ARCTIC WIND 3AWH8000A handleiding
Handleiding
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11
IMPORTANT SAFETY INSTRUCTION
appliances containing ammable refrigerants,
the system shall be purged with oxygen-free
nitrogen ammable refrigerants. This process
might compressed air or oxygen shall not be
used for purging refrigerant systems.
• For appliances containing ammable
refrigerants, refrigerants purging shall be
achieved by breaking the vacuum in the system
with oxygen-free nitrogen and continuing to
ll until the working pressure is achieved, then
venting to atmosphere, and nally pulling down
to a vacuum (optional for A2L).
• This process shall be repeated until no
refrigerant is within the system (optional for A2L).
When the nal oxygen-free nitrogen charge
is used, the system shall be vented down to
atmospheric pressure to enable work to take
place. The outlet for the vacuum pump shall not
be close to any potential ignition sources, and
ventilation shall be available.
CHARGING PROCEDURES
• In addition to conventional charging procedures,
the following requirements should be followed.
• Ensure that contamination of dierent
refrigerants does not occur when using
charging equipment.
• Hoses or lines should be as short as possible
to minimize the amount of refrigerant
contained in them.
• Cylinders should 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 should be taken not to overll
the refrigeration system.
• Prior to recharging the system, it should be
pressure tested with OFN.
• The system should be leak tested on
completion of charging but prior to
commissioning.
• A follow up leak test should be carried out
prior to leaving the site.
DECOMMISSIONING
• Before carrying out this procedure, it is essential
that the technician is completely familiar with the
equipment and all its detail. It is recommended
good practice that all refrigerants are recovered
safely. Prior to the task being carried out, an oil
and refrigerant sample should be taken in case
analysis is required prior to re-use of reclaimed
refrigerant. It is essential that electrical power is
available before the task is commenced.
• Become familiar with the equipment and its
operation.
• Isolate the system electrically.
• Before attempting the procedure ensure that:
• When breaking into the refrigerant circuit
to make repairs or for any other purpose,
conventional procedures should be used.
• Mechanical handling equipment is available,
if required, for handling refrigerant cylinders.
• Personal protective equipment is available
and being used correctly.
• The recovery process is supervised at all
times by a competent person.
• Recovery equipment and cylinders conform
to the appropriate standards.
• Pump down refrigerant system, if possible.
• If a vacuum is not possible, make a manifold so
that refrigerant can be removed from various
parts of 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 overll cylinders. (No more than 80 %
volume liquid charge).
• Do not exceed the maximum working pressure
of the cylinder, even temporarily.
• When the cylinders have been lled correctly
and the process is completed, make sure that
the cylinders and the equipment are removed
from the site promptly and all isolation valves on
the equipment are closed o.
• Recovered refrigerant should not be charged
into another refrigeration system unless it has
been cleaned and checked.
WARNING
For using R32 refrigerant
(Continued)
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Productinformatie
| Merk | ARCTIC WIND |
| Model | 3AWH8000A |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 4452 MB |
