Heat Controller BHD-301 - Troubleshooting; Dehumidifier Does Not Dry Air Properly

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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, service valve.
B
A
COMPRESSOR
COMPOUND GAUGE
MANIFOLD
GAUGE
SEE INSETS
BELOW
EXTERNAL
VACUUM PUMP
CHARGING
CYLINDER
HILOW
A
B
A
B
C
CONDENSER ASSEMBLY
(HIGH PRESSURE SIDE)
EVAPORATOR ASSEMBLY
(LOW PRESSURE SIDE)
CAPILLARY
TUBE
Figure 31A-Pulling Vacuum
Figure 31B-Charging