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Important Considerations
Before installing the appliance, you must read the manual carefully to get the safety information
and notes.
When filling the combustible refrigerant, any of your rude operations may cause serious injury or
injuries to human body or bodies and object or objects.
A leak test must be done after the installation is completed.
It is a must to do the safety inspection before maintaining or repairing an air conditioner using
combustible refrigerant in order to ensure that the fire risk is reduced to minimum.
It is necessary to operate the machine under a controlled procedure in order to ensure that any risk
arising from the combustible gas or vapor during the operation is reduced to minimum.
Requirements for the total weight of filled refrigerant and the area of a room to be equipped with
an air conditioner (are shown as in the following Tables GG.1 and GG.2)
The maximum charge and the required minimum floor area
3
m = (4 m ) x LFL , m = (26 m )) x LFL, m = (130 m )x LFL
1
2
Where LFL is the lower flammable limit in kg/ m R32 LFL is 0.306 kg/ m .
For the appliances with a charge amount m < M
The maximum charge in a room shall be in accordance with the following:m = 2.5 x ( LFL)
The required minimum floor area Amin to install an appliance with refrigerant charge M (kg)
shall be in accordance with following: A
Where:
m
is the allowable maximum charge in a room, in kg;
max
M is the refrigerant charge amount in appliance, in kg;
Amin is the required minimum room area, in m2;
A is the room area, in m ;
LFL is the lower flammable limit, in kg/m ;
h is the installation height of the appliance, in meters for calculating m
Category
LFL
Category
(kg/m )
INSTALLATION & ASSEMBLY INSTRUCTIONS
3
3
1
= (M/ (2. 5 x (LFL)
min
2
3
Table GG.1 Maximum charge (kg)
LFL
h
3
(kg/m )
(m)
Table GG.2 Minimum room area (m )
h
3
(m)
3
3
m :
2
(5/4)
2
x h ))
Floor area(m )
Charge amount (M) ( kg)
Minimum room area(m )
PAGE 11 OF 19
3
(5/4)
x h x (A)
max
or A , 1.8 m for wall mounted;
max
min
2
2
2
1/ 2
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