Vertical Down Joint; Vertical Up Joint - Movincool CLASSIC PLUS 14 Service Manual

TROUBLESHOOTING AND REPAIR

Vertical Down Joint

Vertical Up Joint

MOVINCOOL CLASSIC PLUS 14 SERVICE
• USE OF DRY NITROGEN GAS
During brazing, the inside of the pipe
undergoes an oxidative reaction due to
the brazing flame. Introduce dry nitrogen
gas (1 liters/min.; adjust with the flow
regulator) through the pinch-off tube of
the refrigerant cycle to prevent oxidation.
NOTE: Take care not to allow dirt, water, oil, etc. to
enter into the pipe
• VERTICAL JOINT
Heat the whole brazed fitting to a proper
brazing temperature. Bring the brazing
filler metal into contact with the fitting so
that the brazing filler metal starts flowing
by itself. Stop heating the fitting as soon
as the brazing filler metal has flown into
the clearance. Since the brazing filler
metal flows easily into the portion heated
to a proper temperature, it is essential to
keep the whole fitting at a proper brazing
temperature.
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