www.dimplex.de 452172.66.10-EN · FD 0311 EN-11
LIA 0608BWCF M - LIA 1316BWCF M English
5.3.3 Toxicity and flammability limit values:
If the refrigerant fill quantity is below 1.842 kg, the toxicity limit
value is the determining factor for the installation conditions.
The fill quantity is the toxicity limit value x room volume.
The toxicity limit value corresponds to the ATEL/ODL values or
the practical limit value, whichever is higher.
R32 ATEL/ODL = 0.30
R32 practical limit = 0.061
Concentration limit (toxicity):
R32 = 1 x (0. 3) = 0. 3 kg per 1 m³ volume
º
The installer must ensure a room volume of 1 m³ per 0.3 kg of
R32 refrigerant.
LIA 0608 (1.5 kg R32) = minimum room volume 5 m³
LIA 0911 (1.65 kg R32) = minimum room volume 5.50 m³
LIA 1316 (1.84 kg R32) = minimum room volume 6.1 m³
If the refrigerant fill quantity of the system exceeds 1.842 kg,
the flammability limit value is the determining factor for the in-
stallation conditions. It should be noted here that, in contrast to
the toxicity limit value, this relates to the room area.
Calculation of the maximum permissible refrigerant fill quantity
for a given area:
Calculation of the minimum area for a given refrigerant fill
quantity:
Mmax is the maximum permissible fill quantity in a room in kg.
m is the refrigerant fill quantity in the system in kg.
Amin is the required minimum room area in m².
LFL the lower flammability limit (LFL) in kg/m³
A is the room area in m².
h0 is the height factor of the device, according to EN60335-2-
40 = 1.2 m
5.3.4 Minimum room volume
Calculated according to EN378-1_4:2016 and EN60335-2-40,
the following room sizes are obtained (see table) for the respec-
tive pipe length and the resulting fill quantity. Due to the flam-
mability and toxicity of the refrigerant, the following minimum
room sizes must be observed.
The internal unit of the heat pump system is designed in such a
way that all the refrigeration circuit components are located in
the right side of the indoor unit, at a lower edge of 0.6 metres.
The positioning of the refrigeration circuit components defines
the height factor h0 of the unit according to EN 60335-2-40.
This is needed to calculate the minimum area.
= 2,5 x LFL x h0 x A
5
4
1
2
M
max
A =
2
5
4
m
2,5 x LFL x h0
()
2
min
LIA 0608BWCF M
Pipe length m
≤15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Fill quantity kg
1.5 1.52 1.54 1.56 1.58 1.6 1.62 1.64 1.66 1.68 1.7 1.72 1.74 1.76 1.78 1.8
Minimum room volume toxicity m³
5.00 5.07 5.13 5.20 5.27 5.33 5.40 5.47 5.53 5.60 5.67 5.73 5.80 5.87 5.93 6.00
Minimum room volume flammability m³
3.26 3.30 3.34 3.39 3.43 3.47 3.52 3.56 3.60 3.65 3.69 3.74 3.78 3.82 3.87 3.91
Minimum room area flammability m²
LIA 0911BWCF M
Pipe length m
≤15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Fill quantity kg
1.65 1.688 1.726 1.764 1.802 1.84 1.878 1.916 1.954 1.992 2.03 2.068 2.106 2.144 2.182 2.22
Minimum room volume toxicity m³
5.50 5.63 5.75 5.88 6.01 6.13 6.26 6.39 6.51 6.64 6.77 6.89 7.02 7.15 7.27 7.40
Minimum room volume flammability m³
3.58 3.67 3.75 3.83 3.91 4.00 4.08 4.16 4.24 4.33 4.41 4.49 4.57 4.66 4.74 4.82
Minimum room area flammability m²
30.02 31.24 32.50 33.77 35.07 36.40 37.75 39.12 40.52 41.94
LIA 1316BWCF (M)
Pipe length m
≤15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Fill quantity kg
1.84 1.878 1.916 1.954 1.992 2.03 2.068 2.106 2.144 2.182 2.22 2.258 2.296 2.334 2.372 2.41
Minimum room volume toxicity m³
6.13 6.26 6.39 6.51 6.64 6.77 6.89 7.02 7.15 7.27 7.40 7.53 7.65 7.78 7.91 8.03
Minimum room volume flammability m³
4.00 4.08 4.16 4.24 4.33 4.41 4.49 4.57 4.66 4.74 4.82 4.90 4.99 5.07 5.15 5.23
Minimum room area flammability m²
30.02 31.24 32.50 33.77 35.07 36.40 37.75 39.12 40.52 41.94 43.39 44.87 46.36 47.89 49.43
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