Sharp AF-X7BCA Operation Manual page 34

● Welding
1. If you should cut or weld the refrigerant system pipes in the process of
maintenance, 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
e. cutting or welding
f. carry back to the service spot for welding
2. The refrigerant should be recycled into the specialized storage tank.
and it's well-ventilated.
● Filling the refrigerant
kinds of refrigerant won't contaminate with each other.
another time of leak detection should be done when it's removed.
● Safety instructions for transportation and storage
1. Please use the flammable gas detector to check before unload and open the
container.
2. No fire source and smoking.
3. According to the local rules and laws.
gas
2
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ferent