28
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Filling the indoor module and
refrigerant lines
Single refrigerant line length < 12 m
The pre-filled quantity of refrigerant in the outdoor module is sufficient for a single line
length of 3 to 12 m.
Single refrigerant line length > 12 m
Line lengths of 12 - 25 m must be topped up with an additional 60 g/m of refrigerant
R410A.
The additional refrigerant can be added after evacuating the refrigerant lines and
before opening the shut-off valves on the outdoor module.
18. Filling the refrigerant lines
Outdoor module
Indoor module
Shut-off valves
Hot gas line Ø
16
mm
Liquid gas line Ø
10
mm
Service valve (Schrader valve)
Manometer block
Vacuum gauge with shut-off valve
Vacuum pump
On the BWL-1-10/14 the hot gas line is at the top, on the BWL-1-07 at the bottom.