Table of Contents
Advertisement
Recovery
When removing refrigerant from a system, either for servicing or decommissioning,
it is recommended good practice that all refrigerants are removed safely.
When transferring refrigerant into cylinders, ensure that only appropriate
refrigerant recovery cylinders are employed. Ensure that the correct number of
cylinders for holding the total system charge are available. All cylinders to be used
are designated for the recovered refrigerant and labelled for that refrigerant (i.e.
special cylinders for the recovery of refrigerant). Cylinders shall be complete with
pressure relief valve and associated shut-off valves in good working order. Empty
recovery cylinders are evacuated and, if possible, cooled before recovery occurs.
The recovery equipment shall be in good working order with a set of instructions
concerning the equipment that is at hand and shall be suitable for the recovery of
flammable refrigerants. In addition, a set of calibrated weighing scales shall be
available and in good working order. Hoses shall be complete with leak-free
disconnect couplings and in good condition. Before using the recovery machine,
check that it is in satisfactory working order, has been properly maintained and
that any associated electrical components are sealed to prevent ignition in the
event of a refrigerant release. Consult manufacturer if in doubt. The recovered
refrigerant shall be returned to the refrigerant supplier in the correct recovery
cylinder, and the relevant Waste Transfer Note arranged. Do not mix refrigerants in
recovery units and especially not in cylinders. If compressors or compressor oils
are to be removed, ensure that they have been evacuated to an acceptable level
to make certain that flammable refrigerant does not remain within the lubricant.
The evacuation process shall be carried out prior to returning the compressor to
the suppliers. Only electric heating to the compressor body shall be employed to
accelerate this process. When oil is drained from a system, it shall be carried out
safely.
The appliance shall be stored in a well-ventilated area where the room size
corresponds to the room area as specified for operation
The appliance shall be stored in a room without continuously operating open
flames (for example an operating gas appliance) and ignition sources (for example
an operating electric heater).
The appliance shall be stored so as to prevent mechanical damage from occurring
Compliance with national gas regulations shall be observed
The installation of pipe-work shall be kept to a minimum
A brazed, welded, or mechanical connection shall be made before opening the
valves to permit refrigerant to flow between the refrigerating system parts. A
vacuum valve shall be provided to evacuate the interconnecting pipe and/or any
uncharged refrigerating system part.
- 10 -
Copyright © 2018 LG Electronics Inc. All rights reserved.
Only training and service purposes.
- Quick Links:
- Model Information
Hide quick links:
Advertisement
Table of Contents
Troubleshooting
