Service Manual
Installation and Maintenance
16
Safety Precautions for Refrigerant
●To realize the function of the air conditioner unit, a special refrigerant circulates in the system. The used refrigerant is the
fluoride R32,which is specially cleaned. The refrigerant is flammable and inodorous. Furthermore, it can leads to explosion
under certain conditions. But the flammability of the refrigerant is very low. It can be ignited only by fire.
●Compared to common refrigerants, R32 is a nonpolluting refrigerant with no harm to the ozonosphere. The influence upon
the greenhouse effect is also lower. R32 has got very good thermodynamic features which lead to a really high energy
efficiency. The units therefore need a less filling.
WARNING:
●Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacture.
Should repair be necessary,contact your nearest authorized Service Centre. Any repairs carried out by unqualified
personnel may be dangerous. The appliance shall be stored in a room without continuously operating ignition sources. (for
example:open flames , an operating gas appliance or an operating electric heater.)
●Do not pierce or burn.
●Appliance shall be installed, operated and stored in a room with a floor area larger than 4m (or 6m ).
●Appliance filled with flammable gas R32. For repairs, strictly follow manufacturer’s instructions only.Be aware that
refrigrants not contain odour.
●Read specialist’s manual.
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 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 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
)
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.
