Viessmann Vitocal 200-S Installation And Service Instructions For Contractors page 26

Installation sequence
Connecting the refrigerant lines
!
2. Please note
Contamination (e.g. metal swarf) or moisture
in the refrigerant lines will cause the appli-
ance to malfunction.
Point the pipe openings downwards or tem-
porarily plug them.
Undo the nuts from connections
(hot gas line) of the refrigerant lines.
D
Types 201.D04 and 201.D06:
Slide the nuts onto the refrigerant lines prepared
on site.
Types 201.D08 to 201.D16:
Replace nuts with union nuts supplied (indoor unit):
■ UNF for liquid line
⅝
■ UNF for hot gas line
⅞
Type AWB/ Line
AWB-M/
AWB-E-AC/
AWB-M-E-AC
201.D04 Liquid line
201.D06
Hot gas line
201.D08 Liquid line
201.D10
Hot gas line
201.D13
201.D16
Connection to the indoor unit
Note
The refrigerant lines of the indoor unit are filled with
nitrogen; positive pressure 1 to 2 bar (0.1 to 0.2 MPa).
26
(cont.)
C (liquid line) and
6 mm
7
12 mm
7
10 mm
7
16 mm
7
3. Flare the pipe ends of the refrigerant lines.
4. Secure the refrigerant lines. Tighten the nuts with
the torque given below.
Connection to the
outdoor unit
⁷⁄₁₆ UNF
UNF
¾
UNF
⅝
UNF
⅞
Torque in Nm
14 to 18
50 to 62
33 to 42
63 to 77