Viessmann VITOCAL 242-S Installation And Service Instructions Manual page 28

Installation sequence
Connecting refrigerant lines
Connection to the external unit
Example type AWT-AC 241.A04
C Liquid line
1. Type AWT-AC 241.A04 and A07:
Undo the side cover: See
page 52.
28
(cont.)
2.
3.
2x
4.
D Hot gas line
!
2. Please note
Ensure that no contamination
(e.g. metal swarf) or moisture
enters the copper pipes.
Therefore, hold the pipe open-
ings downwards or tempora-
rily plug them.
Undo the nuts from connections C
and D on the refrigerant lines (liquid
line and hot gas line).
Type AWT-AC 241.A04:
Slide the nuts onto the refrigerant
lines prepared on site.
D
C
D
C