Wolf BWL-1S-07 - Connecting the Refrigerant Lines; Connecting the Refrigerant Line to the Outdoor Module

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Connectingtherefrigerantlines
15 Connectingtherefrigerantlines
15.1 Shapeofare
Uneven
thickness
CORRECTNot level Cracks Cracks
15.2 Connectingtherefrigerantlinetotheoutdoormodule
C
D
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 Cable Connection to outdoor unit Torque in Nm
BWL-1S(B)-05 LiquidlineØ6mmor1/4inch 7/16 UNF 16 ± 2
HotgaslineØ12mmor1/2inch 3/4 UNF 56 ± 6
BWL-1S(B)-07/10/14/16 LiquidlineØ10mmor3/8inch 5/8 UNF 37 ± 4
HotgaslineØ16mmor5/8inch 7/8 UNF 70 ± 7
EuroflangedadaptorconnectionkitforØ10and16mm
Alternatively,therefrigerantlinescanalsobeconnectedusingtheEuroanged
adaptorconnectionkitforhard-solderingonrefrigerantlines(linesmustbeushed
with nitrogen), available from the WOLF range of accessories.
Fig.: Example of a flaring tool