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Refrigeration Service

This ice machine use R-134a type refrigerant.

There are specific rules for handling that

refrigerant.

To check for system pressures, add a field supplied

clamp-on type service valve as a temporary means

of system access. After diagnosis and before final

repair, replace the clamp-on type valve with valves

that are brazed onto the process tubes of the

system.

Use a low flow of dry nitrogen when brazing on the

system.

Install a new filter drier when replacing a

refrigeration component or after a refrigerant leak

repair.

Evacuate the system to at least 300 microns and

use a micron gauge to measure the evacuation

level.

Weigh in the nameplate charge. The machine is

critically charged and a partial ounce mis-charge

will affect performance.

September 2009

Page 29

SCCG30 & SCCP30

Service Manual

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Scotsman SCCG30 Bedienungsanleitung Seite 30