Charging Procedures; Decommissioning; Labelling; Recovery - Bosch CLIMATE 5000 Service Manual
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Also See for CLIMATE 5000:
- Installation manual (28 pages) ,
- Installation, operation and maintenance manual (24 pages) ,
- User manual (16 pages)
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refrigerant is within the system. When the final OFN charge is used, the
system shall be vented down to atmospheric pressure to enable work to
take place. This operation is absolutely vital if brazing operations on the
pipe-work are to take place.
Ensure that the outlet for the vacuum pump is not close to any ignition
sources and there is ventilation available.
1.2.16 Charging procedures
In addition to conventional charging procedures, the following
requirements shall be followed:
• Ensure that contamination of different refrigerants does not occur
when using charging equipment. Hoses or lines shall be as short as
possible to minimize the amount of refrigerant contained in them.
• Cylinders shall be kept upright.
• Ensure that the refrigeration system is earthed prior to charging the
system with refrigerant.
• Label the system when charging is complete (if not already).
• Extreme care shall be taken not to overfill the refrigeration system.
• Prior to recharging the system it shall be pressure tested with OFN.
The system shall be leak tested on completion of charging but prior
to commissioning. A follow up leak test shall be carried out prior to
leaving the site.
1.2.17 Decommissioning
This procedure must be done by a certified technician with air condition
skills. Prior to the task being carried out, an oil and refrigerant sample
shall be taken.
An analysis may be required prior to re-use of reclaimed refrigerant.
Before starting decommissioning, check following points:
• The unit is turned off and isolated from the electrical system.
• Protective equipment is available.
• The recovery process will be done by a certified specialist.
• Recovery equipment and cylinders are conforming to standards.
Vacuum the refrigerant from the system.
Make sure that cylinder is situated on the scales before recovery takes
place.
Start the recovery machine and operate in accordance with
manufacturer's instructions.
Do not overfill cylinders. (Never fill beyond 80% due to refrigerant
expansion).
Do not exceed the maximum working pressure of the cylinder, even
temporarily.
When the cylinders have been filled correctly and the process completed,
make sure that the cylinders and the equipment are removed from site
promptly and all isolation valves on the equipment are closed off.
Recovered refrigerant shall not be charged into another refrigeration
system unless it has been cleaned and checked.
1.2.18 Labelling
Equipment shall be labelled stating that it has been de- commissioned
and emptied. The label shall be dated and signed. Ensure that there
are labels on the equipment stating the equipment contains flammable
refrigerant.
1.2.19 Recovery
When removing refrigerant from a system, either for servicing or
decommissioning, it is important that all refrigerants are removed or
recovered correctly according standards.
CLIMATE 5000 RAC SINGLE SPLIT (R32) – 6720894076 (2019/08)
When transferring refrigerant into cylinders, ensure that only appropriate
refrigerant recovery cylinders are used. Ensure that the correct number
of cylinders for 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 should be 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.
Refrigerant hoses must be equipped with valves and in good condition.
Before using the recovery machine, check that it is in good condition
and , has been properly maintained and that any associated electrical
components are sealed to prevent ignition in case of a refrigerant
leakage.
The recovered refrigerant shall be returned to the refrigerant supplier
in the correct recovery cylinder with necessary documents. 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 until flammable refrigerant does not remain
within the lubricant. The evacuation process shall be carried out prior to
returning the compressor to the suppliers.
Safety Instructions
5
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