Connecting The Refrigerant Lines; Shape Of Flare; Connecting The Refrigerant Line To The Outdoor Module - Wolf BWL-1S-05 Installation And Operating Instructions Manual

15 Connecting the refrigerant lines
15.1 Shape of flare
Fig.: Example of a flaring tool
15.2 Connecting the refrigerant line to the outdoor module
Use of metric refrigerant lines
− Remove the union nuts on the outdoor unit from refrigerant line connections C (liquid line) and
D (hot gas line).
− Replace nuts with the union nuts supplied (indoor unit)
(7/16 UNF or 5/8 UNF for liquid lines; 3/4 UNF or 7/8 UNF for hot gas line).
− Flare the pipe ends.
− Tighten the nuts.
Use of imperial refrigerant lines
− Use the union nuts on the outdoor unit from refrigerant line connections C (liquid line) and
D (hot gas line).
− Flare the pipe ends.
− Tighten the nuts.
Tighten nuts with the following torque:
Device
BWL-1S(B)-05
BWL-1S(B)-07/10/14/16
Euro flanged adaptor connection kit for
3064298_201805
Connecting the refrigerant lines
Not level Cracks
Cable
Liquid line Ø 6 mm or 1/4 inch
Hot gas line Ø 12 mm or 1/2 inch
Liquid line Ø 10 mm or 3/8 inch
Hot gas line Ø 16 mm or 5/8 inch
10 and 16 mm
Ø
Alternatively, the refrigerant lines can also be connected using the Euro flanged
adaptor connection kit for hard-soldering on refrigerant lines (lines must be flushed
with nitrogen), available from the WOLF range of accessories.
Cracks Uneven CORRECT
thickness
D
Connection to outdoor unit
7/16 UNF
3/4 UNF
5/8 UNF
7/8 UNF
C
Torque in Nm
16 ± 2
56 ± 6
37 ± 4
70 ± 7
27