Hoshizaki KML-200MWE V. Removal And Replacement Of Components, Service For Refrigerant Lines

V. REMOVAL AND REPLACEMENT OF COMPONENTS

1. SERVICE FOR REFRIGERANT LINES

[a] REFRIGERANT RECOVERY

The icemaker unit is provided with two Refrigerant Access Valves on the low-side and high-side lines. Recover the refrigerant from the Access Valves and store it in an ap- proved container. Do not discharge the refrigerant into the atmosphere.

[b]EVACUATION AND RECHARGE

1)Attach Charging Hoses, a Service Manifold and a Vacuum Pump to the system. For models with the Line Valve, be sure to connect Charging Hoses to both high-side and low-side lines, or the high-side line cannot be evacuated because of the Line Valve.

2)Turn on the Vacuum Pump.

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 Service Manifold.

5)Disconnect the Vacuum Pump, and attach a Refrigerant Service Cylinder to the Low- side line. Remember to loosen the connection, and purge the air from the Hose. See the Nameplate for the required refrigerant charge. Hoshizaki recommends only virgin refrigerant or reclaimed refrigerant which meets ARI Standard No. 700-88 be used.

6)Open the Low-side Valve. Do not invert the Service Cylinder. A liquid charge will damage the Compressor.

7)Turn on the icemaker when charging speed gets slow. Turn off the icemaker when the Low-side Gauge shows approximately 0 PSIG. Do not run the icemaker at negative pressures. Close the Low-side Valve when the Service Cylinder gets empty.

8)Repeat the above steps 4) through 7), if necessary, until the required amount of refrigerant has entered the system.

9)Close the two Refrigerant Access Valves, and disconnect the Hoses and Service Manifold.

10) Cap the Access Valves to prevent a possible leak.

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