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SAFETY NOTICES FOR MAINTENANCE
1. Do not puncture or light the unit.
2. The unit shall be stored in a room without continuous fire source (e.g. naked
fire, litten gas appliance, operating electric heater).
3. The unit shall be stored in a ventilated place; the ventilation device shall operate
normally and ventilation port shall be without obstacle;
4. Check the unit periodically to see if there is collision mark and if the appearance
is good.
5. Check the electronic components (e.g. cable) periodically to see there is breakage.
6. Do not impact or collapse the unit to avoid leakage of refrigerant; if leakage is
founded, please arrange ventilation immediately and ask the professionals for
maintenance, in order to avoid a fire hazard.
Storage after moving the unit
Disposal and recycle
Disposal
：
The technician shall be familiar with the device and all its characteristics before
disposal. Proceeding safe recycle of refrigerant is recommended. If the recycled
refrigerant shall be utilized, please analyze the sample of refrigerant and oil before
proceeding. Please ensure the required power supply before testing. Please take
the following operation:
1. Be familiar with the device and its operation;
2. Cut off power supply;
3. Make sure the following items before proceeding: If needed, mechanical operation
device shall be convenient for the operation of refrigerant tank; all personal
protection apparatuses shall be workable and they are used correctly; the whole
recycle procedure shall be done under the instruction of qualified person; recycle
device and refrigerant tank shall comply with relevant standards.
4. Please arrange vacuum pumping to the refrigeration system if possible; if
vacuum status cannot be reached, please arrange vacuum pumping from several
positions in order to recycle the refrigerant in different parts of the system;
5. Make sure the capacity of refrigerant tank is sufficient before starting recycle;
6. Start and operate the recycle device according to the operation instruction of
manufacturer;
7. The refrigerant tank shall not be too full. (the filled liquid shall not exceed 80% of
the capacity of refrigerant tank);
8. Do not exceed the maximum operation pressure although the duration is short;
9. Remove the refrigerant tank and device quickly after finishing operation and make
sure all cut-off valves in the device are closed;
10. The recycled refrigerant cannot be filled into another refrigeration system before
purification and inspection.
