Maintenance Overview Of Electrical Components; Removing The Outer Casing - Viessmann Vitocal 300-A Installation And Service Instructions Manual

Maintenance
Overview of electrical components
Heat pump: see page 23.
■
■ Heat pump controller: see page 29.

Removing the outer casing

Remove the complete outer casing on all 4 sides of the
heat pump: steps 3 to 11 from page 48 in reverse
order.
Note
For some repair work it is sufficient to remove the
outer casing on one side of the heat pump.
For work on the hydraulic connections, for example, it
is sufficient to remove the lower 3 parts of the outer
casing (steps 3, 5 and 6 on page 48 in reverse order).
To find the required side of the heat pump, you will
have to feel for the hydraulic connections.
Fig. 48
62