Viessmann VITOCAL 151-A Installation And Service Instructions Manual page 148
Air source heat pump, monoblock version for heating and cooling operation, with 1 integrated heating/cooling circuit
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Also See for VITOCAL 151-A:
- Operating instructions for the system user (60 pages) ,
- Manual (24 pages)
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Outdoor unit maintenance
Removing the hydraulic components
Before dismantling hydraulic components from the
outdoor unit, empty the hydraulic connection lines to
the indoor unit.
Removing the float air vent valve with quick-action air vent valve
5.
4.
Fig. 89
148
2.
1.
!
1.
Note
For some parts: See separate installation instructions
for the part.
4.
3.
G 1¼
50 ±2 Nm
M8
7 ±1 Nm
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