Viessmann Vitocal 300-G Installation And Service Instructions For Contractors page 120

Troubleshooting
Repairs
(cont.)
Removing the heat pump module
!
Please note
Avoid device damage.
5. Drain the primary and secondary sides
(for drain valves, see page 117).
120
3.
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U/V/W
4.
Never put weight on the top, front
or side panels of the appliance.
1.
aYH
2.