2)Turn on the vacuum pump. Open the gauge manifold valves, then open the high and
3)Allow the vacuum pump to pull down to a 29.9" Hg vacuum. Evacuating period depends on pump capacity.
4)Close the low-side valve and high-side valve on the gauge manifold.
5)Disconnect the gauge manifold hose from the vacuum pump and attach it to a refrigerant service cylinder. Remember to loosen the connection and purge the air from the hose. For the required refrigerant charge, see the nameplate on the condensing unit or the rating label inside the icemaker. Hoshizaki recommends only virgin refrigerant or reclaimed refrigerant which meets ARI Standard 700 (latest edition) be used.
6)A liquid charge is required when charging an
7)Allow the system to charge with liquid until the proper charge weight is met.
8)If necessary, add any remaining charge to the system through the
9)Close the high and
10)Cap the refrigerant shutoff valves to prevent a possible leak.
46