts list of
the model being serviced for the correct kit part number.