Wolf BWL-1 S - Connecting the Refrigerant Lines to the Outdoor Module

253064298_201507
16. Connecting the refrigerant lines
to the outdoor module
Fig.:Exampleofaangingtool
Only use copper pipes which are approved for refrigerant R410A (for nominal
diameter,see"Specication"chapter).
Suction gas lines and liquid lines must have separate thermal insulation. Closed cell,
diffusion-proof thermal insulation, min. thickness 6 mm
Do not allow any contaminants (e.g. metal swarf or moisture) to enter the
copper pipes.
Remove the union nuts of the outdoor unit from connections C (liquid line) and D
(hot gas line) of the refrigerant lines.
Replace nuts with the union nuts supplied (indoor unit) (5/8 UNF for liquid line,
7/8 UNF for hot gas line).
Flare the pipe ends
Tighten the nuts
Tighten nuts with the following torque:
Line Connection to outdoor unit Torque in Nm
Liquid line Ø 10 mm 5/8 UNF 37 +/- 4
Hot gas line Ø 16 mm 7/8 UNF 70 +/- 7
Connecting the refrigerant line to
the outdoor module
Uneven
thickness
CORRECTNot level Cracks Cracks
Shapeofare
C
D
Euroangedadaptorconnectionkit
Alternatively,therefrigerantlinescanalsobeconnectedusingtheEuroanged
adapter connection kit for hard-soldering on refrigerant lines (available from the Wolf
range of accessories).