Electrolux Professional SKCH 100, Руководство по обслуживанию

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DOC NUMBER 595R495 80
SERVICE MANUAL Blast Chiller Freezer 100 - 200
4.3.6 Pipes Connections
Before starting the installation of the compressor, discharge the pressure of pre-charge by acting on both
service valves.
Warning : Do not remove any component from the compressor before having executed this operation.
Execute the installation in the following way:
Remove the service valves of the compressor;
Weld the service valves to the system pipes;
Reassemble the service valves on the compressor;
Check the leaks from the pipes by means of a pressure test with N
2
or dry air following all the
required safety procedures such as, for example, the use of a pressure reducer placed between the bottle
and the system and leaving the compressor service valves closed
Warning:
During this test, do not overcome the standstill pressure;
Open the service valves of the compressor;
Take away the air of the system by means of the vacuum till a minimum of 1,5 mbar;
Fill up the system with refrigerant.
Warning:
Do not use the compressor to create a vacuum
Do not power ON the compressor in vacuum conditions!
Warning:
Do not use the compressor to fill up the system with refrigerant.
Warning:
Before connecting, the service valves to the pipes be sure that all the plastic caps have been taken away.
Avoid, as much as possible, the air inlet into the compressor!
Keep the connections closed during the welding of the service valves to the pipes.
Once the service valves have been reassembled, keep them closed until the vacuum procedure is not imple-
mented.
Make sure that all pipes and joints are perfectly clean and leak-proof .