Sharp AF-05CML User Manual

10
AF-05CML
INNER CONE
TORCH STEM
SILVER ALLOY
Figure 3
Directing Torch Flame to Copper Tubing.
3/8"
PROPER FLUXING
Flux is necessary when using silver solder; it is not required when using silfos
on copper to copper joints.
To do a good job the flux should cover the tube surface completely. Be careful
not to introduce any flux inside the tubing.
Fluxing should be done after the tubing is mated together and just before brazing
is done.
Do not allow it to dry out.
When brazing, the flux should become entirely liquid and clear, like water. The
temperature will be at 1100˚F and only a little more heat will allow the alloy to
flow freely into the joint.3
EMERY CLOTH
KEEP TUBE IN
DOWNWARD POSITION
Cleaning Tubing.
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Figure 1
HOW TO REPAIR REFRIGERATION
Before sealed system work can be preformed a refrigerant recovery EPA and LOCALLY approved certification is
required, additionally, EPA and LOCALLY approved refrigerant recovery equipment is required.
SEALED SYSTEM REPAIR
Sealed system repairs should be properly diagnosed before entering into a repair of the system.
It is important to follow proper procedures when doing a system repair for safety reasons and that the repair will result in a
restoration of the system to proper factory standards.
SAFETY REMINDERS
1) Do not heat any system component with an open flame for any reason.
2) Do not solder until you are sure that all refrigerant has been removed from the system.
3) Do not heat the charging cylinder with an open flame. Use warm water only and do not exceed 125˚F (not too hot to keep
your hand in.)
4) Do not over fill any charging cylinders, as they could explode when over filled.
5) Use proper wrenches.
6) Use safety goggles when working with refrigerants.
7) Keep a fire extinguisher within easy reach.
8) Watch flame direction when soldering so as not to burn clothing, wiring or other components.
9) Solder in a well ventilated area. If a high concentration of freon is present, an open flame will create phosgene gas which
can be harmful.
PROPER SOLDERING
Joint clearances should be maintained so that the brazing alloy will flow between
the closely mated surfaces rather than forming large fillets.
This films make the strongest joints, capillary attraction also work best with close
tolerance.
The best clearance is between 0.01" to 0.03", the amount of lap will be
approximately 3/8" depending on the sweging tool used. (Figure 1.)
To make a sound, leak tight joint, the brazing alloy when raised to brazing
temperature, must wet and flow freely over the entire surface of the tubing in the
joint area.
To assure this, the tubing surfaces must be free of all dirt, grease, oil and oxides
otherwise the alloy will not wet and flow properly over any surface with these
elements present. Cleaning can be done with an abrasive cloth or steel wool.
Never blow into the tubing because this will introduce a lot of moisture into the
system. Open tubing joints should be covered if exposed for long periods of time.
Figure 2
GOOD FIT
POOR FIT
Joint Clearance.
PROPER
JOINT FIT
CLEARANCE
.001"TO .003"
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CLEANING TUBING

Sharp AF-05CML Specifications

General

Brand	Sharp
Model	AF-05CML
Category	Air Conditioner
Language	English