Hoshizaki KMD-505MAJ Instruction Manual page 32

15) After checking the line set for leaks, vent the nitrogen charge from the line set.
16) Evacuate the line set. Allow the vacuum pump to pull down to a 29.9" Hg vacuum.
Evacuating period depends on pump capacity.
17) After evacuation, add the appropriate amount of additional R-404A. See "II.G.4 Line Set
Size and Refrigerant Charge" for details.
Hoshizaki Technical Support is available at 1-800-233-1940 for recommendations.
18) Close both gauge manifold valves.
19) Open the icemaker service valves first, then open the remote condenser unit service
valves.
20) Disconnect the gauge manifold hoses.
21) Replace all service valve caps and tighten.
22) Insulate all exposed tubing and fittings.
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