Sinclair ASE-150AH, Руководство по обслуживанию

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must be filled in. Otherwise, the oxidized chips may block refrigerating circulatory system.

Trash and foreign matters may come into the pipe in the process of installing the refrigerant pipe.
Be sure to blow them off with nitrogen before connecting the pipe to the outdoor units.

Use high-pressure nitrogen to clean the pipelines. Do not use the refrigerant of the outdoor unit
for cleaning.

Pipes size of the units.
Outdoor units Liquid pipe Gas pipe
ASE-150AH
Φ16mm Φ32mm
ASE-192AH
Φ16mm Φ32mm

All connections between indoor unit and outdoor unit are copper-to copper and should be brazed
with a phosphorous-copper alloy material such as Silfos-5 or equivalent. Do not use soft solder.
The outdoor units have reusable valves on both the liquid and vapor connections. The total
system refrigerant charge is retained within the outdoor unit during shipping and installation. The
reusable valves are provided to evacuate and charge per the instruction.

Dry nitrogen should always be supplied through the tubing while it is being brazed, because the
temperature required is high enough to cause oxidation of the copper unless an inert
atmosphere is provided. The flow of dry nitrogen should continue until the joint has cooled.
Always use a pressure regulator and safety valve to insure that only low pressure dry nitrogen is
introduced into the tubing. Only a small flow is necessary to displace air and prevent oxidation.

Install the connective pipe only after fixing the indoor unit and outdoor unit. Keep dry when
installing the connective pipe. Do not let moist intrude into the pipeline system.
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