Brazing Connections - Lennox XC20-036-230-01 Installation And Service Procedure

Brazing Connections

Use the procedures outlined in figures 8 and 9 for brazing
line set connections to service valves.
WARNING
Danger of fire. Bleeding the refrigerant
charge from only the high side may result
in pressurization of the low side shell and
suction tubing. Application of a brazing
torch to a pressurized system may result
in ignition of the refrigerant and oil mixture
- Check the high and low pressures
before applying heat.
CAUTION
Brazing alloys and flux contain materials which are
hazardous to your health.
Avoid breathing vapors or fumes from brazing
operations. Perform operations only in well-ventilated
areas.
Wear gloves and protective goggles or face shield to
protect against burns.
Wash hands with soap and water after handling brazing
alloys and flux.
XC20
IMPORTANT
Allow braze joint to cool before removing the wet rag
from the service valve. Temperatures above 250ºF can
damage valve seals.
Fire, Explosion and Personal Safety
Hazard.
Failure to follow this warning could re­
sult in damage, personal injury or death.
Never use oxygen to pressurize or
purge refrigeration lines. Oxygen, when
exposed to a spark or open flame, can
cause a fire and/or an explosion, that
could result in property damage, per­
sonal injury or death.
16
WARNING