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Safety operation of flammable refrigerant
Qualification requirement for installation and maintenance man
All the work men who are engaging in the refrigeration system should bear the valid certification
awarded by the authoritative organization and the qualificationfor dealing with the refrigeration
system recognized by this industry. If it needs other technician to maintain and repair the
appliance, they should be supervisedby the person who bears the qualification for using the
flammable refrigerant. It can only be repaired by the method suggested by the equipment's
manufacturer.
Installation notes
1. The air conditioner is not allowed to use in a room that has running fire (such as firesource,
working coal gas ware, operating heater).
2. It is not allowed to drill hole or burn the connection pipe.
3. The air conditioner must be installed in a room that is larger than the minimum roomarea.
The minimum room area is shown on the nameplate or following table 1.
4. Leak test is a must after installation.
Table 1:Minimum room area (m
Charge amount (kg) ≤1.2 1.3
floor location
Minimum
room area
window mounted
2
( m
)
wall mounted
ceiling mounted
Maintenance notes
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.
Check whether the maintenance area is well-ventilated.
— The continuous ventilation status should be kept during the operation process.
Check whether there is fire source or potential fire source in the maintenance area.
— The naked flame is prohibited in the maintenance area; and the "no smoking" warning
board should be hanged.
Check whether the appliance mark is in good condition.
— Replace the vague or damaged warning mark.
2
)
1.4
1.5
1.6
/
14.5 16.8 19.3 22.0 24.8 27.8 31.0 34.4 37.8 41.5 45.4 49.4 53.6
/
5.2
6.1
7.0
7.9
/
1.6
1.9
2.1
2.4
/
1.1
1.3
1.4
1.6
43
1.7
1.8
1.9
2.0
8.9 10.0 11.2 12.4 13.6
2.8
3.1
3.4
3.8
1.8
2.1
2.3
2.6
2.1
2.2
2.3
2.4
15
16.3 17.8 19.3
4.2
4.6
5
5.5
2.8
3.1
3.4
3.7
2.5
6.0
4.0
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