ENG
21
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 qualification for dealing with the refrigeration sys-
tem 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 qualification for using the flammable
refrigerant.
• It can only be repaired by the method suggested by the equipment’s manufacturer.
Installation notes
• The air conditioner is not allowed to use in a room that has running fire (such as fire
source, working coal gas ware, operating heater).
• It is not allowed to drill hole or burn the connection pipe.
• 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 a.
• Leak test is a must after installation.
table a - Minimum room area ( m
2
)
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
floor 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
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.
Welding
• If you should cut or weld the refrigerant system pipes in the process of maintaining,
please follow the steps as below:
Summary of Contents for IGZC09NI/O-1
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