Viessmann Vitocal 200-S, Installation And Service Instructions Manual

Page: 22 / 148

22
2. Flare the pipe ends of the refrigerant
lines.
Note
If solder fittings are used, solder the
fittings using a shielding gas.
3. Fit refrigerant lines and insulate them
to provide protection from heat and
vapour diffusion.
Tighten the nuts with the following torque:
Type
AWB/
AWB-AC
Line Connection to
internal unit Torque in Nm
201.B04 Liquid line
7
6 mm ⅝ UNF
with reducer 33–42
⅝ x
⁷
⁄
₁₆
14–18
Hot gas line
7
12 mm ⅞ UNF
with reducer 63–77
⅞ x ¾ 50–62
201.B07 Liquid line
7
10 mm ⅝ UNF 33–42
Hot gas line
7
16 mm ⅞ UNF 63–77
201.B10 Liquid line
7
10 mm ⅝ UNF 33–42
Hot gas line
7
16 mm ⅞ UNF 63–77
201.B13 Liquid line
7
10 mm ⅝ UNF 33–42
Hot gas line
7
16 mm ⅞ UNF 63–77
201.C10 Liquid line
7
10 mm ⅝ UNF 33–42
Hot gas line
7
16 mm ⅞ UNF 63–77
201.C13 Liquid line
7
10 mm ⅝ UNF 33–42
Hot gas line
7
16 mm ⅞ UNF 63–77
Installation sequence
Connecting the refrigerant lines
(cont.)
5782 176 GB