Thermo King SLXi-300, Руководство по обслуживанию

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TK 61552-2-MM-EN
Refrigerant Leaks
Use a reliable leak detector that is suitable for R-404A and R-452A to leak test the refrigeration
system. Inspect for signs of oil leakage, which is the first sign of a leak in the refrigeration
system.
N No otte e:: It is normal for compressor shaft seals to have a slightly oily film.
Checking Compressor Oil
The compressor oil should be checked when there is evidence of oil loss (oil leaks) or when
components in the refrigeration system have been removed for service or replacement.
Figure 65. Compressor Oil Sight Glass - Location
1. Sight Glass
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1. Install a gauge manifold on the compressor.
2. Operate the unit on cool with a 20 psig (1.38 bar) minimum suction pressure and a 185 psig
(12.75 bar) minimum discharge pressure for 15 minutes or more.
3. After the unit has maintained the above conditions for 15 minutes, observe the oil level. The
oil should be 1/4 to 1/2 up in the sight glass.
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1. Run the unit through a complete defrost cycle.
N No otte e:: If the box is empty, you can run the unit on the heat cycle instead of the defrost cycle.
2. After completing the defrost cycle, run the unit on cool for ten minutes.
3. Observe the oil level. The oil should be 1/4 to 1/2 up in the sight glass.
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N No otte e:: Use refrigeration compressor oil ONLY. Polyol Ester P/N 203-513 is required for R-404A or
R-452A.
1. Pump down the compressor and equalize the pressure to slightly positive.
2. Disconnect the compressor oil filter return line or remove the oil fill plug from the top of the
compressor and add the oil.
3. Reattach the oil filter return line to the compressor or reinstall the oil fill plug.
4. Evacuate the compressor before opening the service valves.
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