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Safety operation of ammable refrigerant
● Qualication requirement for installation and maintenance man
1. All the work men who are engaging in the refrigeration system should bear the
valid certication awarded by the authoritative organization and the qualication
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
by the person who bears the qualication for using the ammable refrigerant.
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.
3.
Check whether there is fire source or potential fire source in the maintenance
area.
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
)
1. The air conditioner is not allowed to use in a room that has running re ( such
as re source, working coal gas ware, operating heater).
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.
Minimum
room
area( m
2
)
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
oor location / 14.5 16.8 19.3 22 24.8 27.8 31 34.3 37.8 41.5 45.4 49.4 53.6
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
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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