Heat Controller BG-103A Service Manual page 11

Through-the-wall air conditioning
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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.
Figure 17A-Pulling Vacuum
Figure 17B-Charging
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