Perlick BBR96, Руководство по обслуживанию

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Back Bar Operation Installation Manual
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• If the combustible gas leak detector signals a
release of vented refrigerant, the technician
should immediately ventilate the room, evacuate
the area, notify the homeowner or customer and
wait until the detection device reads a safe level
before conducting the following steps.
•
To reduce the risk of fire or explosion, never use
compressed air or oxygen for flushing, pressure
testing, if a repair is made to the coolant lines.
•
Purge refrigerant lines with oxygen-free
dry nitrogen (OFDN), both before and after
the repair. Technicians should be trained in
the use of OFDN purging.
• Direct purged gas discharged from the system
away from ignition sources or air intakes.
•
Use the combustible gas leak detector to
determine the environment has no flammable
refrigerant present.
•
Do not use external heat from open flame or
heating tools with glowing elements to accelerate
the defrosting process. If necessary, a hand-
held steam cleaner can be used to defrost the
evaporator coils.
Recharging or Replacing Refrigerant
•
Recharge the appliance with the exact
refrigerant specified by the manufacturer.
Any time the sealed refrigerant system
must be opened, including when the
compressor must be replaced, the original
exact refrigerant must be used. The
entire system (e.g. fittings, valves, dryers,
seals, tubes, etc.) was designed only
for the refrigerant listed on the original
compressor.
•
DO NOT use heat sources to open the coolant
lines, especially those with open flames. Use
mechanical means to cut, pierce or change
valves. If brazing of the lines is necessary, strictly
follow the instructions provided.
•
Strictly follow specifications for the recharging or
replacement of refrigerant.
Important Additional Safeguards
If an electrical fault exists that could compromise the
refrigerant, repair the electrical fault first.
Before performing service, discharge all capacitors in
the machine compartment and disconnect electricity
to the appliance, preferably at the circuit breaker.
No live electrical components or wiring should be
exposed during servicing of the refrigerant lines. If
electricity is necessary to conduct the service work
on systems other than the refrigeration system,
thoroughly test the refrigerant lines with the
combustible gas leak detector before electricity is
connected.
If the appliance has more than one refrigerant loop,
ensure all leaks are repaired and checked.
Do not expose refrigerant lines to materials that
might cause corrosion to the line or the seals such as
chlorine bleach or ammonia.
Repair or replace all electrical components with
the exact specified model and type required by the
appliance manufacturer. Many electrical components
are specifically engineered for use in appliances
with flammable refrigerants and must be replaced
accordingly.
Perform all service work in a manner to prevent
damage to electrical components and insulation.
In addition, return all wiring in such a way that the
operation of the appliance will not be damaged by
mechanical action.
Repair or replace all seals and sealing material to
ensure that the areas of the appliance are returned
to original condition.
When replacing refrigerant:
Ensure the refrigeration system is properly
grounded if the appliance is being operated during
charging.
Replace with the exact refrigerant and quantity
found on the nameplate/rating plate on the unit.
The refrigerant should be refrigerant-grade gas and
should not be contaminated with other gas materials.
Recharge with the correct amount specified by
the manufacturer. Recharge accuracy is critical
for flammable refrigerants. Consult the service
instructions for the manufacturer and product in
question. Incorrect charge sizes could result in poor
performance.