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Equipment needed: Vacuum pump, charging cylinder, manifold gauge, brazing equipment, pinch-off tool capable
of making a vapor proof seal, leak detector, tubing cutter, hand tools to remove components and service valve.
B
A
B
A
B
A
COMPOUND GAUGE
SEE INSETS
BELOW
CAPILLARY TUBE
EVAPORATOR
(LOW PRESSURE SIDE)
COMPRESSOR
CONDENSER
(HIGH PRESSURE SIDE)
EXTERNAL VACUUM PUMP
LO HI
CHARGING CYLINDER
MANIFOLD
GAUGE
C
Figure 20A-Pulling Vacuum Figure 20B-Charging