3.4.5 Additional lling
The amount needed to ll the outdoor units corresponds to the maximum distances between the outdoor unit and the
hydraulic unit as dened here page 26. If the distances are greater, an additional amount of R410A is required.
For each type of appliance, this additional amount depends on the distance between the outdoor unit and the
hydraulic unit. Any additional lling with R410A must be carried out by an approved specialist.
Alféa Extensa A.I. 5, 6, 8 (Outdoor unit WOYA060LFCA, WOYA080LFCA)
15m < Length of the connections ≤ 30m
(Length of the connections - 15) x 25 g/m = g
Models /
Factory ll
Length of the connections
in m
16 17 X 29 30
Extensa A.I. 5, 6 /
1100 g
Fill amount in g
1125 1150 1100 + (X - 15) x 25 = g 1450 1475
Extensa A.I. 8 /
1400 g
1425 1450 1400 + (X - 15) x 25 = g 1750 1775
Alféa Extensa A.I. 10 (Outdoor unit WOYA100LFTA)
15m < Length of the connections ≤ 30m
(Length of the connections - 15 m) x 40 g/m = g
Model /
Factory ll
Length of the connections
in m
16 17 X 29 30
Extensa A.I. 10 /
1800 g
Fill amount in g 1840 1880 1800 + (X - 15) x 40 = g 2360 2400
Alféa Extensa A.I. 13, 16 (Outdoor unit WOYG112LHT, WOYG140LCTA)
15m < Length of the connections ≤ 20m
(Length of the connections - 15m) x 50 g/m = g
Model /
Factory ll
Length of the
connections in m
16 17 18 19 20
Extensa A.I. 13, 16 /
2500 g
Fill amount in g 2550 2600 2650 2700 2750
R410A
gure 25 - Gas bottle R410A
Liquid
Gas
Filling must be carried out after creating a vacuum and
before gassing the hydraulic unit, as follows:
- Disconnect the vacuum pump (yellow hose) and
connect a bottle of R410A in its place in the uid
extraction position.
- Open the bottle’s valve.
- Bleed the yellow hose by loosening it slightly on the
Manifold side.
- Place the bottle on scales with a minimum accuracy of
10g. Note the weight.
- Carefully open the blue valve slightly and check the
value shown on the scales.
- As soon as the value displayed has dropped by the
value for the calculated additional ll amount, close the
bottle and disconnect it.
- Quickly disconnect the hose connected to the
appliance.
- Proceed to ll the hydraulic unit with gas.
" Warning!
• Only use R410A!
• Only use tools suitable for R410A
(set of pressure gauges).
• Always ll in the liquid phase.
• Never exceed the maximum length or dierence in
level.
Installation manual "1872 - EN" - 31 -
Alféa Extensa A.I. Heat Pump