Decommissioning; Standstill; Disassembly Of The Condensing Unit Or Of Components; Drain Oil - Bitzer LHL3E/2EES-2Y Instructions De Service

• Visual inspection of the cables and of the electrical
connection points.
Update the data protocol and compare it with previous
measurements. In case of larger deviations, determine
the cause and eliminate it. Also check the following
points and perform maintenance work if necessary:
• Contamination of the condenser.
• Refrigerant charge (level in liquid sight glass).
• Humidity of the refrigerant (moisture indicator) – re-
place the filter drier, if necessary.
• Safety-relevant parts, e.g. pressure limiter, motor
protection device.
Please refer to the operating instructions for the com-
pressor and the pressure vessel for information about
oil change and further maintenance work.

10 Decommissioning

10.1 Standstill

Leave the oil heater switched on until disassembly.
This prevents increased refrigerant concentration in the
oil.
WARNING
Risk of refrigerant evaporation from the oil.
Increased risk of flammability, depending on the
refrigerant!
Shut-down compressors or used oil may still
contain rather high amounts of dissolved refri-
gerant.
Close the shut-off valves on the compressor
and extract the refrigerant!
10.2 Disassembly of the condensing unit or of
components
WARNING
Compressors or other components of the con-
densing units may be under pressure!
Serious injuries are possible.
Depressurise all relevant components!
Wear safety goggles!
WARNING
Risk of electrical shock!
Voltage may be present on electrical compon-
ents!
Disconnect the voltage supply! Remove the
fuses!
32
Close the shut-off valves upstream and downstream of
the component in question. Extract the refrigerant. Do
not vent the refrigerant, but dispose of it properly!
Loosen screwed joints or flanges on the compressor
valves. Remove the compressor from the system; use
hoisting equipment if necessary.

10.3 Drain oil

Refer to the Operating Instructions for compressor and
oil separator.
Dispose of waste oil properly!
CAUTION
When the system has been in operation, the
temperature of the oil in the compressor and in
the oil separator may be over 60°C.
Serious burns are possible.
Before performing any work on the condensing
unit: switch off the system and allow it to cool
down.
10.4 Remove or dispose of the compressor and other
components
Remove the refrigerant and the oil (see above). Dis-
posal of individual components or of the complete con-
densing unit:
• Close open connections gas-tight (e.g. shut-off
valves, flange, screwed joints).
• If necessary, transport heavy components with hoist-
ing equipment.
• Have the components repaired or dispose of them
properly.
KB-206-1