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Filling the indoor module and
refrigerant lines
Vacuum gauge with shut-off valve
28
18. Filling the 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.
Vacuum pump
Outdoor module
On the BWL-1-10/14 the hot gas line is at the top, on the BWL-1-07 at the bottom.
Manometer block
Service valve (Schrader valve)
Indoor module
Shut-off valves
3064298_201507
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