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Safety operation of flammable refrigerant
Qualification requirement for installation and maintenance man
1. All the work men who are engaging in the refrigeration system should bear the
for dealing with the refrigeration system recognized by this industry. If it needs
other technician to maintain and repair the appliance, they should be supervised
2. It can only be repaired by the method suggested by the equipment’s manufac-
turer.
● Maintenance notes
1. Check whether the maintenance area or the room area meet the requirement of
the nameplate.
- It’s only allowed to be operated in the rooms that meet the requirement of the
nameplate.
2. Check whether the maintenance area is well-ventilated.
- The continuous ventilation status should be kept during the operation process.
area.
warning board should be hanged.
4. Check whether the appliance mark is in good condition.
- Replace the vague or damaged warning mark.
● Installation notes
table- Minimum room area (m
2
)
2. The air conditioner must be installed in a room that is larger than the minimum
room area.
The minimum room area is shown on the nameplate or following table.
3. Leak test is a must after installation.
Charge amount (kg) ≤1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4 2.5
/ 14.5 16.8 19.3 22 24.8 27.8 31 34.3 37.8 41.5 45.4 49.4 53.6
Minimum
room
window mounted / 5.2 6.1 7 7.9 8.9 10 11.2 12.4 13.6 15 16.3 17.8 19.3
area (m
2
)
wall mounted / 1.6 1.9 2.1 2.4 2.8 3.1 3.4 3.8 4.2 4.6 5 5.5 6
ceiling mounted / 1.1 1.3 1.4 1.6 1.8 2.1 2.3 2.6 2.8 3.1 3.4 3.7 4
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