Viessmann VITOCAL 111-S - Page 31

31
Indoor unit: Connecting the refrigerant lines
D
C
C
D
C
D
2x
3.
4.
E
F
F
1.
2.
Fig. 23
C
Liquid line:
■
Types 111.B04 to 111.B08:
7
6 mm for ¼ UNF with reducer to ⅝ UNF
■
Types 111.A12 to 111.A16:
7
10 mm for ⅝ UNF
D
Hot gas line:
■
Types 111.B04 to 111.B08:
7
12 mm for ½ UNF
■
Types 111.A12 to 111.A16:
7
16 mm for ⅞ UNF
E
Schrader valve
F
Connector
!
Please note
Contamination (e.g. metal swarf) or moisture in
the copper pipes of the refrigerant lines will
cause the appliance to malfunction.
Point the pipe openings downwards or tempora-
rily plug them.
■
Deburr the cut ends of the pipes.
■
Types 111.B04 to 111.B08:
Flare the connections. Do not use solder fittings.
■
Only types 111.A12 to 111.A16:
If solder fittings are used, solder the fittings using a
shielding gas.
4. Apply thermal and vapour diffusion-proof insulation
to the refrigerant lines.
Installation sequence
Connecting the refrigerant lines (cont.)
6199592
Installation