Panasonic NR-B30FG1, Service Manual

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1 Safety Precautions
The following are instructions that you must follow in order to prevent accidents during work, and to ensure the safety of the repaired
product.
Hazard and damages that may result from ignoring instructions are classified and explained, below.
The following labels describe the types of rules that need to be followed.
This section warns of the urgent danger of death or serious injury.
This section warns of the risk of death or serious injury.
This section warns of the risk of injury or damage to property.
This label shows a “reminder” action to be paid attention to.
This label shows a “prohibited” action.
This label shows a “compulsory” action to be followed without fail.
Be sure to discharge remaining refrigerant from the refrigeration unit.
Discharge refrigerant outdoors where there is no fire source.
Be sure to instruct the customer not to approach the place of discharge, and not to use fire.
Always use a pipe cutter for removing pipes.
If you use a welding machine, the refrigerant remaining in the pipe or compressor could catch fire and explode.
Pipes must be blown out with nitrogen before welding, to discharge any remaining refrigerant.
Always use the swage lock for sealing after filing with refrigerant.
If you use a welding machine, the refrigerant could catch fire and explode.
Ventilation close to the floor surface is required, as the refrigerant(R600) is heavier than air.
In particular, the basement must be adequately ventilated.
“Measurement/adjustment of refrigerant refill quantity” in a service must be performed outdoors where
there is no fire source.
Otherwise, you could run the risk of fire/explosion.
Use always a gas alarm.
If any refrigerant remains in work area, there will be a risk of fire/explosion.
Never use a naked flame in a place where any refrigerant might remain.