65
Installation and Maintenance
Service Manual
●Check whether the appliance mark is in good condition.
— Replace the vague or damaged warning mark.
Welding
●If you should cut or weld the refrigerant system pipes in the
process of maintaining, please follow the steps as below:
a. Shut down the unit and cut power supply
b. Eliminate the refrigerant
c. Vacuuming
d. Clean it with N
2
gas
e. Cutting or welding
f. Carry back to the service spot for welding
●Make sure that there isnt any naked ame near the outlet of
the vacuum pump and its well-ventilated.
●The refrigerant should be recycled into the specialized
storage tank.
Filling the refrigerant
●Use the refrigerant filling appliances specialized for R32.
Make sure that different kinds of refrigerant wont contaminate
with each other.
●The refrigerant tank should be kept upright at the time of
lling refrigerant.
●Stick the label on the system after filling is finished (or
havent nished).
●Dont overlling.
●After filling is finished, please do the leakage detection
before test running; another time of leak detection should be
done when its removed.
Safety instructions for transportation and storage
●Please use the flammable gas detector to check before
unload and open the container.
●No re source and smoking.
●According to the local rules and laws.
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