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Section 9. Evacuation <br /> 9.1 Evacuate the Refrigerant Lines and Indoor Coil <br /> Important: Do not open the service valves until <br /> the refrigerant lines and indoor coil leak check <br /> and evacuation are complete. 0350 <br /> STEP 1 - Evacuate until the micron gauge reads Microns <br /> no higher than 350 microns, then close off the ■0 <br /> valve to the vacuum pump. oN OFF <br /> III II� <br /> STEP 2 - Observe the micron gauge. Evacuation <br /> is complete if the micron gauge does not rise <br /> above 500 microns in one (1) minute. <br /> Once evacuation is complete blank off the 1 MIN. <br /> vacuum pump and micron gauge, and close the <br /> valves on the manifold gauge set. <br /> Section 10. Service Valves <br /> 10.1 Open the Gas Service Valve <br /> Important:Leak check and evacuation must be <br /> completed before opening the service valves. 1/4 TURN ONLY <br /> CAP COUNTERCLOCKWISE <br /> FOR FULL <br /> NOTE: Do not vent refrigerant gases into the POSITION OPEN <br /> atmosphere <br /> STEP 1 - Remove valve stem cap. <br /> �- VALVE STEM <br /> STEP 2 - Using an adjustable wrench, turn valve UNIT SIDE <br /> stem 1/4 turn counterclockwise to the fully open OF VALVE <br /> position. <br /> STEP 3 - Replace the valve stem cap to prevent <br /> leaks.Tighten finger tight plus an additional 1/6 PRESSURE TAP PORT <br /> turn. <br /> GAS LINE CONNECTION <br /> 18-BC108D1-1 B-EN 11 <br />