Danfoss BW10 020-090, Инструкции по установке, эксплуатации и обслуживанию

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Periodic check of the safety valves: See paragraph 1.3 -
“Maintenance safety considerations”.
Provide a drain in the drain pipe, close to each safety valve, to
avoid an accumulation of condensate or rain water.
All precautions concerning handling of refrigerant must be
observed in accordance with local regulations.
Ensure good ventilation, as accumulation of refrigerant in an
enclosed space can displace oxygen and cause asphyxia-tion or
explosions.
Inhalation of high concentrations of vapour is harmful and
may cause heart irregularities, unconsciousness, or death.
Vapour is heavier than air and reduces the amount of oxygen
available for breathing. These products cause eye and skin
irritation. Decomposition products are hazardous.
1.2 - Equipment and components under pressure
We recommend that you consult your appropriate national trade
association or the owner of the equipment or compo-nents
under pressure (declaration, re-qualification, retesting, etc.). The
characteristics of this equipment/these components are given on
the nameplate or in the required documenta-tion, supplied with
the products.
Do not introduce significant static or dynamic pressure with
regard to the operating pressures used during operation or
for tests in the refrigerant circuit or in the heat exchange
circuits.
1.3 - Maintenance safety considerations
Engineers working on the electric or refrigeration compo-nents
must be authorized, trained and fully qualified to do so.
All refrigerant circuit repairs must be carried out by a trained
person, fully qualified to work on these units. He must have
been trained and be familiar with the equipment and the
installation. All welding operations must be carried out by
qualified specialists.
Any manipulation (opening or closing) of a shut-off valve
must be carried out by a qualified and authorised engineer.
These procedures must be carried out with the unit shut
down.
Any intervention on the refrigerant circuit, including
changing of drier blocks, is only permitted after the complete
removal of the refrigerant charge. For these units transfer of
the refrigerant charge from the high or low-pressure side is
not possible, nor permitted.
During any handling, maintenance and service operations
the engineers working on the unit must be equipped with
safety gloves, glasses, shoes and protective clothing.
Never work on a unit that is still energised.
Never work on any of the electrical components, until the
general power supply to the unit has been cut using the
disconnect switch in the control box.
If any maintenance operations are carried out on the unit, lock
the power supply circuit in the open position ahead of the
machine.
If the work is interrupted, always ensure that all circuits are
still deenergized before resuming the work.
ATTENTION: Even if the compressor motors have been
switched off, the power circuit remains energized, unless the
unit or circuit disconnect switch is open. Refer to the wiring
diagram for further details.
Attach appropriate safety labels.
Operating checks:
IMPORTANT INFORMATION REGARDING THE
REFRIGERANT USED:
• This product contains fluorinated greenhouse gas
covered by the Kyoto protocol.
Refrigerant type: R-410A
Global Warming Potential (GWP): 1975
Periodic inspections for refrigerant leaks may be
required depending on European or local legislation.
Please contact your local dealer for more information.
• During the life-time of the system, inspection and tests
must be carried out in accordance with national
regulations.
The information on operating inspections given in annex C
of standard EN378-2 can be used if no similar criteria exist
in the national regulations.
Protection device checks:
• If no national regulations exist, check the protection
devices on site in accordance with standard EN378: once
a year for the high-pressure switches, every five years for
external safety valves.
• The detailed description of the high-pressure switch test
method is given in the service manual for the unit.
At least once a year thoroughly inspect the protection devices
(valves, pressure switches). If the machine operates in a
corrosive environment, inspect the protection devices more
frequently.
Regularly carry out leak tests and immediately repair any
leaks.